Manjari Mehrotra, Dr. A.K Pandey

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Manjari Mehrotra, Dr. A.K Pandey"

Transcription

1 ISO 91:28 Certified Volume 2, Issue 5, November 212 Harmonics Analysis of VSI Fed Induction Motor Drive Abstract- This paper mainly focus on harmonics analysis of three phase AC supply available from three phase inverter which is fed to induction motor drive. Ideally the output of inverter should be sinusoidal but due to harmonics the output having distorted waveforms. Harmonics analysis has been done by using the MATLAB /simulink/fft. Index terms- Duty Cycle, Modulation-Index, Pulse Width Modulation. I. INTRODUCTION Nonconventional energy resources are very suitable solution for the modern requirement of energy demand. For the future energy demands and gives quality pollution free supply to the growing and today s environment conscious population, the present world attention is to go in the natural, clean and renewable energy sources. Most renewable forms of energy, other than Geothermal and Tidal power ultimately come from sun. Renewable energy resources may be used directly, such as solar ovens, Geothermal heating or indirectly by transforming to other more convenient forms of energy such as electricity generation through wind turbines or photo voltaic cells. Now a day about 6% of total load is motor load & 9% of this is induction motor load. AC motors are preferred on DC motor for industrial application. This is because construction of DC motor is very complicated due to use of commutator and brushes. Also commutation process involves losses due to arcing. Hence induction motor drive gives satisfactory performance as compared to DC motor drive. Energy comes from photovoltaic cell is dc before converting it in ac firstly dc is step up by Boost converter. MOSFET is used as switching devices in boost converter and it has very high switching frequency of range 2 KHz.. To get pure DC voltage in output of boost converter a DC π- filter is used. II. PULSE-WIDTH-MODULATED INVERTERS DC to AC converters is known as inverter. The function of an inverter is to change a DC input voltage to a symmetric to its AC output voltage of desired magnitude and frequency. The output voltage could be fixed or variable at a fixed or variable frequency. A variable output voltage can be obtained by varying the input DC voltage and maintaining the gain of the inverter constant. If the DC input voltage is fixed and it is not controllable, a variable output voltage can be obtained by varying the gain of the inverter, which is normally accomplished by pulse width modulation control within the inverter. The inverter gain may be defined as the ratio of the AC output voltage to DC input voltage [6]. Manjari Mehrotra, Dr. A.K Pandey 36 The output voltage waveforms of ideal inverters should be sinusoidal. However, the waveforms of practical inverter are non-sinusoidal and contain certain harmonics. For low and medium power application, square wave or quasi square wave voltages may be acceptable; and for high power application, low distorted sinusoidal waveforms are required. With the availability of high speed power semiconductors devices, the harmonics contents of output voltage can be minimized or reduced significantly by switching techniques. Pulse width modulation techniques are used in this paper for the modulation purpose. Out of 12 and 18 conduction mode later one is used due to the more utilization of switches in it. In this conduction mode each thyristor conducts for 18 and same branch thyristors will conduct after 12. With the help of such techniques harmonics are reduced in three phase voltage source inverter. Different PWM techniques are as under [11]. (i) Single-pulse modulation. (ii) Multiple-pulse modulation. (iii) Sinusoidal pulse modulation. In PWM inverters, forced commutation is essential. The three PWM techniques listed above differ from each in the harmonic content in their respective output voltage. Thus, choice of a particular PWM technique depends upon the harmonic content in the inverter output voltage [8]. In industrial applications, PWM inverter is supplied from a diode bridge rectifier and an LC filters. A. Single Pulse Width Modulations In single pulse-width-modulation control, there is only one pulse per half cycle and width of the pulse is varied to control the inverter output voltage. The gating signals are generated by comparing a rectangular reference signal of amplitude, A r, with a triangular carrier wave of amplitude, A c. The frequency of the reference signal determines the fundamental frequency of output voltage. By varying A r, from to A c, the pulse width, δ can be varied from to 18 degree. The ratio of A r to A c is the control variable defined as the amplitude modulation index. The amplitude modulation index or simply modulation index. M= (1) The rms output voltage can be found from V (2) = (3) The Fourier series of output voltage yields

2 ISO 91:28 Certified Volume 2, Issue 5, November 212 (4) Due to the symmetry of the output voltage along x- axis, the even harmonics (for n=2, 4,6 ) are absent. The Figure 1 shows the single pulse modulation. Fig 1 Single Pulse Width Modulation B. Multi-Pulse Width Modulation The harmonic content can be reduced by using several pulses in each half-cycle of output voltage. The frequency of reference signals sets the output frequency f o, and the carrier frequency f c determines the no of pulses per half cycle p. The modulation index controls the output voltage. This type of modulation is also known as uniform pulse-width modulation (UPWM). The no of pulses per half cycle is found from: (5) (6) = (7) C. Sinusoidal Pulse-Width Modulation Instead of maintaining the width of all pulse the same as in the case of multiple pulse modulation, the width of each pulse is varied in proportion to the amplitude of a sine wave evaluated at the centre of the same pulse. The distortion factor and lower order harmonics are reduced significantly [1]. The reference signal with a triangular carrier wave of frequency,. This type of modulation is commonly used in industrial applications and abbreviated as SPWM. The frequency of difference signal determines the inverter output frequency, and it peak amplitude, control the modulation index, M, and then in turn the rms output voltage the no. of pulse per half cycle depends on the frequency. The arm output voltage can be varied by varying the modulation index M. it can be observed that the area of each pulse corresponds approximately to the area under the area under the sine wave between the adjacent midpoints of off periods on the gating signals. If is the width of m th pulse can be extended to find the rms output voltage = (8) It can also be applied to determine the Fourier coefficient of output voltage as = [sin n ( + ) sin n ( + + )] (9) Where modulation ratio. is defined as the frequency Fig 2 Multi- Pulse Width Modulation If δ is the width of each pulse, the rms output voltage can be found from: 37 Fig 3 Sinusoidal Pulse Width Modulation The distortion factor is significantly reduced compare to that of multiple-pulse modulation. This type of modulation eliminated all harmonics less than or equal to 2p-1 for p=5, the lowest order harmonics is ninth. The

3 output voltage without filter ISO 91:28 Certified output voltage of an inverter contains harmonics. The PWM pushes the harmonics into a high frequency range around the switching frequency and is multiple, that is around harmonics and so on. The frequency at which the voltage harmonics occur can be related by = ( ±ĸ) (1) Where the nth harmonics equal the k th sideband of j times the frequency-modulation ratio n =j ±k =2jp±k for j=1, 2, 3.. k=1, 2, 3. The peak fundamental output voltage for PWM and SPWM control can be found approximately from =δ for δ 1. (11) Volume 2, Issue 5, November 212 IV. SIMULATION RESULTS The simulink model of inverter consists of supply, PWM inverter and filters. The line and phase voltages of inverter can be obtained from V-I measurement block from there filtered value of inverter line voltage is obtained. The simulink block diagram is designed to obtain the different waveforms. For the satisfactory performance of a drive output should be ripple free so that the input taken from the inverter is analyzed for harmonics. Firstly, the harmonics are reduced by pulse width modulation (PWM) technique. After that the ac output of inverters having ripples are fed to the low pass filter. With the use of filters ripple are reduced in the output. Fig 4 Simulink Block Diagram Of VSI Fed Induction Motor Drive The average output voltage of boost converter is found approximately same to the rated value of output voltage of boost converter. The output of boost converter is not pure dc but it contains some ripple which is observed at the scope. For getting a smooth dc a pie (π) filter is used at the output side of boost converter. Due to this filter output voltage of boost converter becomes approximately smooth and very less ripple is present in output voltage Time(sec) Fig 5 Boost Converter Output Voltage before Filter Figure 6 shows the boost converter output with filter. The X-axis shows the time (sec) and Y axis shows the magnitude of output voltage of boost converter. After filteration output voltage of 4V is reached as same of 38

4 Stator Current (A) Output voltage with filter Rotor Current (A) ISO 91:28 Certified rated value. Both diagrams can be obtained from the above simulink blocks. Firstly, some transients occur. Volume 2, Issue 5, November Time(sec) Fig 6 Boost Converter Output Voltage after Filter Figure 7 shows the inverter output voltage. From the diagram it is clear that the waveform is very much close to the sinusoidal output. THD of this waveform is about 3.5% Fig 8 Rotor Current of Induction Motor Figure 9 shows the waveform of stator current. X-axis shows the time(sec) and Y-axis shows the stator current(a). At starting there are no of spikes which are due to the transients after that steady -state condition is achieved Fig 7 Inverter Filtered Output Voltage The initial part of waveform is very distorted due to transients but at steady state the output voltage and current is approximately same as the rated value. Figure8 shows the rotor current waveform. X-axis shows the time (sec) and the Y-axis shows the rotor current. Fig 9 Stator Current of Induction Motor The speed of motor is during transient period is less but during steady state it is approximately same to the rated speed of motor i.e. 147 rpm. The mechanical torque developed by motor is observed to be N-m which is approximately same to the rated mechanical torque at the rated output power. Figure 1 shows the motor torque waveform. X-axis shows the time (sec) and Y-axis shows the torque (N-m). 39

5 Speed (rpm) Torque (N-m) ISO 91:28 Certified Fig 1 Motor torque in N-m Volume 2, Issue 5, November 212 [3] T.Ohnishi and H.Okitsu, A novel PWM technique for three phase inverter/converter, International Power Electronics Conference, 1983, pp [4] K.Thorborg and H.Irie, Trapezoidal modulating signal for three-phase PWM inverter, IEEE Transactions on Industrial Electronics, Vol.IE3,No.2,1986,pp [5] K. Thorborg and A. Nystorm, Staircase PWM: an uncomplicated and efficient modulation technique for ac motor drives, IEEE Transactions on Power Electronics, Vol IA27, No.5, 1991, pp [6] M.H Ohsato, G. Kimura, and M. Shioya, Five-stepped PWM inverter used in photo-voltaic systems, IEEE Transactions on Industrial Electronics, Vol.38, October, 1991, pp [7] P.D. Ziogas, The delta modulation techniques in static PWM inverters, IEEE Transactions on Industry Applications, March/April 1981,pp [8] R.O CaCeras and I.Barbi, A boost dc-ac converter: Analysis, design and experimentation IEEE Transactions on Power Electronics, Vol 14, No.1, January 1999, pp [9] R.O CaCeras and I.Barbi, A boost dc-ac converter: Operation, analysis, control and experimentation, Industrial Electronics control and Instrumentation Conference, November 1995,pp [1] H.S Patel and R.G Hoft, Generalized techniques of harmonic elimination and voltage control in thyristor converter, IEEE Transactions on Industrial Applications Vol IA9, No ,pp ,Vol.IA1,No.5,1974,pp Fig 11 Motor speed in rpm Figure 11 shows the motor speed waveform. Due to the minimization of harmonics in the output voltage of inverter the settling time becomes to small, here it is.3 sec and the speed will be equal to the rated speed. X-axis shows the time (sec) and Y-axis shows the speed (rpm). V. CONCLUSION In this paper the model circuit has been simulated and various waveforms of output voltage and current have been analyzed. The practical value of voltage, current, speed and torque is same to the rated value of induction motor drive. The waveform of inverter output voltage is not pure sinusoidal because of presence of harmonics. The THD analyzed from the FFT analysis is 3.5%. These harmonics are generated in two manners. One from the power semiconductor device which are used as switching device in inverter and other from the nonlinear load (induction motor drive). Due to nonlinear load inter harmonics also come in inverter output voltage. REFERENCES [1] B.Biswas and P. Purkait Current Harmonic analysis of inverter fed induction motor drive system under fault condition IMECS29. [2] B.D. Bediford and R.G. Hoft, Principal of inverter circuits. New York: John Wiley and Sons

Simulation and Analysis of PWM Inverter Fed Induction Motor Drive

Simulation and Analysis of PWM Inverter Fed Induction Motor Drive Simulation and Analysis of PWM Inverter Fed Induction Motor Drive C.S.Sharma, Tali Nagwani Abstract Sinusoidal Pulse Width Modulation variable speed drives are increasingly applied in many new industrial

More information

APPLICATION NOTE - 017

APPLICATION NOTE - 017 APPLICATION NOTE - 017 PWM Motor Drives Theory and Measurement Considerations Pulse Width Modulated (PWM) power electronic techniques represent a large and increasing proportion of modern power electronics.

More information

FREQUENCY CONTROLLED AC MOTOR DRIVE

FREQUENCY CONTROLLED AC MOTOR DRIVE FREQUENCY CONTROLLED AC MOTOR DRIVE 1.0 Features of Standard AC Motors The squirrel cage induction motor is the electrical motor motor type most widely used in industry. This leading position results mainly

More information

Modified Cascaded Five Level Multilevel Inverter Using Hybrid Pulse Width Modulation

Modified Cascaded Five Level Multilevel Inverter Using Hybrid Pulse Width Modulation International Journal of Computer Sciences and Engineering Open Access Research Paper Volume-4, Special Issue-2, April 2016 E-ISSN: 2347-2693 Modified Cascaded Five Level Multilevel Inverter Using Hybrid

More information

Analysis of Space Vector Pulse Width Modulation VSI Induction Motor on various conditions

Analysis of Space Vector Pulse Width Modulation VSI Induction Motor on various conditions Analysis of Space Vector Pulse Width Modulation VSI Induction Motor on various conditions Padma Chaturvedi 1, Amarish Dubey 2 1 Department of Electrical Engineering, Maharana Pratap Engineering College,

More information

Design and Development of Speed Control of Induction motor drive using Pulse-Width Modulation

Design and Development of Speed Control of Induction motor drive using Pulse-Width Modulation Design and Development of Speed Control of Induction motor drive using Pulse-Width Modulation Jigar Vaidya 1, Vatsal Shukla 2, Darshan Kale 3 1 UG Student, Electrical Department,jdv27993@gmail.com, +91-9662532919

More information

Harmonics and Noise in Photovoltaic (PV) Inverter and the Mitigation Strategies

Harmonics and Noise in Photovoltaic (PV) Inverter and the Mitigation Strategies Soonwook Hong, Ph. D. Michael Zuercher Martinson Harmonics and Noise in Photovoltaic (PV) Inverter and the Mitigation Strategies 1. Introduction PV inverters use semiconductor devices to transform the

More information

Modelling, Simulation and Performance Analysis of A Variable Frequency Drive in Speed Control Of Induction Motor

Modelling, Simulation and Performance Analysis of A Variable Frequency Drive in Speed Control Of Induction Motor International Journal of Engineering Inventions e-issn: 78-7461, p-issn: 319-6491 Volume 3, Issue 5 (December 013) PP: 36-41 Modelling, Simulation and Performance Analysis of A Variable Frequency Drive

More information

New Pulse Width Modulation Technique for Three Phase Induction Motor Drive Umesha K L, Sri Harsha J, Capt. L. Sanjeev Kumar

New Pulse Width Modulation Technique for Three Phase Induction Motor Drive Umesha K L, Sri Harsha J, Capt. L. Sanjeev Kumar New Pulse Width Modulation Technique for Three Phase Induction Motor Drive Umesha K L, Sri Harsha J, Capt. L. Sanjeev Kumar Abstract In this paper, various types of speed control methods for the three

More information

Fundamentals of Power Electronics. Robert W. Erickson University of Colorado, Boulder

Fundamentals of Power Electronics. Robert W. Erickson University of Colorado, Boulder Robert W. Erickson University of Colorado, Boulder 1 1.1. Introduction to power processing 1.2. Some applications of power electronics 1.3. Elements of power electronics Summary of the course 2 1.1 Introduction

More information

AMZ-FX Guitar effects. (2007) Mosfet Body Diodes. http://www.muzique.com/news/mosfet-body-diodes/. Accessed 22/12/09.

AMZ-FX Guitar effects. (2007) Mosfet Body Diodes. http://www.muzique.com/news/mosfet-body-diodes/. Accessed 22/12/09. Pulse width modulation Pulse width modulation is a pulsed DC square wave, commonly used to control the on-off switching of a silicon controlled rectifier via the gate. There are many types of SCR s, most

More information

POWER SYSTEM HARMONICS. A Reference Guide to Causes, Effects and Corrective Measures AN ALLEN-BRADLEY SERIES OF ISSUES AND ANSWERS

POWER SYSTEM HARMONICS. A Reference Guide to Causes, Effects and Corrective Measures AN ALLEN-BRADLEY SERIES OF ISSUES AND ANSWERS A Reference Guide to Causes, Effects and Corrective Measures AN ALLEN-BRADLEY SERIES OF ISSUES AND ANSWERS By: Robert G. Ellis, P. Eng., Rockwell Automation Medium Voltage Business CONTENTS INTRODUCTION...

More information

Design and Simulation of Soft Switched Converter Fed DC Servo Drive

Design and Simulation of Soft Switched Converter Fed DC Servo Drive International Journal of Soft Computing and Engineering (IJSCE) ISSN: 2231-237, Volume-1, Issue-5, November 211 Design and Simulation of Soft Switched Converter Fed DC Servo Drive Bal Mukund Sharma, A.

More information

WIND TURBINE TECHNOLOGY

WIND TURBINE TECHNOLOGY Module 2.2-2 WIND TURBINE TECHNOLOGY Electrical System Gerhard J. Gerdes Workshop on Renewable Energies November 14-25, 2005 Nadi, Republic of the Fiji Islands Contents Module 2.2 Types of generator systems

More information

Comparative Analysis of ZSI Fed IM Drive And VSI Fed IM Drive With Variable Torque

Comparative Analysis of ZSI Fed IM Drive And VSI Fed IM Drive With Variable Torque International Journal of Engineering and Technical Research (IJETR) ISSN: 3-869, Volume-, Issue-3, March 4 Comparative Analysis of ZSI Fed IM Drive And VSI Fed IM Drive With Variable Torque Swapnil N.

More information

Performance Analysis of Different Control Strategies in a Z-source Inverter

Performance Analysis of Different Control Strategies in a Z-source Inverter EASR - Engineering, echnology & Applied Science Research Vol. 3, o., 013, 391-395 391 Performance Analysis of Different Control Strategies in a Z-source Inverter Byamakesh Nayak School of Electrical Engineering

More information

Wave Shaping Of Current Using PWM Rectifiers

Wave Shaping Of Current Using PWM Rectifiers International Journal of Engineering and Technical Research (IJETR) Wave Shaping Of Current Using PWM Rectifiers Mahasweta Bhattacharya, Ashish Srivastava Abstract The paper presents the modeling and analysis

More information

Variable Voltage Variable Frequency Speed Control of Induction Motor Using FPGA-Xilinx

Variable Voltage Variable Frequency Speed Control of Induction Motor Using FPGA-Xilinx Variable Voltage Variable Frequency Speed Control of Induction Motor Using FPGA-Xilinx Ravi Prakash 1, Prof. Rishi Kumar Singh 2, Rajeev Ranjan Kumar 3 1Ravi Prakash,Department of Electrical Engineering,

More information

Modeling and Simulation of a Novel Switched Reluctance Motor Drive System with Power Factor Improvement

Modeling and Simulation of a Novel Switched Reluctance Motor Drive System with Power Factor Improvement American Journal of Applied Sciences 3 (1): 1649-1654, 2006 ISSN 1546-9239 2006 Science Publications Modeling and Simulation of a Novel Switched Reluctance Motor Drive System with Power Factor Improvement

More information

Analysis and Control of Three Phase Multi level Inverters with Sinusoidal PWM Feeding Balanced Loads Using MATLAB

Analysis and Control of Three Phase Multi level Inverters with Sinusoidal PWM Feeding Balanced Loads Using MATLAB Analysis and Control of Three Phase Multi level s with Sinusoidal PWM Feeding Balanced Loads Using MATLAB Rajesh Kumar Ahuja 1, Amit Kumar 2 Department of Electrical Engineering, YMCA University of Science

More information

The full wave rectifier consists of two diodes and a resister as shown in Figure

The full wave rectifier consists of two diodes and a resister as shown in Figure The Full-Wave Rectifier The full wave rectifier consists of two diodes and a resister as shown in Figure The transformer has a centre-tapped secondary winding. This secondary winding has a lead attached

More information

Principles of Adjustable Frequency Drives

Principles of Adjustable Frequency Drives What is an Adjustable Frequency Drive? An adjustable frequency drive is a system for controlling the speed of an AC motor by controlling the frequency of the power supplied to the motor. A basic adjustable

More information

Renewable Energy Sources Based Permanent Magnet Brushless DC Motor Drive

Renewable Energy Sources Based Permanent Magnet Brushless DC Motor Drive IJIRST International Journal for Innovative Research in Science & Technology Volume 1 Issue 6 November 2014 ISSN (online): 2349-6010 Renewable Energy Sources Based Permanent Magnet Brushless DC Motor Drive

More information

Analysis of AC-DC Converter Based on Power Factor and THD

Analysis of AC-DC Converter Based on Power Factor and THD Website: www.ijetae.com (SSN 50-459, SO 900:008 Certified Journal, Volume 3, ssue, February 03) Analysis of AC-DC Converter Based on Power Factor and THD Shiney.S.Varghese, Sincy George Department of Electrical

More information

A MULTILEVEL INVERTER FOR SYNCHRONIZING THE GRID WITH RENEWABLE ENERGY SOURCES BY IMPLEMENTING BATTERY CUM DC-DC CONERTER

A MULTILEVEL INVERTER FOR SYNCHRONIZING THE GRID WITH RENEWABLE ENERGY SOURCES BY IMPLEMENTING BATTERY CUM DC-DC CONERTER A MULTILEVEL INVERTER FOR SYNCHRONIZING THE GRID WITH RENEWABLE ENERGY SOURCES BY IMPLEMENTING BATTERY CUM DC-DC CONERTER 1 KARUNYA CHRISTOBAL LYDIA. S, 2 SHANMUGASUNDARI. A, 3 ANANDHI.Y 1,2,3 Electrical

More information

Closed Loop PWM Control for Induction Motor Drive Using Dual Output Three Phase Inverter

Closed Loop PWM Control for Induction Motor Drive Using Dual Output Three Phase Inverter Closed Loop PWM Control for Induction Motor Drive Using Dual Output Three Phase Inverter Archana.P 1, Karthick.R 2 Pg Scholar [PED], Department of EEE, CSI College of Engineering, Ketti, Tamilnadu, India

More information

Pulse Width Modulation

Pulse Width Modulation Pulse Width Modulation Pulse width modulation (PWM) is a technique in which a series of digital pulses is used to control an analog circuit. The length and frequency of these pulses determines the total

More information

Pulse Width Modulated (PWM) Drives. AC Drives Using PWM Techniques

Pulse Width Modulated (PWM) Drives. AC Drives Using PWM Techniques Drives AC Drives Using PWM Techniques Power Conversion Unit The block diagram below shows the power conversion unit in Pulse Width Modulated (PWM) drives. In this type of drive, a diode bridge rectifier

More information

APPLICATION OF SLIDING CONTROL METHOD TO AN ARC WELDING MACHINE AND COMPARING ITS PERFORMANCE WITH THAT OF CONVENTIONAL PI METHOD

APPLICATION OF SLIDING CONTROL METHOD TO AN ARC WELDING MACHINE AND COMPARING ITS PERFORMANCE WITH THAT OF CONVENTIONAL PI METHOD APPLICATION OF SLIDING CONTROL METHOD TO AN ARC WELDING MACHINE AND COMPARING ITS PERFORMANCE WITH THAT OF CONVENTIONAL PI METHOD *Ahmet KARAARSLAN **Đres ĐSKENDER e-mail: akaraarslan@gazi.edu.tr e-mail:

More information

High Intensify Interleaved Converter for Renewable Energy Resources

High Intensify Interleaved Converter for Renewable Energy Resources High Intensify Interleaved Converter for Renewable Energy Resources K. Muthiah 1, S.Manivel 2, Gowthaman.N 3 1 PG Scholar, Jay Shriram Group of Institutions,Tirupur 2 Assistant Professor, Jay Shriram Group

More information

Power Quality For The Digital Age INVERTING SOLAR POWER A N E N V IRONME N TA L P OT E N T I A L S W HI T E PA PER. www.ep2000.com 800.500.

Power Quality For The Digital Age INVERTING SOLAR POWER A N E N V IRONME N TA L P OT E N T I A L S W HI T E PA PER. www.ep2000.com 800.500. Power Quality For The Digital Age INVERTING SOLAR POWER A N E N V IRONME N TA L P OT E N T I A L S W HI T E PA PER Introduction Heat in the System The modern facility has been revolutionized by advancements

More information

Chopper Based Speed Control of DC Motor

Chopper Based Speed Control of DC Motor Chopper Based Speed Control of DC Motor 1 Krunal Shah, 2 Vidhi Shah, 3 Deepak Mistry 1 Assistant Professor, 2 Assistant Professor, 3 ME pursuing, Gujarat, India. Abstract: The DC motor is an attractive

More information

CYCLOCONVERTERS. Fig.1 Block diagram of a cycloconverter

CYCLOCONVERTERS. Fig.1 Block diagram of a cycloconverter CYCLOCONVERTERS Burak Ozpineci, Leon M. Tolbert Department of Electrical and Computer Engineering University of Tennessee-Knoxville Knoxville, TN 37996-2100 In industrial applications, two forms of electrical

More information

AN ULTRA-CHEAP GRID CONNECTED INVERTER FOR SMALL SCALE GRID CONNECTION

AN ULTRA-CHEAP GRID CONNECTED INVERTER FOR SMALL SCALE GRID CONNECTION AN ULTRA-CHEAP GRID CONNECTED INVERTER FOR SMALL SCALE GRID CONNECTION Pramod Ghimire 1, Dr. Alan R. Wood 2 1 ME Candidate Email: pgh56@student.canterbury.ac.nz 2 Senior Lecturer: Canterbury University

More information

Speed Control and Power factor Correction using Bridgeless Buck Boost Converter for BLDC Motor Drive

Speed Control and Power factor Correction using Bridgeless Buck Boost Converter for BLDC Motor Drive Speed Control and Power factor Correction using Bridgeless Buck Boost Converter for BLDC Motor Drive R.shanthini 1 Dr.K.Boopathy 2 1 Mtech, EEE, B.S.Abdur Rahman University,Chennai 2 Associate professor,

More information

Pulse Width Modulated (PWM)

Pulse Width Modulated (PWM) Control Technologies Manual PWM AC Drives Revision 1.0 Pulse Width Modulated (PWM) Figure 1.8 shows a block diagram of the power conversion unit in a PWM drive. In this type of drive, a diode bridge rectifier

More information

Simulation and Analysis of AC-AC Converter With Improved Power Quality

Simulation and Analysis of AC-AC Converter With Improved Power Quality 24 IJEDR Volume 2, Issue ISSN: 232-9939 Simulation and Analysis of AC-AC Converter With Improved Power Quality Srujal R. Patel, 2 Md Aftab Alam, 3 Nigam K. Prajapati M.Tech Scholar, 2 Assistant professor,

More information

Control of a Three Phase Induction Motor using Single Phase Supply

Control of a Three Phase Induction Motor using Single Phase Supply Control of a Three Phase Induction Motor using Single Phase Supply G. R. Sreehitha #1, A. Krishna Teja *2, Kondenti. P. Prasad Rao #3 Department of Electrical & Electronics Engineering, K L University,

More information

Design a Phase Interleaving PFC Buck Boost Converter to Improve the Power Factor

Design a Phase Interleaving PFC Buck Boost Converter to Improve the Power Factor International Journal of Innovation and Scientific Research ISSN 2351-8014 Vol. 11 No. 2 Nov. 2014, pp. 445-449 2014 Innovative Space of Scientific Research Journals http://www.ijisr.issr-journals.org/

More information

Power Efficient Motor Driver - VFD

Power Efficient Motor Driver - VFD International Journal of Engineering and Technical Research (IJETR) ISSN: 2321-0869, Volume-1, Issue-10, December 2013 Power Efficient Motor Driver - VFD Durgesh Choudhary Abstract VFD is known as the

More information

Variable Frequency Drives - a Comparison of VSI versus LCI Systems

Variable Frequency Drives - a Comparison of VSI versus LCI Systems Variable Frequency Drives - a Comparison of VSI versus LCI Systems Introduction TMEIC is a leader in the innovative design and manufacture of large ac variable f requency drive systems. TMEIC has been

More information

SPEED CONTROL OF INDUCTION MACHINE WITH REDUCTION IN TORQUE RIPPLE USING ROBUST SPACE-VECTOR MODULATION DTC SCHEME

SPEED CONTROL OF INDUCTION MACHINE WITH REDUCTION IN TORQUE RIPPLE USING ROBUST SPACE-VECTOR MODULATION DTC SCHEME International Journal of Advanced Research in Engineering and Technology (IJARET) Volume 7, Issue 2, March-April 2016, pp. 78 90, Article ID: IJARET_07_02_008 Available online at http://www.iaeme.com/ijaret/issues.asp?jtype=ijaret&vtype=7&itype=2

More information

Product Data Bulletin

Product Data Bulletin Product Data Bulletin Power System Harmonics Causes and Effects of Variable Frequency Drives Relative to the IEEE 519-1992 Standard Raleigh, NC, U.S.A. INTRODUCTION This document describes power system

More information

Simulation and Analysis of Parameter Identification Techniques for Induction Motor Drive

Simulation and Analysis of Parameter Identification Techniques for Induction Motor Drive International Journal of Electronic and Electrical Engineering. ISSN 0974-2174 Volume 7, Number 10 (2014), pp. 1027-1035 International Research Publication House http://www.irphouse.com Simulation and

More information

Transformerless UPS systems and the 9900 By: John Steele, EIT Engineering Manager

Transformerless UPS systems and the 9900 By: John Steele, EIT Engineering Manager Transformerless UPS systems and the 9900 By: John Steele, EIT Engineering Manager Introduction There is a growing trend in the UPS industry to create a highly efficient, more lightweight and smaller UPS

More information

Transient analysis of integrated solar/diesel hybrid power system using MATLAB Simulink

Transient analysis of integrated solar/diesel hybrid power system using MATLAB Simulink Transient analysis of integrated solar/diesel hybrid power system using ATLAB Simulink Takyin Taky Chan School of Electrical Engineering Victoria University PO Box 14428 C, elbourne 81, Australia. Taky.Chan@vu.edu.au

More information

Multipulse Converter for Analysing Total Harmonics Distortion and Its Mitigation

Multipulse Converter for Analysing Total Harmonics Distortion and Its Mitigation International Journal of Engineering and Technical Research (IJETR) ISSN: 2321-0869, Volume-2, Issue-7, July 2014 Multipulse Converter for Analysing Total Harmonics Distortion and Its Mitigation Sonika.Raghuvanshi

More information

MULTI-LEVEL INVERTER WITH DC LINK SWITCHES FOR RENEWABLE ENERGY SOURCES

MULTI-LEVEL INVERTER WITH DC LINK SWITCHES FOR RENEWABLE ENERGY SOURCES VOL., NO. 8, OCTOBER 25 ISSN 89-668 26-25 Asian Research Publishing Network (ARPN). All rights reserved. MULTI-LEVEL INVERTER WITH DC LINK SWITCHES FOR RENEWABLE ENERGY SOURCES Sangari A., Umamaheswari

More information

MODELLING AND SIMULATION OF SVPWM INVERTER FED PERMANENT MAGNET BRUSHLESS DC MOTOR DRIVE

MODELLING AND SIMULATION OF SVPWM INVERTER FED PERMANENT MAGNET BRUSHLESS DC MOTOR DRIVE MODELLING AND SIMULATION OF SVPWM INVERTER FED PERMANENT MAGNET BRUSHLESS DC MOTOR DRIVE Devisree Sasi 1, Jisha Kuruvilla P Final Year M.Tech, Dept. of EEE, Mar Athanasius College of Engineering, Kothamangalam,

More information

Functions, variations and application areas of magnetic components

Functions, variations and application areas of magnetic components Westring 18 3314 Büren Germany T +49 951 60 01 0 F +49 951 60 01 3 www.schaffner.com energy efficiency and reliability 1.1 Transformers The transformer is one of the traditional components of electrical

More information

Closed Loop Controlled AC-AC Converter for Induction Heating By Mr. D. Kirubakaran & Dr. S. Rama Reddy

Closed Loop Controlled AC-AC Converter for Induction Heating By Mr. D. Kirubakaran & Dr. S. Rama Reddy Volume 25, Number 2 - April 2009 through June 2009 Closed Loop Controlled AC-AC Converter for Induction Heating By Mr. D. Kirubakaran & Dr. S. Rama Reddy Peer-Refereed Article Applied Papers Keyword Search

More information

Survey of Harmonics Measurements in Electrical Distribution Systems

Survey of Harmonics Measurements in Electrical Distribution Systems Survey of Harmonics Measurements in Electrical Distribution Systems Leon M. Tolbert, Member, IEEE Oak Ridge National Laboratory* P.O. Box 28, Bldg Oak Ridge, TN 3783-6334 Alexandria, VA 2235-3862 Phone:

More information

Harmonic Design Considerations

Harmonic Design Considerations Harmonic Design Considerations Michael Leporace Specification Engineer, GE Consumer & Industrial ABSTRACT Power quality can be defined as the comparison of voltage and current waveforms to their fundamental

More information

DIRECT torque control (DTC) of induction motors has

DIRECT torque control (DTC) of induction motors has 76 IEEE POWER ELECTRONICS LETTERS, VOL. 3, NO. 2, JUNE 2005 Constant and High Switching Frequency Torque Controller DTC Drives C. L. Toh, N. R. N. Idris, Senior Member, IEEE, and A. H. M. Yatim, Senior

More information

APPLICATION NOTE. Fluorescent Ballast Design Using Passive P.F.C. and Crest Factor Control AN998

APPLICATION NOTE. Fluorescent Ballast Design Using Passive P.F.C. and Crest Factor Control AN998 APPLICATION NOTE International Rectifier 233 Kansas Street El Segundo CA 90245 USA AN998 Fluorescent Ballast Design Using Passive P.F.C. and Crest Factor Control by Peter N. Wood I. INTRODUCTION Power

More information

Modulation Strategies For Three Phase Inverters Supplying Unbalanced Three Phase Loads

Modulation Strategies For Three Phase Inverters Supplying Unbalanced Three Phase Loads ISSN (Online) : 9-875 ISSN (Print) : 47-67 International Journal of Innovative Research in Science, Engineering and Technology Volume, Special Issue, March 4 4 International Conference on Innovations in

More information

Design of Four Input Buck-Boost DC-DC Converter for Renewable Energy Application

Design of Four Input Buck-Boost DC-DC Converter for Renewable Energy Application Design of Four Input Buck-Boost DC-DC Converter for Renewable Energy Application A.Thiyagarajan Assistant Professor, Department of Electrical and Electronics Engineering Karpagam Institute of Technology

More information

Welcome to this training module which looks at the hardware construction of an AC drive.

Welcome to this training module which looks at the hardware construction of an AC drive. Welcome to this training module which looks at the hardware construction of an AC drive. 1 After completing this module, you will be able to: List the main parts of an AC drive (frequency converter) and

More information

DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEE QUESTION BANK EE 6503 POWER ELECTRONICS. III Yr/ V SEM UNIT-I POWER SEMI-CONDUCTOR DEVICES PART A

DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEE QUESTION BANK EE 6503 POWER ELECTRONICS. III Yr/ V SEM UNIT-I POWER SEMI-CONDUCTOR DEVICES PART A DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEE ING QUESTION BANK EE 6503 POWER ELECTRONICS III Yr/ V SEM UNIT-I POWER SEMI-CONDUCTOR DEVICES PART A 1. Define Holding and Latching current in SCR BTL 1

More information

Simulation of VSI-Fed Variable Speed Drive Using PI-Fuzzy based SVM-DTC Technique

Simulation of VSI-Fed Variable Speed Drive Using PI-Fuzzy based SVM-DTC Technique Simulation of VSI-Fed Variable Speed Drive Using PI-Fuzzy based SVM-DTC Technique B.Hemanth Kumar 1, Dr.G.V.Marutheshwar 2 PG Student,EEE S.V. College of Engineering Tirupati Senior Professor,EEE dept.

More information

Rotating Machinery Diagnostics & Instrumentation Solutions for Maintenance That Matters www.mbesi.com

Rotating Machinery Diagnostics & Instrumentation Solutions for Maintenance That Matters www.mbesi.com 13 Aberdeen Way Elgin, SC 29045 Cell (803) 427-0791 VFD Fundamentals & Troubleshooting 19-Feb-2010 By: Timothy S. Irwin, P.E. Sr. Engineer tsi@mbesi.com Rotating Machinery Diagnostics & Instrumentation

More information

ANADOLU UNIVERSITY DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING

ANADOLU UNIVERSITY DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING ANADOLU UNIVERSITY DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING EEM 102 INTRODUCTION TO ELECTRICAL ENGINEERING EXPERIMENT 9: DIODES AND DC POWER SUPPLY OBJECTIVE: To observe how a diode functions

More information

Microcontroller based PWM Inverter for Speed Control of a Three Phase Induction Motor

Microcontroller based PWM Inverter for Speed Control of a Three Phase Induction Motor Microcontroller based PWM Inverter for Speed Control of a Three Phase Induction Motor M. A. Latif, M. J. Alam, M. A. Rashid*, A. Karim, N. H. Ramly, I. Daut Dhaka Water Supply Authority (WASA), Dhaka,

More information

Switch Mode Power Supply Topologies

Switch Mode Power Supply Topologies Switch Mode Power Supply Topologies The Buck Converter 2008 Microchip Technology Incorporated. All Rights Reserved. WebSeminar Title Slide 1 Welcome to this Web seminar on Switch Mode Power Supply Topologies.

More information

Renewable Energy Applications: Photovoltaic and Wind Energy Conversion Systems (WECS)

Renewable Energy Applications: Photovoltaic and Wind Energy Conversion Systems (WECS) Renewable Energy Applications: Photovoltaic and Wind Energy Conversion Systems (WECS) Josep Pou Antoni Arias Page 1 Outline 1. Renewable Energy Perspectives 2. Solar Photovoltaic (PV) 3. Wind Generation

More information

Design and Implementation of 12V/24V Closed loop Boost Converter for Solar Powered LED Lighting System

Design and Implementation of 12V/24V Closed loop Boost Converter for Solar Powered LED Lighting System Design and Implementation of 12V/24V Closed loop Boost Converter for Solar Powered LED Lighting System P.Sathya 1, Dr.R.Natarajan 2 1 Assistant Professor, School of Electronics Engineering, VIT University,

More information

The Class-D Amplifier

The Class-D Amplifier The Class-D Amplifier (From the book Introduction to Electroacoustics and Audio Amplifier Design, Second Edition - Revised Printing, by W. Marshall Leach, Jr., published by Kendall/Hunt, c 2001.) A class-d

More information

Parametric variation analysis of CUK converter for constant voltage applications

Parametric variation analysis of CUK converter for constant voltage applications ISSN (Print) : 232 3765 (An ISO 3297: 27 Certified Organization) Vol. 3, Issue 2, February 214 Parametric variation analysis of CUK converter for constant voltage applications Rheesabh Dwivedi 1, Vinay

More information

Experiment # (4) AM Demodulator

Experiment # (4) AM Demodulator Islamic University of Gaza Faculty of Engineering Electrical Department Experiment # (4) AM Demodulator Communications Engineering I (Lab.) Prepared by: Eng. Omar A. Qarmout Eng. Mohammed K. Abu Foul Experiment

More information

PSE 6031 SYLLABUS (Tentative)

PSE 6031 SYLLABUS (Tentative) PSE 6031 SYLLABUS (Tentative) Power Electronics (3 credits) Friday Afternoon: 1:00-3:00 PM 15 Virtual Class Meetings (no face-face meetings) Pre-requisites: All coursework to qualify for the upper division

More information

WHITE PAPER. DC Motors Explained. DC Motors Explained: White Paper, Title Page

WHITE PAPER. DC Motors Explained. DC Motors Explained: White Paper, Title Page DC Motors Explained: White Paper, Title Page DC Motors Explained By Joe Kimbrell, Product Manager, Drives, Motors & Motion, AutomationDirect DC Motors Explained: White Paper, pg. 2 How many types of DC

More information

Harmonic Mitigation, Power Factor Correction & Energy Saving with Proper Transformer & Phase Shifting Techniques

Harmonic Mitigation, Power Factor Correction & Energy Saving with Proper Transformer & Phase Shifting Techniques Harmonic Mitigation, Power Factor Correction & Energy Saving with Proper Transformer & Phase Shifting Techniques Abstract Harmonics in electrical distribution systems are created from a number of sources

More information

DC Voltage Regulation by Buck Converter Applicable for Stand Alone Micro Hydro Power Generation

DC Voltage Regulation by Buck Converter Applicable for Stand Alone Micro Hydro Power Generation International Journal of Electronic and Electrical Engineering. ISSN 0974-2174, Volume 7, Number 1 (2014), pp. 37-42 International Research Publication House http://www.irphouse.com DC Voltage Regulation

More information

ELEC 435 ELECTRONICS I. Rectifier Circuits

ELEC 435 ELECTRONICS I. Rectifier Circuits ELEC 435 ELECTRONICS I Rectifier Circuits Common types of Transformers The Rectifier Rectification is the conversion of an alternating current to a pulsating direct current. Rectification occurs in both

More information

VFD Fundamentals. Variable Frequency Drive Fundamentals. AC Motor Speed - The speed of an AC induction motor depends upon two factors:

VFD Fundamentals. Variable Frequency Drive Fundamentals. AC Motor Speed - The speed of an AC induction motor depends upon two factors: VFD1 VFD Fundamentals opyright 2003 Kilowatt lassroom, LL. Drive Fundamentals Motor Speed - The speed of an induction motor depends upon two factors: 1) The number of motor poles 2) The frequency of the

More information

Power Flow Control Using Bidirectional Dc/Dc Converter for Grid Connected Photovoltaic Power System

Power Flow Control Using Bidirectional Dc/Dc Converter for Grid Connected Photovoltaic Power System International Journal of Innovative Research in Electronics and Communications (IJIREC) Volume 1, Issue 8, November 2014, PP 13-24 ISSN 2349-4042 (Print) & ISSN 2349-4050 (Online) www.arcjournals.org Power

More information

Lecture 9: Limiting and Clamping Diode Circuits. Voltage Doubler. Special Diode Types.

Lecture 9: Limiting and Clamping Diode Circuits. Voltage Doubler. Special Diode Types. Whites, EE 320 Lecture 9 Page 1 of 8 Lecture 9: Limiting and Clamping Diode Circuits. Voltage Doubler. Special Diode Types. We ll finish up our discussion of diodes in this lecture by consider a few more

More information

UNDERSTANDING POWER FACTOR AND INPUT CURRENT HARMONICS IN SWITCHED MODE POWER SUPPLIES

UNDERSTANDING POWER FACTOR AND INPUT CURRENT HARMONICS IN SWITCHED MODE POWER SUPPLIES UNDERSTANDING POWER FACTOR AND INPUT CURRENT HARMONICS IN SWITCHED MODE POWER SUPPLIES WHITE PAPER: TW0062 36 Newburgh Road Hackettstown, NJ 07840 Feb 2009 Alan Gobbi About the Author Alan Gobbi Alan Gobbi

More information

Design of Solar Power Optimizer And Eliminating Leakage Current In Multi-Level Inverter For PV Systems

Design of Solar Power Optimizer And Eliminating Leakage Current In Multi-Level Inverter For PV Systems Design of Solar Power Optimizer And Eliminating Leakage Current In Multi-Level Inverter For PV Systems A. Asaph 1, Dr. P. Selvan 2 1 PG Scholar, 2 Head of the Department, Erode Sengunthar Engineering College,

More information

Modeling and Analysis of DC Link Bus Capacitor and Inductor Heating Effect on AC Drives (Part I)

Modeling and Analysis of DC Link Bus Capacitor and Inductor Heating Effect on AC Drives (Part I) 00-00-//$0.00 (c) IEEE IEEE Industry Application Society Annual Meeting New Orleans, Louisiana, October -, Modeling and Analysis of DC Link Bus Capacitor and Inductor Heating Effect on AC Drives (Part

More information

Mathematical Modeling and Dynamic Simulation of a Class of Drive Systems with Permanent Magnet Synchronous Motors

Mathematical Modeling and Dynamic Simulation of a Class of Drive Systems with Permanent Magnet Synchronous Motors Applied and Computational Mechanics 3 (2009) 331 338 Mathematical Modeling and Dynamic Simulation of a Class of Drive Systems with Permanent Magnet Synchronous Motors M. Mikhov a, a Faculty of Automatics,

More information

Module Voltage Balancing Algorithm for Phase Shifted SPWM Controlled Cascaded Multilevel Inverter

Module Voltage Balancing Algorithm for Phase Shifted SPWM Controlled Cascaded Multilevel Inverter International Journal of Computer Sciences and Engineering Open Access Research Paper Volume4, Special Issue2, April 2016 EISSN: 23472693 Module Voltage Balancing Algorithm for Phase Shifted SPWM Controlled

More information

LOW COST, HIGH EFFICIENT SPWM CONTROLLER FOR PHOTOVOLTAIC INVERTER

LOW COST, HIGH EFFICIENT SPWM CONTROLLER FOR PHOTOVOLTAIC INVERTER 2012 International Conference on Clean and Green Energy IPCBEE vol.27 (2012) (2012) IACSIT Press, Singapore LOW COST, HIGH EFFICIENT S CONTROLLER FOR PHOTOVOLTAIC INVERTER Aswinkarthik R V 1+, Vivekshankar

More information

Understanding Variable Frequency Drives and Appropriate Applications

Understanding Variable Frequency Drives and Appropriate Applications Understanding Variable Frequency Drives and Appropriate Applications Steve Bruno Product Marketing Manager Oil Injected Screw Compressors 30kW -90kW Atlas Copco Compressors LLC steve.bruno@us.atlascopco.com

More information

Chapter 4 AC to AC Converters ( AC Controllers and Frequency Converters )

Chapter 4 AC to AC Converters ( AC Controllers and Frequency Converters ) Chapter 4 AC to AC Converters ( AC Controllers and Frequency Converters ) Classification of AC to AC converters Same frequency variable magnitude AC power AC controllers AC power Frequency converters (Cycloconverters)

More information

Novel Loaded-Resonant Converter & Application of DC-to-DC Energy Conversions systems

Novel Loaded-Resonant Converter & Application of DC-to-DC Energy Conversions systems International Refereed Journal of Engineering and Science (IRJES) ISSN (Online) 2319-183X, (Print) 2319-1821 Volume 2, Issue 11 (November 2013), PP.50-57 Novel Loaded-Resonant Converter & Application of

More information

Submarine Cable Power Transmission using DC High-Voltage Three-Level Converters

Submarine Cable Power Transmission using DC High-Voltage Three-Level Converters Submarine Cable Power Transmission using DC High-Voltage Three-Level Converters João Antunes, IST (jlantunes@gmail.com) Astract This paper is about multilevel converters used in High Voltage Direct Current

More information

Rectifier: It is a circuit which employs one or more diodes to convert ac voltage into pulsating dc voltage. We will consider the following circuits:

Rectifier: It is a circuit which employs one or more diodes to convert ac voltage into pulsating dc voltage. We will consider the following circuits: Rectifier: It is a circuit which employs one or more diodes to convert ac voltage into pulsating dc voltage. We will consider the following circuits: (i) Half wave rectifier. (ii) Full wave rectifier.

More information

MODELING AND SIMULATION OF A THREE-PHASE INVERTER WITH RECTIFIER-TYPE NONLINEAR LOADS

MODELING AND SIMULATION OF A THREE-PHASE INVERTER WITH RECTIFIER-TYPE NONLINEAR LOADS , pp. 7-1 MODELING AND SIMULAION OF A HREE-PHASE INERER WIH RECIFIER-YPE NONLINEAR LOADS Jawad Faiz 1 and Ghazanfar Shahgholian 2 1 School of Electrical and Computer Engineering, Faculty of Engineering,

More information

Speed Control Methods of Various Types of Speed Control Motors. Kazuya SHIRAHATA

Speed Control Methods of Various Types of Speed Control Motors. Kazuya SHIRAHATA Speed Control Methods of Various Types of Speed Control Motors Kazuya SHIRAHATA Oriental Motor Co., Ltd. offers a wide variety of speed control motors. Our speed control motor packages include the motor,

More information

HIGH FREQUENCY TRANSFORMER WITH TRANSFORMER SWITCHOVER

HIGH FREQUENCY TRANSFORMER WITH TRANSFORMER SWITCHOVER OPTIMUM EFFICIENCY AND FLEXIBLE USE HIGH FREQUENCY TRANSFORMER WITH TRANSFORMER SWITCHOVER One of the many requirements of the modern inverter is a broad, coordinated input and MPP voltage range with a

More information

Induction Generator Power Conversion and Control

Induction Generator Power Conversion and Control Steven Englebretson, Dr. James L. Kirtley, Jr. Induction Generator Power Conversion and Control ABSTRACT High speed induction generators could operate as an effective primary or reserve source of electric

More information

Neutral Point Potential Balance of Three Phase Three Level Diode Clamped Inverter

Neutral Point Potential Balance of Three Phase Three Level Diode Clamped Inverter Neutral Point Potential Balance of Three Phase Three Level Diode Clamped Inverter BALAMURUGAN M GNANA PRAKASH M Dr.UMASHANKAR S School of Electrical Engineering School of Electrical Engineering School

More information

Reduction of DC Bus Capacitor Ripple Current with PAM/PWM Converter

Reduction of DC Bus Capacitor Ripple Current with PAM/PWM Converter Reduction of DC Bus Capacitor Ripple Current with PAM/PWM Converter Frederick D. Kieferndorf, Matthias Förster and Thomas A. Lipo University of Wisconsin-Madison Dept. of Electrical and Computer Engineering

More information

LOW COST MOTOR PROTECTION FILTERS FOR PWM DRIVE APPLICATIONS STOPS MOTOR DAMAGE

LOW COST MOTOR PROTECTION FILTERS FOR PWM DRIVE APPLICATIONS STOPS MOTOR DAMAGE LOW COST MOTOR PROTECTION FILTERS FOR PWM DRIVE APPLICATIONS STOPS MOTOR DAMAGE Karl M. Hink, Executive Vice President Originally presented at the Power Quality 99 Conference ABSTRACT Motor protection

More information

Homework Assignment 03

Homework Assignment 03 Question 1 (2 points each unless noted otherwise) Homework Assignment 03 1. A 9-V dc power supply generates 10 W in a resistor. What peak-to-peak amplitude should an ac source have to generate the same

More information

SIMULATION AND ASSESSMENT OF SINGLE PHASE SEMI-Z-SOURCE INVERTER (S-ZSI)

SIMULATION AND ASSESSMENT OF SINGLE PHASE SEMI-Z-SOURCE INVERTER (S-ZSI) International Journal of Electrical Engineering & Technology (IJEET) Volume 7, Issue 1, Jan-Feb, 2016, pp.30-34, Article ID: IJEET_07_01_003 Available online at http:// http://www.iaeme.com/ijeet/issues.asp?jtype=ijeet&vtype=7&itype=1

More information

Fuzzy Adaptive PI Controller for Direct Torque Control Algorithm Based Permanent Magnet Synchronous Motor

Fuzzy Adaptive PI Controller for Direct Torque Control Algorithm Based Permanent Magnet Synchronous Motor Website: www.ijetae.com (ISSN 225-2459, ISO 91:28 Certified Journal, Volume 3, Issue 5, May 213) Adaptive PI Controller for Direct Torque Control Algorithm Based Permanent Magnet Synchronous Motor R.Senthil

More information

Precision Diode Rectifiers

Precision Diode Rectifiers by Kenneth A. Kuhn March 21, 2013 Precision half-wave rectifiers An operational amplifier can be used to linearize a non-linear function such as the transfer function of a semiconductor diode. The classic

More information

CONVENTIONALLY reduced order models are being

CONVENTIONALLY reduced order models are being Co-Simulation of an Electric Traction Drive Christoph Schulte and Joachim Böcker Abstract For the simulation of electrical drives, reducedorder models or simple look-up tables are often used in order to

More information