Gergely György BALÁZS. Controlling of Four-Quadrant Converters Especially in Electric Vehicles
|
|
- Patrick Carpenter
- 8 years ago
- Views:
Transcription
1 Budapest University of Technology and Economics Faculty of Electrical Engineering and Informatics Department of Electric Power Engineering Gergely György BALÁZS Controlling of Four-Quadrant Converters Especially in Electric Vehicles Ph.D Thesis Booklet Supervisor: Dr. István SCHMIDT Department of Electric Power Engineering Budapest, 2012
2 Introduction, objectives The electrical energy is the most valuable and the most versatilely used energy source in our technically developed World. The energy reverses of the Earth are getting exhausted, therefore the utilization of the energy efficiency and environmentally friendly alternative energy sources are an important role in order to make the valuable electrical energy available with sufficient quantity and quality. Therefore each research and rationalization purpose becomes important. Several disturbing consumers are connected to the alternating voltage networks. These non-linear consumers inject harmonic current into the network, consequently the ideal sinusoidal waveform of the AC network becomes strongly distorted. Therefore each solution should be explored that can reduce the undesired effects of the distorted network. The adequate control of switching mode converters can be one of the solutions to solve this issue. The doctoral dissertation focuses on issues which can arise in vehicular applications. The first objective of the dissertation was, to define a simulation framework that enables studying the harmonic penetration of grid-connected active rectifiers and the interaction between the non-linear loads and the active rectifiers with fast simulation methods. Another objective of the dissertation was to create a new control strategy for active rectifiers that enables us to reduce the harmful effects of the network distortion and compare it with other widely used strategies. Research methodology Simulation studies: The double domain simulation method was used for examining the harmonic penetration of the active rectifiers. This method is a link between the frequency- and time domain models. Those parts of the system are calculated in the frequency domain, that parameters are given in the frequency domain. On the other hand the time variant parts of the model that can be characterized by differential equations - are implemented in time domain. Therefore the parts of the AC network are calculated in frequency domain with frequency-dependent parameters, while the grid-connected converters and drive systems are implemented in time domain. I created a flexible, modular model for the time domain part of the double domain simulation. I modelled DC-link frequency converters equipped with single- or three-phase grid connected line-side converter, and the line- and motor-side converters are voltage-source inverters. Moreover I created squirrel cage induction machine and permanent magnet synchronous motor models. The implemented parts and these connections are shown in Fig.1. The frequency converter and the motor models were built based on the characterized differential equations in per-unit quantities. To reduce the simulation time I made simplifications. The whole drive system was modelled with linear differential equations with constant coefficients. The three-phase quantities were considered by Park vectors. 2
3 Fig.1: Modular drive system models Tests and measurements: In my opinion the value of a doctoral dissertation is enhanced if the results of the research is presented not only with analytical or simulation methods but also with experimental results in a realized system. Therefore a single-phase test system was created to examine the new methods, its core is a four-quadrant bridge-type converter. A board was built for the converter control. The test system enables to examine the new method of the second thesis and to compare it with other widely used current control strategies. In real conditions I analysed the improvement of the power quality if a grid-connected converter is operated by the new current control strategy. Analytical studies: I performed analytical studies to compare the current control strategies of the grid-connected converters. The consumed currents of the converter were compared while it was operated by different current control strategies. Despite the complicated mathematical derivation, I strived to receive simple results. In my opinion the detailed derivation and the short logical steps help the understanding. The definition of the total voltage harmonic distortion and the effective value were used in the derivation. Initially, it was assumed that the consumed AC power mean values of the grid-connected converters in each current strategy are equal. I studied analytically the fundamental and root mean square (RMS) currents of the strategies. The derivation was detailed by assuming single-phase grid-connected converter operating in rectifier mode. Moreover the same results can be received if the converter is operating in inverter mode or if three-phase network connected converter is assumed. Finally I received expressive coefficients, depending only on the total harmonic distortion of the AC network. 3
4 New scientific results First thesis In this thesis a simulation method is described that enables to examine DC-link, fourquadrant, bridge-type network-friendly AC grid connected converters. I created a more reliable model for the time-domain simulation part of the double-domain simulation. The subthesis is studying simplification methods to reduce the simulation time. Thesis 1: For double domain simulation methods, I created a modular time domain model of squirrel cage induction machine and permanent magnet synchronous machine fed by a modern frequency converter. The model is implemented with per unit quantities and differential equations. The model enables us to examine the harmonic penetration of network-friendly locomotives and photovoltaic inverters (PVs) - based on the similarity of the line-side converter. Sub-thesis 1.1: I proved with simulation results that the motor-side converter and the motor can be considered as a current generator for the harmonic penetration of the DC-link frequency converters. Publications connected to this thesis: [S2]-[S16] Second thesis The thesis is dealing with a new current control strategy, can be applied for grid-connected inverters operating in inverter mode. Simulation and measured results are presented the beneficial effects of the method. The sub-theses detail the practical applications and the limits of the new method. Thesis 2: I created a new current control strategy for network-friendly line-side converter operating in inverter mode and connected to harmonic distorted grid. According to the principle, at inverter mode the generated fundamental current of the converter connected to single-phase grid is in antiphase with the grid voltage fundamental and proportional to it while the harmonics of the generated current are in phase with the harmonics of the grid voltage, and proportional to them. If the converter is connected to three-phase grid, at inverter mode the generated fundamental current vector is opposite with the grid voltage fundamental vector and proportional to it, while the harmonic vectors of the generated current are in direction with the harmonics of the grid voltage and proportional to them. Therefore the system behaves as a fundamental generator and harmonic consumer. The proportionality factors of the fundamental and harmonic currents are the same. In singlephase case, I proved with measurements and simulation results that the voltage distortion can be reduced with the new strategy. Sub-thesis 2.1: I worked out, how the principle can be applied in grid-connected converters equipped with current controller and pulse width modulation (PWM) controller. In singlephase case the voltage waveform of the converter AC terminals (u h ) are measured by voltage sensors, then its fundamental (u h1 ) is computed by a fundamental former device, after it the difference of the two signals is developed ( u h =u h -u h1 ), finally the defined signal is subtracted from the fundamental signal (u h1 - u h ). This signal should feed the waveform determining input of the current reference signal former of the converter. If the converter is connected to a 4
5 three-phase network, the subtracted signal (u h1 - u h ) should be defined in each phase of the converter, similarly to the single-phase case. Sub-thesis 2.2.: I determined that if the new principle is applied in line-side converter of high-power drive systems equipped with switching elements enabling low switching frequency, it is worth filtering the high frequency harmonics of the grid voltage because the PWM voltage source inverter is not able to follow the high frequency component of the control signal. It is worth to perform the filtering at the waveform determining input of the current reference generator. Publications connected to this thesis: [S1], [S4]-[S7] Third thesis This thesis is dealing with the comparison of different current control strategies. Three methods are compared, two are widely-used and the third is the new strategy described in Thesis 2. This thesis defines coefficients that depend only on the total harmonic distortion of the AC voltage network. The coefficients enable to compare the RMS and fundamental currents of the strategies. The sub-thesis gives an advice which strategy should be applied in rectifier and in inverter mode of the four-quadrant converter. The sub-thesis details how the strategy switch should be implemented. Thesis 3: I defined coefficients to compare three control strategies for grid-connected network-friendly converters. The first enforces current proportional to the grid voltage waveform, the second enforces current proportional to the grid voltage waveform fundamental and the third is the new strategy described in Thesis 2. These coefficients compare the RMS and fundamental currents of the different strategies and depending only on the total harmonic distortion of the network and dependent form the load. Sub-thesis 3.1: I determined that it is worth applying different current control strategies for four-quadrant bridge-type line-side converters in inverter and in rectifier mode. The switching between the strategies can be performed by the sign of the DC voltage controller output or by the direction of the current mean value that flows in the DC-link. Publications connected to this thesis: [S1], [S4], [S7], [S8], [S11], [S14], [S16] Practical applications of the theses Harmonic penetration of network-friendly converters can be analysed by the models and simulation environment that were described in the first thesis. In the dissertation two practical applications were presented: locomotives equipped with active rectifier and PV inverters. The simulation environment gives an opportunity to study the harmonic penetration of other DClink frequency converters, e.g. the harmonic penetration of renewable resources power plants. In the future I would like to examine the filter circuits of PV inverters by using the built simulation environment. It is worth to apply the new principle that was presented in Thesis 2 for distorted network connected converters, in applications where there is no opportunity to measure the grid current, just the AC-side current of the converter. This current control strategy can be utilized in many applications, e.g.: 5
6 - AC voltage network connected network-friendly locomotives, - to produce the DC-link voltage for applications that is connected to a common DClink (e.g. for drive systems of robots, cranes, splitting-mills, etc.), - renewable resources drive systems, e.g. in line-side converters of domestic power plants, - line-side converters of DC voltage energy distribution systems. If the line-side converter possess network-friendly behaviour, equipped with semiconductor switching elements and has an AC voltage sensor, the new current control strategy can be easily applied by modifying the analogue or digital control circuit. For four quadrant line-side converters it is worth to implement a switching device that was described in Sub-thesis 3.1. Therefore the distortion of the grid can be effectively reduced if in rectifier mode the converter is operated with a current reference signal proportional to the grid voltage, while in inverter mode the new strategy of Thesis 2 is applied. My own publications S1. Balázs Gergely György, Horváth Miklós, Schmidt István: Control Devices and Control Methods for Converter Devices. (in Hungarian) Case number: P , Submitted in Hungary, Hungarian patent, Submitted at: S2. G. Gy. Balázs, I. Schmidt, P. Kiss: Harmonic Penetration Analyses for DC-Link Frequency Converter Drive Systems by Considering the Motor-Side Converter as an Ideal Current Generator International Conference on Renewable Energies and Power Quality (ICREPQ 13). Bilbao, Spain, Paper 573. (Accepted for publication, each conference paper will be published in the Renewable Energy and Power Quality Journal (ISSN X)) S3. G. Gy. Balázs, P. Kiss: Effect on Power Quality of Numerous PV Inverters Connected to the Same LV Network in a Suburban Area International Conference on Renewable Energies and Power Quality (ICREPQ 13). Bilbao, Spain, Paper 477. (Accepted for publication, each conference paper will be published in the Renewable Energy and Power Quality Journal (ISSN X)) S4. Gergely György Balázs, Miklós Horváth, István Schmidt: New Current Control Method for Grid-Connected Inverter of Domestic Power Plant. EPE-PEMC th International Power Electronics and Motion Control Conference. Novi-Sad, Serbia, pp Paper 482. S5. G G Balázs, M. Horváth, I. Schmidt, P. Kiss: Examination of New Current Control Methods for Modern PWM Controlled AC Electric Locomotives. 6th IET Power Electronics, Machines and Drives Conference Bristol, UK, pp Paper c.2.4 (0276). (ISBN: ) 6
7 S6. G G Balázs, P Kiss, M Horváth, I Schmidt: Application of the Double Domain Simulation in Comparison of New Current Control Methods for PWM Controlled AC Electric Locomotives. 15th IEEE International Conference on Harmonics and Quality of Power. Hong Kong, China, pp Paper S7. Balázs Gergely György: New Current Control Strategies for Network-Friendly Locomotive Line-Side Converter: (in Hungarian) II. Mechwart András Ifjúsági Találkozó. Budapest, Hungary, pp (ISBN: ) S8. G Gy Balázs, I. Schmidt, M. Horváth: Analytical and Simulation Comparison of Sinusoidal and Resistive Modulation Strategies for Network-Friendly Three-Phase Grid-Connected Inverters. Periodica Polytechnica-Electrical Engineering 55: 11 p. (2011) S9. Balázs Gergely György: MFrom a Locomotive to a Racecar Electric Vehicle Projects (in Hungarian) I. Mechwart András Ifjúsági Találkozó. Budapest, Hungary S10. P. Kiss, G. Gy. Balázs, A. Dán, I. Schmidt: The Application of the Double Domain Simulation with PWM Controlled Locomotives: 14th IEEE International Conference on Harmonics and Quality of Power Bergamo, Italy, pp S11. G Gy Balázs, M. Horváth, I. Schmidt: Features of Sinusoidal and Resistive Current Loads in Harmonic Distorted Networks. EPE-PEMC' th International Power Electronics and Motion Control Conference Ohrid, Macedonia, pp Paper 205. S12. Balázs Gergely György: HExamination of Network-Friendly Rail Vehicle Drives. (in Hungarian) VIK60 - Erősáram a fiatalok szemével: Ünnepi konferencia a VIK 60 éves fennállása alkalmából. Budapest, Hungary, S13. Balázs G Gy, Horváth M, Schmidt I: Network pollution reduction by using single phase network friendly converters. (in Hungarian) Elektrotechnika 103:(3) pp (2010) S14. Balázs G Gy, Horváth M, Schmidt I: Comparison of Sinusoidal and Resistive Modulation Strategies for Single Phase Four Quadrant Converters. Electrotechnica Electronica Automatica 58:(3) pp (2010) S15. Balázs G Gy, Schmidt I: Network Friendly Operation of Alternating Voltage Fed Vehicles. (in Hungarian) Elektrotechnika 102:(1) pp (2009) S16. Balázs G Gy, Schmidt I, Horváth M: Control Methods of Alternating Voltage-Fed Vehicles' Modern Line-Side Converters 2nd International Youth Conference on Energetics. Budapest, Hungary, Budapest: pp Paper 447. (ISBN: ) 7
8 Publications not directly connected to the thesis: S17. dr Vincze Gyuláné, Balázs Gergely György: Electric Vehicles (in English and Hungarian) Nemzeti Fejlesztési Ügynökség, 132 pages S18. Gergely György Balázs, Zalán Kohári, Norbert Elek: Konzept einer elektrischen Fahrzeug mit Radnabenmotorantrieb. Audi Production Award Ingolstadt Germany, pp S19. Szentmiklóssy B, Balázs G Gy, Kerekes S: Ultracapacitors as a Primary Energy Storage Device in Public Transport. IYCE International Youth Conference on Energetics. Budapest, Hungary, (BME) Budapest: pp Paper 193. (ISBN: ) S20. Szentmiklóssy B, Balázs G Gy, Kerekes S: Trolley-bus without Overhead-Line. (in Hungarian) XII. Fiatal Műszakiak Tudományos Ülésszaka: FMTÜ Cluj, Romania, pp Paper 43. (ISBN: ; ) S21. Balázs G Gy, Szentmiklóssy B, Kerekes S: Examination of Ultracapacitor Behaviour: Measured and Simulation Results. (in Hungarian) XII. Fiatal Műszakiak Tudományos Ülésszaka: FMTÜ Cluj, Romania, pp Paper 8. (ISBN: ; ) S22. Balázs G Gy, Szentmiklóssy B, Kerekes S: Long Term and Direct Current Behaviour of the Ultracapacitor by Comparing Measured and Simulated Results. IYCE International Youth Conference on Energetics. Budapest, Hungary, (BME) Budapest: pp Paper 149. (ISBN: ) 8
Modeling Grid Connection for Solar and Wind Energy
1 Modeling Grid Connection for Solar and Wind Energy P. J. van Duijsen, Simulation Research, The Netherlands Frank Chen, Pitotech, Taiwan Abstract Modeling of grid connected converters for solar and wind
More informationModelling, 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 informationModeling 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 informationControl 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 informationHarmonics 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 informationPrinciples 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 informationELECTRICAL ENGINEERING
EE ELECTRICAL ENGINEERING See beginning of Section H for abbreviations, course numbers and coding. The * denotes labs which are held on alternate weeks. A minimum grade of C is required for all prerequisite
More informationAnais Volume 1 COBEP99 UFPR UFSM
COBEP99 UFPR UFSM 5 e Congresso Brasileiro de Eletronica de Potencia The 5~ Brazilian Power Electronics Conference Foz do Iguagu, Parana, Brasil 19 a 23 de setembro de 1999 Anais Volume 1 UB/TIB Hannover
More informationMathematical 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 informationSimulation 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 informationPower 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 informationParametric 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 informationControl Development and Modeling for Flexible DC Grids in Modelica
Control Development and Modeling for Flexible DC Grids in Modelica Andreas Olenmark 1 Jens Sloth 2 Anna Johnsson 3 Carl Wilhelmsson 3 Jörgen Svensson 4 1 One Nordic AB, Sweden, andreas.olenmark@one-nordic.se.
More informationMETHODOLOGICAL CONSIDERATIONS OF DRIVE SYSTEM SIMULATION, WHEN COUPLING FINITE ELEMENT MACHINE MODELS WITH THE CIRCUIT SIMULATOR MODELS OF CONVERTERS.
SEDM 24 June 16th - 18th, CPRI (Italy) METHODOLOGICL CONSIDERTIONS OF DRIVE SYSTEM SIMULTION, WHEN COUPLING FINITE ELEMENT MCHINE MODELS WITH THE CIRCUIT SIMULTOR MODELS OF CONVERTERS. Áron Szûcs BB Electrical
More informationClosed 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 informationFREQUENCY 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 informationFundamentals 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 informationReliable World Class Insights Your Silicon Valley Partner in Simulation ANSYS Sales, Consulting, Training & Support
www.ozeninc.com info@ozeninc.com (408) 732 4665 1210 E Arques Ave St 207 Sunnyvale, CA 94085 Reliable World Class Insights Your Silicon Valley Partner in Simulation ANSYS Sales, Consulting, Training &
More informationGrid Interconnection of Renewable Energy Sources Using Modified One-Cycle Control Technique
Grid Interconnection of Renewable Energy Sources Using Modified One-Cycle Control Technique NKV.Sai Sunil 1, K.Vinod Kumar 2 PG Student, GITAM University, Visakhapatnam, India. Asst.Professor, Department
More informationSmart Grid and Renewable Energy Grid Integration. Jian Sun, Professor and Director Department of ECSE & Center for Future Energy Systems
Smart Grid and Renewable Energy Grid Integration Jian Sun, Professor and Director Department of ECSE & Center for Future Energy Systems 1 How Smart Can We Make This Grid? 2 Smart Grid Drivers Need to Use
More informationSimulation 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 informationControl Strategies of the Doubly Fed Induction Machine for Wind Energy Generation Applications
Control Strategies of the Doubly Fed Induction Machine for Wind Energy Generation Applications AUTHORS Dr. Gonzalo Abad, The University of Mondragon, SPAIN. Dr. Miguel Ángel Rodríguez, Ingeteam Transmission
More informationMULTI-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 informationAnalysis, Calculation and Reduction of Shaft Voltage in Induction Generators
European Association for the Development of Renewable Energies, Environment and Power Quality International Conference on Renewable Energies and Power Quality (ICREPQ 09) alencia (Spain), 15th to 17th
More informationAnalysis 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 informationUSE OF ARNO CONVERTER AND MOTOR-GENERATOR SET TO CONVERT A SINGLE-PHASE AC SUPPLY TO A THREE-PHASE AC FOR CONTROLLING THE SPEED OF A THREE-PHASE INDUCTION MOTOR BY USING A THREE-PHASE TO THREE-PHASE CYCLOCONVERTER
International Journal of Electrical Engineering & Technology (IJEET) Volume 7, Issue 2, March-April, 2016, pp.19-28, Article ID: IJEET_07_02_003 Available online at http:// http://www.iaeme.com/ijeet/issues.asp?jtype=ijeet&vtype=7&itype=2
More informationINDUCTION MOTOR PERFORMANCE TESTING WITH AN INVERTER POWER SUPPLY, PART 2
INDUCTION MOTOR PERFORMANCE TESTING WITH AN INVERTER POWER SUPPLY, PART 2 By: R.C. Zowarka T.J. Hotz J.R. Uglum H.E. Jordan 13th Electromagnetic Launch Technology Symposium, Potsdam (Berlin), Germany,
More informationModified 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 informationAdvance Electronic Load Controller for Micro Hydro Power Plant
Journal of Energy and Power Engineering 8 (2014) 1802-1810 D DAVID PUBLISHING Advance Electronic Load Controller for Micro Hydro Power Plant Dipesh Shrestha, Ankit Babu Rajbanshi, Kushal Shrestha and Indraman
More informationSPEED 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 informationModeling 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 informationAN 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 informationEET272 Worksheet Week 9
EET272 Worksheet Week 9 answer questions 1-5 in preparation for discussion for the quiz on Monday. Finish the rest of the questions for discussion in class on Wednesday. Question 1 Questions AC s are becoming
More informationDesign 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 informationNew 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 informationDesign 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 informationMODELING 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 informationPower 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 informationAC 2011-953: INDUSTRY-DRIVEN POWER ENGINEERING CURRICU- LUM DEVELOPMENT IN ELECTRICAL AND COMPUTER ENGINEER- ING TECHNOLOGY PROGRAM
AC 2011-953: INDUSTRY-DRIVEN POWER ENGINEERING CURRICU- LUM DEVELOPMENT IN ELECTRICAL AND COMPUTER ENGINEER- ING TECHNOLOGY PROGRAM Aleksandr Sergeyev, Michigan Technological University Aleksandr Sergeyev
More informationPower System Harmonics
Pacific Gas and Electric Company Power System Harmonics What are power system harmonics? Ideally, voltage and current waveforms are perfect sinusoids. However, because of the increased popularity of electronic
More informationCONVENTIONALLY 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 informationPOWER 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 informationPOWER TRANSMISSION FROM OFFSHORE WIND FARMS
POWER TRNSMISSION FROM OFFSHORE WIND FRMS Thorsten Völker University of pplied Sciences Bremerhaven Germany BSTRCT The future for wind power generation in Germany is offshore wind energy. The preferred
More informationAnalysis 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 informationMICRO HYDRO POWER PLANT WITH INDUCTION GENERATOR SUPPLYING SINGLE PHASE LOADS
MICRO HYDRO POWER PLANT WITH INDUCTION GENERATOR SUPPLYING SINGLE PHASE LOADS C.P. ION 1 C. MARINESCU 1 Abstract: This paper presents a new method to supply single-phase loads using a three-phase induction
More informationNeutral Currents in Three Phase Wye Systems
POWER SYSTEMS ENGINEERING DATA PUBLISHED BY SQUARE D, OSHKOSH, WISCONSIN Subject: Neutral Currents in Three Phase Wye Systems by Robert Arthur Square D Company Oshkosh, Wisconsin (414) 46-80 and R. A.
More informationHarmonic components: electrical network polluters. LV and MV networks are becoming increasingly polluted by current and voltage harmonics. Harmonics a
Harmonics and transformers Harmonic component filter Harmonic components: electrical network polluters. LV and MV networks are becoming increasingly polluted by current and voltage harmonics. Harmonics
More informationHigh 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 informationTHE development of new methods and circuits for electrical energy conversion
FACTA UNIERSITATIS (NIŠ) SER.: ELEC. ENERG. vol. 22, no. 2, August 29, 245252 Investigation of ThreePhase to SinglePhase Matrix Converter Mihail Antchev and Georgi Kunov Abstract: A threephase to singlephase
More informationModulation 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 informationSurvey 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 informationPower Electronics. Prof. K. Gopakumar. Centre for Electronics Design and Technology. Indian Institute of Science, Bangalore.
Power Electronics Prof. K. Gopakumar Centre for Electronics Design and Technology Indian Institute of Science, Bangalore Lecture - 1 Electric Drive Today, we will start with the topic on industrial drive
More informationThree-port DC-DC Converters to Interface Renewable Energy Sources with Bi-directional Load and Energy Storage Ports
Three-port DC-DC Converters to Interface Renewable Energy Sources with Bi-directional Load and Energy Storage Ports A DISSERTATION SUBMITTED TO THE FACULTY OF THE GRADUATE SCHOOL OF THE UNIVERSITY OF MINNESOTA
More information2 Topology and Control Schemes
AC Motor Drive Fed by Renewable Energy Sources with PWM J. Pavalam 1 ; R. Ramesh Kumar 2 ; R. Mohanraj 3 ; K. Umadevi 4 1 PG Scholar, M.E-Power electronics and Drives Excel College of Engineering and Technology
More informationAnalysis of PV cell fed High Voltage Gain Seven and Nine level inverter with Reduced Switches
Analysis of PV cell fed High Voltage Gain Seven and Nine level inverter with Reduced Switches Ch.Vedasri P.G. Scholar, Department of Electrical & Electronics Engineering, Chirala Engineering College, Chirala;
More informationA bidirectional DC-DC converter for renewable energy systems
BULLETIN OF THE POLISH ACADEMY OF SCIENCES TECHNICAL SCIENCES Vol. 57, No. 4, 2009 A bidirectional DC-DC converter for renewable energy systems S. JALBRZYKOWSKI, and T. CITKO Faculty of Electrical Engineering,
More informationLOW 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 informationA Design of DC/DC Converter of Photovoltaic Generation System for Streetcars
Journal of International Council on Electrical Engineering Vol. 3, No. 2, pp.164~168, 2013 http://dx.doi.org/10.5370/jicee.2013.3.2.164 A Design of DC/DC Converter of Photovoltaic Generation System for
More informationDesign 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 informationRelationship between large subject matter areas
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER;
More informationDC/DC BUCK Converter for Renewable Energy Applications Mr.C..Rajeshkumar M.E Power Electronic and Drives,
DC/DC BUCK Converter for Renewable Energy Applications Mr.C..Rajeshkumar M.E Power Electronic and Drives, Mr.C.Anandaraj Assistant Professor -EEE Thiruvalluvar college of Engineering And technology, Ponnur
More informationWIND 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 informationDC 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 informationMODELLING 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 informationChapter 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 informationSingle-Stage High Power Factor Flyback for LED Lighting
Application Note Stockton Wu AN012 May 2014 Single-Stage High Power Factor Flyback for LED Lighting Abstract The application note illustrates how the single-stage high power factor flyback converter uses
More informationLOSSELESS STARTING METHOD FOR THE WOUND ROTOR INDUCTION MOTOR
LOSSELESS STARTING METHOD FOR THE WOUND ROTOR INDUCTION MOTOR Sergiu Ivanov Mihai Rdulescu University of Craiova, Romania INDA Craiova Faculty of Electrical Engineering 30, Mr#e#ti Street 107, Decebal
More informationINTERFACES FOR RENEWABLE ENERGY SOURCES WITH ELECTRIC POWER SYSTEMS
INTERFACES FOR RENEWABLE ENERGY SOURCES WITH ELECTRIC POWER SYSTEMS Paulo Ferreira, Manuel Trindade, Júlio S. Martins and João L. Afonso University of Minho, Braga, Portugal paulo.alves.ferreira@sapo.pt,
More informationEDUMECH Mechatronic Instructional Systems. Ball on Beam System
EDUMECH Mechatronic Instructional Systems Ball on Beam System Product of Shandor Motion Systems Written by Robert Hirsch Ph.D. 998-9 All Rights Reserved. 999 Shandor Motion Systems, Ball on Beam Instructional
More informationPower Quality Issues in Railway Electrification
International Journal of Computer Sciences and Engineering Open Access Survey Paper Volume-4, Issue-1 E-ISSN: 2347-2693 Power Quality Issues in Railway Electrification Rajshree S Thorat 1*, M. M. Deshpande
More informationPSE 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 informationCYCLOCONVERTERS. 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 informationA 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 informationIntroduction. Harmonics and IEEE 519 Page 1 of 19
Introduction In an ideal power system, the voltage supplied to customer equipment, and the resulting load current are perfect sine waves. In practice, however, conditions are never ideal, so these waveforms
More informationONR/NSF-Sponsored Faculty/Industry Workshop
ONR/NSF-Sponsored Faculty/Industry Workshop Reforming Power-Related Curriculum Power Electronics Presenter: Hariharan Krishnaswami Assistant Professor University of Texas at San Antonio New Electric Power
More informationCURRICULUM VITAE. 9. Academic Qualifications : Degree University Specialization Year. Jawaharlal Nehru Technological University, Hyderabad
CURRICULUM VITAE 1. Name of the Faculty : Dr. Satish Kumar Peddapelli 2. Father s Name : P. Shankar 3. Date of Birth : 28-10-1974 4. Designation : Assistant Professor 5. Department : Electrical Engineering
More informationDesign And Implementation Of Seven Level Inverter With Solar Energy Genration System
Ravula Sateesh,B.Venugopal Reddy 195 Design And Implementation Of Seven Level Inverter With Solar Energy Genration System RAVULA SATEESH 1 B.VENUGOPAL REDDY 2 EMAIL: r.sateeshsrinivas@gmail.com EMAIL:venugopal1729reddy@gmail.com
More informationAMZ-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 informationUnderstanding Delta Conversion Online "Power Regulation" - Part 2
Application Note #40 Understanding Delta Conversion Online "Power Regulation" - Part 2 Introduction This application note is the second in a series on delta conversion theory of operation. For complete
More information98% Efficient Single-Stage AC/DC Converter Topologies
16 POWER CONVERTERS www.teslaco.com 98% Efficient Single-Stage AC/DC Converter Topologies A new Hybrid Switching Method is introduced in this article which for the first time makes possible AC/DC power
More informationAn extended EMC study of an electrical powertrain for transportation systems
European Association for the Development of Renewable Energies, Environment and Power Quality (EA4EPQ) International Conference on Renewable Energies and Power Quality (ICREPQ 12) Santiago de Compostela
More informationA new DC micro-grid system using renewable energy and electric vehicles for smart energy delivery
Title A new DC micro-grid system using renewable energy and electric vehicles for smart energy delivery Author(s) Liu, C; Chau, KT; Diao, C; Zhong, J; Zhang, X; Gao, S; Wu, D Citation The 2010 IEEE Vehicle
More informationStudy of the Effectiveness of Switching-on LED Illumination Devices and the Use of Low Voltage System in Lighting
Acta Polytechnica Hungarica Vol. 12, No. 5, 2015 Study of the Effectiveness of Switching-on LED Illumination Devices and the Use of Low Voltage System in Lighting Аizhan Zhaparova, Dimitry Titov, Аlexander
More information8 Speed control of Induction Machines
8 Speed control of Induction Machines We have seen the speed torque characteristic of the machine. In the stable region of operation in the motoring mode, the curve is rather steep and goes from zero torque
More informationApplication Guide. Power Factor Correction (PFC) Basics
Power Factor Correction (PFC) Basics Introduction Power Factor, in simple terms, is a number between zero and one that represents the ratio of the real power to apparent power. Real power (P), measured
More informationTamura Closed Loop Hall Effect Current Sensors
Tamura Closed Loop Hall Effect Current Sensors AC, DC, & Complex Currents Galvanic Isolation Fast Response Wide Frequency Bandwidth Quality & Reliability RoHs Compliance Closed Loop Hall Effect Sensors
More informationSIMULATION 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 informationIndustry-Driven Power Engineering Curriculum Development in an Electrical Engineering Technology Program
Industry-Driven Power Engineering Curriculum Development in an Electrical Engineering Technology Program Aleksandr Sergeyev Michigan Technological University avsergue@mtu.edu Nasser Alaraje Michigan Technological
More informationApplication Information Improving Efficiency in Smart Grid Applications With Fully Integrated Current Sensing ICs
Application Information Improving Efficiency in Smart Grid Applications With Fully Integrated Current Sensing ICs By Shaun Milano, and Andreas P. Friedrich Allegro MicroSystems Europe Focus on the Photovoltaic
More informationTHIS paper reports some results of a research, which aims to investigate the
FACTA UNIVERSITATIS (NIŠ) SER.: ELEC. ENERG. vol. 22, no. 2, August 2009, 227-234 Determination of Rotor Slot Number of an Induction Motor Using an External Search Coil Ozan Keysan and H. Bülent Ertan
More informationISPS2014 Workshop Energy to Smart Grids Presenting results of ENIAC project: E2SG (Energy to Smart Grid)
ISPS2014 Workshop Energy to Smart Grids Presenting results of ENIAC project: E2SG (Energy to Smart Grid) Bidirectional isolating AC/DC converter for coupling DC grids with the AC mains based on a modular
More informationLine Reactors and AC Drives
Line Reactors and AC Drives Rockwell Automation Mequon Wisconsin Quite often, line and load reactors are installed on AC drives without a solid understanding of why or what the positive and negative consequences
More informationPerformance Analysis of Multi Level Inverter with DC Link Switches for Renewable Energy Resources
International Journal of Innovative Technology and Exploring Engineering (IJITEE) ISSN: 2278-3075, Volume-2, Issue-6, May 2013 Performance Analysis of Multi Level Inverter with DC Link Switches for Renewable
More informationHybrid Power System with A Two-Input Power Converter
Hybrid Power System with A Two-Input Power Converter Y. L. Juan and H. Y. Yang Department of Electrical Engineering National Changhua University of Education Jin-De Campus, Address: No.1, Jin-De Road,
More informationIntroduction to Power Supplies
Introduction to Power Supplies INTRODUCTION Virtually every piece of electronic equipment e g computers and their peripherals calculators TV and hi-fi equipment and instruments is powered from a DC power
More informationAC Induction Motor Slip What It Is And How To Minimize It
AC Induction Motor Slip What It Is And How To Minimize It Mauri Peltola, ABB Oy, Helsinki, Finland The alternating current (AC) induction motor is often referred to as the workhorse of the industry because
More informationControl Strategy for Three Phase Shunt Active Power Filter with Minimum Current Measurements
International Journal of Electrical and Computer Engineering (IJECE) Vol.1, No.1, September 2011, pp. 31~ 42 ISSN: 2088-8708 31 Control Strategy for Three Phase Shunt Active Power Filter with Minimum Current
More informationAnalysis 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 informationugrid Testbed. Rein in microgrid complexity. With ease.
ugrid Testbed. Rein in microgrid complexity. With ease. Outsmart the microgrid. ugrid Testbed Ultimate test solution for microgrid control system verification What is a microgrid? Microgrid is a collection
More informationPOWER QUALITY ISSUES IN A STAND-ALONE MICROGRID BASED ON RENEWABLE ENERGY
POWER QUALITY ISSUES IN A STAND-ALONE MICROGRID BASED ON RENEWABLE ENERGY IOAN ŞERBAN, CORNELIU MARINESCU Key words: Microgrid (MG), Power quality, Dump load, Frequency control. The paper presents several
More information