The Kress Intelligent Motor and Drive System

Transcription

1 The Kress Intelligent Motor and Drive System Technology At The Heart of the 21 st Century American Manufacturing Renaissance 1

2 Motor and Drive Systems 2015 A Design for Fixed Electric Motor Systems Created by New Motor Technology, Improved Drive Design and Solid State Electronic Devices Thursday, January 22, :25-11:55 AM Brian K. Ott, CTO Kress Technology Dr. Keith Klontz, CEO AMT Dr. Dal Ohm, President Drivetech, Inc. 1/23/2015 2

3 Agenda (What Makes Kress Different) Design Goals / Design Modular design Totally field reparable Flexible geometry Wide speed / torque envelope Integrated Drive Network Interface / IoT Test Results Next Steps 10 hp Industrial Prototype Kress Technology 2015 / 3

4 Motor Layout Pictorial

5 Axial Cross Section of 10 hp Prototype Output Shaft Kress Technology 2015 / 5

6 Kress Stators Can Be Easily Replaced In The Field Kress Technology 2015 / 6

7 Actual Stator Replacement Kress Technology 2015 / 7

8 Drive & Control of SRM AC 220V DB1 Shunt Regulator C4-6 C3 C2 C1 Q1L Q1H CS1 SRM Motor Q2H AC 110V Rectified DC Supply 110V Cooling Fan Q2L Q3L CS2 Q3H CS3 Control Power Supply DC 12V 3A Control Computer Relay Control +12V Power RS-232 (3)/CAN I/O Heatsink Temp Sense Interface Board Control Board Gate Drive Signal Current Sense Resolver Feedback SR Motor Drive

9 Key Innovations Magnetics Power Electronics Networking Axial/Circumferential flux path Dual spiral rotors Hiperco50 rotor Individual stators Potential to manage configurations via software parameter manipulation IGBT controls 3 firing groups of 4 stators each Programmable CPU allows fine tuning of firing patterns Sensors deliver data to CPU in real time Pulse Width Modulation technique More than an onoff switch Connect to automation systems Local MMI via handheld devices like tablets, laptops Graphical User Interface (GUI) under development 9

10 Results as of January 22, 2015 Mechanical assembly completed Drive built, first stage programming completed Static torque testing complete Finite Element Analysis (FEA) model Performance improvement testing and calibration scheduled 10

11 DC Current Static Torque Test Results Torque of phase A Torque (Nm) A 45A FEA Angle (degree)

12 Next Steps for Kress Technology Speed/Torque/Efficiency Characterization Iterative testing and FEA modeling Software-driven scalability prototyping Design for manufacturability, cost reduction Application-specific design geometry Kress Technology 2015 / 12

13 Panel Discussions

14 Motor Layout Pictorial

15 Flux Path Pictorial Left Spiral Wound Rotor Right Spiral Wound Rotor

16 DC Current Static Torque Test Results Torque of phase A Torque (Nm) A 45A FEA Angle (degree)

17 Drive & Control of SRM AC 220V DB1 Shunt Regulator C4-6 C3 C2 C1 Q1L Q1H CS1 SRM Motor Q2H AC 110V Rectified DC Supply 110V Cooling Fan Q2L Q3L CS2 Q3H CS3 Control Power Supply DC 12V 3A Control Computer Relay Control +12V Power RS-232 (3)/CAN I/O Heatsink Temp Sense Interface Board Control Board Gate Drive Signal Current Sense Resolver Feedback SR Motor Drive

18 Kress SRM Drive Design 10 HP Continuous, 20 HP Peak rating 3-Phase Asymmetric Bridge Converter Two Semitrans modules per phase (1 IGBT+1 Diode) + Vbus Vbus + Qa A Qb B Qc C Opto-isolated gate drive Qa Qb Qc 32-bit Floating-point DSP control -

19 Current Regulation & Commutation 3 Independent Phase Current Regulators One Open-phase Detection & Limp mode Operation Fault Detection Over-current Over-temp Locked Rotor Velocity or Position Controller Rotor Angle + T* Current Waveform Profile Based on Electrical Angle Ia* Ib* Ic* Ia Ib Ic Current Regulator Current Regulator Current Regulator Va* Vb* Vc* PWM PWM PWM ADC Hdwr PWM1-2 PWM3-4 PWM5-6 Ia,Ib,Ic

20 Advanced turn-on & Shift of conduction angle (Top) standard (Bottom) Shifted Shifting of conduction angle (Top) Standard (Bottom) Advanced Increased conduction angle

21 Thank You