A PWM transistor inverter for an ac electric vehicle drive
Abstract
A prototype system consisting of closely integrated motor, inverter, and transaxle has been built in order to demonstrate the feasibility of a three-phase ac transistorized inverter for electric vehicle applications. The microprocessor-controlled inverter employs monolithic power transistors to drive an oil-cooled, three-phase induction traction motor at a peak output power of 30 kW from a 144 V battery pack. Transistor safe switching requirements are discussed, and a circuit is presented for recovering trapped snubber inductor energy at transistor turn-off.
- Publication:
-
Institute of Electrical and Electronics Engineers
- Pub Date:
- October 1981
- Bibcode:
- 1981ieee.meet.....S
- Keywords:
-
- Electric Motor Vehicles;
- Electronic Control;
- Induction Motors;
- Pulse Duration Modulation;
- Static Inverters;
- Transistor Circuits;
- Circuit Protection;
- Feasibility Analysis;
- Microprocessors;
- Power Conditioning;
- Prototypes;
- Speed Control;
- Torque;
- Transportation Energy;
- Waveforms;
- Electronics and Electrical Engineering