High Performance Drives
Technical Lecture Session
Permanent Magnet Synchronous Motor Drives and Control Strategies
IPM, field-weakening, curve fitting, pump-back system
Interior Permanent Magnet (IPM) motors are featured for their wide speed range operation by field-weakening technique. The proposed off-line calculation and curve fitting based IPM motor drive control strategy can achieve seamless transition between normal and field-weakening operations and maintain minimum phase current. The detailed current reference generation algorithm is presented. The control diagrams with the implementation of proposed strategy are also demonstrated in two cases which are real motor operation and pump-back operation. PLECS simulations have been conducted under both cases and preliminary experiment results are also included.