Development of a Constant Switching Frequency Deadbeat Predictive Control Technique for Field-Oriented Synchronous Permanent-Magnet Motor Drive

This paper develops an appropriate predictive current controller (PCC) for fast torque monitoring and high-performance operation of a permanent-magnet synchronous motor (PMSM) drive involving constant switching frequency. The proposed controller is based on a convenient combination of deadbeat and direct predictive control (DPC) techniques. Its response is compared to that of a typical proportional-integral (PI) current controller in field-oriented control (FOC) strategy. The analysis illustrated improved transient characteristics concerning faster speed changes as well as reduced current and torque ripple while it enables additional control criteria inclusion. The simulated results have been validated by measurements on a test bench.