High Performance Drives
Technical Lecture Session
Permanent Magnet Synchronous Motor Drives and Control Strategies
Model predictive control, five-level active neutral-point-clamped, motor drive
This paper proposed a two-stage optimization-based model predictive control (MPC) scheme for DC-link voltage and three phase capacitor voltages balance while maintaining fast control of the motor. In the first stage, the switching states of the low-frequency cell are selected based on the sign of the desired output voltage through a deadbeat approach; in the second stage, the optimal duty cycles for high-frequency cell are calculated by the multiple vector MPC and generated by phase-shifted pulse-width modulation based on voltage-second balance principle. An initial experimental evaluation has been presented to validate the effectiveness of the proposed MPC.