The Design of Controller for PMSM Based on DSP and IPM

Abstract

In this paper, according to the characteristics and operation principle of Permanent Magnet Synchronous Machine (PMSM), a controller of PMSM is designed from the aspects of hardware and software. The electric motor controller is taken as the design target. Firstly, the TMS320F28035, which has a working clock frequency of 60MHz, is used as the coreand the drive. Secondly, the feedback circuits are designed for controllerusing Cadence. Thirdly The FOC control strategy is used to design a PMSM motor controller for verification. The controller uses the PWM signal as the main driving signal, and the DSP’s A/D sampling module and QEP module are the main feedback signals. It adopts the combination of FOC vector control and PI loop control strategy of speed loop and current loop double closed loop to realize motor control. Finally, the CCS software is used for testing to make the motor stable and operate at a higher efficiency, which can achieve better speed regulation.