ZHANG Peng1, JIA Hong ping1, WANG Yun cai2, LIU Yun1

 

(1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China;

 

2. School of Internet of Things Engineering, Jiangnan University, Wuxi 214122, China)

 

 

Abstract: Aiming at the problems of poor robustness, torque ripple and great noise in the brushless dc motor, under the traditional PI square wave control, a fuzzy PI vector control method for brushless dc motor was proposed by analyzing the mathematical model in d q coordinates of brushless direct current motor (BLDCM) and combining fuzzy control and vector control theory. Then By establishing the simulation model of BLDCM in the Simulink environment, the torque and rotational speed waveform were analyzed under the fuzzy PI vector control algorithm. The vector control system platform based on the main control chip STM32F was adopted to test the proposed algorithm. The research results show that the fuzzy PI vector control algorithm of BLDCM has good robustness under different load, and can achieve the purpose of low torque ripple, smooth movement, starting fast and low noise.

 

Key words: brushless direct current motor (BLDCM); Fuzzy PI; vector control; Robustness