【摘要】 针对无刷直流电机在传统PI方波运行下存在鲁棒性差,转矩波动大和运行噪音等问题,通过推导BLDCM在d-q坐标系下的数学模型,结合模糊控制和矢量控制理论,提出了模糊-PI无刷直流电机矢量控制方法;通过搭建Simulink系统仿真模型,分析了模糊-PI矢量控制算法下的转矩和转速波形;利用基于主控芯片STM32F的矢量控制系统平台对所提出算法进行了测试。研究结果表明,模糊-PI无刷直流电机矢量控制算法在不同负载下具有较好的鲁棒性,并可以实现低转矩纹波、运动平滑、起动迅速、噪音小的运行效果。更多还原

【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 STM32 F 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.更多还原