摘要：传统的无刷直流电机控制器往往采用DSP或8/16位微控制器。DSP控制器虽然控制精度高，但是价格昂贵，控制电路复杂；8/16位微控制器虽然成本低，但是性能有限，不适宜编写复杂的算法，控制精度较差。针对上述不足，设计了一种三相无刷直流电机的控制系统。以意法半导体的STM32F103VET6为控制器，采用由电流环和转速环构成的双闭环控制系统，其中转速环采用模糊PID算法，电流环采用常规PI算法，经实验验证，该系统性能良好，在一定控制精度下能够满足工业需求。

关键词：无刷直流电机；模糊控制；STM32F103
Abstract: Traditional brushless DC motor controller usually uses the DSP or 8/16 bit microcontrollers The control precision of DSP controller is high, but the price is expensive and the control circuit is complex; the cost of 8/16 bits microcontroller is low, while the performance is limited, which is not appropriate to write complex algorithm and has poor control accuracy Due to the shortcoming, this paper designed a control system of threephase brushless DC motor which made STM32F103VET6 of STMicroelectronics as the controller and adopted the double loop control system which consisted of current loop and speed loop The speed loop adopted the fuzzy PID algorithm and the current loop adopted conventional PI algorithm The system performance is good and can meet industrial demand under a given accuracy through the experimental verification

Key words: brushless DC motor； fuzzy control；STM32F103