基于Cortex M3处理器的开关磁阻电机控制器设计

Design of switched reluctance motor controller based on Cortex M3 processor

针对常见的开关磁阻电机控制器性能与成本难以兼顾的现状,以32位ARM Cortex M3内核的高性能微处理器STM32F103为核心,设计实现了低压开关磁阻控制器,包括处理模块、功率变换器和检测模块。采用处理器内部模块完成数字和模拟信号的采集、计算和控制信号输出,并通过三相不对称半桥式功率变换器和电流、电压、位置反馈信号实现了对三相12/8极结构开关磁阻电机的控制。测试结果满足设计目标要求。

The existing switched reluctance motor （SRM） controller is usually difficult to balance between high performance and low cost. This paper has designed and implemented a low-voltage SRM controller, based on high-performance microprocessor STM32F103 which has a 32-bit ARM Cortex M3 core. The controller includes processing module, power converter and detection module. Several internal module of the processor are utilized to complete the digital and analog signal acquisition, calculation and control signal output. Using a three-phase asymmetric half-bridge power converter and the feedback signal of current, voltage and position, this paper has completed the control of a 3-phase 12 / 8 SRM. The test results indicate that the developed controller has met the design objectives and requirements.