The Design of Controller for SRM Based on STM32

Abstract

This motor controller is designed based on the structure and principle of switched reluctance motor (SRM). The control system is based on the STM32 produced by STMicroelectronics and consists of a power supply driver circuit, a driver circuit and a protection circuit. The doubly salient structure of SRM is different from common motors so that its working mode and control method are also different. The control methods used by SRM are current chopping control (CCC), voltage chopping control (VCC), and angular position control (APC). In addition, PI closed-loop control is used to optimize system performance. In this paper, the three-phase 6/4-pole SRM is taken as an example to verify the feasibility and stability of the system design. Finally, the experiment results show that different speed control strategies CCC/VCC based low-speed and APC based high-speed have good dynamic and steady-state response under PI control.