机械科学与技术2024，Vol.43Issue(5)：858-864,7.DOI:10.13433/j.cnki.1003-8728.20220265
采用变滞环PWM的开关磁阻电机直接瞬时转矩控制方法
A Method for Direct Instantaneous Torque Control of Switched Reluctance Motor Using Variable Hysteresis Pulse Width Modulation
摘要
Abstract
For the traditional switched reluctance motors(SRM)which are based on direct instantaneous torque control method,it is easy to have the problem of torque ripple when controlled by fixed hysteresis control method.To solve this problem,a new direct instantaneous torque control method based on variable hysteresis PWM is proposed.Firstly,the operation intervals of the SRM are determined,and then the hysteresis functions for each interval are set up and optimized.After that,based on the optimized hysteresis function,the current rotor position angle,and the corresponding torque deviation,a variable hysteresis PWM control method is proposed to control the switches of the power conversion circuit,so that the torque ripple is able to gets suppressed.Finally,simulations were conducted to verify the effectiveness of this method,and comparative analysis with the traditional fixed hysteresis-based direct instantaneous torque control method was also performed.Results show that the new method have huge application value.It can not only significantly reduce the torque ripple of the SRM,but also effectively improves its operational efficiency.关键词
开关磁阻电机/直接瞬时转矩控制/变滞环函数/转矩脉动抑制Key words
switched reluctance motor/direct instantaneous torque control/variable hysteresis function/torque ripple suppression分类
信息技术与安全科学引用本文复制引用
张文港,张小平..采用变滞环PWM的开关磁阻电机直接瞬时转矩控制方法[J].机械科学与技术,2024,43(5):858-864,7.基金项目
湖南省自然科学省市联合基金项目(2021JJ50123) （2021JJ50123）
