电工技术学报2017，Vol.32Issue(7)：31-39,9.
基于PWM的开关磁阻电机直接瞬时转矩控制
PWM-Based Direct Instantaneous Torque Control of Switched Reluctance Machine
摘要
Abstract
To solve the serious torque ripple of switch reluctance machine(SRM),a control method is proposed by combining direct instantaneous torque control(DITC) and pulse width modulation(PWM).The electric angle period of three phase SRM is partitioned into nine sectors according to the torque characteristics;Meanwhile,the selection principle of the magnitude of the torque hysteresis loop is given so that the torque hysteresis loop can be adjusted adaptively when operating;Moreover,different from conventional DITC method,the duty ratio of the phase voltage of proposed method is real-time adjusted according to the operating condition and optimized conducting rules instead of only three switch mode for each phase at every sample period.Through using Matlab/Simulink environment and switched reluctance motor drive(SRD) platform,this method was validated and compared with conventional DITC control method,the results reveal that the proposed method is able to solve the obvious problem that conventional DITC control method may has,such as high current ripple.In addition,the torque loop sampling time of DITC can be extended,which shows high application value in the development field of switched reluctance motor type electric vehicle.关键词
开关磁阻电机/直接瞬时转矩控制/脉宽调制/电压矢量Key words
Switched reluctance motor/direct instantaneous torque control/pulse width modulation/voltage vector分类
信息技术与安全科学引用本文复制引用
朱叶盛,章国宝,黄永明..基于PWM的开关磁阻电机直接瞬时转矩控制[J].电工技术学报,2017,32(7):31-39,9.基金项目
国家自然科学基金项目(61503081,61473079)和江苏省自然科学基金项目(BK20140649)资助. （61503081,61473079）
