五电平拓扑下开关磁阻电机直接瞬时转矩控制  

Direct instantaneous torque control of switched reluctance motor with five level converter

作　　者：程勇[1,2] 林辉[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072 [2]西安科技大学电气与控制工程学院,陕西西安710054

出　　处：《电机与控制学报》2011年第4期18-22,共5页Electric Machines and Control

基　　金：航空科学基金项目(2007ZC53036)

摘　　要：针对开关磁阻电机转矩脉动,提出开关磁阻电动机五电平驱动拓扑结构和滞环控制策略。研究和分析五电平拓扑的五电平导通原理,并与不对称半桥驱动电路三电平导通进行比较。结合开关磁阻电机绕组导通和直接瞬时转矩控制原理,设计五电平驱动下开关磁阻电机直接瞬时转矩滞环控制策略,并且进行仿真实验。仿真结果证实与不对称半桥电路相比,五电平拓扑下的转矩控制算法简单,而且有效减小转矩脉动,改善转矩的动态特性。In terms of torque ripple,five-level converter of switched reluctant motor is proposed and analyzed.Conduction of new topology was analyzed,and conduction comparison between new topology and asymmetric half bridge was performed.Based on conduction theory and direct instantaneous torque control（DITC）,hysteresis control strategy was designed in five level converter.Finally,torque simulation was performed.Compared with asymmetric half bridge,results of simulation prove that this method which is simple could reduce SRM＇s torque ripple effectively and promote dynamic characteristic.

关 键 词：开关磁阻电机 转矩脉动 直接瞬时转矩控制 五电平驱动拓扑 

分 类 号：TM352[电气工程—电机]