改进型滞环控制器感应电动机直接转矩控制研究  

Research of lmproved Hysteresis Controller for Direct Torque Control of Induction Motor

作　　者：张继勇[1] 薛丰进[1] 袁如明[1] 

机构地区：[1]扬州大学信息工程学院,扬州225009

出　　处：《微电机》2006年第9期46-50,共5页Micromotors

基　　金：扬州大学自然科研基金项目(kk0513110)

摘　　要：针对传统直接转矩控制(DTC)存在的低速转矩波动大的情况,该文通过分析转矩变化规律,研究不同电压矢量对转矩变化所产生的影响,提出了一种新型磁链和转矩的双层滞环方案。该方案简单,易于实现。仿真结果表明,采用该方案能在不降低系统动态性能的情况下,拓展系统的低速运行范围,降低了转矩波动,同时提高了电机的低速转矩。For overcoming high torque ripple in low speed of conventional direct torque control,a new improved double-level hysteresis controller of flux and torque for the direct torque control of an induction was proposed,which based on analyzing the rule of torque varying,the effect on torque changing of different voltage vectors.The proposed method was simple and eased to realize.Simulation and experimental results indicate that the improved controller extends the range of low speed operation and reduces the torqu...

关 键 词：直接转矩控制 滞环控制器 感应电动机 双层滞环 动态性能 转矩波动 

分 类 号：TM346[电气工程—电机]