感应电动机直接转矩控制低速性能的改善  

Improvement of Low Speed Performance of Direct Torque Control in Induction Motor

作　　者：张爱玲[1] 杨文杰[1] 韦文武[1] 

机构地区：[1]太原理工大学,山西太原030024

出　　处：《微特电机》2007年第8期52-54,共3页Small & Special Electrical Machines

基　　金：山西省自然科学基金资助项目(20051036)

摘　　要：针对感应电动机直接转矩控制低速时转矩脉动大的问题,提出了一种改进的转矩预测法,仿真结果表明,该方法能有效地减小转矩脉动、改善定子磁链和电流波形,提高了起动的快速性,并减少了开关次数。To reduce the low speed torque ripple of induction motor based on direct torque control（DTC）,a new control strategy-improved torque predict was proposed.The simulation showed that it can reduce the torque ripple,improve the waveform of stator flux and current,make the start of motor more fast and reduce the switch times.

关 键 词：直接转矩控制 转矩脉动 转矩预测 

分 类 号：TM346[电气工程—电机]