异步电机直接转矩控制系统起动方法的研究  

The Research in Startup of Induction Motor Based on Direct Torque Control

作　　者：武德祥[1] 张爱玲[1] 许连丙[1] 王建华[1] 

机构地区：[1]太原理工大学电气与动力工程学院,太原030024

出　　处：《太原理工大学学报》2010年第4期433-436,共4页Journal of Taiyuan University of Technology

基　　金：山西省科技攻关资助项目(20080321045)

摘　　要：为了改善基于直接转矩控制的异步电机起动性能,研究了异步电机直接转矩控制系统的起动过程,提出了磁链优先和斜坡函数两种起动方法,阐述了它们的原理并将二者与文献中提到的串行起动进行了实验对比。实验结果表明,磁链优先法不仅可以改善系统的起动性能还能减小稳态时的磁链脉动,斜坡函数法还可以用在调速、正反转、停车等场合。To improve the starting performance of asynchronous motor based on direct torque control,this paper researched the starting process of asynchronous motor and proposed two startup control strategies for direct torque control of induction machine.These methods are flux priority method and ramp function method.The two methods were compared with serial startup method in the experiment system.The experiment results show that the flux priority method can not only improve the starting performance,but also reduce the ripple of flux;the ramp function method can be used in governor,positive and negative speed,stopping.

关 键 词：直接转矩控制 起动 磁链优先 斜坡函数 

分 类 号：TM301.2[电气工程—电机]