异步电动机矢量控制中的转速辨识  

Speed identification for speed-sensorless vector control of induction motors

作　　者：毕平劲 龚世缨[2] 

机构地区：[1]湖北三环发展股份有限公司,湖北武汉430223 [2]华中科技大学电气学院,湖北武汉430074

出　　处：《电气传动自动化》2008年第3期25-26,38,共3页Electric Drive Automation

摘　　要：介绍了异步电动机无速度传感器矢量控制中的转速辨识方法。基于电机的理想模型和瞬时无功功率理论,采用合适的控制方法,从定子电压电流中提取转子转速信息。给出了控制系统框图,并说明了理论和实际应用中需要解决的问题。Some approach to estimate induction motor speed from measured terminal voltages and currents for speedsensorless control are proposed. The proposed approach are based on observing the counter electromotive force vector or the instantaneous reactive power of the rotor flux. And then a hardware architecture and software figure are put forward. The simulation results and some theoretical problems for its practical application are discussed.

关 键 词：异步电机 矢量控制 无速度传感器控制 瞬时无功功率 

分 类 号：TM343[电气工程—电机]