中国电机工程学报Issue(17)：4517-4523,7.DOI:10.13334/j.0258-8013.pcsee.2015.17.028
一种利用转矩观测矫正异步电机转子磁场定向的方法
A Correction Method for Rotor Field Orientation of Induction Machine Based on Torque Observation
摘要
Abstract
The performance of induction motor vector control is easily impacted by the variation of motor parameters. To overcome the effect of rotor time constant changing, a field orientation real-time correction method of rotor flux accurate orientation based on torque observer was proposed. The slip frequency is compensated directly by applying a PI regulator which uses the difference produced by the two torque observers indq andαβ reference frame respectively when there’s a flux directional deviation. The coupling ofdq-axis current caused by the rotor time constant change, and the influence exerted by the directional deviation on rotor flux and torque observer were analyzed. Since this method directly observes the stator flux without involving the rotor resistance, the accuracy of correction can be effectively ensured. Besides, this method is very simple in structure and easily to be implemented in industrial application. Both simulation and experiment results have verified the effectiveness of the new proposed method.关键词
异步电机/间接矢量控制/转子时间常数/转矩观测/转差频率矫正Key words
induction motor/indirect vector control/the rotor time constant/torque observer/slip frequency correction分类
信息技术与安全科学引用本文复制引用
燕俊峰,王晓琳,廖启新..一种利用转矩观测矫正异步电机转子磁场定向的方法[J].中国电机工程学报,2015,(17):4517-4523,7.基金项目
江苏高校优势学科建设工程资助项目。Project Supported by the Priority Academic Program Development of Jiangsu Higher Education Institutions （）
