摘要
在高性能的交流传动系统中,特别是负反馈系统中,转速测量和磁链的观测占据着决定性的作用。为了能够准确辨识转速和磁链,在扩展卡尔曼滤波器(EKF)算法的基础上研究了一种同时观测磁链和转速的新型观测器,并在永磁同步电动机直接转矩控制系统上实现了仿真试验。试验结果都验证了基于EKF磁链、转速辨识系统的正确性和实用性。
Speed measurement and stator flux observation play a decisive role in high performance AC drive systems, especially in negative feedback systems. A new estimation had been done in order to identify the speed and stator flux, which was a kind of flux observation and speed estimation based on extended kalman filter algorithm. At the same time, simulation experiment had been successfully achieved on permanent magnet synchronous motor direct torque control system, the results of which verified the correctness and practicality of the extended EKF flux speed identification system.
出处
《电机与控制应用》
北大核心
2013年第8期9-13,18,共6页
Electric machines & control application
关键词
卡尔曼滤波
永磁同步电动机
磁链观测
直接转矩控制
kalman filter
permanent magnet synchronous motor （ PMSM ）
stator flux observation
direct torque control （DTC）
