基于定子电阻观测器的PMSM模糊直接转矩控制系统  

Fuzzy Direct Torque Controlled Drive for PMSM Based on the Stator Resistance Estimator

作　　者：曹先庆[1] 樊立萍[1] 

机构地区：[1]沈阳化工学院信息工程学院,110142

出　　处：《电气应用》2006年第10期95-98,共4页Electrotechnical Application

摘　　要：定子电阻的变化以及传统的滞环控制器不可避免地会导致永磁同步电动机直接转矩控制系统产生较大的转矩和磁链脉动,从而影响系统的运行性能。为解决这一问题,可以在永磁同步电动机直接转矩控制系统中利用定子电阻观测器对定子电阻进行补偿,并且用模糊控制器代替传统的滞环控制器。最后的仿真结果表明：基于定子电阻观测器的永磁同步电动机模糊直接转矩控制系统不但具有较小的转矩、磁链脉动,而且在电动机参数发生变化或受到外部扰动的情况下,系统仍然具有快速响应性能。The stator resistance variation and conventional hystersis controller will bring high torque and flux ripples for permanent magnet synchronous motor （PMSM） direct torque controlled （DTC） drive inevitably, and will affect its performance. In order to solve this problem, the implementation of fuzzy direct torque controlled drive for permanent magnet synchronous based on the stator resistance estimator is presented, which replaces the conventional hystersis controllers with fuzzy controller. Results of simulation are provided to demonstrate that the drive has low torque and flux ripples, and has the quick response performance even under the occurrence of parameter variations and external disturbance.

关 键 词：直接转矩控制 滞环控制器 模糊控制器 

分 类 号：TM921.5[电气工程—电力电子与电力传动]