永磁同步电机无位置传感器模糊滑模观测技术  

Technique on fuzzy sliding mode observer for permanent magnet synchronous motor(PMSM) sensorless detection

作　　者：周永勤[1] 崔延光[1] 王旭东[1] 周美兰[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150080

出　　处：《哈尔滨工程大学学报》2013年第6期728-733,共6页Journal of Harbin Engineering University

基　　金：教育部科学技术重点资助项目(208037)

摘　　要：针对饱和函数滑模观测器趋近滑模面较慢的问题,引入模糊控制,用模糊控制器调节开关函数输出幅值,以抑制抖动并快速到达滑模面.通过与饱和函数滑模观测器的比较分析,验证了模糊滑模观测器能柔化控制器的输出信号,使响应速度更快,可以实现转子位置的精确估算.同时提出一种基于锁相环的转速估算方法,解决了转速实时估算问题.In order to solve the problem that the saturation function＇s sliding mode observer reaches the sliding sur？face slowly, a fuzzy strategy using the fuzzy controller to regulate the output amplitude of the switch function was proposed for alleviating the system chattering in efforts to reach the sliding surface quickly. In contrast to the sliding mode observer of the saturation function, it was verified that the fuzzy sliding mode observer could soften the output signal of the controller and make the response faster, so as to estimate the rotor position precisely. Furthermore, a speed estimation method based on Phase Locked Loop （PLL） was proposed for the realization of the real-time esti？mation of speed as well.

关 键 词：永磁同步电机 滑模观测器 模糊控制 转子位置估算 锁相环 

分 类 号：TM351[电气工程—电机]