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.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
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)
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
permanent magnet synchronous motor
sliding mode observer
fuzzy control
rotor position estimation
phase locked loop
