摘要
研究了基于新型趋近律的积分模糊滑模控制方法,并以永磁同步电机(PMSM)矢量控制系统为背景进行了应用研究。设计了基于新型趋近律的积分模糊滑模速度环控制器,有效地抑制了传统滑模变结构控制中的固有抖振问题。在滑模面的设计中引入误差信号的积分项,避免控制量中对加速度信号的要求,增强系统的抗干扰能力;引入了模糊控制,可以抑制滑模控制抖振。并提出一种新型趋近律,进一步对滑模抖振进行抑制,提高了滑模面的趋近速度。仿真表明,该方法能够实现精确的速度控制,与传统的滑模控制相比,该控制器具有更好的跟踪性能。
The integral fuzzy sliding mode control approach based on a novel reaching law is investigated in this paper. And this control approach is verified in permanent magnet synchronous motor （PMSM） vector control system. The speed loop controller can effectively suppress the inherent chattering problem in traditional sliding mode variable structure control. To avoid the requirement for acceleration signal in control and enhance the system anti - interference ability, the sliding mode surface with error signal integral items is proposed. Aiming at suppressing the chattering of sliding mode control, the fuzzy control is introduced. Atthe same time, a novel reaching law which can further suppress the chattering and improve the reaching speed is proposed. The results of simulations show that the proposed sliding mode controller can achieve ac- curate speed control. Compared with the traditional sliding mode controller, the proposed sliding mode controller has better tracking performance.
出处
《航天控制》
CSCD
北大核心
2014年第6期81-87,共7页
Aerospace Control
基金
国家自然科学基金资助项目(51375323
61164014)
关键词
永磁同步电机
新型趋近律
积分模糊滑模控制
抖振
Permanent magnet synchronous motor （PMSM）
Novel reaching law
Integral fuzzy slidingmode control （ IFSMC ）
Chattering
