摘要
针对非连续大惯量低频负载扰动下的泵控马达系统动态性能差的特点,提出了采用基于干扰观测器的自适应模糊控制。介绍了干扰观测器和自适应模糊控制器的设计方法。仿真结果表明,基于干扰观测器的自适应模糊控制器较单独的自适应模糊控制器或常规PID控制器对负载扰动表现出更强的适应性和鲁棒性,系统动态特性得到改善。
Because pump-control-motor system shows bad dynamic performance during non-consecutive large inertia of low-frequency load disturbance process, self-tuning fuzzy controller for the system was presented. The methods of disturbance observer and self-tuning fuzzy controller design were described. Simulation results show that comparing with the conventional PID controller or self- tuning fuzzy controller alone, the self-tuning fuzzy controller based on disturbance observer has better adaptability and higher robustness towards the system load disturbance, and the dynamic performance of the system is improved.
出处
《机床与液压》
北大核心
2009年第12期154-156,162,共4页
Machine Tool & Hydraulics
关键词
泵控马达
自适应模糊控制
干扰观测器
仿真
Pump-control-motor
self-tuning fuzzy control
Disturbance observer
Simulation
