电液位置伺服系统规则自校正模糊PID控制器.pdf
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第 41 卷第 3 期 中南大学学报( 自然科学版) Vol.41 No.3
2010 年 6 月 Journal of Central South University (Science and Technology) Jun. 2010
电液位置伺服系统的规则自校正模糊PID 控制器
邵俊鹏,王仲文,李建英,韩桂华
(哈尔滨理工大学 机械动力工程学院,黑龙江 哈尔滨,150080)
摘 要:介绍电液位置伺服控制系统的组成与工作原理,并利用实时工作间(RTW)的半物理仿真环境和MATLAB
系统辨识工具箱,对电液位置伺服系统进行系统模型辨识及验证。提出一种规则自校正模糊 PID 控制器,并将其
用于辨识得到的模型中,设计一种在线的模糊推理算法,使得模糊控制规则可以得到实时在线调整。仿真结果表
明:基于规则自校正模糊 PID 控制器的电液位置伺服系统的性能得到较大改善,既具有 PID 控制器高精度的优点,
又具有模糊控制器快速、适应性强的特点,保证系统具有良好的动、稳态特性。
关键词:电液位置伺服系统;模型辨识;自校正模糊PID ;半物理仿真
中图分类号:TH137 文献标志码:A 文章编号:1672−7207(2010)03−0960−06
Rule self-tuning fuzzy-PID controller of
electro-hydraulic position servo system
SHAO Jun-peng, WANG Zhong-wen, LI Jian-ying, HAN Gui-hua
(College of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150080, China)
Abstract: The composition and principle of the electro-hydraulic position servo control system were introduced, and
system model identification and verification of electro-hydraulic position servo system were carried out based on
semi-physical simulation environment of real-time workshop (RTW) and system identification toolbox in MATLAB. A
rule self-tuning fuzzy-PID controller was presented to control the identified model and a new fuzzy inference algorithm
was designed to adjust the rules of fuzzy controller on line. The results of simulation show that the performance of the
electro-hydraulic position servo system based on rule self-tuning fuzzy-PID controller is improved significantly, which
not only holds the precise character of PID controller but also possesses the flexible advantage of
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