流量反馈型电液比例阀的模糊PID控制特性  

Fuzzy PID Control Characteristics of Flow Feedback Type Electro-Hydraulic Proportional Valve

作　　者：丁兆驿 赵斌 张晓刚 郝云晓 刘赫 DING Zhaoyi;ZHAO Bin;ZHANG Xiaogang;HAO Yunxiao;LIU He(Key Lab of Advanced Transducers and Intelligent Control System of Ministry of Education,Taiyuan University of Technology,Taiyuan Shanxi 030024,China)

机构地区：[1]太原理工大学新型传感器与智能控制教育部重点实验室,山西太原030024

出　　处：《机床与液压》2022年第22期119-124,共6页Machine Tool & Hydraulics

基　　金：国家重点研发计划项目(2019YFB2004502)。

摘　　要：流量反馈型电液比例阀是一种较为复杂的高阶非线性系统,传统PID对其控制效果不佳。为提高该阀的控制性能,提出一套基于模糊控制理论的参数自整定PID算法。分析电液比例阀工作原理,设计一种两输入三输出的模糊自整定PID控制器;采用Simulink和SimulationX软件,分别建立模糊PID模型和电液比例阀模型,对电液比例阀的控制特性进行仿真分析。结果表明:采用所设计的模糊PID控制器,可有效改善新型电液比例流量方向阀稳定性和动态性能。The flow feedback type electro-hydraulic proportional valve is a more complex high-order nonlinear system, for which the control of traditional PID performs poorly.For the purpose of improving the valve control performance, a set of parameter self-tuning PID algorithm based on fuzzy control theory was proposed.The working principle of the electro-hydraulic proportional valve was analyzed, a two-input and three-output fuzzy self-tuning PID controller was designed;Simulink and SimulationX software were used to establish the fuzzy PID model and the electro-hydraulic proportional valve model respectively, and the control characteristics of the electro-hydraulic proportional valve were simulated and analyzed.The results show that by using the designed fuzzy PID controller, the stability and dynamic performance of the new electro-hydraulic proportional flow directional valve can be effectively improved.

关 键 词：电液比例阀 模糊控制 PID控制 

分 类 号：TH137[机械工程—机械制造及自动化]