基于自适应模糊PID的液控稳频水流发电系统研究
陈勇洁,林晓焕,吕广雷,李峙毅,罗岩,钟世龙
(西安工程大学 机电工程学院,陕西 西安 710048)
摘要:针对现有液控稳频自然水流发电装置控制系统响应时间长,控制精度不足,超调量大,达到稳态时间过长等不足,提出了一种基于自适应模糊PID的液控稳频水流发电系统,对变排量马达及其变排量机构进行数学建模,推得传递函数,通过MATLAB工具箱设计了模糊控制器,利用控制变量思想对控制系统进行仿真,对比传统PID和模糊PID的仿真结果得出结论:采用自适应模糊PID的液控稳频水流发电系统有更好的控制精度,超调量小,达到稳态时间更短、鲁棒性强等优势。
关键词:水流发电;液控稳频;模糊PID;MATLAB仿真
中图分类号:TH137 文献标志码:A doi:10.3969/j.issn.1006-0316.2021.10.003
文章编号:1006-0316 (2021) 10-0016-06
Hydraulic-Controlled Frequency Stabilized Water Flow Power Generation System Based on Self Adaptive Fuzzy-PID
CHEN Yongjie,LIN Xiaohuan,LYU Guanglei,LI Zhiyi,LUO Yan,ZHONG Shilong
( School of Mechanical and Electrical Engineering, Xi'an Polytechnic University, Xi'an 710048, China )
Abstract:Aiming at solving the problems of long response time, insufficient control accuracy, large overshoot, and long time to reach the steady state of the existing hydraulic-controlled frequency stabilized natural water flow power generation system, a new power generation system based on adaptive Fuzzy-PID is proposed. Mathematical model of variable displacement motor and its variable displacement mechanism is established and the transfer function is obtained. A fuzzy controller is designed through the MATLAB toolbox and the control system is simulated by using the idea of control variable. Comparing the simulation results of traditional PID and Fuzzy-PID,we conclude that the hydraulic-controlled frequency stabilized water flow power generation system using adaptive Fuzzy-PID has the advantages of better control accuracy, small overshoot, shorter time to reach steady state, and strong robustness.
Key words:water flow power generation;hydraulic-controlled frequency stabilized;Fuzzy-PID;MATLAB simulation
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收稿日期:2021-05-11
基金项目:西安市科技局基金(GXYD7.9)
作者简介:陈勇洁(1994-),男,陕西清涧人,硕士研究生,主要研究方向为机电控制、液压,E-mail:2873573272@qq.com。*通讯作者:林晓焕(1964-),女,陕西西安人,教授,主要研究方向为数据通信与计算机控制,E-mail:li826850999@126.com。
 

 

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