改进混沌算法在掘进机电控系统中的应用研究  

Application and Research on Improved Chaos Algorithm in Hydraulic Electric Control System of Roadheader

作　　者：李文 杨振南 伍铁斌 Li Wen;Yang Zhennan;Wu Tiebin(College of Electronic and Information Engineering,Hunan University of Science and Engineering,Yongzhou 425199,China;College of Energy and Electrmechanical Engineering,Hunan University of Humanities,Science and Technology,Loudi,417000,China)

机构地区：[1]湖南科技学院电子与信息工程学院,湖南永州425199 [2]湖南人文科技学院能源与机电工程学院,湖南娄底417000

出　　处：《煤矿机械》2020年第6期23-25,共3页Coal Mine Machinery

基　　金：湖南省教育厅优秀青年项目(19B217);永州市科技局计划项目(2018DZ01);湖南科技学院计算机科学与技术应用特色重点学科资助。

摘　　要：针对掘进机液压电控系统的非线性、时滞性及掘进负载不可预测性等系列特征问题,提出了一种改进混沌算法的PID优化控制策略,在传统的混沌算法的基础上,引入搜索佳点集局部并行搜索,应用在掘进机液压电控系统PID参数的优化上。仿真结果表明,相比于传统PID控制或模糊PID控制,该算法实现简单、无超调、优化效率高,且能扰动下快速跟踪设定目标值,实现对掘进机液压缸线速度的自适应控制,验证了系统近似建模下算法的可行性与领先性。Aiming at the problems of nonlinear and time-delay complex system of the hydraulic electric control system of the cantilever roadheader and the unpredictability of the load in the tunnelling,the improved chaos algorithm was proposed to PID optimal control.The improved chaos algorithm is based on the traditional chaos algorithm and introduces the local parallel search of the search best point set,and is applied to the optimization of PID parameters of the hydraulic electric control system of the roadheader.The simulation results show that compared with the traditional PID control or fuzzy PID control,the algorithm is simple,no overshoot,high optimization efficiency,and can quickly track and set the target value under disturbance,realize the adaptive control of the hydraulic cylinder line speed of the roadheader,and verify the feasibility and leadership of the system approximate modeling method.

关 键 词：悬臂式掘进机 PID控制 混沌优化 自适应控制 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置] TD421.5[自动化与计算机技术—控制科学与工程]