摘要
矿用刮板输送机链条张力控制系统是一个具有非线性、时变性等特点的复杂控制系统.传统的PID控制将无法满足越来越高的精度要求。为了获得令人满意的控制效果,提出了基于趋近律的滑模控制,在此基础上,为了改善系统的抖振和响应速度,提出了一种改进的趋近律滑模控制,提高系统的初始运动速度,降低系统在切换面附近的趋近速度。通过建立矿用刮板输送机链条张力控制系统的Simulink仿真模型,仿真结果表明,与传统PID控制相比,系统响应速度、控制精度和系统抖振等都得到了显著改善。
The chain tension control system of scraper conveyor in mine is a complex control system with nonlinear and time-varying characteristics.The traditional PIP control will not meet the requirements of higher and higher accuracy.In order to obtain satisfactory control effect,a sliding mode control based on reaching law,on this basis,in order to improve the buffeting and response speed of the system ,and proposes an improved sliding mode control,increase the initial velocity of the system,reduce the switching surface near the reaching speed.Through the Simulink simulation model of scraper conveyor chain tension control system,the simulation results show that compared with the traditional PID control, the system response speed,control precision and chatterin^etc.have been significantly improved.
作者
赵悦
屈贤
兰英
ZHAO Yue;QU Xian;LAN Ying(Chongqing Vocational Institute of Engineering,Chongqing 402260,China;Enginering and Technical College,Chengdu University of Technology,Leshan 614007,China)
出处
《煤炭技术》
CAS
2018年第12期293-295,共3页
Coal Technology
基金
四川省教育厅自然科学一般项目(16ZB0403)
关键词
刮板输送机
张力控制
滑模控制
改进趋近律
PID控制
scraper conveyor
tension control
sliding mode control
improved approach law
PID control
