摘要
电液位置伺服系统被广泛应用在大功率、快速、精确反应的控制系统中,但是由于其具有参数不确定性、非线性、时变性、负载扰动和负载突变等问题,造成电液位置伺服系统高精度控制较难。为了提高电液位置伺服系统的控制性能,提出了其分数阶自抗扰(FOADRC)控制。由于分数阶ADRC增加了有效的可调参数,参数的整定范围变大,能够更有效地控制非线性时变受扰动的系统。为验证效果,通过对分数阶ADRC、ADRC、分数阶PID三种控制器控制的电液位置伺服系统仿真对比,结果显示:与ADRC和FOPID相比,分数阶ADRC响应速度更快,抗扰动能力更强,性能指数ISE和ITSE更好。
Electro-hydraulic position servo system is widely used in the control system with high power,fast and accurate response,but it is difficult to control electro-hydraulic position servo system with high precision because of its parameter uncertainty,nonlinear,time variability,load disturbance and load mutation.In order to improve the control performance of electro-hydraulic position servo system,fractional order active disturbance rejection(FOADRC)control is proposed.Due to the addition of effective tunable parameters in fractional-order ADRC,the tuning range of parameters becomes larger,and the nonlinear time-varying disturbed systems can be controlled more effectively.In order to verify the effect,this paper compares the electro-hydraulic position servo system controlled by fractional-order ADRC,ADRC and fractional-order PID.The results show that compared with ADRC and FOPID,fractional-order ADRC has faster response speed,stronger anti-disturbance ability,and better performance index ISE and ITSE.
作者
孟隆
李跃松
张贻哲
王棒
史孬
MENG Long;LI Yuesong;ZHANG Yizhe;WANG Bang;SHI Nao(College of Mechanical and Electrical Engineering,Henan University of Science and Technology,Luoyang 471003,China)
出处
《组合机床与自动化加工技术》
北大核心
2025年第5期115-120,共6页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金项目(51605145)
河南省自然科学基金项目(232300420085)。
关键词
电液位置伺服系统
ADRC
分数阶ADRC
时变非线性
electro-hydraulic position servo system
ADRC
fractional order ADRC
time-varying nonlinearity
