摘要
电液伺服系统具有响应速度快、控制精度高等优点,被广泛应用于工业控制各领域。但其存在饱和与死区、非线性、时变性、时滞性的特点,针对实际电液伺服系统中这些特点导致的非线性环节建模不准确的问题,采用自适应模糊PID控制算法对电液位置伺服系统进行控制。首先对电液位置伺服系统的开环传递函数进行了推导,其次在AMESim/Simulink联合仿真平台上建立了系统模型与模糊PID控制算法,最后采用模糊PID控制算法对系统的阶跃响应和正弦跟踪性能进行了仿真研究。研究结果表明:自适应模糊PID控制对于输入信号具有响应速度快、跟踪精度高、无滞后与超调等良好的控制特性。
Electro-hydraulic servo system is widely used in various fields of industrial control because of its fast response speed and high control precision.But it has the characteristics of saturation and dead time,nonlinear,time-varying and time-delay.In view of the inaccurate modeling of nonlinear link caused by these characteristics in the actual electro-hydraulic servo system,the author uses adaptive fuzzy PID control algorithm to control the electro-hydraulic position servo system.Firstly,the open-loop transfer function of electro-hydraulic position servo system is derived,Secondly,the system model and fuzzy PID control algorithm are established on AMESim/Simulink co-simulation platform.Finally,the step response and sine tracking performance of the system are simulated by PID and fuzzy PID control algorithm.The results show that the adaptive fuzzy PID control has good control characteristics such as fast response,high tracking accuracy,no delay and small overshoot.
作者
余长顺
袁锐波
Yu Changshun;Yuan Ruibo(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Technology,Shanghai 201620,China)
出处
《农业装备与车辆工程》
2022年第8期158-161,共4页
Agricultural Equipment & Vehicle Engineering
