液压与气动2025，Vol.49Issue(11)：9-18,10.DOI:10.11832/j.issn.1000-4858.2025.11.002
考虑部件退化下的控制系统动态性能补偿方法
Dynamic Performance Compensation Method of Control Systems Considering Performance Degradation of Components
摘要
Abstract
To address the dynamic performance degradation of system caused by component's performance deterioration in control systems,we propose a design method for system's transfer function modeling and a compensation controller based on degradation state estimation.Firstly,a nonlinear Wiener process incorporating measurement errors is employed to describe the relationship between component measurements and the true degradation state.The Kalman filtering method is then applied to estimate the true degradation state.Secondly,the estimated degradation state is integrated into the control system model.Targeting the output of the non-degraded system as the control objective,we derive the transfer function of a compensator to counteract the impact of component degradation on system dynamic performance.Finally,the validation based on a pump-controlled electro-hydraulic servo system demonstrates that after compensation,the rise time,settling time and peak time of the degraded system are increased by only 1.79％,2.30％and 2.15％,respectively,compared to the dynamic performance indices of the non-degraded system,while the overshoot is reduced by only 1.15％.This method effectively enhances the dynamic performance of systems experiencing component degradation,enabling the step response output of the degraded system to accurately track that of the non-degraded system.关键词
传递函数模型/性能退化/Kalman滤波/补偿控制器设计Key words
transfer function model/performance degradation/Kalman filter/compensatory controller design分类
机械工程引用本文复制引用
张惊蛰,张鑫,韩镇..考虑部件退化下的控制系统动态性能补偿方法[J].液压与气动,2025,49(11):9-18,10.基金项目
国家重点研发计划子课题(2022YFB3403003) （2022YFB3403003）
