燕山大学学报2024，Vol.48Issue(2)：120-128,156,10.DOI:10.3969/j.issn.1007-791X.2024.02.003
桥式起重机系统的传感故障容错控制研究
Research on sensor fault tolerant control for bridge crane system
摘要
Abstract
In this paper,an adaptive faulttolerant control algorithm based on observer is designed for the fault of trolley position sensor in underdrive bridge crane system.Considering the trolley position sensor occurs an unknown fault,in order to achieve the fixed point control goal under the stability of the system,an observer based on K filter is proposed to eliminate the influence of unknown sensor faults,and Nussbaum gain is introduced to reduce the influence of unknown symbols of faults.The adaptive faulttolerant controller is composed of the above two parts so that the bridge crane can achieve the control target even under sensor faults.At the same time,based on Lyapunov stability theory,the stability of underdrive bridge crane system is proved by backstepping method.Finally,the feasibility of the control scheme is verified by using MATLAB.关键词
欠驱动桥式起重机/传感器故障/自适应容错控制/K滤波器Key words
underdrive bridge crane/sensor fault/adaptive fault tolerant control/K filter分类
信息技术与安全科学引用本文复制引用
杨亚娜,霍俊红,产佳..桥式起重机系统的传感故障容错控制研究[J].燕山大学学报,2024,48(2):120-128,156,10.基金项目
国家自然科学基金资助项目(61933009) （61933009）
