南京理工大学学报（自然科学版）2012，Vol.36Issue(1)：1-6,6.
存在干扰和数据包丢失的网络控制系统鲁棒H∞故障诊断
Robust H∞ Fault Diagnosis for Networked Control Systems with Interference and Data Packet Dropout
摘要
Abstract
Focusing on a class of networked control systems with unknown interference inputs and packet dropout in sensor data,the robust Hm state observer is designed to detect them when faults occur in the system. A model and the state observer are constructed for the system,and the observer error equation is kept equivalent to the discrete switched system. Based on Lyapunov stability theory, the sufficient condition of the observer being a robust HK state observer and the method to find the observer gain matrix are both given. In order to enhance the robustness and sensitivity, the threshold is selected with solving the minimization problem involving a linear matrix inequality constraint. An illustrative example is given to demonstrate the effectiveness of the proposed method.关键词
网络控制系统/数据包丢失/干扰输入/故障诊断/鲁棒性Key words
networked control systems/ data packet dropout/ interference inputs/ fault diagnosis/ robustness分类
信息技术与安全科学引用本文复制引用
张捷,薄煜明,吴盘龙..存在干扰和数据包丢失的网络控制系统鲁棒H∞故障诊断[J].南京理工大学学报（自然科学版）,2012,36(1):1-6,6.基金项目
国家自然科学基金(61104109) （61104109）
江苏省自然科学基金(BK2011703) （BK2011703）
