基于H_-/H_∞优化的风力发电机组传感器故障检测  

Fault Detection of Wind Turbine Sensor Based on H_-/H_∞ Observer Optimization

作　　者：李东亮[1] 邓露[1] 王磊[1] 文传博[1] 

机构地区：[1]上海电机学院电气学院,上海2001306

出　　处：《上海电机学院学报》2016年第2期94-98,104,共6页Journal of Shanghai Dianji University

摘　　要：建立了风力发电机组在干扰和传感器故障条件下的状态模型,并考虑了系统对故障的灵敏度和对干扰的鲁棒性,分析了H-/H∞优化方法下观测器增益的存在条件,结合线性矩阵不等式(LMI)方法与迭代算法,构造了一种最优故障检测系统。仿真结果表明,所设计的观测器对故障具有高灵敏度,同时又对干扰具有强鲁棒性,能有效地检测出传感器故障。This paper proposes a state space model of wind turbine disturbance under the condition of interference and sensor fault.The model takes into account robustness to disturbances and sensitivity to fault.The existence conditions of observer gain when using the H-/H∞optimization are analyzed,and the linear matrix inequality(LMI)method and iterative algorithm are used.The constructed detecting system is optimal.Simulation results show that the designed observer is highly sensitive to fault and robust against disturbances,and therefore can effectively detect the sensor fault.

关 键 词：风力发电机组 传感器 线性矩阵不等式 故障检测 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TP277.3[自动化与计算机技术—控制科学与工程]