线性参数变化系统的鲁棒故障估计

Robust Fault Estimation of Linear Parameter Varying Systems

针对仿射参数变化系统,研究了鲁棒H∞故障估计问题。基于增益调度的思想,提出了一种鲁棒H∞故障估计器设计方法,该方法所设计的故障估计器与对象具有相同的参数依赖性,而且可以通过线性矩阵不等式进行求解。文中通过实例展示了设计的全过程,仿真结果表明本文所给出的方法能够有效地处理一类参数变化系统的故障估计问题。

The robust H∞ fault estimation problem for a time - varying parameters has been studied in this paper. class of LPV plants which depend affinely on a vector of Based on the gain scheduling techniques, a new method for the design of a robust H∞ fault estimator is developed. The resulting LPV estimator has the same parameter dependence as the plants, and can be characterized via a set of linear matrix inequalities （LMIs）. To demonstrate the proposed method, a numerical example is considered. Simulation results show that the designed LPV fault estimator is effective for a class of LPV plants.