Unknown input observer for LPV systems with parameter varying output equation

摘要

This paper addresses the design of Unknown Input Observer (UIO) for Linear Parameter Varying (LPV). It is shown that even if the rank conditions ensuring the existence of an UIO are satisfied, the design may fail, due to the polytopic representation of the LPV system. In this paper a new design approach is proposed via a modified UIO for a class of LPV systems with parameter dependent output equation. It is based on parameter algebraic matrix equations and LMI conditions. Examples are provided in order to illustrate the performances of the proposed approach.