Fault Detection, Isolation and Estimation for Linear Systems with Partial Disturbance Decoupling*

摘要

Fault detection, isolation and estimation problems for linear systems with partial disturbance decoupling are studied in this article. By using singular value decomposition technique and geometric approach, the detailed design and implementation of partial disturbance decoupling are presented. On this basis, observers are designed, whose most important character is that each observer is affected by only one particular fault. By using Laplace transform, fault estimation strategy is addressed. A simulation example is presented to show the validity and effectiveness of the proposed approach.