Integrated Design of Feedback Control and Fault Detection Based on Reduced-Order Observer

This paper investigates an integrated design framework for feedback control and fault detection based on a reduced-order observer. Firstly, all stabilizing controllers can be described as a reduced-order observer, which is the joint form of state, output and residual feedback, based on well-known Youla parameterization of all stabilizing controllers. Furthermore, an integrated design framework for feedback control and fault detection is proposed, the advantages of which are low online computation, convenient fault detection, etc. Finally, the simulation of the Heating, Ventilation, and Air conditioning (HVAC) system is adopted to demonstrate the effectiveness and superiority of the proposed design framework.