Adjustable Dimension Fault Estimation Observer Design of Interconnected Systems

An adjustable dimensional fault estimation observer approach is devised for interconnected systems. First, an adjustable dimensional fault estimation observer is designed by using subsystem interconnection information. Second, the observer gain matrices are calculated based on H-infinity performance and regional pole configurations. Third, the observer order could be chosen in a specific scope to balance computational complexity and accuracy. Finally, two simulations prove the feasibility of the presented method.