Robust H∞ Fault-Tolerant Control for Uncertain Linear System Based on Pole Assignment

For a class of uncertain linear systems with uncertainties which do not satisfy matching conditions, the method of robust fault-tolerant controller designing against actuator faults is presented. Based on a more practical and general faults model of actuator, sufficient condition about robust fault-tolerant control is obtained in terms of theories of pole assignment and robust control. The design of optimal fault-tolerant controllers can be achieved by means of linear matrix inequality (LMI), which makes outputs of system to meet dynamic characteristics required and have optimal performance. Finally, a simulation example illustrates the effectiveness of the method in the paper.