A Robust Fault Tolerant Control Approach for LTI Systems with Actuator and Sensor Faults
In this paper, we study a robust fault-tolerant control (FTC) problem for linear systems with time varying actuator and sensor faults and propose an parameter-dependent solution by using L2 gain optimization techniques. Using estimated faults from a fault detection and isolation (FDI) scheme, parameter-dependent robust FTC gain will be scheduled by fault magnitude to stabilize and optimize the faulty system under all possible fault scenarios. The synthesis condition of such a FTC control law will be formulated as linear matrix inequalities (LMIs) and can be solved efficiently by semi-definite programming techniques. A numerical example is used to demonstrate the proposed fault-tolerant control approach for a simple faulty systems with different fault levels and fault estimation error bounds.
Fault tolerant control actuator and sensor faults gain-scheduling control L2 gain optimization LMI
Xuejing Cai Fen Wu
Dept. of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
890-895
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）