Active Fault tolerant model predictive control with Sliding mode observer

This paper presents an on-line Model Predictive control scheme for Fault Tolerant Control (FTC) on Satellite Attitude control system. An active fault-tolerant control scheme based on model predictive control (MPC) and fault detection and isolation (FDI) is proposed. The FDI module using a sliding mode observer algorithm provides simultaneous effectiveness factor and state estimation, which are used to modify the MPC formulation such as internal model to accommodate partial actuator failures. The MPC scheme uses the effectiveness Factor of the actuators to redistribute the control signal to the remaining actuators when a fault happens. The paper indicates how concepts arising from the fault detection and fault-tolerant design methods can be incorporated in an MPC framework and the advantages that can be gained by using MPC in this context.

کلیدواژه ها:

active fault tolerant MPC ، Sliding mode observer ، control effectiveness Factor ، Satellite Attitude control system