Sensor active fault tolerant control of maglev suspension system based on tracking-differentiator

Based on tracking-differentiator, a new strategy of fault diagnosis and active fault tolerant control for sensor fault of maglev train was proposed. The model of maglev suspension system was established first, and the current control loop was introduced to degrade the system, optimal control algorithm then applied to design control code. For the sensor fault, Based on tracking-differentiator, fault diagnosis and active fault tolerant control strategy was devised to make the system stronger. Simulation indicate that the strategy is effective on maglev train.