Title :
Active fault tolerant control for maglev train against accelerometer failure
Author :
Zhang, Zhizhou ; Zhang, Lingling ; Long, Zhiqiang
Author_Institution :
Coll. of Mechaeronics Eng. & Autom., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
Considering accelerometer failure of single electromagnet suspension system of maglev train, a sensor-fault diagnosis system based on unscented Kalman filter is designed. According to the results of fault detection and diagnosis on line, a improved PID regulator designed off line with tracking differentiators is adopted to tolerate the accelerometer failure. The simulation indicates that the fault diagnosis system designed can detect and localize failures of multi-sensors exactly. In this paper, the effectiveness of the accelerometer-fault control system has been verified on the single electromagnet suspension model of maglev train.
Keywords :
Kalman filters; accelerometers; fault diagnosis; magnetic levitation; sensor fusion; three-term control; PID regulator; accelerometer failure; active fault tolerant control; electromagnet suspension system; fault diagnosis; maglev train; sensor-fault diagnosis system; unscented Kalman filter; Accelerometers; Control systems; Electromagnets; Fault detection; Fault diagnosis; Fault tolerance; Fault tolerant systems; Magnetic levitation; Redundancy; Sensor systems; PID; accelerometer failure; active fault tolerant control; tracking differentiator; unscented Kalman filter;
Conference_Titel :
Robotics and Biomimetics (ROBIO), 2009 IEEE International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4244-4774-9
Electronic_ISBN :
978-1-4244-4775-6
DOI :
10.1109/ROBIO.2009.5420863
