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

fYear

2009

Firstpage

1356

Lastpage

1360

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ROBIO.2009.5420863

Filename

5420863