Skip to main content
Article
A Disturbance Rejection-Based Control System Design for Z-Axis Vibratory Rate Gyroscopes
Proceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering
  • Q. Zheng, Cleveland State University
  • L. Dong, Cleveland State University
Document Type
Article
Publication Date
7-3-2008
Abstract

The current paper presents a new control strategy known as active disturbance rejection control (ADRC) for controlling the sense axis of a vibrational microelectromechanical system (MEMS) gyroscope and detecting time-varying rotation rates. In the ADRC framework, the generalized disturbance, which is referred to as the combination of the internal dynamics and external disturbances, is estimated and compensated for in real time. It is assumed that the drive axis outputs an ideal sinusoidal signal. A force-to-rebalance mode of operation is applied to the sense axis of the gyroscope. Under this mode, the output of the sense axis is continuously monitored and driven to zero by ADRC and the rotation rate is estimated by employing the demodulation technique. Simulation results and performance analysis demonstrate the effectiveness and robustness of the ADRC against parameter variations and noises. © IMechE 2008.

DOI
10.1243/09596518JSCE428
Citation Information
Q. Zheng and L. Dong. "A Disturbance Rejection-Based Control System Design for Z-Axis Vibratory Rate Gyroscopes" Proceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering Vol. 222 Iss. 1 (2008) p. 23 - 30 ISSN: 09596518
Available at: http://works.bepress.com/lili-dong/1/