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Robust adaptive fuzzy controller with supervisory compensator for MEMS gyroscope sensor

Published online by Cambridge University Press:  10 February 2015

Yunmei Fang
Affiliation:
College of Mechanical and Electrical Engineering, Hohai University, Changzhou, 213022, P. R. China
Jian Zhou
Affiliation:
College of IOT Engineering, Hohai University, Changzhou, 213022, P. R. China
Juntao Fei*
Affiliation:
College of IOT Engineering, Hohai University, Changzhou, 213022, P. R. China
*
*Corresponding author. E-mail: jtfei@yahoo.com
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In this paper, a robust adaptive fuzzy controller is proposed to improve the robustness and position tracking of a MEMS gyroscope sensor. The proposed controller is designed as an indirect adaptive fuzzy controller with a supervisory compensator. It incorporates a fuzzy inference system with an adaptive controller in a unified Lyapunov framework, which can approximate and compensate for the unknown system dynamics and nonlinearities in the MEMS gyroscope. The parameters of the membership functions in the fuzzy controller can be adjusted online based on the Lyapunov method. Moreover, a supervisory controller is employed to guarantee the asymptotic stability of the closed-loop system and boundedness of the state variables in the MEMS gyroscope model. Numerical simulations demonstrate the proposed robust adaptive fuzzy controller has satisfactory tracking performance and robustness in the presence of external disturbances.

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Articles
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Copyright © Cambridge University Press 2015