Title: On the performance of a fuzzy variable structure satellite attitude controller under sensor and actuator uncertainties

Authors: Bilgehan Erkal

Addresses: Department of Electrical and Electronics Engineering, Karabuk University, Balıklarkayası Mevkii, 78050, Karabuk, Turkey

Abstract: Controlling the attitude of a satellite with high accuracy and stability under both sensor and actuator delay is a great problem. It is possible to correct for errors, but a robust controller is more preferable. In this study, the attitude of a 3-DoF satellite model incorporating uncertainties (delays in handling both sensors and actuators) is controlled using a suitably designed integral fuzzy variable structure (IFVSC) controller. The attitude control accuracy of the IFVSC is evaluated and compared to other reference controllers (one is a PID controller and the other is a loop shaping controller). IFVSC is found to perform well with Td = 0.2 s sensor and actuator data delay.

Keywords: fuzzy variable structure control; loop shaping controller; satellite attitude control; sensor data delay; actuator misplacement.

DOI: 10.1504/IJSISE.2020.113542

International Journal of Signal and Imaging Systems Engineering, 2020 Vol.12 No.1/2, pp.40 - 46

Received: 30 Jan 2012
Accepted: 11 Apr 2012

Published online: 08 Mar 2021 *

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