Fault-Tolerant Control of Wind Turbine System Using Linear Parameter-Varying Model

Shanzhi Li, Abdel Aitouche, Nicolai Christov and Jian Zhang

Mathematical Problems in Engineering, 2022, vol. 2022, 1-10

Abstract: This paper proposes a fault-tolerant control scheme for WTS with actuator faults and disturbance, based on a linear parameter-varying (LPV) model. First, a LPV model of WTS subject to disturbances and actuator fault is obtained. Using this model, unknown input observer (UIO) is developed to estimate the WTS fault and state variables. Then, an integral tracking controller for LPV systems is developed. Based on the Lyapunov and H∞ theory, the convergence of UIO and the stability of the closed-loop system are analyzed and ensured. The proposed fault-tolerant controller is applied to a wind turbine system with pitch and torque actuator faults, and its performances are compared with those of controller without integral action.

Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:1290639

DOI: 10.1155/2022/1290639

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