Energies 2014, 7(3), 1750-1769; doi:10.3390/en7031750

H Fault Tolerant Control of WECS Based on the PWA Model

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Received: 26 January 2014; in revised form: 13 March 2014 / Accepted: 19 March 2014 / Published: 24 March 2014
(This article belongs to the Special Issue Wind Turbines 2014)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The main contribution of this paper is the development of H∞ fault tolerant control for a wind energy conversion system (WECS) based on the stochastic piecewise affine (PWA) model. In this paper the normal and fault stochastic PWA models for WECS including multiple working points at different wind speeds are established. A reliable piecewise linear quadratic regulator state feedback is designed for the fault tolerant actuator and sensor. A sufficient condition for the existence of the passive fault tolerant controller is derived based on some linear matrix inequalities (LMIs). It is shown that the H∞ fault tolerant controller of WECS can control the wind turbine exposed to multiple simultaneous sensor faults or actuator faults; that is, the reliability of wind turbines can be improved.
Keywords: H∞ fault tolerant control; piecewise affine; wind energy conversion system; H∞ robust control
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MDPI and ACS Style

Shi, Y.-T.; Kou, Q.; Sun, D.-H.; Li, Z.-X.; Qiao, S.-J.; Hou, Y.-J. H Fault Tolerant Control of WECS Based on the PWA Model. Energies 2014, 7, 1750-1769.

AMA Style

Shi Y-T, Kou Q, Sun D-H, Li Z-X, Qiao S-J, Hou Y-J. H Fault Tolerant Control of WECS Based on the PWA Model. Energies. 2014; 7(3):1750-1769.

Chicago/Turabian Style

Shi, Yun-Tao; Kou, Qi; Sun, De-Hui; Li, Zheng-Xi; Qiao, Shu-Juan; Hou, Yan-Jiao. 2014. "H Fault Tolerant Control of WECS Based on the PWA Model." Energies 7, no. 3: 1750-1769.

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