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An adaptive fuzzy regulation of the DC-bus voltage in wind energy conversion systems

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2 Author(s)
Azzouz, M.A. ; Electr. Power & Machines Dept., Cairo Univ., Giza, Egypt ; Elshafei, A.L.

This paper proposes a new voltage regulator of the DC-bus capacitor of a variable speed wind energy conversion system based on an adaptive fuzzy system. The change in the fuzzy rule base is done using a variable-structure direct adaptive control algorithm to achieve the pre-defined control objectives. This algorithm has two merits. First, it has a good performance in the training phase as it makes use of the initial rule base defined for the fuzzy logic controller. Second, it has a robust estimator since it depends on a variable structure technique. The adaptive nature of the new controller significantly reduces the rule base size and improves the performance.

Published in:

Control Applications (CCA), 2010 IEEE International Conference on

Date of Conference:

8-10 Sept. 2010