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Sliding Mode Control Strategy for Wind Turbine Power Maximization

By Oscar Barambones


The efficiency of the wind power conversions systems can be greatly improved using an appropriate control algorithm. In this work, a sliding mode control for variable speed wind turbine that incorporates a doubly fed induction generator is described. The electrical system incorporates a wound rotor induction machine with back-to-back three phase power converter bridges between its rotor and the grid. In the presented design the so-called vector control theory is applied, in order to simplify the electrical equations. The proposed control scheme uses stator flux-oriented vector control for the rotor side converter bridge control and grid voltage vector control for the grid side converter bridge control. The stability analysis of the proposed sliding mode controller under disturbances and parameter uncertainties is provided using the Lyapunov stability theory. Finally simulated results show, on the one hand, that the proposed controller provides high-performance dynamic characteristics, and on the other hand, that this scheme is robust with respect to the uncertainties that usually appear in the real systems

Topics: wind power, variable structure control, nonlinear system, modeling and simulation, Chemical technology, TP1-1185, Technology, T, DOAJ:Chemical Technology, DOAJ:Technology and Engineering
Publisher: MDPI AG
Year: 2012
DOI identifier: 10.3390/en5072310
OAI identifier:
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