UDE-based robust control of variable-speed wind turbines

Beibei Ren, Qing Chang Zhong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

23 Scopus citations


In this paper, the UDE (uncertainty and disturbance estimator)-based robust control is investigated for a two-bladed horizontal axis variable speed wind turbine in the presence of model uncertainties and external disturbances. The UDE algorithm is based on the assumption that a signal can be approximated and estimated by using a filter with the appropriate bandwidth. The most important features of the approach are that (i) the employment of UDE makes it possible to estimate the lumped uncertain term which is non-singular with respect to the system state !r and bounded with respect to the time t; and (ii) it does not require any knowledge (e.g., bounds) about the uncertainties and disturbances, except the information about the bandwidth, during the design process. The asymptotic stability of the closed-loop system is rigorously established and the rotor speed asymptotically tracks a reference speed that maximizes the energy captured by adjusting the armature current of the DC generator. The effectiveness of the proposed approach is demonstrated through simulation studies.

Original languageEnglish
Title of host publicationProceedings, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society
Number of pages6
StatePublished - 2013
Event39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013 - Vienna, Austria
Duration: Nov 10 2013Nov 14 2013

Publication series

NameIECON Proceedings (Industrial Electronics Conference)


Conference39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013


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