Observer Backstepping Control for Variable Speed Wind Turbine

Roberto Galeazzi, Mikkel Peter Sidoroff Gryning, Mogens Blanke

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


This paper presents an observer backstepping controller as feasible solution to variable speed control of wind turbines to maximize wind power capture when operating between cut-in and rated wind speeds. The wind turbine is modeled as a two-mass drive-train system controlled by the generator torque. The nonlinear controller aims at regulating the generator torque such that an optimal tip-speed ratio can be obtained. Simply relying on the measured rotor angular velocity the proposed observer backstepping controller guarantees global asymptotic tracking of the desired trajectory while maintaining a globally uniformly ultimately bounded torsional angle. The proposed controller shows convincing performance when simulated in closed loop within a stochastic environment.
Original languageEnglish
Title of host publicationProceedings of the 2013 American Control Conference
Number of pages8
Publication date2013
Pages1036 - 1043
ISBN (Print)978-1-4799-0177-7
Publication statusPublished - 2013
Event2013 American Control Conference - Washington, United States
Duration: 17 Jun 201319 Jun 2013


Conference2013 American Control Conference
Country/TerritoryUnited States
Internet address


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