Controller Design for Blade Load Reduction Using Synthetic Jets

Mohsen Soltani, Mahmood Mirzaei

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


As the size of modern wind turbines increase, the blades become longer and more flexible. Consequently, fatigue loads due to the structural vibration become more important and turn to be a constraint on enlarging the size of the new turbines. Thus, it becomes more necessary to use nontraditional actuators to damp structural vibration. This paper, presents the design of a control system that acts on blade synthetic jets to reduce and damp the vibration of the desired blade modes. The design of model-based estimators is addressed. These estimators use the measurements of several accelerometers and strain gauges along the blade and the tower to estimate the contribution of each blade modal state to the vibration of the tower and the blades. The synthetic jet actuators are then controlled, such that the desired vibration modes are damped effectively. Designed estimator and controller are implemented on a FEM-based wind turbine simulation code. The results show significant damping of blade vibration.
Original languageEnglish
Title of host publicationProceedings of the American Control Conference 2014
Publication date2014
ISBN (Print)978-1-4799-3274-0
Publication statusPublished - 2014
Event2014 American Control Conference - Hilton Portland & Executive Tower , Portland, United States
Duration: 4 Jun 20146 Jun 2014


Conference2014 American Control Conference
LocationHilton Portland & Executive Tower
Country/TerritoryUnited States


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