Periodic wind disturbance rejection using robust individual pitch control

Yuan Yuan; Xu Chen; J. Tang

doi:10.1117/12.2296771

27 March 2018 Periodic wind disturbance rejection using robust individual pitch control

Yuan Yuan, Xu Chen, J. Tang

Proceedings Volume 10601, Smart Materials and Nondestructive Evaluation for Energy Systems IV; 106010G (2018) https://doi.org/10.1117/12.2296771
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2018, Denver, Colorado, United States

Abstract

A robust individual pitch control strategy is presented to deal with periodic load disturbances on wind turbines under operating point variation. The asymmetric loads are mainly caused by the tower shadow and wind shear effects. Multi-blade coordinate (MBC) transformation is utilized to model the turbine dynamics under various operating points. The coupling dynamics of the multi-input multi-output (MIMO) system are considered to reveal high harmonic frequency peak reduction. The stability and robustness performance of the system under uncertainties are guaranteed by robust control design. The performance of the synthesized controller is compared with a collective controller and a PI individual controller. The results show significant load mitigation in periodic frequencies.

Citation Download Citation

Yuan Yuan, Xu Chen, and J. Tang "Periodic wind disturbance rejection using robust individual pitch control", Proc. SPIE 10601, Smart Materials and Nondestructive Evaluation for Energy Systems IV, 106010G (27 March 2018); https://doi.org/10.1117/12.2296771

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