Robust dynamic output feedback pitch control for flexible wind turbines

H. M. Hassan, W. A. Farag, M. S. Saad, Abdel Latif Elshafei

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

This paper proposes a dynamic output feedback decentralized pitch controller for flexible wind turbines. Both collective and cyclic (individual) pitch controllers are considered. The collective pitch controller aims at improving the rotor speed regulation and maximizing the harvested electrical power, without violating the pitch actuator limits. On the other hand, the cyclic (individual) pitch controller targets mitigating the fatigue relevant loads caused by aerodynamic forces. Both controllers are designed based on a polytopic model. The design constraints include (H problem, H 2 problem and pole clustering). Initially, an LMI-based feasible controller is designed, and then a final feasible controller is reached via local optimization iterative algorithm. The performance of the proposed controller is compared to a gain scheduled PI controller. The results are validated by testing on a nonlinear flexible multi-MW wind turbine model against a realistic extreme turbulence wind profile.

Original languageEnglish (US)
Title of host publication2012 IEEE Energytech, Energytech 2012
DOIs
StatePublished - 2012
Event2012 IEEE Energytech, Energytech 2012 - Cleveland, OH, United States
Duration: May 29 2012May 31 2012

Publication series

Name2012 IEEE Energytech, Energytech 2012

Conference

Conference2012 IEEE Energytech, Energytech 2012
Country/TerritoryUnited States
CityCleveland, OH
Period5/29/125/31/12

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Fuel Technology

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