Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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SDRE Based Near Optimal Controller Design of Permanent Magnet Synchronous Generator for Variable-Speed Wind Turbine System

가변속 풍력 발전용 영구자석형 동기발전기의 SDRE 기반 준최적 비선형 제어기 설계

  • Park, Hyung-Moo (Division of Electronics and Electrical Engineering, Dongguk University-Seoul) ;
  • Choi, Han Ho (Division of Electronics and Electrical Engineering, Dongguk University-Seoul)
  • 박형무 (동국대학교 전자전기공학부) ;
  • 최한호 (동국대학교 전자전기공학부)
  • Received : 2014.05.28
  • Accepted : 2014.12.09
  • Published : 2015.01.01
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Abstract

In this paper, we propose a near optimal controller design method for permanent magnet synchronous generators (PMSGs) of MW-class direct-driven wind turbine systems based on SDRE (State Dependent Riccati Equation) approach. Using the solution matrix of an SDRE, we parameterize the optimal controller gain. We present a simple algorithm to compute the near optimal controller gain. The proposed optimal controller can enable PMSGs to precisely track the reference speed determined by the MPPT algorithm. Finally, numerical simulation results are given to verify the effectiveness of the proposed optimal controller.

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References

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