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Characteristics on Stand-alone Operation of a Doubly-fed Induction Generator Applied to Adjustable Speed Gas Engine Cogeneration System

  • Daido, Tetsuji (Graduate School of Engineering, Osaka University) ;
  • Miura, Yushi (Graduate School of Engineering, Osaka University) ;
  • Ise, Toshifumi (Graduate School of Engineering, Osaka University) ;
  • Sato, Yuki (Energy Technology Laboratory, Osaka Gas Co., Ltd.)
  • 투고 : 2013.03.14
  • 발행 : 2013.09.20

초록

An application of doubly-fed induction generator (DFIG), which is one of adjustable speed generators, to a gas engine cogeneration system has been investigated. To operate during a blackout as an emergency power supply is one of important roles for the gas engine cogeneration system. However, the DFIG requires initial excitation for startup during a blackout because the DFIG has no excitation source. In this paper, we propose the "blackout start" as a new excitation method to generate a rated voltage at the primary side during a blackout. In addition, a stand-alone operation following a blackout has been investigated by using experimental setup with a real gas engine. Power flows in the generating set with the DFIG at the stand-alone operation have been investigated experimentally. Experimental investigation of the power flow suggests that the generating set with DFIG has optimal speed in minimizing whole system losses.

키워드

참고문헌

  1. J. Lee, S. Lee, and S. Sul, "Variable-speed engine generator with supercapacitor: isolated power generation system and fuel efficiency," IEEE Trans. Ind. Appl., Vol. 45, No. 6, pp. 2130-2135, Nov./Dec. 2009. https://doi.org/10.1109/TIA.2009.2031891
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  4. H. Ichita, R. Takahashi, T. Murata, and J. Tamura, "A study on the economic conditions of wind turbine generation system with doubly fed synchronous generator," IEEJ Trans. Industry Applications, Vol. 129, No. 11, pp. 1038-1047, Nov. 2009(in Japanese). https://doi.org/10.1541/ieejias.129.1038
  5. T. Daido, Y. Miura, T. Ise, and Y. Sato, "A study on a start-up method during a blackout of a doubly-fed induction generator applied to gas engine cogeneration system," 8th Int. Conf. Power Electronics -ECCE Asia, pp.2051-2058, 2011.
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피인용 문헌

  1. Control Design of the Brushless Doubly-Fed Machines for Stand-Alone VSCF Ship Shaft Generator Systems vol.16, pp.1, 2016, https://doi.org/10.6113/JPE.2016.16.1.259