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

Tetsuji Daido; Yushi Miura; Toshifumi Ise; Yuki Sato

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

Vol. 13, No. 5, pp. 841-853, Sep. 2013

10.6113/JPE.2013.13.5.841

Blackout start

Doubly-fed induction generator

Gas engine cogeneration system

Power flow

Stand-alone operation

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Abstract

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.

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Cite this article

[IEEE Style]

T. Daido, Y. Miura, T. Ise, Y. Sato, "Characteristics on Stand-alone Operation of a Doubly-fed Induction Generator Applied to Adjustable Speed Gas Engine Cogeneration System," Journal of Power Electronics, vol. 13, no. 5, pp. 841-853, 2013. DOI: 10.6113/JPE.2013.13.5.841.

[ACM Style]

Tetsuji Daido, Yushi Miura, Toshifumi Ise, and Yuki Sato. 2013. Characteristics on Stand-alone Operation of a Doubly-fed Induction Generator Applied to Adjustable Speed Gas Engine Cogeneration System. Journal of Power Electronics, 13, 5, (2013), 841-853. DOI: 10.6113/JPE.2013.13.5.841.