Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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A Self-Excited Induction Generator with Simple Voltage Regulation Suitable for Wind Energy

  • Ahmed Tarek (The Graduate School of Science and Engineering, Yamaguchi University) ;
  • Nishida Katsumi (Division of Electrical and Electronics Eng, Yamaguchi Univ.) ;
  • Nakaoka Mutsuo (Division of Electrical and Electronics Eng, Yamaguchi Univ.)
  • Published : 2004.10.01
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Abstract

In this paper, a three-phase induction machine-based wind power generation scheme is proposed. This scheme uses a low-cost diode bridge rectifier circuit connected to an induction machine via an ac load voltage regulator (AC-LVR) to regulate dc power transfer. The AC-LVR is used to regulate the DC load voltage of the diode bridge rectifier circuit which is connected to the three-phase self-excited induction generator (SEIG). The excitation of the three-phase SEIG is supplied by the static VAR compensator (SVC). This simple method for obtaining a full variable-speed wind turbine system by applying a back-to-back power converter to a wound rotor induction generator is useful for wind power generation at widely varying speeds. The dynamic performance responses and the experimental results of connecting a 5kW 220V three-phase SEIG directly to a diode bridge rectifier are presented for various loads. Moreover, the steady-state simulated and experimental results of the PI closed-loop feedback voltage regulation scheme prove the practical effectiveness of these simple methods for use with a wind turbine system.

Keywords

References

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