The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Advanced Maximum Power Point Tracking Method for the Series Operation Strategy of Grid-Connected Small Wind Turbines

계통연계형 소형풍력발전 시스템의 직렬운전을 고려한 개선된 MPPT 방법

  • Kim, Yong-Hyu (Automotive Parts Technology Support Center, Busan Techno-Park) ;
  • Heo, Hong-Jun (Dept. of Electrical Eng., Pusan National University) ;
  • Kim, Jang-Mok (Dept. of Electrical Eng., Pusan National University)
  • Received : 2016.05.30
  • Accepted : 2016.10.11
  • Published : 2016.12.20
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Abstract

Operating wind turbine generators at maximum power point requires maximum power point tracking (MPPT) control methods. However, conventional methods cannot track the appropriate maximum power point in situations involving wind turbine systems based on a series operation strategy. These systems comprise one or more local maximum power points, and conventional methods can detect only one local maximum power point closed by a current operation point. This study proposes an advanced MPPT method for the series operation strategy of a small, grid-connected wind turbine system. In determining the appropriate maximum point, operations at certain local maximum power points are analyzed. The results show one appropriate point, which is tracked by the proposed MPPT method. The effectiveness of the proposed method is verified by the experimental results.

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References

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