Improvement Effect of Power System Stability by Applying FRT and DVS Function to PV

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  • Taoka Hisao
    Graduate School of Electrical and Electronics Engineering, University of Fukui
  • Onaka Keisuke
    Graduate School of Electrical and Electronics Engineering, University of Fukui
  • Kimura Ryo
    Graduate School of Electrical and Electronics Engineering, University of Fukui
  • Sano Motoki
    Graduate School of Electrical and Electronics Engineering, University of Fukui
  • Tanikawa Tomoya
    Engineering Research & Development Center, Hokuriku Electric Power Company

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  • PVへのFRT，DVS機能の付与による系統安定度向上効果
  • PV エ ノ FRT,DVS キノウ ノ フヨ ニ ヨル ケイトウ アンテイド コウジョウ コウカ

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Abstract

The introduction of photovoltaic generation (PV) is expanding and, in accordance with that, it is concerned that power system stability deteriorates by PV without a system stabilizing function. Therefore, PV is required to have system stabilizing functions such as fault ride through (FRT) and dynamic voltage support (DVS) function. It is important to evaluate an influence of PV with these functions on power system stability. In this paper, influence of applying these functions to PV on transient stability and voltage stability is evaluated. As evaluation methods, not only simulation method but also power-angle curve (P-δ curve) of synchronous generator and torque speed curve of induction motor are used. As stated above, improvement effect on power system stability of FRT and DVS function by multiple evaluation is verified.

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