A Study on Emergency Control of Battery Energy Storage Systems for Primary Frequency Regulation after Unexpected Loss of Generation

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  • Kobayashi Taichi
    School of Engineering, Tokyo Institute of Technology
  • Kawabe Kenichi
    School of Engineering, Tokyo Institute of Technology
  • Tokumitsu Keita
    School of Engineering, Tokyo Institute of Technology Central Research Institute of Electric Power Industry

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Other Title
  • 電源脱落時における周波数安定性向上のための蓄電池の緊急制御手法の検討
  • 電源脱落時における周波数安定性向上のための蓄電池の緊急制御手法の検討 : 電圧制御型変換器や周波数変化率情報の適用効果
  • デンゲン ダツラクジ ニ オケル シュウハスウ アンテイセイ コウジョウ ノ タメ ノ チクデンチ ノ キンキュウ セイギョ シュホウ ノ ケントウ : デンアツ セイギョガタ ヘンカンキ ヤ シュウハスウ ヘンカリツ ジョウホウ ノ テキヨウ コウカ
  • —Effect of Applying Voltage-Controlled Converters and Rate of Change of Frequency Data—
  • —電圧制御型変換器や周波数変化率情報の適用効果—

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Abstract

<p>In this study, we investigate two kinds of control modes of battery energy storage systems (BESSs) to improve the short-term frequency stability after a sudden loss of generation. One is a current control mode that directly controls current output, and the other is a voltage control mode that controls the frequency of the voltage output. The methods are verified by numerical simulation in a multi-machine power system model considering transmission network. Numerical examples show that the voltage control mode is more effective than the current control mode for suppressing frequency drop and the rate of change of frequency (RoCoF) on condition that RoCoF data is unavailable for the control of the BESSs. It is also shown that the use of RoCoF data makes the current control mode effective for the alleviation of frequency drop and RoCoF as well as the voltage control mode.</p>

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