Robust Optimal Power Grid Frequency Regulation Support Using Grid Forming Converters

カテゴリ: 部門大会

論文No: 6

グループ名: 【B】令和6年電気学会電力・エネルギー部門大会

発行日: 2024/08/23

タイトル(英語): Robust Optimal Power Grid Frequency Regulation Support Using Grid Forming Converters

著者名: REHIMI Sharara（Nagoya University），Bevrani Hassan（University of Kurdistan），Urabe Chiyori T（Nagoya University），Kato Takeyoshi（Nagoya University）

著者名(英語): Rehimi (Nagoya University), Bevrani (University of Kurdistan), Urabe (Nagoya University), Kato (Nagoya University)

キーワード: ハリトーノフ理論|Kharitonov theory|optimal control|frequency control|robust control|Bayesian optimization

要約(英語): In order to enhance frequency and active power control performance, this research proposes a decentralized approach for power grid frequency regulation support using grid-forming (GFM) converters. The proposed approach employs the Kharitonov method to design a robust proportional-integral (PI) controller in the outer control loop of a grid-connected GFM converter. The PI controller is made expressly to deal with the uncertainties and disruptions that are common in power grid operations. The PI controller successfully mitigates system risks by demonstrating strong stability through the application of the Kharitonov approach. Additionally, depending on the expected system performance, this work uses Bayesian optimization to choose the optimal parameters from the robust Kharitonov solutions family. In decentralized frequency regulation, the Kharitonov approach combined with Bayesian optimization presents a viable framework for robust-optimal parameters system selection. The efficacy of the proposed method in attaining robust optimal frequency regulation support in a microgrid with a grid-connected GFM converter is demonstrated.

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