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This paper initial on a fast frequency and voltage regulation method for flywheel energy storage system based on Amplitude-Phase-Locked-Loop (APLL) is initially discussed. In the proposed method, a virtual power support strategy is designed based on the frequency difference signal (df/dt) and voltage difference signal (dV/dt) detected by APLL. The superiority of the APLL-based flywheel energy storage system in improving the frequency and voltage dynamic characteristics of the grid is verified by operating simulations with load disturbances and three-phase ground faults.

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Fast Frequency and Voltage Support for Flywheel Energy Storage System Based on Amplitude-Phase-Locked-Loop

  • 会议论文

  • 发表日期：

    2026年

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  • Zongyuan Xie,
  • Runsheng Zheng,
  • Lei Shang,
  • Xuzhu Dong

摘要

This paper initial on a fast frequency and voltage regulation method for flywheel energy storage system based on Amplitude-Phase-Locked-Loop (APLL) is initially discussed. In the proposed method, a virtual power support strategy is designed based on the frequency difference signal (df/dt) and voltage difference signal (dV/dt) detected by APLL. The superiority of the APLL-based flywheel energy storage system in improving the frequency and voltage dynamic characteristics of the grid is verified by operating simulations with load disturbances and three-phase ground faults.