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<p>In flywheel energy storage system (FESS), external impulsive disturbances are unavoidable and can easily induce excessive vibrations, posing a serious threat to operational safety. Active disturbance rejection control (ADRC) has been widely recognized as an effective disturbance suppression approach and exhibits favorable performance in handling system uncertainties. However, its performance degrades when confronted with sudden, high-intensity impulsive disturbances. To address this issue, this paper proposes an enhanced model-assisted ADRC (EMADRC) strategy. By constructing a model-assisted extended state observer (MESO), the proposed method exploits known system parameters to improve the observer gain design, enhancing the accuracy of disturbance estimation. Furthermore, an integral sliding mode control (ISMC) law with strong robustness is incorporated to further strengthen the capability of the system to suppress impulsive disturbances. Experimental results demonstrate that the EMADRC significantly improves the impulsive resistance of the FESS, exhibiting excellent robustness and substantial engineering applicability.</p>

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Enhanced model-assisted ADRC combined with integral sliding mode law for hybrid magnetic bearings in FESS

  • 期刊论文

  • 发表日期：

    2026年7月9日

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  • Kaiyu Shan,
  • Ke Wang,
  • Wei Zhang,
  • Yuxiang Zhu,
  • Yadong Hu,
  • Lu Zhao,
  • Jinquan Zhu,
  • Wei Xu,
  • Yaohua Li

摘要

In flywheel energy storage system (FESS), external impulsive disturbances are unavoidable and can easily induce excessive vibrations, posing a serious threat to operational safety. Active disturbance rejection control (ADRC) has been widely recognized as an effective disturbance suppression approach and exhibits favorable performance in handling system uncertainties. However, its performance degrades when confronted with sudden, high-intensity impulsive disturbances. To address this issue, this paper proposes an enhanced model-assisted ADRC (EMADRC) strategy. By constructing a model-assisted extended state observer (MESO), the proposed method exploits known system parameters to improve the observer gain design, enhancing the accuracy of disturbance estimation. Furthermore, an integral sliding mode control (ISMC) law with strong robustness is incorporated to further strengthen the capability of the system to suppress impulsive disturbances. Experimental results demonstrate that the EMADRC significantly improves the impulsive resistance of the FESS, exhibiting excellent robustness and substantial engineering applicability.