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Convention studies on the large disturbance power system frequency stability focus on the center of inertia frequency. However, the frequency drop at certain nodes may be much severer than the frequency drop of the center of inertia frequency after a large disturbance in low-inertia systems. This paper investigates the nodal frequency response characteristics of low-inertia power system to optimize the allocation of grid-forming converters. An optimization model is established based on the dynamic system model to improve the nodal frequency response characteristics under multiple contingencies. The proposed model is validated in a 39-bus system.

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Grid-Forming Converter Allocation Optimization Considering Nodal Frequency Response

  • 会议论文

  • 发表日期：

    2026年

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  • Zhang Yuqian,
  • Guo Qinglai,
  • Wang Xuanyuan,
  • Zhang Juan,
  • Jing Haoran,
  • Liu Haitao,
  • Xing Jing

摘要

Convention studies on the large disturbance power system frequency stability focus on the center of inertia frequency. However, the frequency drop at certain nodes may be much severer than the frequency drop of the center of inertia frequency after a large disturbance in low-inertia systems. This paper investigates the nodal frequency response characteristics of low-inertia power system to optimize the allocation of grid-forming converters. An optimization model is established based on the dynamic system model to improve the nodal frequency response characteristics under multiple contingencies. The proposed model is validated in a 39-bus system.