Response characteristics of large fixed-speed and variable-speed pumped-storage units under fast power fluctuations

汪玉清; 周大庆; 冯陈

doi:10.11660/slfdxb.20241007

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Response characteristics of large fixed-speed and variable-speed pumped-storage units under fast power fluctuations

更新时间：2026-07-22

- Response characteristics of large fixed-speed and variable-speed pumped-storage units under fast power fluctuations
- Journal of Hydroelectric Engineering Vol. 43, Issue 10, (2024)
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- DOI：10.11660/slfdxb.20241007
  CLC：
- Online First：25 October 2024，
  
  Published：2024
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汪玉清, 周大庆, 冯陈. Response characteristics of large fixed-speed and variable-speed pumped-storage units under fast power fluctuations[J]. Journal of Hydroelectric Engineering, 2024, 43(10).
DOI：

汪玉清, 周大庆, 冯陈. Response characteristics of large fixed-speed and variable-speed pumped-storage units under fast power fluctuations[J]. Journal of Hydroelectric Engineering, 2024, 43(10). DOI： 10.11660/slfdxb.20241007.

摘要

本文对定速机组和变速机组应对快速功率波动时的响应情况进行了对比仿真，研究了九种不同大小、不同频率的功率波动下定速机组和变速机组的响应情况，并利用功率差的平均值、标准值、功率上升（下降）响应时间的平均值、功率延迟时间这四个量化评估指标对定速机组和变速机组的功率响应特性进行了具体分析。结果表明变速机组不仅能有效应对秒级时间内快速波动的新能源出力，对快速新能源出力波动的响应能力也远优于传统定速机组，进一步说明了变速机组应对新能源波动的有效性。

Abstract

This study compares the responses of large fixed-speed and variable-speed pumped-storage units to fast power fluctuations through numerical simulations. We examine their response characteristics under power fluctuations of nine sets different in amplitude and frequency. The power response characteristics of the units are analyzed using four quantitative evaluation indicators－mean and standard deviations of power differences

mean response time for power rise (fall)

and power delay. The results show that variable-speed generating units not only effectively respond to rapid fluctuations in the renewable energy output within seconds

but their response capabilities are superior to those of traditional large fixed-speed pumped-storage units. This further emphasizes the importance of variable speed units in coping with renewable energy fluctuations.

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