李冲,赵晋泉,党杰,崔挺,陈道君
LI Chong,ZHAO Jinquan,DANG Jie,CUI Ting,CHEN Daojun

• 1:教育部海上风电技术工程研究中心(上海电力大学)
• 2:国家电网有限公司华中分部
• 3:国网湖南省电力有限公司电力科学研究院

摘要(Abstract)：

高比例新能源电力系统暂态电压稳定问题突出，以无功功率视角评估系统暂态电压稳定性，有助于了解系统对无功补偿的需求。将动态无功储备按可增发时长及扰动后系统不同时间尺度无功需求的不同，划分为短期和长期两类；分别给出两类动态无功储备最大有效量及最小需求量计算方法；提出了一种基于分区分类动态无功储备的电网暂态电压稳定性评估方法。采用标准算例CSEE-VS系统进行仿真，验证了所提方法的有效性。
Transient voltage stability has become a critical challenge in power systems with high penetration of renewable energy sources(RES). Assessing transient voltage stability from a reactive power perspective provides insights into the system's reactive power compensation requirements. This paper proposes a classification of dynamic reactive power reserve(DRPR) into short-term and long-term categories based on their dispatchable duration and the system's multi-timescale reactive power demand following disturbances. Calculation methods for the maximum effective capacity and minimum required capacity of each category are respectively proposed. A novel transient voltage stability assessment method is then developed, leveraging zoned and classified DRPR. Simulations on the CSEEVS benchmark system demonstrate the method's validity.

关键词(KeyWords)： 暂态电压稳定;动态无功储备;多时间尺度;分区;最大有效量;最小需求量
transient voltage stability;DRPR;multi-timescale;zoning;maximum effective capacity;minimum required capacity

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51577049);; 国家电网有限公司总部科技项目(5100-202323008A-1-1-ZN)

作者(Author): 李冲,赵晋泉,党杰,崔挺,陈道君
LI Chong,ZHAO Jinquan,DANG Jie,CUI Ting,CHEN Daojun

DOI: 10.19585/j.zjdl.202507002

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