新型电力系统背景下电压暂降风险评估技术挑战与展望

doi:10.12204/j.issn.1000-7229.2023.02.002

摘要/Abstract

摘要：

电压暂降已成为最严重的电能质量问题,由于其不可避免,因此风险评估成为减小其影响的关键环节。首先分析了三类电压暂降风险量化指标,将风险评估方法分为基于仿真模拟、基于状态估计以及基于数据驱动三类方法,总结各类方法的优缺点与适用场景;其次,指出在新型电力系统背景下电压暂降风险评估面临的技术挑战;最后,对电压暂降风险评估未来研究方向进行了展望,以期为相关研究开展提供参考思路。

关键词: 新型电力系统, 电压暂降, 风险评估, 评估方法, 互动分析平台

Abstract:

Voltage sag has become the most serious power quality problem. Since voltage sag is inevitable, risk assessment becomes the key link to reduce its impact. Firstly, three kinds of risk quantitative indicators for voltage sag are analyzed, and the risk assessment methods are divided into three categories: simulation-based, state estimation-based and data-driven risk assessment methods. The advantages, disadvantages and applicable scenarios of each method are summarized. Secondly, the paper points out the technical challenges faced by voltage sag risk assessment in the context of new power system. Finally, the future research direction of voltage sag risk assessment is prospected, in order to provide reference for related research.

Key words: new power system, voltage sag, risk assessment, evaluation methodology, interactive analysis platform

中图分类号:

TM712

张逸, 吴逸帆, 陈晶腾. 新型电力系统背景下电压暂降风险评估技术挑战与展望[J]. 电力建设, 2023, 44(2): 15-24.

ZHANG Yi, WU Yifan, CHEN Jingteng. Research Status of Voltage Sag Risk Assessment and Prospect Under the Background of New Power System[J]. ELECTRIC POWER CONSTRUCTION, 2023, 44(2): 15-24.

图/表 7

图1 电压暂降风险主要影响因素

Fig.1 Main influencing factors of voltage sag risk

图2 电压暂降风险量化指标相互关系

Fig.2 Relationship between quantitative indices of voltage sag risk

图3 过程免疫时间曲线

Fig.3 Time curve of process immunity

表1 不同电压暂降风险评估方法比较

Table 1 Comparison of different voltage sag risk assessment methods

图4 电压暂降在电-气综合能源系统的影响

Fig.4 Influence of voltage sag on EG-IES

图5 数字孪生在电压暂降风险评估中应用示意图

Fig.5 Application of digital twin in voltage sag risk assessment

图6 电压暂降风险评估面临挑战、技术手段、支撑平台

Fig.6 Challenges, technical means and supporting platform for voltage sag risk assessment

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