考虑设备耐受特性的能量指标分级评估

doi:10.11930/j.issn.1004-9649.202106022

中国电力 ›› 2022, Vol. 55 ›› Issue (3): 115-124.DOI: 10.11930/j.issn.1004-9649.202106022

考虑设备耐受特性的能量指标分级评估

范兴管, 徐永海, 牛春豪, 邓思影

华北电力大学电气与电子工程学院，北京 102206

收稿日期:2021-06-18 修回日期:2022-01-06 出版日期:2022-03-28 发布日期:2022-03-29
作者简介:范兴管（1996—），男，硕士研究生，从事电能质量及新能源技术研究，E-mail：1439167151@qq.com;徐永海（1966—），男，通信作者，教授，博士生导师，从事电能质量分析与控制、新能源电力系统等研究，E-mail：yonghaixu@263.net;牛春豪（1997—），男，硕士研究生，从事电能质量及新能源技术研究，E-mail：375163110@qq.com;邓思影（1999—），女，硕士研究生，从事电能质量及新能源技术研究，E-mail：dengsiying611@163.com
基金资助:
国网天津市电力公司科技项目（高端制造用户友好供电服务技术研究，KJ20-1-11）；国家自然科学基金资助项目（风电系统时变间谐波的解析建模与并网交互影响及危险区域研究，51777066）；北京市自然科学基金资助项目（融合电动汽车充放电与优质供电的高利用率电力电子变压器研究，3172036）。

Grading Assessment of Energy Index Considering Equipment Tolerance Characteristics

FAN Xingguan, XU Yonghai, NIU Chunhao, DENG Siying

School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China

Received:2021-06-18 Revised:2022-01-06 Online:2022-03-28 Published:2022-03-29
Supported by:
This work is supported by Science and Technology Projects of State Grid Tianjin Electric Power Company (Research on User-Friendly Power Supply Service Technology for High-End Manufacturing, No. KJ20-1-11), National Natural Science Foundation of China (Analytical Modeling of Time-varying Interharmonics in Wind Power Systems, Grid-connected Interaction and Research on Hazardous Areas, No. 51777066) and Natural Science Foundation of Beijing (Research on High Utilization Power Electronic Transformers Integrating Charge and Discharge of Electric Vehicles and High-Quality Power Supply, No. 3172036).

摘要/Abstract

摘要： 考虑用户设备电压耐受特性对评估结果的影响，提出了一种考虑设备耐受特性的改进能量指标的系统侧电压暂降分级评估方法。首先，进行了能量指标的比较基准值以及不确定区域内暂降事件严重程度差异性刻画不足的分析；然后，基于电压耐受曲线构建比较基准值与权重系数，建立改进能量指标评估模型，进而对暂降事件严重性进行等级划分；最后，使用该方法对某监测节点处所发生的24次电压暂降事件进行分析，结果表明了所提方法的合理性与有效性，可用于实际系统的电压暂降评估与治理工作。

关键词: 能量指标, 耐受特性, 比较基准值, 不确定区域, 等级划分

Abstract: Considering the influence of user equipment's voltage tolerance characteristics on the assessment results, a system-side voltage sag grading assessment method is proposed to improve the energy index, which considers the equipment's tolerance characteristics. Firstly, an analysis is made of the comparison benchmark value of the energy index and the insufficient description of the difference in severity of the sag events in the uncertain area; And then, the comparison benchmark value and weight coefficient are constructed based on the voltage tolerance curve, and an improved energy index evaluation model is built to grade the severity of the sag event; Finally, the proposed method is used to analyze 24 voltage sag events occurring at a monitoring node, which have proved the rationality and effectiveness of the proposed method. The proposed method can be used for voltage sag assessment and governance of the actual power systems.

Key words: energy index, tolerance characteristics, comparison benchmark value, uncertainty area, gradation

范兴管, 徐永海, 牛春豪, 邓思影. 考虑设备耐受特性的能量指标分级评估[J]. 中国电力, 2022, 55(3): 115-124.

FAN Xingguan, XU Yonghai, NIU Chunhao, DENG Siying. Grading Assessment of Energy Index Considering Equipment Tolerance Characteristics[J]. Electric Power, 2022, 55(3): 115-124.

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