石文豪,顾丹珍,李振坤,程长胜,熊浩
SHI Wenhao,GU Danzhen,LI Zhenkun,CHENG Changsheng,XIONG Hao

• 1:上海电力大学电气工程学院

摘要(Abstract)：

针对传统电压暂降评估指标存在局限性及现有方法难以准确刻画不同类型敏感设备耐受特性差异的问题，提出了考虑敏感设备耐受特性的电压暂降严重程度评估方法。首先，通过取消故障区域电压暂降幅值和持续时间严重性指标的上限约束，改进传统的严重性指标，拓展其评估范围。其次，基于权值函数法构建了设备的电压暂降幅值和持续时间影响度函数，并据此提出设备的综合影响度指标。在此基础上，融合改进的AHP（层次分析法）和CV（变异系数法），建立兼顾主客观因素的综合评估模型，用于评估各节点中不同类型敏感设备的电压暂降严重程度；进一步，结合敏感设备占比评估节点整体电压暂降严重程度。最后，采用IEEE 30节点系统进行仿真验证，结果表明，该方法充分考虑了敏感设备的耐受特性差异，能够对敏感设备及节点的电压暂降严重程度进行科学、合理的评估。
To address the limitations of conventional voltage sag assessment metrics and the inability of existing methods to accurately characterize tolerance characteristic differences among various sensitive equipment types, this paper proposes a voltage sag severity assessment method that incorporates tolerance characteristics of sensitive equipment. First, the conventional severity metrics are improved by eliminating the upper constraints for voltage sag magnitude and duration in fault zones, thereby extending the assessment range. Second, magnitude-duration impact functions for equipment are constructed using the weighted function method, and a composite impact index is proposed. Building on this, an integrated evaluation model combining enhanced analytic hierarchy process(AHP) and coefficient of variation(CV) methods is developed to assess voltage sag severity for different sensitive equipment types at each node, balancing subjective and objective factors. Furthermore, the overall node voltage sag severity is evaluated by incorporating sensitive equipment proportions. Finally, simulations on the IEEE 30-bus system demonstrate that the proposed method effectively accounts for sensitive equipment tolerance differences and provides scientifically sound severity assessments for both equipment and nodes.

关键词(KeyWords)： 电压暂降评估;敏感设备耐受特性;层次分析法;变异系数法;权值函数法
voltage sag assessment;tolerance characteristics of sensitive equipment;AHP;CV;weighted function method

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52177098)

作者(Author): 石文豪,顾丹珍,李振坤,程长胜,熊浩
SHI Wenhao,GU Danzhen,LI Zhenkun,CHENG Changsheng,XIONG Hao

DOI: 10.19585/j.zjdl.202512001

参考文献(References)：

• [1]孙琳韬，王新环，李学娟.基于云模型的电压暂降严重度评估[J].电气工程学报，2024,19(2):210-218.SUN Lintao,WANG Xinhuan,LI Xuejuan.Evaluation of voltage sag severity based on cloud model[J]. Journal of Electrical Engineering,2024,19(2):210-218.
• [2]张佳瑞，刘晓胜，徐殿国.全双工电力线载波通信双人工噪声安全传输机制[J].电力系统自动化，2023,47(13):190-199.ZHANG Jiarui,LIU Xiaosheng,XU Dianguo. Dualartificial-noise secure transmission mechanism for fullduplex power line communication[J].Automation of Electric Power Systems,2023,47(13):190-199.
• [3]郭祥富，张旭，刘书铭，等.计及动态相关性的配电网稳态电能质量智能评价方法[J].浙江电力，2024,43(12):28-37.GUO Xiangfu,ZHANG Xu,LIU Shuming,et al.An intelligent evaluation method for steady-state power quality in distribution networks incorporating dynamic correlations[J].Zhejiang Electric Power,2024,43(12):28-37.
• [4]张玺，郑建勇，梅飞，等.基于Lissajous轨迹的电能质量扰动边-云协同高效辨识框架[J].电力系统自动化，2024,48(22):210-223.ZHANG Xi,ZHENG Jianyong,MEI Fei,et al.Lissajous locus-based efficient identification framework for power quality disturbances based on edge-cloud collaboration[J].Automation of Electric Power Systems,2024,48(22):210-223.
• [5]陈晓华，王志平，吴杰康，等.基于IHHO-SVM的电能质量扰动信号识别方法[J].浙江电力，2023,42(8):115-124.CHEN Xiaohua,WANG Zhiping,WU Jiekang,et al.Identification method for disturbance signal of power quality based on improve Harris Hawks optimization-support vector machine[J]. Zhejiang Electric Power,2023,42(8):115-124.
• [6]张逸，张良羽，陈锦涛，等.基于电能质量监测数据的电压暂降敏感负荷识别[J].电力自动化设备，2025,45(2):176-184.ZHANG Yi,ZHANG Liangyu,CHEN Jintao,et al.Voltage sag-sensitive load identification based on power quality monitoring data[J].Electric Power Automation Equipment,2025,45(2):176-184.
• [7]肖先勇，宋桂山，胡文曦，等.有源配电网电压暂降评估方法的挑战与展望[J].供用电，2024,41(8):25-34.XIAO Xianyong,SONG Guishan,HU Wenxi,et al.Challenges and prospects of voltage sag assessment method in active distribution networks[J].Distribution&Utilization,2024,41(8):25-34.
• [8]WANG Y,YANG Y X,XIAO X Y,et al.Configuration strategy of shared mitigation equipment for voltage sag considering the demands of users[J]. IET Generation,Transmission&Distribution,2020,14(25):6338-6347.
• [9]MOTOKI??M,DE CARVALHO FILHO J M,DA SILVEIRA P M,et al. Cost of industrial process shutdowns due to voltage sag and short interruption[J].Energies,2021,14(10):2874.
• [10]孙媛媛，许庆燊，马钊，等.数字化背景下新型电力系统谐波溯源关键技术[J].电力系统自动化，2024,48(6):154-169.SUN Yuanyuan,XU Qingshen,MA Zhao,et al.Key technologies for harmonic source tracing in new power system in background of digitalization[J].Automation of Electric Power Systems,2024,48(6):154-169.
• [11]徐悦，孙建军，丁凯，等.基于场景构建的电压暂降特征量随机评估方法[J].电力系统保护与控制，2021,49(9):105-112.XU Yue,SUN Jianjun,DING Kai,et al.Random evaluation method of voltage sag characteristics based on scenario construction[J].Power System Protection and Control,2021,49(9):105-112.
• [12]胡文曦，肖先勇，李成鑫.考虑多维特征刻画的电压暂降严重程度评估方法[J].电网技术，2021,45(1):331-338.HU Wenxi,XIAO Xianyong,LI Chengxin.Voltage sag severity assessment method considering multi-dimension characterization[J]. Power System Technology,2021,45(1):331-338.
• [13]马莉，陈应雨，田钉荣，等.基于改进层次分析法的多级电压暂降严重程度评估[J].电力系统保护与控制，2023,51(17):49-57.MA Li,CHEN Yingyu,TIAN Dingrong,et al. Severity evaluation of multistage voltage sag based on an improved analytic hierarchy process[J]. Power System Protection and Control,2023,51(17):49-57.
• [14]Transmission and Distribution Committee of the IEEE Power and Energy Society.IEEE guide for voltage sag indices:IEEE Std1546-2014[S/OL].(2014-03-27)[2025-02-22].https：//ieeexplore.ieee.org/document/6842577.
• [15]崔其莲，张艳，程志友.基于敏感设备电压耐受改进曲线的电压暂降评估方法[J].安徽大学学报（自然科学版），2021,45(4):47-54.CUI Qilian,ZHANG Yan,CHENG Zhiyou. Assessment method for voltage sag based on the improved voltage tolerance curve of sensitive equipment[J].Journal of Anhui University(Natural Science Edition),2021,45(4):47-54.
• [16]CHAN J Y,MILANOVIC J V. Severity indices for assessment of equipment sensitivity to voltage sags and short interruptions[C]//2007 IEEE Power Engineering Society General Meeting.June 24-28,2007,Tampa,FL,USA.IEEE,2007:1-7.
• [17]卢文清，常乾坤，贾东强，等.设备侧电压暂降严重程度评估方法研究[J].电力自动化设备，2019,39(1):175-182.LU Wenqing,CHANG Qiankun,JIA Dongqiang,et al.Research on evaluation methods of voltage sag severity for equipment side[J]. Electric Power Automation Equipment,2019,39(1):175-182.
• [18]GUO X H, LI Y,WANG S Y,et al. A comprehensive weight-based severity evaluation method of voltage sag in distribution networks[J].Energies,2021,14(19):6434.
• [19]吕金炳，杨国朝，范兴管.基于虚拟上下限曲线的电压暂降防治指标[J].中国电力，2022,55(7):59-66.LV Jinbing,YANG Guochao,FAN Xingguan.A voltage sag prevention index based on virtual upper and lower limit tolerance curve[J]. Electric Power,2022,55(7):59-66.
• [20]栾乐，马智远，莫文雄，等.考虑不同敏感设备耐受特性的用户侧电压暂降严重程度区间评估方法[J].电力系统保护与控制，2021,49(2):140-148.LUAN Le,MA Zhiyuan,MO Wenxiong,et al. Voltage sag severity interval assessment method for user side considering tolerance characteristics of equipment of differing sensitivity[J]. Power System Protection and Control,2021,49(2):140-148.
• [21]TAN R H G,RAMACHANDARAMURTHY V K.Voltage sag acceptability assessment using multiple magnitudeduration function[J].IEEE Transactions on Power Delivery,2012,27(4):1984-1990.
• [22]杨家莉，刘书铭，徐永海，等.基于熵权法的电压暂降严重程度综合评估方法[J].现代电力，2017,34(4):40-49.YANG Jiali,LIU Shuming,XU Yonghai,et al.Comprehensive evaluation method of voltage sag severity based on entropy coefficient method[J].Modern Electric Power,2017,34(4):40-49.
• [23]季玉琦，潘超，肖晗，等.分布式电源电压支撑能力层次分析评价[J].电力系统保护与控制，2021,49(11):163-171.JI Yuqi,PAN Chao,XIAO Han,et al.Hierarchical analysis and evaluation of the voltage support capability of distributed generation[J].Power System Protection and Control,2021,49(11):163-171.
• [24]PAN L,ZHANG P,YU X.Comprehensive evaluation of node voltage sag severity considering the power grid side and the user side[C]//2018 China International Conference on Electricity Distribution(CICED).September 17-19,2018,Tianjin,China.IEEE,2018:467-471.
• [25]曾志辉，肖宇.基于变异系数与高阶累积量的小电流接地故障选线[J].电力系统保护与控制，2020,48(13):99-109.ZENG Zhihui,XIAO Yu.Small current grounding fault selection based on coefficient of variation and high order cumulant[J].Power System Protection and Control,2020,48(13):99-109.
• [26]肖先勇，王希宝，薛丽丽，等.敏感负荷电压凹陷敏感度的随机估计方法[J].电网技术，2007,31(22):30-33.XIAO Xianyong,WANG Xibao,XUE Lili,et al. A method to stochastically estimate voltage sag sensitivity of sensitive equipments[J]. Power System Technology,2007,31(22):30-33.