浙江电力2025，Vol.44Issue(12)：1-11,11.DOI:10.19585/j.zjdl.202512001
考虑敏感设备耐受特性的电压暂降严重程度评估方法
A voltage sag severity assessment method incorporating tolerance characteristics of sensitive equipment
摘要
Abstract
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 pro-posed.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 demon-strate that the proposed method effectively accounts for sensitive equipment tolerance differences and provides scien-tifically sound severity assessments for both equipment and nodes.关键词
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Key words
voltage sag assessment/tolerance characteristics of sensitive equipment/AHP/CV/weighted function method引用本文复制引用
石文豪,顾丹珍,李振坤,程长胜,熊浩..考虑敏感设备耐受特性的电压暂降严重程度评估方法[J].浙江电力,2025,44(12):1-11,11.基金项目
国家自然科学基金(52177098) （52177098）
