电力系统保护与控制2026，Vol.54Issue(11)：26-36,11.DOI:10.19783/j.cnki.pspc.251364
快速电压变化的检测及严重性评估方法研究
Research on detection and severity assessment methods for rapid voltage changes
摘要
Abstract
Rapid voltage change(RVC),as an important power quality disturbance,frequently occurs in distribution systems with impulsive loads and high penetration of renewable energy sources.This paper compares the RVC detection methods specified in IEC 61000-4-15 and IEC 61000-4-30,and analyzes the influence of different steady-state threshold settings on RVC event detection results based on measured voltage data from electric arc furnaces.Existing RVC assessment systems mainly reflect overall disturbance control requirements by constraining the amplitude and occurrence frequency of voltage changes within a specified time period;however they have difficulty characterizing the differences among various RVC events in terms of time-domain characteristics and actual disturbance in intensity.In response to this problem,and in combination with RVC limit requirements,a severity assessment index and corresponding assessment methods are proposed that simultaneously consider the instantaneous impact and cumulative time effect of disturbances.The results demonstrate that the proposed index can effectively distinguish the severity differences among various RVC events,providing an effective basis for RVC disturbance analysis and mitigation strategy formulation in typical impulsive load scenarios such as electric arc furnaces.关键词
快速电压变化/稳态阈值/电弧炉/限值/严重性评估指标Key words
rapid voltage change/steady-state threshold/electric arc furnace/limit value/severity assessment index引用本文复制引用
田笑涵,徐永海,陈奕杰,王旭鹏..快速电压变化的检测及严重性评估方法研究[J].电力系统保护与控制,2026,54(11):26-36,11.基金项目
This work is supported by the National Natural Science Foundation of China(No.52477094). 国家自然科学基金项目资助(52477094) （No.52477094）
