电压暂降事件的分析处理  

Analysis and Consideration of Several Voltage Sag Incidents

作　　者：夏云伟 覃日升 况华 姜訸 李文 李奕霖 徐志 张辰 Xia Yunwei;Qin Risheng;Kuang Hua;Jiang He;Li Wen;Li Yilin;Xuzhi;Zhang Chen(Yunnan Power Grid Co.,Ltd.,Lijiang Power Supply Bureau,Lijiang 674100,Yunnan,China;Electric Power Research Institute of Yunnan Power Grid Corporation,Kunming 650127,Yunnan,China;Yunnan Power Grid Co.,Ltd.,Kunming 650000,Yunnan,China;Yunnan Power Grid Co.,Ltd.,Chuxiong Power Supply Bureau,Chuxiong 651200,Yunnan,China)

机构地区：[1]云南电网有限责任公司丽江供电局,云南丽江674100 [2]云南电网有限责任公司电力科学研究院,云南昆明650217 [3]云南电网有限责任公司,云南昆明650000 [4]云南电网有限责任公司楚雄禄丰供电局,云南楚雄651200

出　　处：《云南电力技术》2025年第1期90-95,共6页Yunnan Electric Power

摘　　要：电压暂降是电能质量指标中对现代工业生产加工影响较大的指标之一,因其具有偶发性,通常很难避免,正逐步成为被高度关注的电能质量问题。本文针对云南两起电压暂降事件,从多角度探讨了电压暂降特征及产生原因,深度剖析事件本质,结合负荷、电网波形及设备仿真结果综合分析造成设备“闪停”的原因,并基于此,给出治理意见及列举常见用户侧电压暂降治理设备,为该场景下的电压暂降问题提供处理思路和治理参考,以便改善电能质量、提升设备运行稳定性。Voltage sags are one of the power quality indicators that significantly affect modern industrial production and processing.Due to their sporadic nature,they are often difficult to avoid and are gradually becoming a highly concerning power quality issue.This article investigates two voltage sag events in Yunnan from multiple perspectives,exploring the characteristics and causes of voltage sags.It deeply analyzes the essence of the events and,in conjunction with load,grid waveform,and equipment simulation results,comprehensively analyzes the causes of equipment“flashing stops.”Based on these findings,the article provides governance suggestions and lists common user-side voltage sag management equipment,offering approaches and reference for managing voltage sag issues in this scenario.This is done to improve power quality and enhance the stability of equipment operation.

关 键 词：电压暂降 低电压治理 电能质量 电力系统 

分 类 号：TM74[电气工程—电力系统及自动化]