三相负荷不平衡对配电网电能损耗的影响与优化对策  

The Impact of Three-Phase Load Imbalance on Power Loss in Distribution Network and Optimization Strategy

作　　者：王瑛琪 薛川 续永 WANG Yingqi;XUE Chuan;XU Yong(State Grid Jibei Electric Power Co.,Ltd.,Langfang Power Supply Company,Langfang 065000,China)

机构地区：[1]国网冀北电力有限公司廊坊供电公司,河北廊坊065000

出　　处：《通信电源技术》2025年第7期115-117,121,共4页Telecom Power Technology

摘　　要：三相负荷不平衡现象在配电网运行中广泛存在,对电能损耗和电网稳定性影响显著。通过分析三相负荷不平衡对配电网电能损耗的影响机理,探讨不平衡状态引发的电能质量问题和基于损耗机理的优化策略。研究表明,三相负荷不平衡增加了导线与变压器的损耗,降低了电网运行效率,并引发了电压波动等电能质量问题。通过改进负荷分配、优化设备配置以及加强动态监测,可有效降低损耗,提升配电网的整体运行性能。Three-phase load imbalance exists widely in the operation of distribution network,which has a significant impact on power loss and power grid stability.By analyzing the influence mechanism of three-phase load imbalance on power loss of distribution network,the power quality problems caused by unbalanced state and the optimization strategy based on loss mechanism are discussed.The research shows that the unbalance of three-phase load increases the loss of conductor and transformer,reduces the operation efficiency of power grid,and causes power quality problems such as voltage fluctuation.By improving load distribution,optimizing equipment configuration and strengthening dynamic monitoring,the loss can be effectively reduced and the overall operation performance of distribution network can be improved.

关 键 词：三相负荷不平衡 配电网 电能损耗 

分 类 号：TM73[电气工程—电力系统及自动化]