山西电网220 kV河刘双回线电流三相不平衡原因分析

摘要

通过对山西电网220 kV河刘双回线三相电流不平衡现象详细研究和仿真计算，确定其不平衡现象产生的原因和处理思路，制定出相应技术措施并通过了实际整改工程验证，对于山西省各地区输电线路三相不平衡现象的消除工作具有借鉴意义。%Electric unbalance of Shanxi grid 220 kV Heliu double circuit transmission lines is studied and simulated by PSCAD in this thesis. The cause of unbalance and its treatment method are identified,and technical measures are established correspondingly and the measures were verified,which provides reference for eliminating three-phase unbalance of transmission lines.