山西中部电磁环网解环研究

Research on Opening Shanxi Central Electromagnetic Loop Networks

分析了电磁环网解环的必然性,并提出解环的原则,从降低短路电流水平角度说明山西中部电网解环的必要性,在山西电网规划的基础上,提出中部电网可能的解环规划方案,从分片分层供电平衡、短路电流水平以及潮流分布3个方面对解环方案进行了分析评价,最后推荐了中部电网解环规划方案。

The inevitability of opening electromagnetic loop networks is analyzed and the principle of opening loop networks is put forward. Opening Shanxi central electromagnetic loop networks is necessary for reducing short-circuit current. Based on layout of Shanxi grid, possible projects of opening electromagnetic loop networks is brought forward. From power supply balance of dividing 220 kV networks, level of short-circuit current and distribution of power flow, the projects of opening electromagnetic loop networks are analyzed and evaluated. In the end, the project of opening Shanxi central electromagnetic loop networks is recommended.