500kV变电站220kV侧分母运行方式提高电网稳定特性的研究  

The Study on the Improvement of Power Grid Stability by Way of Separate Operation of 220kV Side Bus in 500kV Substations

作　　者：周悦[1] 李淼[1] 

机构地区：[1]国网湖北省电力公司调度控制中心,湖北武汉430077

出　　处：《湖北电力》2014年第2期1-4,共4页Hubei Electric Power

摘　　要：短路电流超标或者主变压器下网/220kV出线输送能力不足是目前500kV变电站中普遍存在的问题,本文根据"理想500kV变电站"运行特点,提出在此类变电站220kV侧母线进行分母的运行方案,在不增加任何投资的情况下,同时解决短路电流、主变压器下网/220kV出线输送能力不足的问题。分析了该方案在湖北电网中的实际应用前景,为电网实际运行难题提出了有价值的解决方案。The problems of excessive short-circuit current and the lack of the transmission capacity of the main transformers off-grid/220kV outgoing lines has generally existed in 500kV substations at present.According to the operational features of 'the ideal 500kV substations',this paper proposes the scheme of separate operation for the bus of 220kV side,which can resolve the above problems without any further investment.The paper also analyzes the prospects of the scheme in the application of Hubei power grid,providing valuable solutions for the challenges in the practical application in power grid.

关 键 词：500 KV变电站 220 kV母线分母运行 短路电流 输送能力 

分 类 号：TM712[电气工程—电力系统及自动化]