圆图法计及多级电网结构和负荷的发电机自励磁计算应用  

The Application of Generator Self-Excitation Calculation With Circular Chart Method Considering Multi-level Power Grid Structure and load

作　　者：张丽娟 李洛 李美玲 朱子琪 Zhang Li-juan;Li Luo;Li Mei-ling;Zhu Zi-qi

机构地区：[1]中国电建集团青海省电力设计院有限公司,青海西宁810008

出　　处：《电力系统装备》2020年第13期86-88,共3页Electric Power System Equipment

摘　　要：对自励磁现象和产生的机理进行了简要介绍,围绕圆图法展开分析.圆图法综合考虑了电网结构特性、负荷大小和线路阻抗的影响,较目前常用的快速估算法更加准确,较阻抗法和充电功率法考虑因素更加全面,并通过西北某省新建330 kV输变电工程进行实例验证.The self-excitation phenomenon and the mechanism of its production are briefl y introduced,and the analysis is carried out around the circle diagram method.The circular chart method comprehensively considers the infl uence of the power grid structure characteristics,load size and line impedance.It is more accurate than the current commonly used rapid estimation method,more comprehensive than the impedance method and charging power method,and a new 330 kV transmission and transformation is adopted in a northwestern province.Project verifi cation.

关 键 词：自励磁 圆图法 阻抗图 网络等值 

分 类 号：TM864[电气工程—高电压与绝缘技术]