分布电容对桥差保护初始不平衡电流的影响  

The Influence of Distributed Capacitance on Initial Unbalance Current of H Type Protection

作　　者：郭庆文[1] 黄瑄[1] 杨晓良[1] 张长宇[1] 

机构地区：[1]西安ABB电力电容器有限公司,陕西西安710021

出　　处：《电力电容器与无功补偿》2010年第1期15-18,26,共5页Power Capacitor & Reactive Power Compensation

摘　　要：以华新换流站HP12/24滤波电容器组为例,介绍其塔架结构及接线方式,针对电容器组充电调试时初始不平衡电流偏大的问题,分析、查明并验证原因,发现不同电气连接的分布电容对4个桥臂有不同的影响,通过调整接线,改变分布电容的位置,达到了预期理想要求,为其他HVDC工程提供了经验。This paper, taking HP12/24 filters capacitor banks at Shanghai Huaxin converter station as an example, introduces its structure of tower and way of connection, analyzes, checks and verifies such issue as larger initial unbalance current at charging commissioning of the capacitor bank and finds that the distribution capacitance of different electrical connections has different influence on 4 bridge arms. Adjustment of connection, change of position of distribution capacitance and a- chievement of expected ideal requirement provide experience for other HVDC projects.

关 键 词：调试 桥差保护 分布电容 不平衡电流 固定电位连线 

分 类 号：TM531[电气工程—电器]