摘要
针对交直流混联受端电网在直流发生闭锁故障后,会产生功率缺额,而潮流转移过程中可能造成交流通道过载,引发连锁故障的问题,提出了一种切负荷方案配置方法。通过分析直流系统及切负荷点与不同交流通道之间的功率转移系数,并综合考虑不同负荷的重要性对其进行修正,得到满足限制条件的优化切负荷方案。在浙江电网系统中进行了仿真验证,结果证明了所提方法的可行性和有效性。
In hybrid AC/DC receiving-end grid, power shortage and power transfer would occur after DC blocked faults, and it couldcause chain faults. A load shedding scheme configuration method is proposed through analysis of power transfer coefficient of DC orload shedding buses and AC transmission lines, along with consideration of load importance factor. The simulation results for ahybrid AC/DC receiving-end grid in Zhejiang power grid proves feasibility and effectiveness of proposed method.This work is supported by Science and Technology Project of State Grid Zhejiang Electric Power Corporation （No. 5211DS15002C）.
作者
陈湘
凌卫家
宋云亭
邓晖
华文
CHEN Xiang;LING Weijia;SONG Yunting;DENG Hui;HUA Wen(China Electric Power Research Institute, Beijing 100192, China;State Grid Zhejiang Electric Power Corporation, Hangzhou 310007,China;State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China)
出处
《中国电力》
CSCD
北大核心
2018年第5期61-67,共7页
Electric Power
基金
国网浙江省电力公司科技项目(5211DS15002C)~~
关键词
交直流混联系统
功率转移系数
切负荷方案
安全稳定
hybrid AC/DC system
power transfer coefficient
load shedding scheme
security and stability
