计及变电站低压侧接线的配电网最大供电能力计算与分析  

Calculation and analysis of total supply capability of distribution network considering connection mode at low voltage side of substation

作　　者：肖峻[1] 龙梦皓 程敏 祖国强[1] 

机构地区：[1]天津大学智能电网教育部重点实验室,天津300072 [2]浙江大学电气工程学院,浙江杭州310027

出　　处：《电力自动化设备》2018年第2期18-26,43,共10页Electric Power Automation Equipment

基　　金：国家重点研发计划项目(2016YFB0900100);国家自然科学基金资助项目(51277129)~~

摘　　要：针对现有最大供电能力(TSC)模型无法反映变电站低压侧接线形式不同以及主变N-1后站内优先转带的问题,提出一种基于N-1仿真逼近的计及变电站低压侧接线的配电网TSC算法。根据我国高压配电变电站10 k V侧典型低压侧接线建立配电网算例,研究TSC随低压侧接线形式不同的变化规律以及低压侧接线对TSC的影响机理。仿真结果表明所提方法所得TSC更为精确。Aiming at the problems of the existing TSC （ Total Supply Capacity） model which can not reflect different connection modes at the low voltage side of substation and the priority transfer of main transformer after N-1, a TSC algorithm for distribution network is proposed based on N- 1 simulation approximation, which considers the connection mode at the low voltage side of substation. A distribution network case is built according to the typical connection modes at the 10 kV low voltage side of high voltage distribution substation, the variation rule of TSC along with different connection modes at the low voltage side and the influence mechanism of the connection modes on TSC are researched. Simulative results verify that the TSC obtained by the proposed method is of higher accuracy.

关 键 词：最大供电能力 配电网 变电站 低压侧接线 N-1逼近法 

分 类 号：TM715[电气工程—电力系统及自动化]