大型火力发电厂高压厂用电系统创新应用  

Innovative Application of High Voltage Auxiliary Power System in Fossil Fired Power Plant

作　　者：王永生[1] WANG Yong-sheng(Procurement Center,Northwest Electric Power Design Institute Company Limited,Xi’an 710075,China)

机构地区：[1]西北电力设计院有限公司采购中心,西安710075

出　　处：《西安文理学院学报（自然科学版）》2020年第3期67-70,共4页Journal of Xi’an University(Natural Science Edition)

摘　　要：高压厂用电系统是火力发电厂的重要组成部分.结合某2×1000 MW级大型火力发电机组工程,介绍了常规高压厂用电系统方案,在常规方案基础上对高压厂用电系统的接线方案和运行方式进行了优化和创新,提出了一种具有双机互联与专用停机电源相互切换的高压厂用电系统,并且应用于工程中.这种高压厂用电系统在目前国内外火力发电厂运行机组中较为少见,具有一定的参考价值.High voltage auxiliary power system is an important part of fossil fired power plant.In this paper,combined with a 2×1000MW large fossil fired power generation unit project,the conventional high-voltage auxiliary power system scheme is introduced.Based on the conventional scheme,the connection scheme and operation mode of the high-voltage auxiliary power system are optimized and innovated,and a high-voltage auxiliary power system with the interconnection of two computers and the mutual switch of special shutdown power supply is proposed,which is applied in the project.This kind of high-voltage auxiliary power system is rare in the operation units of fossil fired power plants at home and abroad at present,which has certain reference value.

关 键 词：火力发电厂 高压厂用电系统 工作电源 停机电源 接线方案 切换方式 

分 类 号：TM89[电气工程—高电压与绝缘技术]