AP1000核电厂厂用电快切原理及其对设备的影响  

Fast Transfer Principle and Its Influence on the Equipment of Domestic Load for AP1000Nuclear Power Plant

作　　者：赵立东 唐海燕 

机构地区：[1]中核集团三门核电有限公司,浙江三门317112

出　　处：《电力与能源》2015年第3期318-322,共5页Power & Energy

基　　金：三门核电2015年科技项目(SMG-GV5-G0U-14011)

摘　　要：厂用电快速切换是发电厂事故下确保厂内设备安全的重要方式。以三门核电一期工程厂用电快速切换为背景,分析快切原理,给出快切的启动条件、切换逻辑及同期条件,并结合保护装置的特征对同频同期和差频同期进行探讨。最后,就快速切换对电机、变压器及主泵等厂用负荷的影响进行分析。结果表明,快速切换可以实现,保护不会误动,并可以确保电机等负荷的重启动。Fast transfer of domestic load is an important method to protect the equipment after the accident.This paper analyzes the principle of fast transfer for Sanmen Nuclear Power Plant,and presents the initiation condition,the transfer logic and the synchronism condition.Combined with the characteristic of the protection device,the static frequency synchronism and the slip frequency synchronism are discussed.Finally,the influence is analyzed on the power station internal load,such as motor,transformer and the reactor coolant pump.As the results show,the fast transfer can be operated,protection will not lead to maloperation,and the motor will successfully be reaccelerated.

关 键 词：厂用电 快速切换 同期 厂用负荷 

分 类 号：TK227.1[动力工程及工程热物理—动力机械及工程]