摘要
利用RCC-E关于直流系统电压性能异常变化范围的规定,以及现有核岛直流系统蓄电池年度放电曲线,结合法国EDF核电站核岛直流系统电压高低报警定值,提出了1 000 MW核电机组核岛直流系统电压高、低报警定值设计的新方法。电压报警定值按照系统设计方法,电压高报警定值与下游电源匹配,电压低报警后,蓄电池应能再运行半个多小时。运行实践表明,新的电压高、低报警定值设计合理,在电压异常时,能够及时报警,正确地反映了系统运行的状况。
The design of high and low alarm settings for the DC system voltage of 1 000 MW nuclear power plants is proposed according to the scope of abnormal voltage performances stipulated in RCC-E for DC system and the existing annual discharge curve of DC system battery,with the reference to those of French EDF nuclear power plants.The designed high alarm setting matches the downstream power supply.With the designed low alarm setting,about more than half an hour of system operation by battery is allowed after alarm annunciation.Operational results show that,the designed voltage alarm settings are reasonable,the voltage abnormality is timely alarmed,and the situation of the system operation is correctly reflected.
出处
《电力自动化设备》
EI
CSCD
北大核心
2011年第7期120-122,126,共4页
Electric Power Automation Equipment
关键词
核电站
直流系统
电压监测
报警系统
定值
nuclear power plants
DC system
voltage measurement
alarm systems
setting
