核聚变发电厂电气主接线系统设计

Design of Electrical Main Wiring System for Nuclear Fusion Power Plant

依托一套与CFETR聚变堆机组功率对应的350 MW发电机组项目,根据核电站设计等规程规范,同时参考国内300 MW及以上核电机组设计经验,对电气系统设计进线进行分析。该项目中,1台350 MW级机组采用发变组的单元接线方式接入厂内220 kV配电装置,220 kV配电装置采用双母线接线形式。厂用电系统由主交流电源系统、厂内备用电源系统和直流及不间断电源系统组成。基于该项目尚处于概念设计阶段,介绍了核聚变发电厂电气主接线系统的设计特点和安全设计准则,可供核电站电气设计人员参考。

Relying on a set of 350 MW generating units corresponding to the power of CFETR fusion reactor units,according to the regulations and specifications of nuclear power plant design,and referring to the domestic design experience of 300 MW and above nuclear power units,the design of the electrical system is analyzed.In this project,a 350 MW unit is connected to the 220 kV power distribution device in the factory by the unit wiring method of the generator-transformer unit,and the 220 kV power distribution device is connected by double busbars.The power system of the plant consists of the main AC power system,the in-plant backup power system and the DC and uninterruptible power system.Based on the fact that the project is still in the conceptual design stage,the design features and safety design criteria of the electrical main wiring system of the nuclear fusion power plant are introduced,which can be referenced by the electrical designers of the nuclear power plant.