核电站应急柴油发电机组选型

华君，马翼，郑添，张智禄

中国船舶集团有限公司第七○三研究所无锡分部，江苏 无锡  214151

摘要：对核电站柴油发电机组进行选型设计以确保核电站运行安全。明确应急发电机组选型要求，根据2套柴油发电机组加载负荷的顺序和容量，按负荷计算、分步加载计算、核电站设计推荐的发电容量中的最大者为依据选择发电机型号，以电压降为指标对发电机进行校核；以ISO 3046推荐的方法确定柴油机的额定功率及核电站设计要求功率的较大者为依据选择柴油机型号，并以首次可加载功率为指标进行校核。计算结果表明：发电机组的电压降为18.32%，满足电压降不大于20%的要求，柴油发电机组的首次加载功率大于发电机组的首次加载功率，满足选型要求。

关键词：核电厂；应急；柴油发电机组；选型；加载；电压降

Capacity selection of the emergency diesel generator set for nuclear power plant

HUA Jun, MA Yi, ZHENG Tian, ZHANG Zhilu

Wuxi Division of No.703 Research Institute of CSSC, Wuxi 214151, China

Abstract：To ensure the safe operation of nuclear power plants, diesel generator sets are designed for nuclear power plants. Clarify the requirements for emergency generator sets, the generator model is selected based on the order and capacity, calculating according to load, step by step load, and the maximum recommended generation capacity for nuclear power plant design, and the engine is verified by voltage drop. A diesel engine model is chosen based on the method recommended by ISO 3046 to determine the rated power of the diesel engine and the power required for nuclear power plant design, and verified with the first loadable power as the indicator. The calculation results show that the voltage drop of the generator set is 1832%, which meets the requirement of no more than 20% voltage drop. The first load power of the diesel generator set is greater than the first load power of the generator set, which meets the selection requirements.

Keywords:nuclear power plant；emergency；diesel generator set；capacity selection calculation；load; voltage drop