电测与仪表2018，Vol.55Issue(2)：8-14,7.
大型核电机组冷却剂屏蔽主泵动态模型及响应特性研究
Study on dynamic model and response characteristics of coolant shielded main pump for large nuclear power plant
摘要
Abstract
In order to improve the nuclear safety,the shaftless canned motor is applied to the reactor coolant system of the new ressurized water reactor.Because of the difference between the general shaft sealing pump and the shaftless canned pump,the shaftless canned pump has a less rotary inertia with different dynamic response characters.The main pump is sensitive to voltage and frequency fluctuation and has a less rotational inertia.Based on these characteristics,a dynamic model with friction torque taken into account of the shielded main pump is established and it has been connected to the simulation model nuclear power unit system.The effectiveness of the main pump dynamic model and the frequency and voltage disturbance response characteristics of the main pump have been simulated and verified.Besides,the influence on the core power is analyzed.The results show that the friction torque has a significant effect on the half-flow idling time of the main pump,and these characteristics should be taken into account.The influence of the frequency disturbance on the main pump speed and flow is more obvious than the voltage disturbance.Power supply quality should be improved in operation.关键词
冷却剂屏蔽主泵/核电建模/响应特性/惰转Key words
coolant shielded main pump/model of nuclear power plant/responding characteristics/idling分类
信息技术与安全科学引用本文复制引用
赵语,刘涤尘,王力,赵洁,林毅,雷勇..大型核电机组冷却剂屏蔽主泵动态模型及响应特性研究[J].电测与仪表,2018,55(2):8-14,7.基金项目
国家自然科学基金资助项目(571729264) （571729264）
国家电网公司科技项目(XT71-15-060) （XT71-15-060）
