CPR1000核电机组换料后再启动升功率策略优化研究
Optimization of Power Ramp Rate in CPR1000 Reactor Restarting
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摘要: 根据大量核电厂运行经验反馈和模拟计算分析，中国改进型三环路压水堆（CPR1000）核电机组采用的升功率技术限值仍有较大优化空间。本文从升功率速率和阈值功率水平2个角度对换料后反应堆再启动以及达到满功率后运行模式进行模拟，升功率过程至达到满功率后一般经历几十个小时后燃料棒就能达到参考状态，采用优化升功率速率可以将能力因子提升0.1%左右。Abstract: Restart strategy applied in CPR1000 units can be further improved according to the operation experience and the simulation conducted by software. This paper simulates the restarting and full power operating modes of the reactor in terms of ramp rate and Tthreshold power level. Conditioning occurs after tens of hours of operation at full power. The capacity factor can be increased about 0.1% by optimizing the ramp rate.
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