第三代核電堆型AP1000運行特點及堆芯仿真研究
發(fā)布時間:2018-04-03 05:06
本文選題:第三代核電堆型 切入點:AP 出處:《電網(wǎng)技術》2014年05期
【摘要】:第三核電堆型AP1000有望成為我國未來核電發(fā)展的主力堆型。分析AP1000的設計理念及其功率運行特點,結果表明,AP1000機組具有良好的負荷調整特性,能參與電網(wǎng)的調峰運行。在掌握AP1000堆芯反應性物理特點及與中子通量耦合特性的基礎上,建立堆芯仿真模型。仿真研究了堆芯內小擾動和堆芯外大擾動情況下,堆芯狀態(tài)變量和控制變量的相互作用關系。結果表明,狀態(tài)變量引起的反應性主要應對小擾動后堆芯穩(wěn)定運行問題,控制變量引起的反應性保證堆芯在大擾動后能按照擾動軌跡運行。
[Abstract]:The third nuclear reactor type AP1000 is expected to become the main type of nuclear power development in China in the future.The design concept and power operation characteristics of AP1000 are analyzed. The results show that the AP1000 unit has good load adjustment characteristics and can participate in the peak-shaving operation of power grid.On the basis of mastering the physical characteristics of reactivity and coupling with neutron flux of AP1000 reactor core, a core simulation model is established.The interaction between the core state variables and the control variables is studied by simulation under the condition of small disturbance inside the core and large disturbance outside the core.The results show that the reactivity caused by the state variables should be mainly concerned with the stable operation of the core after small disturbance, and the reactivity caused by the control variables can ensure that the core can run according to the disturbance trajectory after the disturbance.
【作者單位】: 中國電力科學研究院;
【分類號】:TM623.7
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