核电厂堆芯轴向功率偏差的控制

Control Measures of Axial Power Deviation of Nuclear Power Plant

核电厂堆芯轴向功率偏差表征堆芯内功率轴向功率分布均匀程度,其关系到堆芯内燃料组件的运行安全,是一个非常重要的控制参数。文章针对核电厂堆芯轴向功率分布控制困难的情况,通过深入分析影响堆芯轴向功率偏差的各项因素,结合实际机组运行过程中不同工况下的各因素变化特点,给出了核电厂不同工况的轴向功率偏差控制措施。

The axial power deviation of the nuclear power plant represents the uniformity of the axial power distribution in the core,which is related to the operation safety of the fuel assembly in the core and is a very important control parameter.Aiming at the difficulty in controlling the axial power distribution of the nuclear power plant,through in-depth analysis of the factors affecting the axial power deviation of the core,and based on the changing characteristics of various factors under different operating conditions during the operation of the actual unit,the control measures of axial power deviation in different working conditions of nuclear power plant are given.