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本文通过核电站压水堆各种棒控方式的研究,在满足电站负荷调节的条件下,发现控制棒组价值越小,越有利于改善堆芯功率分布,同时考虑到电站压水堆可以不用过大价值棒组控制氙振荡,进而提出了一种改进型棒控方式:安全棒(A)+功率棒(G)+调节棒(T).即用价值约1%的棒组执行负荷调节,用价值约2%的棒组控制功率分布及氙振荡,其余棒组列为安全棒.从而取得了既能改善堆芯功率分布,又能有效地实施负荷调节和功率分布控制的效果.
Based on the research of various bar control methods of PWR in nuclear power plant, it is found that the smaller the value of control bar is, the more beneficial it is to improve the core power distribution under the conditions of load regulation of power station. The large value rod set controls the xenon oscillation, and then proposes an improved rod control method: safety rod (A) + power rod (G) + adjusting rod (T) The power distribution and xenon oscillation are controlled by a rod set with a value of about 2%, and the remaining rods are classified as safety rods, thereby achieving the effect of improving both the core power distribution and the load regulation and power distribution control effectively.