摘要
核反应堆功率控制系统主要负责控制反应堆的启停、功率调节和事故情况下的安全运行,是核电厂安全运行最重要的系统之一。为解决传统分数阶比例积分微分(FOPID)控制器在面对棒速限制和堆芯扰动时存在控制效果下降的问题,本文基于分数阶点堆中子动力学方程及热工水力效应建立了分数阶反应堆堆芯模型,设计了双层模糊逻辑控制体实现内层模糊论域的自适应调节,建立了变论域模糊FOPID控制器并在多瞬态条件下评估了控制的性能。仿真结果表明:在低棒速限制条件下,常规的FOPID控制器的控制能力大幅下降,基于双层模糊策略的变论域模糊FOPID控制器可以通过调节内层模糊论域范围保持出色的调节性能,具有更短的调节时间,更小的调节误差和更强的鲁棒性。
The nuclear reactor power control system is mainly responsible for controlling the start-stop of the reactor,power regulation and safe operation in case of accidents,and is one of the most important systems for the safe operation of nuclear power plants.In order to solve the problem that the control effect of the traditional FOPID controller decreases in the face of rod velocity limitation and core disturbance,a fractional-order reactor core model is established based on the fractional neutron point kinetics model with consideration of the thermo-hydraulic effect,a doublelayer fuzzy logic controller is designed to manage the structure of the inner fuzzy logic universe range,a variable universe fuzzy FOPID controller is established,and the control performance is evaluated under multi-transient conditions.The simulation results show that under the condition of low rod speed limitation,the control ability of the conventional FOPID controller is greatly reduced,and the variable universe fuzzy FOPID controller based on the double-layer fuzzy strategy can maintain excellent adjustment performance by adjusting the internal structure of the controller,with shorter adjustment time,smaller adjustment error and stronger robustness.
作者
孙贺涛
栾秀春
Sun Hetao;Luan Xiuchun(College of Nuclear Science and Technology,Harbin Engineering University,Harbin,150001,China)
出处
《核动力工程》
北大核心
2025年第S2期50-56,共7页
Nuclear Power Engineering
基金
哈尔滨工程大学核学科“核+X”联合创新基金(HLJ202404)。
关键词
核反应堆功率控制
模糊控制方法
变论域策略
分数阶反应堆模型
Nuclear power control
Fuzzy logic method
Variable universe fuzzy method
Fractional-order reactor model
