加速器驱动次临界系统堆芯功率的自抗扰控制  

Active Disturbance Rejection Control of Core Power for Accelerator Driven Subcritical System

作　　者：郭伟 石波 张益林 GUO Wei;SHI Bo;ZHANG Yilin(China Nuclear Power Technology Research Institute Co.,Ltd..,Shenzhen 518000,Guangdong Province,China)

机构地区：[1]中广核研究院有限公司,广东深圳518000

出　　处：《动力工程学报》2022年第3期242-248,共7页Journal of Chinese Society of Power Engineering

摘　　要：提出了一种基于非线性自抗扰控制(ADRC)技术的加速度驱动次临界系统控制(ADS)堆芯功率控制方法。首先,采用带外源的中子动力学方程和能量守恒方程搭建ADS堆芯系统非线性模型,利用微小摄动理论对模型进行线性化处理,得到双输入双输出传递函数模型;其次,基于该模型设计堆芯功率自抗扰控制系统,利用“分离性原理”对控制参数进行整定;最后,利用Matlab平台搭建ADS堆芯系统非线性模型和ADRC控制器模型,对ADRC控制与PID控制进行对比分析。结果表明:所设计的控制系统具有更好的控制性能,证明了将ADRC技术应用在ADS堆芯系统控制方面是可行的。An ADS core power control method based on nonlinear active disturbance rejection control(ADRC)technology was proposed.Firstly,the nonlinear mathematical model of ADS core system was established by using point kinetic equations with an external neutron source and the energy conservation equation.The model was linearized based on micro-disturbance linearization method,so as to obtain the dual input and dual output transfer function model.Secondly,the ADRC system of core power was designed based on the proposed model,and the controller parameters were adjusted by separation principle.Finally,both the ADS core nonlinear model and ADRC control model were built by Matlab,and the performance between ADRC control and PID control was compared.Results show that the designed control system shows better control effect,proving that the application of ADRC technology on ADS core power control is feasible.

关 键 词：反应堆堆芯 次临界系统 非线性模型 自抗扰控制 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]