核电站稳压器压力非自衡系统的预测控制
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摘要
针对稳压器压力具有大惯性、多干扰、复杂非线性、难以获得精确数学模型的特点,以及稳压器压力开环不稳定的动态特性,本文采用非自衡系统的模型自衡化进行动态矩阵预测控制器设计,获得控制信号输出以解决该非自衡系统预测控制的工程实现问题,并以MATLAB/Simulink为仿真平台搭建控制系统。仿真对比和扰动测试表明,该控制系统具有良好的控制性能和抗扰能力,同时为动态矩阵控制算法适用于非自衡系统提供了一种可行方案。
Considering the features of the pressurizer pressure, such as large inertia, multiple disturbances, complex nonlinearity and difficulty in obtaining accurate mathematical models, and in view of the dynamic characteristics of unstable open loop of the pressurizer pressure, a predictive control system is devised in this paper. Firstly the dynamic matrix predictive controller is designed with the model self-stabilization of the non-stabilization system, and in order to solve the engineering implementation of this control method, the control signal output is obtained.Finally the control system simulation platform is built on MATLAB/Simulink. Simulation and disturbance test show a superior control performance and strong anti-disturbance ability. It provides a solution for the application of dynamic matrix control in the non-stabilization system.
Considering the features of the pressurizer pressure, such as large inertia, multiple disturbances, complex nonlinearity and difficulty in obtaining accurate mathematical models, and in view of the dynamic characteristics of unstable open loop of the pressurizer pressure, a predictive control system is devised in this paper. Firstly the dynamic matrix predictive controller is designed with the model self-stabilization of the non-stabilization system, and in order to solve the engineering implementation of this control method, the control signal output is obtained.Finally the control system simulation platform is built on MATLAB/Simulink. Simulation and disturbance test show a superior control performance and strong anti-disturbance ability. It provides a solution for the application of dynamic matrix control in the non-stabilization system.
引文
[1]张建民.核反应堆控制[M].北京:原子能出版社,2009.
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[2]李永玲,黄宇,马进,等.核电稳压器内模PID优化控制[J].动力工程学报,2013,33(11):858-864.
[3]钱虹,宋亮,周蕾,等.压水堆核电厂稳压器压力模糊控制器研究及仿真[J].核动力工程,2016,37(4):63-67.
[4]明哲东,赵福宇.稳压器动态过程的模糊控制[J].核动力工程,2006,27(3):71-74.
[5]张政江,孙优贤.基于阶跃响应的非自衡对象预测控制[J].控制与决策,2001,16(3):378-379.
[6]陈增强,孙明玮,袁著祉.具有稳定性的约束预测控制[J].系统工程学报,2000,15(3):262-266.
[7]ROSSITER J A,KOUVARITAKIS B.Feasibility and stability results for constrained stable generalized predictive control[J].Automatica,1995,31(6):863-877.
[8]ROSSITER J A,KOUVARITAKIS B.Constrained stable generalized predictive control[J].IEE.Pt.D.,1993,140(4):243-254.
[9]JIN X Z,SUN J P,LIU J Z,et al.Analysis and design of adaptive internal model control for unstable process with dead time[C]//Proceedings of the Third International Conference on Machine Learning and Cybernetics.Shanghai:IEEE,2004:983-987.
[10]钱积新,赵均,徐祖华.预测控制[M].北京:化学工业出版社,2007.