压水堆核电站稳压器压力和水位的解耦控制研究

第37卷 第1期

核科学与工程Vol .37 No .1 2017年 2月Nuclear Science and En g ineerin g Feb .2017

压水堆核电站稳压器压力和

水位的解耦控制研究

钱 虹,周 蕾,房振鲁

(上海电力学院,上海200090)

摘要:针对核电站稳压器压力和水位的耦合现象对控制性能带来的影响,本文通过系统辨识得到加热器和上充阀门对稳压器压力二水位的被控特性数学模型,根据实验现象和耦合原理搭建出压力和水位的耦

合数学模型,采用对角矩阵法得出解耦器并简化,在MATLAB /simulink 仿真平台上验证基于此解耦器的稳压器压力和水位的解耦控制系统,取得了较好的解耦效果,提高了稳压器的控制性能,有助于核电

站运行的稳定性和安全性三

关键词:稳压器压力;水位;系统辨识;解耦控制;对角矩阵法

中图分类号:TL48 文章标志码:A 文章编号:0258-0918(2017)01-0005-07

修回日期:2016-09-20作者简介:钱 虹(1967 ),女,上海人,副教授,博士,现主要从事火电和核电站的控制研究和故障诊断The Research on Decou p lin g Control in Pressure and Water Level of PWR Pressurizer

QIAN Hon g ,ZH OU Lei ,FANG Zhen -lu

(Shan g hai Universit y of Electric Power ,Shan g hai ,200090,China )

Abstract :T o solve the affect on the control p erformance brou g ht b y the cou p lin g of p ressurizer

s p ressure and water level .In this p a p er ,the characteristics of p ressurizer s p ressure and water level controlled b y heater and char g in g flow are obtained b y s y stem identification ,then cou p lin g mathematical model is formed throu g h anal y sis of ex p eriments and theor y of cou p lin g .The dia g onal matrix method is used to calculate out the decou p ler s mathematical model .Finall y the simulation verifies that decou p lin g control s y stem of p ressurizer s p ressure and water level based on this decou p ler obtained g ood decou p lin g effect on MA TLAB /simulink simulation p latform ,thus im p roved the control p erformance of p ressurizer ,this research

contributes to the stabilit y and safet y of o p eration of nuclear p ower p lant .Ke y words :Pressure of p ressurizer ;Water level ;S y stem identification ;Decou p lin g control ;Dia g onal matrix method 5万方数据