自然循环蒸汽发生器的水位动态特性分析

邱磊磊; 张贤山; 魏新宇; 孙培伟

doi:10.13832/j.jnpe.2021.S2.0005

自然循环蒸汽发生器的水位动态特性分析

doi: 10.13832/j.jnpe.2021.S2.0005

西安交通大学核科学与技术学院，西安，710049

基金项目: 国家自然科学基金资助项目（11875218）；中央高校基本科研业务费专项资金资助（xjh012020032）

详细信息

作者简介:
邱磊磊（1996—），男，博士研究生，从事核反应堆控制与仿真研究，E-mail: leileiqiu@stu.xjtu.edu.cn

通讯作者:
魏新宇，E-mail: xyuwei@mail.xjtu.edu.cn

中图分类号: TL365
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- 被引次数: 0
出版历程
- 收稿日期: 2021-07-19
- 录用日期: 2021-12-06
- 修回日期: 2021-09-12
- 刊出日期: 2021-12-29

Analysis of Dynamic Characteristics of Water Level of Natural Circulation Steam Generator

School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi’an, 710049, China

摘要

摘要: 准确地获得自然循环蒸汽发生器（SG）水位的动态特性，对于SG水位控制系统的设计具有重要的指导意义。本文基于流体质量守恒、能量守恒和动量守恒方程，建立了SG的十六阶非线性动态模型（N-M）；基于微扰理论对N-M线性化得到了SG的传递函数模型（T-M）；在MATLAB/Simulink仿真平台上对2种模型引入相同的扰动，仿真结果表明：两者瞬态结果一致，均能正确反映SG的水位动态特性。本文的研究有助于理解SG水位变化的机制，为SG的水位控制系统设计提供分析工具。
- 蒸汽发生器（SG） /
- 动态特性 /
- 非线性模型 /
- 传递函数
Abstract: Accurately obtaining the dynamic characteristics of natural circulation steam generator (SG) water level has important guiding significance for the design of SG water level control system. In this paper, based on the equations of mass conservation, energy conservation and momentum conservation of fluid, the sixteenth-order nonlinear dynamic model (N-M) of SG is established; based on the perturbation theory, the transfer function model (T-M) of SG is obtained by linearizing N-M; the same disturbance is introduced to the two models on the MATLAB/Simulink simulation platform, and the simulation results show that the transient results of the two models are consistent and can correctly reflect the water level dynamic characteristics of SG. The study of this paper is helpful to understand the mechanism of SG water level change and provide an analysis tool for the design of SG water level control system.
- Steam generator (SG) /
- Dynamic characteristics /
- Nonlinear model /
- Transfer function

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图 1 SG模型控制体划分

Figure 1. Control Volume Division of SG Model

下载: 全尺寸图片幻灯片

图 2 给水流量扰动下SG瞬态结果

Figure 2. SG Transient Results of Feedwater Flow Disturbance

下载: 全尺寸图片幻灯片

图 3 出口蒸汽流量扰动下SG瞬态结果

Figure 3. SG Transient Results of Outlet Steam Flow Disturbance

下载: 全尺寸图片幻灯片

参考文献(8)

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