针对立式自然循环蒸汽发生器，采用模块化机理建模的方法建立了蒸汽发生器非线性数学模型。该模型包括16个控制体，对每个控制体采用集总参数法建立数学模型并进行推导，得到了拥有12个状态变量的数学模型。采用龙格库塔法对模型进行解算。对该模型进行仿真试验，验证了该模型的动态特性。利用该模型可以分析蒸汽发生器的动态特性，设计蒸汽发生器控制器，具有一定的工程应用价值。
According to the vertical natural circulation steam generator, a mathmatic model is build by modularized mechanism modeling method. The mathmatic model includes 16 control volumes. According to the control volumes the mathmatic model with 12 state variables is created and deduced by lumped parameter method. The mathematical model of vertical natural circulation steam generator is resolved by Runge-Kutta method. The model is verified by simulation test. The mathmatic model can be used to analyze the dynamic characteristics of steam generator,and design the controller. It has a definite application value.
2017,39(3): 113-117,126 收稿日期：2016-05-24
DOI：10.3404/j.issn.1672-7619.2017.03.023
分类号：TP15
作者简介：邹海(1978-),男,高级工程师,研究方向为核动力装置控制技术
参考文献：
[1] SUN Bao-zhi, HAN Wen-jing, BAO Jie, et al. Dynamic characteristics analysis of steam generator based on drift-flux[J]. Journal of Chemical Industry and Engineering, 2013, 64(S1):64-52.
[2] ZHANG Yu, SUN Bao-zhi, ZHANG Guo-lei, et al. One-dimensional homogeneous flow model and heat transfer performance of steam generator[J]. Atomic Energy Science and Technology, 2012, 46(1):57-62.
[3] 《Steam Generator》Drafting group of steam generator[M]. BeiJing:Atomic Energy Press, 1982.
[4] GUIMARAES L N F, OLIVERIRA Jr. N S, BORGES E M. Derivation of a nine variable model of a U-tube steam generator coupled with a three-element controller[J]. Applied Mathematical Modelling, 2008, 32:1027-1043
[5] WALTER. Dynamic modeling of vertical U-tube steam generators for operational safety system[D]. U.S.A:MIT, 1982:20-33.
[6] GUO Hai-hong, Working process dynamic simulation of steam generator[D]. Haerbin:Harbin Engineering University. 2007.
[7] ZHANG Hai-xia. PWR steam generator modeling and dynamic analysis[D]. Beijing:North China Electric Power University, 2007.
[8] ZHANG Long-fei, ZHANG Da-fa. U-tube steam generator model and dynamic simulation[J]. Boiler Technology, 2006(4):9-12.
