蒸汽发生器非线性机理模型与动态特性分析  

Nonlinear Mechanism Model and Dynamic Characteristic Analysis of a Steam Generator

作　　者：魏志伟 王明春[1] 张雨飞[1] 王馥郁 耿健[1] Wei Zhiwei;Wang Mingchun;Zhang Yufei;Wang Fuyu;Geng Jian(School of Energy and Environment,Southeast University,Nanjing 210096,China)

机构地区：[1]东南大学能源与环境学院,南京210096

出　　处：《发电设备》2018年第4期261-267,共7页Power Equipment

摘　　要：采用分区与集总参数结合的方式对蒸汽发生器进行机理分析,建立了一个三输入二输出的动态机理模型,将其转化为基于状态空间的非线性动态模型并做出仿真分析,提供了一个较为完整的建模方式以及模型的处理办法。结果表明:所建立的模型具有结构全面、完整、精确的特点,与理论分析一致,有利于蒸汽发生器水位控制的进一步研究。A three-input two-output dynamic model was established for a steam generator, based on mechanism analysis of the generator using the method of partition combined with lumped parameters. The mechanism model was then transformed into a nonlinear dynamic one based on state space, with which numerical simulations were conducted, thus to provide a relatively complete way of model building and treatment. Results show that the model developed has a complete structure, with high accuracy, agreeing well with theoretical analysis, which is helpful for further study on water level control of steam generators.

关 键 词：蒸汽发生器 机理模型 非线性 动态分析 

分 类 号：TL353.13[核科学技术—核技术及应用] TL33