STUDY ON EMULATION MODEL FOR PRESSURE AND WATER-LEAVEL IN THE DRUM OF 360 MW UNIT

XIANG Xian-bing; XIANG ShangPower Department

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STUDY ON EMULATION MODEL FOR PRESSURE AND WATER-LEAVEL IN THE DRUM OF 360 MW UNIT

Thermal Power Generation Vol. 38, Issue 10, Pages: 20-24(2009)

更新时间：2025-09-28

- STUDY ON EMULATION MODEL FOR PRESSURE AND WATER-LEAVEL IN THE DRUM OF 360 MW UNIT
- 作者机构：
  
  重庆电力高等专科学校动力系
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published：2009
- 稿件说明：
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XIANG Xian-bing, XIANG ShangPower Department. STUDY ON EMULATION MODEL FOR PRESSURE AND WATER-LEAVEL IN THE DRUM OF 360 MW UNIT[J]. Thermal Power Generation, 2009, 38(10): 20-24.
DOI：

XIANG Xian-bing, XIANG ShangPower Department. STUDY ON EMULATION MODEL FOR PRESSURE AND WATER-LEAVEL IN THE DRUM OF 360 MW UNIT[J]. Thermal Power Generation, 2009, 38(10): 20-24. DOI：

摘要

以某电厂360MW机组为对象

建立汽包水位数学模型

并在Matlab/Simulink平台上进行仿真试验

获得了模型的动态特性。仿真结果表明

所建模型各系数为压力的函数

模型具有明显的时变性与非线性

可用于检验控制系统在大范围内的控制性能。当汽轮机调节阀和给水流量、燃料量扰动时

汽包水位变化的动态特性均表现为具有惯性和无自平衡能力的特征。

Abstract

Taking 360 MW unit in one power plnat as the object

a mathematic model of water-level in the drum has been established

and an emulation test being carried out on the Matlab/Simulink platform

obtaining the dynamic characters of the model.Results of emulation show that each coefficient of the established model is a function of the pressure.The model has remarkable time-varying behavior and non-linearity.It can be used to check control performance of the control system in a large range.In the event of disturbance occurring in turbine's govenor valve

feed water flow rate

or fuel quantity

the dynamic characters of water-level variation in the drum are all manifested as boasting inertia and having no ability for self-balance.

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