Modeling of drum water level in power plant based on system dynamics

WEI Le; YAN Yuanyuan; JIANG Xiaolong; HOU Junhong; QIN Tengteng; YUAN Zhaoxiong

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Modeling of drum water level in power plant based on system dynamics

Thermal Power Generation Vol. 45, Issue 1, Pages: 65-69(2016)

更新时间：2025-09-28

- Modeling of drum water level in power plant based on system dynamics
- 作者机构：
  
  1. 华北电力大学控制与计算机工程学院
  2. 神华神皖合肥庐江发电有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2016
- 稿件说明：
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WEI Le, YAN Yuanyuan, JIANG Xiaolong, et al. Modeling of drum water level in power plant based on system dynamics[J]. Thermal Power Generation, 2016, 45(1): 65-69.
DOI：

WEI Le, YAN Yuanyuan, JIANG Xiaolong, et al. Modeling of drum water level in power plant based on system dynamics[J]. Thermal Power Generation, 2016, 45(1): 65-69. DOI：

摘要

为探究电站锅炉汽包水位的动态特性

使其在机组运行过程中能够保持在正常范围内

基于质量和能量守恒定律

应用系统动力学原理

以因果回路图和存量流量图为载体

从系统的运行机理出发

建立了汽包水位的系统动力学模型。并以河北清苑热电厂亚临界300MW机组锅炉为对象

在Vensim PLE环境下将所建模型与经典模型进行仿真对比分析。结果表明:汽包水位系统动力学模型与经典汽包水位模型仿真结果相近

且准确性较高;汽包水位系统动力学模型能够很好地表征系统内部的质量与能量的关系

具有适当的复杂度和层次清晰的结构。

Abstract

To investigate the dynamic characteristics of water level in utility boiler drums and keep the drum water level within its normal range

this paper established the system dynamic model for the drum water level by using the principle of system dynamics and taking causal loop diagrams and stock and flow diagrams as its carriers

based on the mass and energy conservation laws

from the working mechanism of the system based on the macroscopic angle.Using the operation data of Hebei Qingyuan Power Plant 300 MW subcritical drum boiler

the simulation was carried out in Vensim PLE environment.In addition

the system dynamic model was compared with the conventional model.The results show that the simulation results by the system dynamic model agree well with that of the conventional model

verifying the correctness of the proposed model.The system dynamic model can well represent the matter and energy relations within the system

and has appropriate complexity and clear structure.

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Related Institution

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