| 供热机组负荷-压力简化模型及特性分析 |
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| 引用本文： | 刘吉臻,王琪,田亮,刘鑫屏.供热机组负荷-压力简化模型及特性分析[J].动力工程,2012,32(3):192-196,228. |
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| 作者姓名： | 刘吉臻 王琪 田亮 刘鑫屏 |
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| 作者单位： | 1. 华北电力大学控制与计算机工程学院,保定,071003
2. 华北电力大学控制与计算机工程学院,保定071003／内蒙古电力科学研究院,呼和浩特010020 |
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| 基金项目： | 教育部博士点基金资助项目，国家自然科学基金重点资助项目 |
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| 摘 要： | 在纯凝汽式机组负荷-压力对象简化非线性动态模型基础上,结合对抽汽式供热机组供热部分热力系统的分析,依据基本物质和能量守恒定律,建立了供热机组发电负荷-汽轮机前压力-供热抽汽流量与锅炉燃料量-汽轮机高调门开度-抽汽调节蝶阀开度的微分方程形式的动态模型.通过仿真实验证明：供热机组与纯凝汽式机组发电负荷-汽轮机前压力对象控制特性不存在显著差异;供热机组可采用更为灵活的控制方式以提升发电负荷调节速率.
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| 关 键 词： | 供热机组 负荷 压力 动态模型 协调控制 |
Simplified Model and Characteristic Analysis of Load-Pressure Object in Heat Supply Units |
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| LIU Ji-zhen,WANG Qi,TIAN Liang,LIU Xin-ping.Simplified Model and Characteristic Analysis of Load-Pressure Object in Heat Supply Units[J].Power Engineering,2012,32(3):192-196,228. |
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| Authors: | LIU Ji-zhen WANG Qi TIAN Liang LIU Xin-ping |
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| Affiliation: | 1.School of Control and Computer Engineering,North China Electric Power University,Baoding 071003,China;2.Inner Mongolia Electric Power Research Institute,Hohhot 010020,China) |
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| Abstract: | Based on simplified nonlinear dynamic model of load-pressure object for pure condensation unit,in combination of analysis on thermodynamic system in heat-supply part of extraction steam turbine,according to the basic law of conservation of energy and mass,a differential equation model of load-throttle pressure-extraction steam flow versus boiler fuel flow-turbine governor valve＇s opening-extraction control valve＇s opening was constructed for heat supply units.Simulation results show that there is no significant difference between heat supply units and pure condensation units in the control characteristics of load-throttle pressure object.For heat supply units,it is recommended to take more flexible control modes to promote the load up/down rate. |
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| Keywords: | heat supply unit load pressure dynamic model coordinated control |
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