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基于热量流法的清洁供热网络延迟分布特性与扰动控制分析

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在双碳战略背景下,随着极端天气的频繁出现和用户热负荷的不断增加,进一步增加供热系统的稳定性和降低供热能耗,是供热网络的重要发展方向.本文针对供热网络的典型扰动控制问题,基于供热网络的物理模型,构建供热网络全环节的动态热量流模型,分析供热网络中各主要设备及供热网络整体的延迟分布特性问题,探索了供热网络实际供热策略以及供暖扰动的影响和控制等问题.结果表明供热网络的延迟主要集中在散热器侧,散热器延迟时间约占整个供热网络延迟时间的86.6%;本文以北京某日室外温度为例探究实际供热策略,模拟在面对供热扰动时,所采取新的供热策略节能分别为2.61%与2.91%.
Analysis of Delay Distribution Characteristics and Disturbance Control of Clean Heating Network Based on Heat Current Method
Under the background of double carbon strategy,with the frequent occurrence of extreme weather and the increasing heat load of customers,it is an important development direction of the heating network to further increase the stability of the heating system and reduce the heating energy consumption.This paper addresses the typical disturbance control problems of heating networks,constructs a dynamic heat flow model of the whole link of the heating network based on the physical model of the heating network,analyzes the problems of delay distribution characteristics of each major equipment in the heating network and the heating network as a whole,and explores the actual heating strategy of the heating network as well as the influence and control of heating disturbances.The results show that the delay of the heating network is mainly concentrated in the radiator side,and the delay time of the radiator accounts for about 86.6%of the delay time of the whole heating network;this paper explores the actual heating strategy by taking the outdoor temperature of a day in Beijing as an example,and simulates that the energy saving of the new heating strategy adopted in the face of the heating disturbance is 2.61%and 2.91%,respectively.

heat supply networkheat currentheat disturbancecontrol strategy

马腾宇、郝俊红、田亮、杨云溪、方王刚、戈志华

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华北电力大学能源动力与机械工程学院,北京 102206

新能源电力系统国家重点实验室(华北电力大学),北京 102206

供热网络 热量流 供热扰动 控制策略

国家自然科学基金

52176068

2024

工程热物理学报
中国工程热物理学会 中国科学院工程热物理研究所

工程热物理学报

CSTPCD北大核心
影响因子:0.4
ISSN:0253-231X
年,卷(期):2024.45(5)
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