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作 者:周恒 杜亚辰 ZHOU Heng;DU Yachen(Wuxi Metro Construction Co.,Ltd.,214023,Wuxi,China)
出 处:《城市轨道交通研究》2024年第S2期74-82,93,共10页Urban Mass Transit
摘 要:[目的]地铁通风空调系统是一个多变量、非线性、延迟大、耦合度高的复杂系统,要实现通风空调系统能耗控制最优化,需要对包括冷水机组、冷冻水泵、冷却水泵、冷却塔在内的冷源系统,以及对包括新风机、空调机、风机盘管等在内的末端系统进行全面分析,研究地铁通风空调系统能耗控制模型。[方法]制冷空调系统主要由冷水机组、冷冻水泵、冷却水泵、冷却塔和空调箱风机5个设备组成,分析了制冷空调系统能耗模型的目标函数,以及5个主要设备能耗模型的目标函数;分析了变量参数的物理约束条件和设备间的相互约束条件,基于此建立了制冷空调系统能耗优化模型;对地铁通风空调系统能耗智能控制模型进行了实例验证。[结果及结论]与优化策略实施前相比,优化策略实施后,地铁通风空调系统能耗降低了23.54%。实例验证表明,所提出的地铁通风空调系统能耗控制模型和优化策略合理可行,节能效果显著。[Objective]The metro ventilation and air⁃condi⁃tioning system is a complex system characterized by multiple variables,nonlinearity,significant delays,and high coupling.To optimize energy consumption control in this system,it is essential to comprehensively analyze both the cooling source system comprising chiller units,chilled water pumps,cooling water pumps,and cooling towers,as well as the terminal sys⁃tem,including fresh air fans,air⁃conditioning units,and fan coil units.It is aimed to develop an energy consumption con⁃trol model for metro ventilation and air⁃conditioning systems.[Method]The refrigeration and air⁃conditioning system pri⁃marily consists of five components:the chiller units,chilled water pumps,cooling water pumps,cooling towers,and air⁃conditioning unit fans.The objective functions of the energy consumption model for the refrigeration and air⁃conditioning system are analyzed,as well as the objective functions of the five main components.It also examines the physical constraints of variable parameters and the mutual constraints between de⁃vices,upon which an energy consumption optimization model for the refrigeration and air⁃conditioning system is established.The intelligent control model for energy consumption in metro ventilation and air⁃conditioning systems is then validated through practical cases.[Result&Conclusion]After imple⁃menting the optimization strategy,energy consumption in the metro ventilation and air⁃conditioning system is reduced by 23.54%compared to pre⁃optimization.The case validation shows that the proposed energy consumption control model and optimization strategy for metro ventilation and air⁃conditioning system are both reasonable and feasible,with significant ener⁃gy⁃saving effects.
分 类 号:U231.5[交通运输工程—道路与铁道工程]
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