不同节能控制技术在空调冷水系统中的碰撞
Collision of different energy saving control technologies in air conditioning chilled water systems
摘要：
基于建筑能耗分项计量系统（BMSII）中的工程数据，分析了定压差控制、定温差控制、回水温度控制、最不利末端压差控制、变压差控制、最小阻力控制等节能控制技术对末端服务品质和系统运行能耗的影响。介绍了基于末端冷量主动性调节的控制策略，即依托现代通讯技术实现对系统中所有末端调节阀开度指令信号进行统计分析、用数字控制技术取代机械控制技术的空调冷水泵变频节能控制策略。
Abstract：
Based on engineering data of the building energy metering system BMSII, analyses the effects of different energy saving control technologies including constant pressure difference control, constant temperature difference control, return water temperature control, index circuit pressure difference control, variable pressure difference control and minimum resistance control on terminal service quality and system energy consumption. Presents the control strategy of terminal cooling capacity initiative control, which is an air conditioning chilled water pump frequency conversion energy saving control strategy relying on modern communication technology to realize statistical analysis of opening command signals of terminal control valves and replacing mechanical control technology with digital control technology.
Keywords:terminalcoolingcapacityinitiativecontrol,energysavingcontroltechnology,airconditioningchilledwatersystem,chilledwaterpumpfrequencyconversion,controlstrategy