基于Near-Optimal整体能效控制的某制冷机房系统高效化改造  

Efficient Renovation of a Chiller Plant System Based on Near-Optimal Control of Overall Energy Efficiency

作　　者：罗平 LUO Ping(Shanghai Shuangliang Smart Energy Technology Co.,Ltd.,Shanghai 201107,China)

机构地区：[1]上海双良智慧能源科技有限公司,上海201107

出　　处：《机电产品开发与创新》2023年第3期150-154,共5页Development & Innovation of Machinery & Electrical Products

摘　　要：通过高效设备、高效控制、高效输配和智慧运维等技改措施对某酒店进行了既有制冷机房高效机房化改造升级,实现了预期的能效提升目标。其中在高效控制方面,采用了自主研发的中央空调强弱电一体化高效控制柜,该控制柜借鉴了ASHRAE Handbook中提出的基于单一变量函数关系的Near-Optimal整体能效控制理念,引入了整体高效调控策略(简称N-O策略),用于冷却塔台数和频率、冷却水泵频率的整体高效调控,实现了制冷机房冷却系统(冷机+冷却水泵+冷却塔)的整体高效调控,使冷源系统全年平均运行能效比从4.5提升到了5.11,实现了高效制冷机房改造目标。Through technical renovation measures such as efficient components,optimized control systems,efficient pumping systems,and smart operation and maintenance software,an existing chiller plant system of a hotel has been upgraded with efficient chiller plant system,achieving the expected energy efficiency improvement target.Among them,in terms of optimized control systems,a self-developed strong and weak electricity integrated optimal control cabinet of chiller plant system is adopted.The control cabinet draws on the concept of Near-Optimal control of overall energy efficiency based on the single variable function relationship proposed in the ASHRAE Handbook,and introduces an overall efficient control strategy(referred to as N-O strategy).By adjusting the number and frequency of cooling towers and the frequency of condenser water pumps,the overall efficient control of the cooling system(chillers&condenser water pumps&cooling towers)is finally realized.In the end,the annual average operational energy efficiency ratio of chiller plant system was increased from 4.5 to 5.11,and the goal of high-efficiency refrigeration was realized.

关 键 词：高效制冷机房 Near-Optimal整体能效控制 N-O策略 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]