基于Trnsys的冷水机组群控设计与节能分析  

Group Control Design and Energy Saving Analysis of Water Chillers Based on Trnsys

作　　者：黄艺新 张九根[1] 杨伟斌[1] 陈奇[1] 

机构地区：[1]南京工业大学自动化与电气工程学院,南京211800

出　　处：《科技通报》2016年第4期112-115,120,共5页Bulletin of Science and Technology

摘　　要：针对平均负荷分配策略下运行的并联冷水机组大部分时间内负荷率较低的问题,提出了冷水机组负荷率优化群控策略。以南通某大厦为研究对象,通过分析选取的蒸气压缩循环式水冷型冷水机组的能耗特性,设计了中央空调冷水机组群控方案。利用Trnsys建立了建筑区域模型以及中央空调系统能耗仿真模型,并在此基础上对比了空调系统在冷水机组平均负荷分配策略下与负荷率优化群控策略下的能耗情况。仿真结果表明加载了冷水机组负荷率优化群控策略的空调系统,节能效果显著。Parallel chillers are of low load ratio at most of time when average load allocation strategy is used. Group control strategy is proposed for this problem to optimize load ratio. Taking a building of Nantong as the study object, analyzes the energy consumption characteristics of the vapor compression style water cooled chiller selected, designs the group control strategy of water chillers. A simulation model of one layer of the building and its central air conditioning are established. The energy consumption of the central air conditioning is analyzed in two cases. The verage load allocation strategy is used in one case and the group control strategy is used in the other one. The simulation results from the model shows that energy saving performance better when group control strategy is used in the central air conditioning system.

关 键 词：冷水机组 群控 TRNSYS 能耗分析 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]