区域能源站优化设计方案全年能耗分析与对比  

Annual Energy Consumption Analysis and Comparison of Optimized Design Schemes for Regional Energy Stations

作　　者：章乾 徐朝阳 毛世权 杨禹 耿安然 ZHANG Qian;XU Zhaoyang;MAO Shiquan;YANG Yu;GENG Anran(SPIC ZHUHAI HENGQIN ENERGY DEVELOPMENT CO.,LTD,Zhuhai 519031,China)

机构地区：[1]国家电投珠海横琴能源发展有限公司,珠海519031

出　　处：《制冷》2023年第3期52-57,共6页Refrigeration

摘　　要：本文介绍了一种大型区域能源站冰蓄冷供冷系统,该系统主机采用4台永磁同步变频离心式冰蓄冷双工况机组和1台永磁同步变频离心式冷水机组。该系统具有控制灵活、制冷效率高、能耗低等特点。本文分别采用定频设备常规控制(方案一)、变频设备常规控制(方案二)和变频设备优化控制(方案三)对该冰蓄冷系统分别进行全年逐时能耗仿真,分析变频控制相对于定频控制的节能性和经济性。从仿真结果来看,方案三的系统综合能效比为4.5。经过设备优化、系统控制策略的优化,可使空调系统能效从3.2提升到4.5,系统能效提升39.1%;可使空调系统总耗电量从40.0 kWh/m^(2)降到28.7 kWh/m^(2),能耗降低28.1%;可使系统运行总电费从21.9元/m^(2)降到15.9元/m^(2),其节费率为27.5%。This paper introduces an ice storage and cooling system for a large regional energy station.The host of the system uses 4 permanent magnet synchronous frequency conversion centrifugal ice storage dual-condition units and 1permanent magnet synchronous frequency conversion centrifugal water chiller.The system has the characteristics of flexible control,high cooling efficiency and low energy consumption.This paper uses conventional control of fixedfrequency equipment(program I),conventional control of frequency conversion equipment(program 2)and optimal control of frequency conversion equipment(program 3)to simulate the energy consumption of the ice storage system throughout the year,respectively,and analyzes the energy-saving and economy of frequency conversion control relative to frequency conversion control.From the simulation results,the systematic comprehensive energy efficiency ratio of SchemeⅢis 4.5.Through equipment optimization and system control strategy optimization,the energy efficiency of the air-conditioning system can be improved from 3.2 to 4.5,and the energy efficiency of the system can be improved by39.1%;the total power consumption of the air-conditioning system can be reduced from 40.0 kWh/m^(2)to 28.7 kWh/m^(2),and the energy consumption can be reduced by 28.1%;it can make the system run.The total electricity bill was reduced from 21.9 yuan/m^(2)to 15.9 yuan/m^(2),with a saving rate of 27.5%.

关 键 词：能耗仿真 永磁同步 系统综合能效比 节能 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]