摘要
基于多联式空调系统状态空间法模型,对一套四个室内机和一台室外机的多联机在制冷模式下的动态特性进行了仿真研究。分析了室内外温度、室内外机风量、压缩机频率和电子膨胀阀开度等参数的变化对系统运行状态参数(如蒸发温度、冷凝温度、压缩机排气温度、过冷度、过热度)的动态变化的影响规律。为制定和优化多联机控制系统的控制策略和控制算法提供了有效的依据。
The dynamic behavior of a variable refrigerant flow(VRF)system with one outdoor unit(ODU)and four indoor units(IDU)was investigated based on the dynamic simulation model of state-space method.The responses of the state parameters of the VRF system such as the evaporating temperature,the condensing temperature,the compressor discharge temperature,the subcooling degree and the superheating degree were demonstrated under the varying parameters such as ODU air temperature,ODU air volume,IDU air temperature,IDU air volume,compressor speed and electronic expansion openings.It would be helpful to design and optimize the control strategy and algorithm of VRF system.
作者
司春强
邵双全
Si Chunqiang;Shao Shuangquan(Huashang International Engineering Co.,Ltd.,Beijing 100069,China;CAS Key Laboratory of Cryogenics,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China)
出处
《低温与超导》
CAS
北大核心
2019年第9期56-61,共6页
Cryogenics and Superconductivity
基金
国家自然科学基金(51676199)资助
关键词
多联机
动态特性
制冷
空调
Variable refrigerant flow(VRF)
Dynamic behavior
Cooling mode
Air conditioning
