INDEPENDENT CONTROL OF CAPACITY AND SUPERHEAT FOR A VARIABLE SPEED REFRIGERATION SYSTEM

摘要：

In this paper, we suggest an independent control method based on general PI control law to control the refrigeration system effectively. In the variable speed refrigeration system, capacity and superheat are controlled by inverters and electronic expansion valves respectively for saving energy and improving cost performance. Thus, we propose decoupling model to eliminate the interfering loop and each transfer function is obtained from number of experiments at first. Next, we design PI controller and verify the performance of controller by numerical simulations. Finally, we prove that the independent control design can establish not only precise control but also high COP of the variable speed refrigeration system through the experiments.

作者: Hua LI S.K.JEONG

作者单位: Department of Refrigeration and Air-Conditioning Engineering, Graduate School, Pukyong National Univ Division of Mechanical Engineering, Pukyong National University, San 100, Yongdang-dong,Nam-gu, Busa

会议类型: 国际会议

会议名称: The 22nd International Congress of Refrigeration(第22届国际制冷大会)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-21（万方平台首次上网日期，不代表论文的发表时间）