| Title |
Operating Number Control of Compressors Based on Cooperative Logic for a High Efficiency Centrifugal Water Chiller |
| Authors |
Seok-Kwon Jeong ; Seung-Kwan Lim ; Keon-Su Ryu3 |
| DOI |
http://dx.doi.org/10.6110/KJACR.2015.27.5.233 |
| Keywords |
터보냉동기 ; 대수제어 ; 협조로직 ; 가·감속제어기 Centrifugal water chiller ; Operating number control ; Cooperative logic ; Speed-up and speed-down controller |
| Abstract |
This paper discusses compressors operating number control strategy using cooperative logic to cope with variable partial load for high efficiency of a centrifugal water chiller. The cooperative logic is composed of a speed-up and speed-down controller, enabling smooth operation of compressors and equivalent distribution of thermal load in each compressor. This centrifugal water chiller design can be operated with high efficiency without incurring excessive energy waste and large transient phenomena at partial load states. Simulations in MATLAB and experiments in a real chiller system were conducted and verified the high efficiency control of a centrifugal water chiller achieved by the suggested strategy. |