| Title |
A Study on PID Tuning Technique of a Thermal Environment Chamber |
| Authors |
신영기 ; 양훈철 ; 태춘섭 ; 장철용 ; 조수 ; 김영일 |
| Keywords |
PID ; 비례적분미분 제어 ; Root locus ; 근궤적법 ; Thermal environment chamber ; 열환경 챔버 ; Heat pump ; 열펌프 |
| Abstract |
The present study has been conducted to tune a PID controller for large ther-mal systems such as a thermal environment chamber. In spite of large thermal mass of the thermal chamber under test, its response delay time was found to be negligible mainly due to high air recirculation rate. In general, heating and cooling capacities tend to be small com-pared the size of a thermal environment chamber, which leads to long transient periods of one hour or so. In the study, a PI tuning method is suggested which makes system responses faster while reducing overshoots and hunting by utilizing efficiently proportional band of ac-tuators. |