Title |
A PID Control of Electric Heater for PEM |
Authors |
장영준 ; 박영칠 ; 정광섭 ; 한화택 ; 이정재 |
Keywords |
PEM ; 개별공조시스템 ; Electric heater control ; 전기히터제어 ; P control ; 비례제어 ; PD control ; 비례-미분제어 ; PID control ; PID 제어 |
Abstract |
The work presented here is an implementation of PID control to achieve a required supply air temperature in PEM (personal environment module). In PEM, the air is heated to the required temperature while it flows through the supply duct, without any mixing chamber. This makes the control of air temperature in PEM difficult. Linear dynamic model of heat transfer in PEM is first obtained. Then P, PD and PID type control systems, to provide the rapid response without overshoot and saturation, are designed and implemented experimentally. Data obtained shows that the control system satisfies the design criteria and works properly in controlling the supply air temperature. |