| Title |
A Design of High Speed SRM Drive System |
| Authors |
이주현(Lee, Ju-Hyun) ; 이동희(Lee, Dong-Hee) ; 안진우(Ahn, Jin-Woo) |
| Keywords |
SRM ; High Speed ; 4-Level Inverter ; DSP2812 |
| Abstract |
This paper proposes a high speed SRM drive system for blower application with a new 4-level inverter and precise excitation position generator. For a high speed blower, a proper inverter and control method are proposed and the output characteristics are analyzed. In order to get a fast build-up and demagnetization of excitation current, a 4-level inverter system is proposed. The proposed 4-level inverter has additional charge capacitor, power switch and diode in the conventional asymmetric converter. The charged high voltage is supplied to the phase winding for fast current build-up, and demagnetization current is charged to additional capacitor of the 4-level inverter. In addition, a precise excitation position generator can reduce turn-on and turn-off angle error according to sampling period of digital control system. The proposed high speed SRM drive system is verified by computer simulation and experimental results. |