| Title |
Four Quadrant Operations of DC Separately-Excited Motor by the Two Phase Chopper System with Combined Output |
| Authors |
정연택 ; 한경희 ; 김용주 ; 이승환 ; 방이석 |
| Abstract |
In order to control DC motors for electric cars by chopper system, four quadrant operations - forward powering, forward regenerative braking, reverse powering, reverse regenerative braking - are needed. For the four quadrant operations, the separately - excited DC motors are used in this study. The conversion of each quadrant operation has been obtained by 1) adopting the two phase chopper system with combined output for the armature control, and 2) the single phase chopper system for the field control. |