Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1998.07f
- /
- Pages.1947-1950
- /
- 1998
A Gear Changing Techniques of Inverter for Variable Speed Drives on Traction Motor
견인용 전동기의 가변속 운전을 위한 인버터의 PWM패턴 절환 기법
- Seo, Young-Min (Dankook University) ;
- Jang, Dong-Ryul (Dankook University) ;
- Park, Hae-Dong (Dankook University) ;
- Hong, Soon-Chan (Dankook University) ;
-
Park, Young-Jeen
(Wonju National College)
;
-
Song, Joong-Ho
(KIST)
- 서영민 (단국대학교 전기공학과) ;
- 장동렬 (단국대학교 전기공학과) ;
- 박해동 (단국대학교 전기공학과) ;
- 홍순찬 (단국대학교 전기공학과) ;
-
박영진
(원주대학 전기과)
;
-
송중호
(한국과학기술연구원)
- Published : 1998.07.20
Abstract
GTO inverter used for traction motor drives includes harmonics in the output current and torque by the limitation of switching frequency. However, the hybrid PWM method, using SPWM in low frequency range and SHE PWM in upper frequency range, can be obtained the relative less harmonic characteristic. The transient reaction, which the magnetic flux and the torque is altered and instantly the large current is flowed, may be produced at the mode change. This paper presents the techniques which can reduce the transient reactions produced in the gear changing of inverter fed traction motor drives operating in the hybrid PWM. The results are verified by the simulations.
Keywords