Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2000.07b
- /
- Pages.1030-1032
- /
- 2000
AN OBSERVER-BASED DTC OF INDUCTION MOTORS DRIVEN BY 3-LEVEL INVERTER FOR IMPROVING LOW SPEED OPERATION
3 레벨 인버터로 구동되는 유도전동기 직접 토크제어의 저속운전 성능 개선
- Yun, J.H. (Hyundai Heavy Industries) ;
-
Choi, S.K.
(Hyundai Heavy Industries)
;
- Lee, S.H. (Hyundai Heavy Industries) ;
- Lee, K.B. (Korea University) ;
-
Yoo, J.Y.
(Korea University)
;
-
Song, J.H.
(KIST)
;
-
Choi, I.
(KIST)
- 박영민 (현대중공업) ;
-
최세경
(현대중공업)
;
- 이세현 (현대중공업) ;
- 이교범 (고려대학교) ;
-
유지윤
(고려대학교)
;
-
송중호
(한국과학기술연구원)
;
-
최익
(한국과학기술연구원)
- Published : 2000.07.17
Abstract
Direct torque control algorithm for 3-level inverter-fed induction motors is proposed. Conventional selection method of the stator voltage vector shows problems of stator flux drooping phenomenon and undesirable torque control appeared especially at the low, speed operation. To overcome these problems, a proposed method uses intermediate voltage vectors, which are inherently generated in 3-level inverters. An adaptive observer is also employed to estimate some state-variables and motor parameters, which takes a deep effect on the performance of the low speed operation. Simulation and experiment results verify effectiveness of the proposed algorithm.
Keywords