Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2007.07a
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- Pages.403-405
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- 2007
Driving the induction motor of indirect vector control using the 3-level inverter in the overmodulation region
3-level인버터를 이용한 과변조영역에서의 간접벡터 유도전동기 구동
- Lee, Jae-Moon (School of Electrical and Computer Engineering Chungbuk National University) ;
- Jung, Hun-Sun (School of Electrical and Computer Engineering Chungbuk National University) ;
- Nho, Se-Jin (School of Electrical and Computer Engineering Chungbuk National University) ;
- Lee, Eun-Kyu (Woojin Industrial System) ;
- Yeum, Sang-Kyu (Woojin Industrial System) ;
- Choi, Jae-Ho (School of Electrical and Computer Engineering Chungbuk National University)
- 이재문 (충북대학교 전기전자컴퓨터공학부) ;
- 정헌선 (충북대학교 전기전자컴퓨터공학부) ;
- 노세진 (충북대학교 전기전자컴퓨터공학부) ;
- 이은규 (충북대학교 전기전자컴퓨터공학부) ;
- 염상구 ((주)우진산전) ;
- 최재호 ((주)우진산전)
- Published : 2007.07.02
Abstract
This paper presents the over-modulation strategy and indirect vector control drive of NPC type PWM inverter. NPC inverter has three level phase voltage output.It can perform in high voltage through assembling switching components. It has less harmonics and surge voltage stress at motor terminals than the 2 level inverter in same switching frequency through 3 level voltage. The conventional railway vehicle has used the vector control to MI=0.907 and the slip-frequency control from MI=0.907 to six-step mode. The slip-frequency control has bad motive power and slow torque control response. But vector control has good motive power and can instant torque control. In this paper, output voltage is controlled linearly from linear region to six-step mode by using over-modulation strategy. And NPC inverter is used.
Keywords