Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1999.07h
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- Pages.21-25
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- 1999
멀티레벨 전압형 인버터를 사용한 무효전력보상장치
- Min, Wan-Gi ;
- Kim, Byeong-Cheol ;
- Jeon, Hyeong-Seok ;
- Kim, Hyeong-Gon ;
- Sin, Seok-Du ;
- Jang, Seong-Nam ;
- Lee, Gwang-Seok
- 민완기 (조선이공대학 전기과) ;
- 김병철 (조선이공대학 전기과) ;
- 전형석 (조선이공대학 전기과) ;
- 김형곤 (조선이공대학 전기과) ;
- 신석두 (조선이공대학 전기과) ;
- 장성남 (조선이공대학 전기과) ;
- 이광석 (조선이공대학 전기과)
- Published : 1999.07.08
Abstract
This paper proposes a novel control strategy of SVC(Static var compensator) using cascade multilevel inverter. To control the reactive power instantaneously, the dq-dynamic system model is described and analyzed. A single pulse pattern based on the SHE(Selective Harmonic Elimination) technique is determined from the look-up table to reduce the line current harmonics and a rotating fundamental frequency switching scheme is applied to adjust the DC capacitor voltage at the scheme level. From the simulation, it is verified that this proposed control scheme make the dynamic control response of SVC fast, the current harmonics low, and the DC capacitor voltage balanced.
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