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논문 기본 정보

자료유형
학술저널
저자정보
Tae-Hun Kim (한양대학교) Woo-Cheol Lee (Hankyong National University)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.13 No.1
발행연도
2018.1
수록면
263 - 269 (7page)

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초록· 키워드

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In this study, a selective inverter operation between a 2-level voltage source converter (VSC) and a 3-level T-type VSC (3LT VSC) is proposed to improve the efficiency of a 3LT VSC. The 3LT VSC topology, except for its neutral-point switches, has similar operations as that of the 2-level VSC. If an operation mode is changed according to efficiency, the efficiency can be improved because efficiencies of each methods are depending on current and MI (Modulation Index). The proposed method calculates the power losses of the two topologies and operates as the having lower losses. To calculate the losses, the switching and conduction losses based on the operation mode of each topology were analyzed. The controller determined the operation mode of the 2- or 3-level VSC based on the power loss calculated during every cycle. The validity of the proposed control scheme was investigated through simulation and experiments. The waveform and average efficiency of each method were compared.

목차

Abstract
1. Introduction
2. Operation Characteristics and Power Loss
3. Proposed Method
4. Experimental results
5. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2018-560-001704703