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논문 기본 정보

자료유형
학술저널
저자정보
Tapas Roy (Indian Institute of Technology (ISM)) Bidrohi Bhattacharjee (Indian Institute of Technology (ISM)) Pradip Kumar Sadhu (Indian Institute of Technology (ISM)) Abhijit Dasgupta (KIIT University) Srikanta Mohapatra (KIIT University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.18 No.4
발행연도
2018.7
수록면
1,051 - 1,066 (16page)

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초록· 키워드

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This study presents a novel step-up switched capacitor multilevel inverter (SCMLI) structure. The proposed structure comprises 2 unequal DC voltage sources, 4 capacitors, and 14 unidirectional power switches. It can synthesize 21 output voltage levels. The important features of the proposed topology are its self-voltage boosting and inherent capacitor voltage balancing capabilities. Furthermore, a cascaded structure of the proposed SCMLI with an asymmetric DC voltage source configuration is presented. The proposed topology and its cascaded structure are compared with conventional and other recently developed topologies in terms of different aspects, such as the required components to produce a specific number of output voltage levels, the total standing voltage (TSV) and peak inverse voltage of the structure, and the maximum number of switches in the conducting path. Furthermore, a cost function is developed to verify the cost-effectiveness of the proposed topology with respect to other topologies. The TSV of the proposed topology is significantly lower than those of other topologies. Moreover, the developed topology is cost-effective compared with other topologies. A detailed operating principle, power loss analysis, and selection procedure for switched capacitors are presented for the proposed SCMLI structure. Extensive simulation and experimental studies of a 21-level inverter structure prove the effectiveness and merits of the proposed SCMLI.

목차

Abstract
I. INTRODUCTION
II. PROPOSED 21-LEVEL SCMLI
III. CASCADED STRUCTURE OF THE PROPOSED SCMLI
IV. SELECTION PROCEDURE FOR SC CAPACITANCE
V. POWER LOSS ANALYSIS
VI. COMPARISON STUDY
VII. SIMULATION AND EXPERIMENTAL RESULTS
VIII. CONCLUSION
REFERENCES

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