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논문 기본 정보

자료유형
학술저널
저자정보
Radoslaw Kot (Warsaw University of Technology) Sebastian Stynski (Warsaw University of Technology) Krzysztof Stepien (ZE TWERD Power Electronics Company) Jaroslaw Zaleski (ZE TWERD Power Electronics Company) Mariusz Malinowski (Warsaw University of Technology)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.16 No.1
발행연도
2016.1
수록면
153 - 162 (10page)

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초록· 키워드

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Given their structural arrangement, photovoltaic (PV) modules exhibit parasitic capacitance, which creates a path for high-frequency current during zero-state switching of the converter in transformerless systems. This current has to be limited to ensure safety and electromagnetic compatibility. Many solutions that can minimize or completely avoid this phenomenon, are available. However, most of these solutions are patented because they rely on specific and often complex converter topologies. This study aims to solve this problem by introducing a solution based on a classic converter topology with an appropriate modulation technique and passive filtering. A 5.5 kW single-phase residential PV system that consists of DC-DC boost stage and DC-AC H-bridge converter is considered. Control schemes for both converter stages are presented. An overview of existing modulation techniques for H-bridge converter is provided, and a modification of hybrid modulation is proposed. A system prototype is built for the experimental verification. As shown in the study, with simple filtering and proper selection of switching states, achieving low leakage current level is possible while maintaining high converter efficiency and required energy quality.

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Abstract
I. INTRODUCTION
II. COMMON-MODE VOLTAGE AND CURRENT
III. PROPOSED SYSTEM
IV. MODULATION TECHNIQUES FOR THE H-BRIDGE CONVERTER
V. EXPERIMENTAL STUDY
VI. CONCLUSION
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UCI(KEPA) : I410-ECN-0101-2016-560-002315302