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      KCI등재 SCIE SCOPUS

      Simple Technique Reducing Leakage Current for H-Bridge Converter in Transformerless Photovoltaic Generation

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      https://www.riss.kr/link?id=A101729216

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      다국어 초록 (Multilingual Abstract)

      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 ens...

      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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      목차 (Table of Contents)

      • Abstract
      • I. INTRODUCTION
      • II. COMMON-MODE VOLTAGE AND CURRENT
      • III. PROPOSED SYSTEM
      • IV. MODULATION TECHNIQUES FOR THE H-BRIDGE CONVERTER
      • 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
      • REFERENCES
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      참고문헌 (Reference)

      1 T. Friedli, "The essence of three-phase PFC rectifier systems — Part II" 29 (29): 543-560, 2014

      2 D. Meneses, "Review and comparison of step-up transformerless topologies for photovoltaic AC-module application" 28 (28): 2649-2663, 2013

      3 R. Teodorescu, "Proportional-resonant controllers and filters for grid-connected voltage-source converters" 153 (153): 750-762, 2006

      4 F. Blaabjerg, "Overview of control and grid synchronization for distributed power generation systems" 53 (53): 1398-1409, 2006

      5 D. Sera, "On the perturb-and-observe and incremental conductance MPPT methods for PV systems" 3 (3): 1070-1078, 2013

      6 Y. Yongheng, "Low-voltage ride-through of single-phase transformerless photovoltaic inverters" 50 (50): 1942-1952, 2014

      7 D. Dong, "Leakage current reduction in a single-phase bidirectional AC–DC full-bridge inverter" 27 (27): 4281-4291, 2012

      8 O. Lopez, "Leakage current evaluation of a single phase transformerless PV inverter connected to the grid" 907-912, 2007

      9 A. K. Abdelsalam, "High-performance adaptive perturb and observe MPPT technique for photovoltaic-based microgrids" 26 (26): 1010-1021, 2011

      10 R. Teodorescu, "Grid Converters for Photovoltaic and Wind Power Systems" Wiley-IEEE Press 2011

      1 T. Friedli, "The essence of three-phase PFC rectifier systems — Part II" 29 (29): 543-560, 2014

      2 D. Meneses, "Review and comparison of step-up transformerless topologies for photovoltaic AC-module application" 28 (28): 2649-2663, 2013

      3 R. Teodorescu, "Proportional-resonant controllers and filters for grid-connected voltage-source converters" 153 (153): 750-762, 2006

      4 F. Blaabjerg, "Overview of control and grid synchronization for distributed power generation systems" 53 (53): 1398-1409, 2006

      5 D. Sera, "On the perturb-and-observe and incremental conductance MPPT methods for PV systems" 3 (3): 1070-1078, 2013

      6 Y. Yongheng, "Low-voltage ride-through of single-phase transformerless photovoltaic inverters" 50 (50): 1942-1952, 2014

      7 D. Dong, "Leakage current reduction in a single-phase bidirectional AC–DC full-bridge inverter" 27 (27): 4281-4291, 2012

      8 O. Lopez, "Leakage current evaluation of a single phase transformerless PV inverter connected to the grid" 907-912, 2007

      9 A. K. Abdelsalam, "High-performance adaptive perturb and observe MPPT technique for photovoltaic-based microgrids" 26 (26): 1010-1021, 2011

      10 R. Teodorescu, "Grid Converters for Photovoltaic and Wind Power Systems" Wiley-IEEE Press 2011

      11 M. A. G de Brito, "Evaluation of the main MPPT techniques for photovoltaic applications" 60 (60): 1156-1167, 2013

      12 G. Buticchi, "Digital control of actual grid-connected converters for ground leakage current reduction in PV transformerless systems" 8 (8): 563-572, 2012

      13 T. Esram, "Comparison of photovoltaic array maximum power point tracking techniques" 22 (22): 439-449, 2007

      14 T. K. S. Freddy, "Comparison and analysis of single-phase transformerless grid-connected PV inverters" 29 (29): 5358-5369, 2014

      15 T. Kerekes, "Analysis and modeling of transformerless photovoltaic inverter systems" Aalborg University 2009

      16 S. Stynski, "Analisys and control of muitilevel AC-DC-AC flying capacitor converter fed trom single-phase grid" Warsaw University of Technology 2012

      17 X. Huafeng, "An optimized transformerless photovoltaic grid-connected inverter" 58 (58): 1887-1895, 2011

      18 F. Scarpetta, "Adaptive distributed MPPT algorithm for photovoltaic systems" 5708-5713, 2012

      19 L. Hadjidemetriou, "A new hybrid PLL for interconnecting renewable energy systems to the grid" 49 (49): 2709-2719, 2013

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      학술지 이력

      학술지 이력
      연월일 이력구분 이력상세 등재구분
      2023 평가예정 해외DB학술지평가 신청대상 (해외등재 학술지 평가)
      2020-01-01 평가 등재학술지 유지 (해외등재 학술지 평가) KCI등재
      2014-10-08 학술지명변경 한글명 : 전력전자학회 영문논문지 -> Journal of Power Electronics KCI등재
      2010-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2007-01-01 평가 등재학술지 선정 (등재후보2차) KCI등재
      2006-01-01 평가 등재후보 1차 PASS (등재후보1차) KCI등재후보
      2004-07-01 평가 등재후보학술지 선정 (신규평가) KCI등재후보
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      기준연도 WOS-KCI 통합IF(2년) KCIF(2년) KCIF(3년)
      2016 0.83 0.54 0.74
      KCIF(4년) KCIF(5년) 중심성지수(3년) 즉시성지수
      0.65 0.62 0.382 0.06
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