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A Topology Synthetization Method for Single-Phase, Full-Bridge, Transformerless Inverter with Leakage Current Suppression—Part II

Author

Listed:
  • Xiumei Yue

    (College of Electrical and Information Engineering, Hunan University, Changsha 410082, China)

  • Hongliang Wang

    (College of Electrical and Information Engineering, Hunan University, Changsha 410082, China)

  • Xiaonan Zhu

    (College of Electrical and Information Engineering, Hunan University, Changsha 410082, China)

  • Xinwei Wei

    (College of Electrical and Information Engineering, Hunan University, Changsha 410082, China)

  • Yan-Fei Liu

    (Department of Electrical and Computer Engineering, Queen’s University, Kingston, ON K7L 3N6, Canada)

Abstract

This paper proposes a topology derivation methodology to achieve small leakage current or zero leakage current for photovoltaic application. The core of the proposed method is a unified topology model and MN principle to show how to derive all possible topologies based on unipolar sinusoidal pulse width modulation (USPWM) and double-frequency USPWM (DFUSPWM). Part II of this paper discusses the topology synthetization method to achieve zero leakage current. Two types of neutral point clamped (NPC) topologies based on USPWM and DFUSPWM are elaborated. Two possible connections for the NPC cell are introduced, and detailed NPC topology derivation procedures are also provided. All existing NPC topologies are derived, and twenty-two new NPC topologies are found based on the new topology derivation methodology for a single-phase, full-bridge, transformerless inverter.

Suggested Citation

  • Xiumei Yue & Hongliang Wang & Xiaonan Zhu & Xinwei Wei & Yan-Fei Liu, 2020. "A Topology Synthetization Method for Single-Phase, Full-Bridge, Transformerless Inverter with Leakage Current Suppression—Part II," Energies, MDPI, vol. 13(2), pages 1-23, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:2:p:446-:d:309660
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    Cited by:

    1. Ali Bughneda & Mohamed Salem & Anna Richelli & Dahaman Ishak & Salah Alatai, 2021. "Review of Multilevel Inverters for PV Energy System Applications," Energies, MDPI, vol. 14(6), pages 1-23, March.

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