A Novel Single-Phase Non-Isolated Dual-Input Micro-inverter with Active Power Decoupling

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Chengqi Xiao
  • Weimin Wu
  • Qingkai Guo
  • Mohamed Orabi
  • Eftichios Koutroulis
  • Frede Blaabjerg

Detail(s)

Original languageEnglish
Pages (from-to)4437-4448
Number of pages12
Journal / PublicationIEEE Transactions on Power Electronics
Volume40
Issue number3
Online published28 Oct 2024
Publication statusOnline published - 28 Oct 2024

Abstract

Aiming at the challenges faced by single-phase nonisolated microinverters (MIs) such as leakage current and power fluctuation, a nonisolated common-ground MI with active power decoupling capability is proposed in this article. In this topology, the photovoltaic (PV) module and the grid have a common terminal, thereby eliminating the common-mode leakage current. Power decoupling between dual-input sources and the grid is inherent, so electrolytic capacitors can be replaced with long-life, small-capacity film capacitors. The proposed MI requires only four switches and can handle the power of two PV modules in a modular manner. A 400-W experimental prototype has been built in the laboratory to verify the performance of the proposed MI and the feasibility of the proposed scheme. © 1986-2012 IEEE.

Research Area(s)

  • Micro-inverter, non-isolated, photovoltaic, power decoupling, photovoltaic (PV), Microinverter, nonisolated

Citation Format(s)

A Novel Single-Phase Non-Isolated Dual-Input Micro-inverter with Active Power Decoupling. / Xiao, Chengqi; Wu, Weimin; Guo, Qingkai et al.
In: IEEE Transactions on Power Electronics, Vol. 40, No. 3, 03.2025, p. 4437-4448.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review