Topology Review and Derivation Methodology of Single-Phase Transformerless Photovoltaic Inverters for Leakage Current Suppression

Li, Wuhua; Gu, Yunjie; Luo, Haoze; Cui, Wenfeng; He, Xiangning; Xia, Changliang

doi:10.1109/tie.2015.2399278

articleIEEE Transactions on Industrial ElectronicsFeb 4, 2015Closed access

Topology Review and Derivation Methodology of Single-Phase Transformerless Photovoltaic Inverters for Leakage Current Suppression

WLWuhua Li YGYunjie Gu HLHaoze Luo WCWenfeng Cui XHXiangning He

Zhejiang University · Tianjin University

Indexed incrossref

Abstract

Single-phase voltage source transformerless inverters have been developed for many years and have been successful commercial applications in the distributed photovoltaic (PV) grid-connected systems. Moreover, many advanced industrial topologies and recent innovations have been published in the last few years. The objective of this paper is to classify and review these recent contributions to establish the present state of the art and trends of the transformerless inverters. This can provide a comprehensive and insightful overview of this technology. First, the generation mechanism of leakage current is investigated to divide the transformerless inverters into asymmetrical inductor-based and symmetrical…

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Topics

Keywords

Inductor
Photovoltaic system
Network topology
Inverter
Decoupling (probability)
Electronic engineering
Grid
Topology (electrical circuits)

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