Journal ArticleDOI
High-Efficiency MOSFET Inverter with H6-Type Configuration for Photovoltaic Nonisolated AC-Module Applications
TLDR
In this paper, a high-efficiency inverter using MOSFETs for all active switches is presented for photovoltaic, non-isolated, ac-module applications.Abstract:
A novel, high-efficiency inverter using MOSFETs for all active switches is presented for photovoltaic, nonisolated, ac-module applications. The proposed H6-type configuration features high efficiency over a wide load range, low ground leakage current, no need for split capacitors, and low-output ac-current distortion. The detailed power stage operating principles, pulsewidth modulation scheme, associated multilevel bootstrap power supply, and integrated gate drivers for the proposed inverter are described. Experimental results of a 300 W hardware prototype show that not only are MOSFET body diode reverse-recovery and ground leakage current issues alleviated in the proposed inverter, but also that 98.3% maximum efficiency and 98.1% European Union efficiency of the dc-ac power train and the associated driver circuit are achieved.read more
Citations
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Journal ArticleDOI
Topology Review and Derivation Methodology of Single-Phase Transformerless Photovoltaic Inverters for Leakage Current Suppression
TL;DR: The generation mechanism of leakage current is investigated and the concepts of dc-based and ac-based decoupling networks are proposed to not only cover the published symmetrical inductor-based topologies but also offer an innovative strategy to derive advanced inverters.
Journal ArticleDOI
H6 Transformerless Full-Bridge PV Grid-Tied Inverters
TL;DR: Experimental results show that the proposed H6 topology and the HERIC achieve similar performance in leakage currents, which is slightly worse than that of the H5 topology, but it features higher efficiency than that that of H5Topology.
Journal ArticleDOI
High Reliability and Efficiency Single-Phase Transformerless Inverter for Grid-Connected Photovoltaic Systems
TL;DR: In this article, a high-reliability single-phase transformerless grid-connected inverter that utilizes superjunction MOSFETs to achieve high efficiency for photovoltaic applications is presented.
Journal ArticleDOI
A Family of Neutral Point Clamped Full-Bridge Topologies for Transformerless Photovoltaic Grid-Tied Inverters
TL;DR: In this paper, two types of basic switching cells, the positive neutral point clamped cell and the negative neutral point clamp cell, are proposed to build transformerless grid-tied PV inverters, with a systematic method of topology generation given.
Journal ArticleDOI
Transformerless Inverter Topologies for Single-Phase Photovoltaic Systems: A Comparative Review
TL;DR: This paper aims to comprehensively review and classify various transformerless inverters with detailed analytical comparisons, and to give more insight on the CM characteristics and leakage current, computer simulations of major transformer less inverter topologies have been performed in PLECS software.
References
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Journal ArticleDOI
A review of single-phase grid-connected inverters for photovoltaic modules
TL;DR: In this article, the authors focus on inverter technologies for connecting photovoltaic (PV) modules to a single-phase grid and categorize the inverters into four classifications: 1) the number of power processing stages in cascade; 2) the type of power decoupling between the PV module(s) and the single phase grid; 3) whether they utilizes a transformer (either line or high frequency) or not; and 4) the kind of grid-connected power stage.
Journal ArticleDOI
Power electronics as efficient interface in dispersed power generation systems
TL;DR: In this article, power electronics, the technology of efficiently processing electric power, play an essential part in the integration of the dispersed generation units for good efficiency and high performance of the power systems.
Journal ArticleDOI
Design and control of an LCL-filter-based three-phase active rectifier
TL;DR: In this article, a step-by-step procedure for designing the LCL filter of a front-end three-phase active rectifier is proposed to reduce the switching frequency ripple at a reasonable cost, while at the same time achieving a high-performance front end rectifier.
Journal Article
Power Electronics as Efficient Interface in Dispersed Power Generation Systems
TL;DR: In this article, power electronics, the technology of efficiently processing electric power, play an essential part in the integration of the dispersed generation units for good efficiency and high performance of the power systems.
Journal ArticleDOI
A Review of the Single Phase Photovoltaic Module Integrated Converter Topologies With Three Different DC Link Configurations
Quan Li,Peter Wolfs +1 more
TL;DR: In this paper, a topology study of the PV MICs in the power range below 500 W and covers most topologies recently proposed for MIC applications is presented, where the MIC topologies are classified into three different arrangements based on the dc link configurations.