Review And Comparison Of Single-Phase Grid-Tied Photovoltaic Microinverters

Keywords

Grid-connected inverter; Microinverter; Photovoltaic (PV); Transformer-based inverter; Transformer-less inverter

Abstract

The presence of the electrical isolation between the PV module and the grid is very crucial aspect in determining the performance requirement as well as the utility operator's specs of the PV microinverter design. The grid-connected PV microinverter design can be classified into transformer-less and transformer-based topologies in regard to the galvanic isolation. Typically, a microinverter's performance can be enhanced with the use of transformerless topologies to be more efficient, compact, less bulky, and costly than the transformer-based topologies. Whereas, the use of transformer in microinverter topologies provides high power quality as well as galvanic isolation to eliminate the safety issues which in return meet the grid standards. In this paper, to address the various challenges of microinverters, a number of experimentally verified non-isolated and isolated microinverters have been carefully reviewed and compared in terms of their corresponding efficiency, power density, reliability, and cost.

Publication Date

12-3-2018

Publication Title

2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

Number of Pages

7101-7108

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/ECCE.2018.8558076

Socpus ID

85060286704 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85060286704

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