A systematic method to synthesize new transformerless full-bridge grid-tied inverters

Author

Hongliang Wang ; Burton, Sarah ; Yan-Fei Liu ; Sen, P.C. ; Guerrero, Josep M.

Author_Institution

Dept. of Electr. & Comput. Eng., Queen´s Univ., Kingston, ON, Canada

fYear

2014

fDate

14-18 Sept. 2014

Firstpage

2760

Lastpage

2766

Abstract

Many inverter topologies have been proposed to eliminate the leakage current of transformerless Full Bridge Grid-Tied photovoltaic (PV) inverters. These include implementations such as the H5, H6, and HERIC topologies, among others. In this paper, a new full bridge topology synthesis method, called the MN synthesis method, is proposed. The MN method introduces two criteria that can be used to synthesize all of the possible topologies, including the existing topologies as well as new simplified topologies. This method concludes that there are only 15 simplified topologies available. Most simplified topologies from MN method have been verified by existing papers and patents.

Keywords

bridge circuits; invertors; leakage currents; photovoltaic power systems; power grids; H5 topologies; H6 topologies; HERIC topologies; MN synthesis method; PV inverters; full bridge topology synthesis method; inverter topologies; leakage current; photovoltaic inverters; transformerless full-bridge grid-tied inverters; Bridge circuits; Control systems; Inverters; Leakage currents; Manganese; Noise measurement; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2014 IEEE

Conference_Location

Pittsburgh, PA

Type

conf

DOI

10.1109/ECCE.2014.6953772

Filename

6953772