Paper Info
Title
Modulation for Three-Phase Transformerless Z-Source Inverter to Reduce Leakage Currents in Photovoltaic Systems
Abstract
In this paper, a modified Z-source inverter (ZSI) with specific modulation techniques is proposed to reduce leakage currents in three-phase transformerless photovoltaic (PV) systems. The new topology only requires an additional fast-recovery diode when compared with the original structure. On the other hand, the pulsewidth modulation technique is entirely modified in order to reduce the leakage currents through the conduction path. Simulation results for the three-phase transformerless PV system operating in two cases, i.e., connected to a grid and connected to a grounded RL load, are presented. Experimental results of leakage currents in three-phase ZSIs connected to a RL load are obtained to validate the theoretical and simulation models.
Year
DOI
Venue
2011
10.1109/TIE.2011.2116762
Industrial Electronics, IEEE Transactions
Keywords
Field
DocType
PWM invertors,diodes,leakage currents,photovoltaic power systems,fast-recovery diode,grounded RL load,leakage current reduction,pulsewidth modulation technique,three-phase transformerless Z-source inverter modulation,three-phase transformerless photovoltaic systems,Energy conversion,photovoltaic (PV) power systems,pulsewidth-modulated power converters
Inverter,Leakage (electronics),Control theory,Diode,Z-source inverter,Pulse-width modulation,Control engineering,Electronic engineering,Modulation,Three-phase,Engineering,Photovoltaic system
Journal
Volume
Issue
ISSN
58
12
0278-0046
Citations 
PageRank 
References 
20
1.66
6
Authors
6
Name
Order
Citations
PageRank
Fabrício Bradaschia1709.04
Marcelo C. Cavalcanti2848.93
Pedro E. P. Ferraz3201.66
Francisco A. S. Neves412115.80
Euzeli C. dos Santos5202.00
J. H. G. M. da Silva6201.66