NDLI: Single phase cascaded multilevel photovoltaic sources for power balanced operation

Content Provider	IEEE Xplore Digital Library
Author	Verma, V. Kumar, A.
Copyright Year	2012
Description	Author affiliation: Department of Electrical Engineering, Delhi Technological University, INDIA (Verma, V.; Kumar, A.)
Abstract	Recent developments and researches on cascaded H-bridge multilevel inverters (MLI) have led to its application for rooftop photovoltaic (PV) micro inverters feeding isolated loads. The topology provides transformer less operation where separate DC links at each bridge are fed from individual PV units. The traditional control techniques using battery supported PV panels lead to non uniform operation and utilization of each H-bridge, where some bridges are under high stress as compared to others. This paper presents control techniques which will levels the utilization and storage of power generated by PV panels of same capacity and same size of battery connected at each level. The control method utilizes rotation policy for operation of each bridge at each level in three fundamental cycles, to enhance both the life time of battery, H-bridges and PV panels used. PV units are integrated with incremental conductance (IC) based MPPT charge controllers to extract maximum power at all time of operation. A MATLAB based simulation has been carried out and various waveforms are analyzed. The presented results shows the effectiveness of the proposed scheme in power balanced operation of each panel, battery and the hardware for proper resource utilization with enhanced efficiency.
Starting Page	1
Ending Page	6
File Size	1322828
Page Count	6
File Format	PDF
ISBN	9781467309318
ISSN	21603162
e-ISBN	9781467309349
DOI	10.1109/IICPE.2012.6450502
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-12-06
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Integrated circuits Multilevel Inverter MPPT Bridge circuits Pulse width modulation Photovoltaic (PV) Batteries Arrays MATLAB Voltage control
Content Type	Text
Resource Type	Article

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