High Gain Transformer-Less Double-Duty-Triple-Mode DC/DC Converter for DC Microgrid

High-gain DC/DC converters with high efficiency are needed in dc microgrid owed to the low voltage of power sources, e.g., photovoltaic-cell and fuel-cell. This paper proposed a new high-gain double-duty-triple-mode (DDTM) converter for dc-microgrid applications. The proposed DDTM converter operates...

Full description

Saved in:
Bibliographic Details
Published in:IEEE access 2019, Vol.7, p.36353-36370
Main Authors: Sagar Bhaskar, Mahajan, Meraj, Mohammad, Iqbal, Atif, Padmanaban, Sanjeevikumar, Kiran Maroti, Pandav, Alammari, Rashid
Format: Article
Language:English
Subjects:
Capacitors
dc microgrid
DC/DC
Distributed generation
double duty
Electric converters
High gain
high gain converter
High-voltage techniques
Inductors
Low voltage
Microgrids
Power sources
Semiconductor diodes
Switches
transformer-less
Transformers
triple mode
Voltage converters (DC to DC)
Voltage gain
wide duty range
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:High-gain DC/DC converters with high efficiency are needed in dc microgrid owed to the low voltage of power sources, e.g., photovoltaic-cell and fuel-cell. This paper proposed a new high-gain double-duty-triple-mode (DDTM) converter for dc-microgrid applications. The proposed DDTM converter operates in three modes to achieve higher voltage gain without utilizing transformer, coupled inductor, voltage multiplier, and multiple voltage lifting techniques, e.g., triple, quadruple voltage lift. The modes of operation of the converter are controlled through three switches with two distinct duty ratios (double duty) to achieve wide range duty ratio. The operating principle, voltage gain analysis, and efficiency analysis of the proposed converter are discussed in detail and to show its benefits comparison is provided with the existing high-gain converters. The boundary operating condition for continuous conduction mode (CCM) and discontinuous conduction mode (DCM) is presented. The prototype of the proposed converters with 500-W power is implemented in the laboratory and experimentally investigated, which validate the performance and feasibility of the proposed converter. Due to double duty control, the proposed converter can be controlled in different ways and the thorough discussion on controlling of the converter is provided as a future scope.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2019.2902440