DC MicroGrid as a solution for utilisation of solar photovoltaic sources

2016 ◽  
Author(s):  
Ashan Imantha M. H. Bandara ◽  
Prabath Binduhewa ◽  
Janaka Ekanayake
Keyword(s):  
Solar Photovoltaic ◽  
Dc Microgrid

A High Gain Novel Double-Boost Converter for DC Microgrid Applications

2020 ◽  
Vol 29 (15) ◽  
pp. 2050246 ◽  
Author(s):  
B. N. Ch. V. Chakravarthi ◽  
G. V. Siva Krishna Rao
Keyword(s):  
Control Strategies ◽  
High Gain ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Dc Microgrid ◽  
Boost Converters ◽  
Power Point ◽  
Solar Photovoltaic System ◽  
Conversion Stage ◽  
And Control

In solar photovoltaic (PV)-based DC microgrid systems, the voltage output of the classical DC–DC converter produces very less voltage as a result of poor voltage gain. Therefore, cascaded DC–DC boost converters are mandatory for boosting the voltage to match the DC microgrid voltage. However, the number of devices utilized in the DC–DC conversion stage becomes higher and leads to more losses. Thereby, it affects the system efficiency and increases the complication of the system and cost. In order to overcome this drawback, a novel double-boost DC–DC converter is proposed to meet the voltage in DC microgrid. Also, this paper discusses the detailed operation of maximum power point (MPP) tracking techniques in the novel double-boost DC–DC converter topology. The fundamental [Formula: see text]–[Formula: see text] and [Formula: see text]–[Formula: see text] characteristics of solar photovoltaic system, operational details of MPP execution and control strategies for double-boost DC/DC converter are described elaborately. The proposed converter operation and power injection into the DC microgrid are verified through the real-time PSCAD simulation and the validation is done through the experiment with hardware module which is indistinguishable with the simulation platform.

Autonomous load sharing technique in solar photovoltaic system-based DC microgrid

2020 ◽  
pp. 1-8
Author(s):  
Govindugrai Venkata Suresh Babu ◽  
T. Mariprasath ◽  
S. Khadarvali ◽  
C. Harshavardhan Reddy ◽  
Karnam Amaresh
Keyword(s):  
Load Sharing ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Dc Microgrid ◽  
Solar Photovoltaic System

scholarly journals Sustainable Rural Electrification Through Solar PV DC Microgrids—An Architecture-Based Assessment

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1417
Author(s):  
Mashood Nasir ◽  
Saqib Iqbal ◽  
Hassan A. Khan ◽  
Juan C. Vasquez ◽  
Josep M. Guerrero
Keyword(s):  
Distributed Generation ◽  
Distributed Storage ◽  
Rural Electrification ◽  
Solar Photovoltaic ◽  
Power Electronic ◽  
Dc Microgrid ◽  
Dc Microgrids ◽  
Loss Analysis ◽  
Study Results ◽  
Central Storage

Solar photovoltaic (PV) direct current (DC) microgrids have gained significant popularity during the last decade for low cost and sustainable rural electrification. Various system architectures have been practically deployed, however, their assessment concerning system sizing, losses, and operational efficiency is not readily available in the literature. Therefore, in this research work, a mathematical framework for the comparative analysis of various architectures of solar photovoltaic-based DC microgrids for rural applications is presented. The compared architectures mainly include (a) central generation and central storage architecture, (b) central generation and distributed storage architecture, (c) distributed generation and central storage architecture, and (d) distributed generation and distributed storage architecture. Each architecture is evaluated for losses, including distribution losses and power electronic conversion losses, for typical power delivery from source end to the load end in the custom village settings. Newton–Raphson method modified for DC power flow was used for distribution loss analysis, while power electronic converter loss modeling along with the Matlab curve-fitting tool was used for the evaluation of power electronic losses. Based upon the loss analysis, a framework for DC microgrid components (PV and battery) sizing was presented and also applied to the various architectures under consideration. The case study results show that distributed generation and distributed storage architecture with typical usage diversity of 40% is the most feasible architecture from both system sizing and operational cost perspectives and is 13% more efficient from central generation and central storage architecture for a typical village of 40 houses. The presented framework and the analysis results will be useful in selecting an optimal DC microgrid architecture for future rural electrification implementations.

Solar Photovoltaic Energy

2010 ◽  
Author(s):  
Anne Labouret ◽  
Michel Villoz
Keyword(s):  
Solar Photovoltaic ◽  
Photovoltaic Energy
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