Control and Energy Management Strategy of Standalone DC Microgrid Cluster using PV and Battery Storage for Rural Application

Abstract

The recent evolution in technology and lifestyle has been led to a dramatic increase in electricity demand so that the local communities are encountered with challenges of huge initial costs, and sustainable extension to a national grid. Here in this paper, a DC microgrid cluster with three small areas (A, B and C) is proposed. Control and power stability of small-scale electrical system using renewable resources is a big challenge. In this study, the operation of DC microgrid and behavior of the system at different operating conditions is evaluated under different condition of the solar radiation and temperature changes for specific time periods. The DC Converters with PI control strategies are integrated to control the system performance and load-power balancing. The DC bus voltage level is employed as an information carrier for controller to maintain operation stability, improve efficiency, and enhance the redundancy of a system. At the meanwhile, the Maximum Power Point Trucking Incremental Conductance (MPPT-IC) algorithm is applied to maximize the efficiency and regulate the output voltage of the PV system to desired DC bus voltage. The PV arrays with battery and bidirectional converter are simulated to overcome the intermittency problems of PV outputs. Some typical operation modes are simulated using MATLAB R /Simulink to confirm the proposed model preference compared to the literature.

A review on energy efficiency for pathetic environmental trends mitigation

“…Therefore, sustainable operation recommends a broader perspective, balancing technical, technological, economic, environmental, institutional, social appraisals for optimum benefits for long-run sustainability [7]. Power systems reliability and stability of supply, security, flexibility, and proper operation owing optimum deployment of smart technologies and storage systems that make the possible increase in profitability, satisfaction in services delivery, and competitiveness in the market [8][9][10]. Managing supply and demand sides and propose a quick response to transient increases or decreases in power supply from alternating renewable sources, the different storage solutions may be hierarchies based on their ability, ensuring dynamic pricing structures are recommended [11].…”

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“…In recent years, photovoltaic systems have been studied from different perspectives due to its a number of attractive technical (easiness in installation, operation, and maintenance), financial (scalable based on energy demand), configuration (stand-alone and grid-connected) features, and deployment flexibilities (in different size for various applications: residential, agriculture, rural, remote, etc.) [1][2][3][4][5]. Therefore the photovoltaic technologies have been developed rapidly than fossil fuels these days because it seems to be the solution for the future and provides sustainable energy.…”