International Journal of Advanced Innovative Technology in Engineering (IJAITE)

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DC Microgrid System for Smart Energy Delivery Using Renewable Sources

Ms. Prajakta Palhade, Prof. C. M. Bobade

Abstract :

An increase in the development of different kinds of power generations and the grid has raised major concerns with existing AC systems. Most of the microgrids and renewable energy sources operated in parallel with AC main grids. Since the majority of the power grids are presently ac type, ac microgrids are still dominant, and purely dc microgrids are not expected to emerge exclusively in power grids. Therefore, dc microgrids are prone to be developed in ac types even though in Subordinate. The DC micro-grid system, as a subsystem of the smart grid system, can also incorporate the smart concept into the DC power distribution for smart energy delivery. However, since the smart concept for the modern grid is under development, the DC micro-grid system still limits in the traditional configuration. A new DC micro-grid for high power quality distribution, the renewable energy is not modeled into the grid system. Hence, it is still a conventional model for the DC grid system. A new DC micro-grid system, which fully utilizes renewable energy and electric vehicle for smart energy delivery. The proposed DC grid incorporates the AC supply module, standby energy module, renewable energy module, and storage energy module together, to execute the energy distribution. Hence, this grid system can offer high-quality power for the three types of loads, namely AC single-phase output and two DC output. The control strategy of the grid system for performing smart energy delivery will be discussed in detail. The simulation results will be also given to verify the four operation modes of the grid system.

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