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DC Islands in AC Smart Grids Abstract The benefits arising from DC distribution systems is related to the possibilities of achieving higher quality supply and easier reconfigurability of the system .This piece presents the idea of introducing some DC islands interconnected with the AC distribution network. This will make it easier to connect storage systems, electrical drives, power converters, and renewable sources (i.e., photovoltaic panels). In order to realize the aforementioned goals, a methodology for designing the control strategy of different power converters connected to a DC bus without a compacted system management control unit is future. In this way a plug and participate functionality for connecting new power converter interfaced elements in the DC network able to stabilize the voltage under different working conditions is appreciated. Existing method: A DC grid for a conventional AC distribution network .Indeed, a DC network, besides its wellknown advantages with respect to AC systems offers a simplification in relation to the power electronic converters for all of the devices operating on DC, i.e., photovoltaic (PV) systems and many storage systems. Moreover, it could eliminate all of the rectifiers present, as a first stage, in electrical drives and suppliers. For this reason, it is reasonable to imagine future smart grids realized using AC backbones and some DC leaves in the zones characterized by many small generation units, storage facilities, and users that are particularly susceptible to voltage disturbance. Proposed method: In this piece analyzer besides the relevant features connected with the introduction in a smart grid of some dc islands to improve the power quality and energy efficiency of the system methodology to design a fully plug and play system solution without centralized communication infrastructure. Further Details Contact: A Vinay 9030333433, 08772261612 Email: [email protected] | www.takeoffprojects.com Block diagram: Block diagram of proposed system Advantages: 1)a dc micro grid not only allows the easier connection of renewable sources and storage systems but also makes it possible to eliminate all of the input rectifiers installed inside electrical drives and suppliers the advantage of using a hybrid AC+DC distribution systems involve not only the quality of service but also the efficiency of overall system. 2) The advantages arising from DC distribution networks is related to the possibilities of achieving higher quality supply and easier reconfigurability of the system. Applications: 1) The proposed system renewable energy sources like in solar and wind power systems. 2) The method used different distribution networks for improve the power quality and voltage stability also used in commercial and residential, industry sectors. Further Details Contact: A Vinay 9030333433, 08772261612 Email: [email protected] | www.takeoffprojects.com