An Analytical Research and Implementation on Power System Management based on Smart Grid Concept
Keywords:
Power System Management, Smart Grid ConceptAbstract
he advancement in power electronics and digital control technology, the DG systems can be actively controlled to enhance the system operation with improved PQ at PCC. The use of power electronics based equipment and non-linear loads at PCC generate harmonic currents, which deteriorate the quality of power. A converter is being used which can be used both as a rectifier and an inverter. A battery is used as a storage system which stores the extra energy produced from the grid and supplies it back to the grid when needed. A bidirectional converter is used which can be used both as Homer generates output power productions and power consumptions. The electrical grid of the example represents Utility distribution system. Several feeders are connected to the 25-kV bus of the substation. One of them supplies the power to a community that owns the PV farm and an energy storage system. The grounding transformer provides a neutral point and limits the overvoltage on the healthy phases during a single-phase fault. Based on a given load profile, PV farm output, ESS power rating and capacity, the simulation will give the number of unavailability for a full year. This sizing study is performed for various locations. The grid-interfacing inverter with the proposed approach can be utilized to inject real power generated from RES to the grid, and/or, Operate as a shunt Active Power Filter.
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