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Performance Evaluation of DC Electric Spring Placed in Micro Grid Systems Using Solar PV Emulator

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Document pages: 11 pages

Abstract: The use of D.C micro grids(MG) in the electricity distribution level especially for domestic and commercial applications is gaining momentum. D.C power is more lucrative because of low losses due to the absence of reactive power. Hence an attempt is made to realize the effect of both critical and non- critical loads connected to DC Electric spring which forms an integral part of DC MG system. As the buck chopper function meets the requirement of energy, the chopper circuitry is christened as Electric spring. The input to the MG system is obtained from a real time output of solar PV Emulator. In order to avoid multiple AC DC conversions, solar DC power is directly fed to the loads in addition to charging the batteries. During uncertain conditions of the input supply, the so fabricated DC Electric Spring plays vital role in maintaining constant voltage at critical loads which (this result) leads to the enhancement of the capacity of the battery which is evident from the experimental results.

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