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Design and implementation of novel DVR configuration for charging applications of electric vehicles
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1  Department of Electrical and Electronics Engineering, Sri Sairam Institute of Technology, Chennai, India
Academic Editor: Francesco Arcadio

Abstract:

In today’s world, conventional vehicles are being replaced by electric vehicles due to their eco-friendly operation and reduced maintenance. Though the EVs are better than the conventional vehicles, the charging stations for EVs are very few, and there are many power quality issues that have been arising in these charging stations. This is due to voltage, current, or frequencies are abnormal which leads to sudden voltage drops, voltage swells, long interruptions, and short interruptions that occur in the charging stations. Conventional FACTS devices are attached closer to the load end to overcome problems caused by client-side anomalies. One such dependable custom power gadget for dealing with voltage sag is the developed in this article; it is called an enhanced dynamic voltage restorer (DVR). The proposed device continuously monitors the load voltage waveform and injects (or absorbs) the balance (or surplus) voltage into (or away from) the load voltage whenever a sag occurs. A reference voltage waveform is developed to achieve the aforementioned capabilities. In this paper, the methods of compensation for these problems in charging stations are discussed. Further the power quality problems are compensated by the proposed system using a SVPWM controller. Simulation and real-time implementation is carried out, and the results discussed are here.

Keywords: Charging Station, Dynamic Voltage Restorer, Electric Vehicle, Power Quality
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