Analysis of Distribution Systems in the presence of Electric Vehicles
and optimal allocation of DGs considering power loss and VSI
Abstract
Electric Vehicles (EV) have the potential to completely transform the
transportation industry, slash carbon emissions significantly, and pave
the road for significant climate progress. According to surveys, worries
regarding range and charging accessibility are a significant barrier to
EV customer adoption. The electricity grid will be significantly
impacted by EV charging. A coordinated charging approach that
facilitates EV charging while avoiding the power grid from overloading
is required to manage EV charging. In this work, the EVs are classified
based on their charging capacity. This classification includes Car,
truck and bus. With this a chargingdischarging scheme has been
established using Real Time Pricing (RTP) for each hour for a 20 min
block. Augmenting this, in the present work the power loss is analyzed
when Distributed Generation (DG) units are installed after the EVs are
located in the system for charging and discharging. The DG units are
installed considering the Voltage Stability Index (VSI) and the power
losses incurred due to the presence of EVs. The Monetary benefit of such
an investment is analyzed for different topologies of IEEE-33 and 69 bus
systems and compared with the existing methods where DGs are installed
before the EVs are located in the system for charging and discharging.