Techno - Economic Assessment of Distribution System considering
different types of EVs and DGs.
The global warming crisis, together with environmental concerns, has
already led governments to replace traditional fossil-fuel cars with
low-emission Electric Vehicles (EVs). This replacement has resulted in
the addition of a large number of EVs capable of connecting to the grid.
A coordinated charging method is needed to promote EVs on a large scale
while preventing grid overloading. In this work, EVs are categorized
based on their battery capacity, as cars, trucks, and buses. A
charging/discharging mechanism based on Real Time Pricing (RTP) for each
hour is developed for a 20-minute block has been formed. The locations
of EV charging stations have been identified using Voltage Stability
Index (VSI). In the present work, the power loss when Distributed
Generator (DG) units are deployed after the EVs are located in the
system for charging and discharging is analyzed. The DGs are considered
as solar based or wind based generators for studying the economic
benefit of such an investment under two different weather scenarios and
topologies on standard test systems. The results thus obtained give an
insight into the various technical and economic benefits.