Charging Stations For Electric Vehicles - PowerPoint PPT Presentation

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Charging Stations For Electric Vehicles

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Title: Charging Stations For Electric Vehicles


1
Charging Stations for Electric Vehicle
Department of Electrical Engineering Government
College of Engineering, Amravati (An Autonomous
Institute of Government of Maharashtra) 2017-2018 
-By Sarang Bongirwar
Under the guidance of, Dr. K. D. Thakur.
2
Prologue
In 2017, Indian government pushed a major policy
of selling at least 6-7 million EVs in India by
2020. They are planning to sell only EVs by 2030.
  • But many experts in automobile industry
    criticized this plan and said that it might fail.
  • Only reason they have stated, is lack of
    infrastructure, and majorly lack of Charging
    stations.

3
Range Anxiety
  • Indian government is really trying to push
    electrical vehicle in our ecosystem. But people
    are reluctant to buy an electric vehicle.
  • Reason people are not buying electric vehicle is
    Range Anxiety.
  • Range anxiety is worry on the part of a person
    driving an electric car that the battery will run
    out of power before the destination or a suitable
    charging point is reached.

4
  • In case of India, with road network of 54 lakh
    kilometers with absolutely no infrastructure for
    supporting EVs.
  • Just considering case of Amravati to Nagpur,
    total traveling distance is minimum 320 km.
  • Vehicles like Mahindra e2o with range of 80 km
    will not even make it to half.
  • If we bring in Tesla Model S, with range of 330
    km, it will barely make it back to Amravati.
  • So what's the point in buying an EV? Why would I,
    you will buy an electric car?
  • Here, Charging Station plays vital role.

5
Introduction
  • Electric charging station is an element in an
    infrastructure that supplies electric energy for
    the recharging of electric vehicles, such
    as plug-in electric vehicles, including electric
    cars, plug-in hybrids, etc.
  • Charging stations are inevitable part of electric
    vehicle ecosystem.
  • In case of India, with road network of 54,72,144
    kilometers, the country needs nation wide network
    of charging stations for electric vehicles as
    government is planning to sell only EVs by 2030.

6
Working of Charging stations
  • Electricity from the grid is delivered as
    alternating current (AC) but the EV requires
    direct current (DC). A rectifier needs to sit
    between the grid and the battery to convert one
    to the other. For home and third party public
    charging this AC-to-DC conversion is done by the
    EVs on-board rectifier. AC current at the charge
    port is converted to DC for the battery by the
    rectifier.
  • Superchargers deliver high voltage, high current
    DC electricity directly to the EVs battery,
    bypassing the on-board rectifier. This allows the
    Supercharger to push electricity into the battery
    as fast as the battery can take ittypically ten
    times faster than home charging.

7
Block Diagram
Fig Working of Charging Station, Ref 2
8
Technical Detail
  • For those of a technical bent, heres how a
    typical DC charging station is configured the
    whole setup, takes a 12 kV, 750 kVA feed from the
    utility, steps it down to 480V three phase on
    site, pushes that into 2000A switchgear which
    feeds four banks of charging units at 480V/200A.
    Each unit contains twelve 10 kW rectifiers (the
    same rectifier that is found in EVs) giving a
    total of 120 kW per pair of pods.

9
Different levels of charging stations
  • Level 1, 120 Volt Charging The slowest form of
    charging. Uses a plug to connect to the on-board
    charger and a standard household outlet. This
    setup provides between 2-5 miles per hour.
  • Level 2, 220/240 Volt Charging Provide power at
    220v or 240v and up to 30 amps. Drivers can add
    10-25 miles of range in an hour of charging at
    home or at a public station.
  • Level 3, 480 Volt Charging Some refer to this
    charging as DC Fast charging. In this case, the
    charger is a gas pump-sized machine. All fast
    chargers deliver about 80 charge in 30 minutes.

10
Fig Levels of charging station, Ref 3
11
Solar powered charging station
  • Charging stations can also be powered by solar
    energy.
  • Number of solar panels can be placed on roof of
    charging station. This solar panel will deliver
    power to charging point.
  • Use of solar will reduce load on power grid and
    will also save considerable amount of fossil fuel
    used in producing electricity.

Fig Solar Powered Charging Station, Ref 4
12
Advantages
  • Increase in number of charging station will boost
    the selling of EVs as their will be reduced
    range anxiety.
  • It is always great for environment, if many EVs
    are being sold in country.
  • This will boost direct and indirect employment in
    country.
  • As India lack charging stations, it is good
    opportunity to young business aspirants to
    install charging station in their locality.

13
Disadvantage
  • Its Initial installation cost is high due to non
    availability of equipments in India. But all
    investment will eventually get recovered through
    charging station.
  • It derives large power from grid, which increase
    load. Regions with lack of power may not be able
    to handle this load.

14
Conclusions
  • As India is country with vast road network, if
    country wants to boost the popularity of EVs, it
    need to install as many charging station as
    possible.
  • Installation of charging station is much easier,
    but lack of knowledge makes it difficult to
    handle. Proper knowledge will surely improve
    current state of infrastructure.

15
References
  • 1 The Indian Express Dt 6th April 2017.
    Title 100 Electric mobility in India by 2030
    Is India really prepared for it? Author Epica
    Mandal Sarkar and Ashish Nigam.
  • 2 Mehmet Cem Catalbas, Merve Yildirim, Arif
    Gulten, and Hasan Kurum,
    Estimation of Optimal Location for Electric
    Vehicle Charging Stations, IEEE 2017. Date
    08/09/2017 Topics Referred Working of
    charging staions.
  • 3 R. Benger, R. Heyne, A. Haubrock, and H.P.
    Beck, Sustainable Fast Charging Stations for
    Electric Vehicles, in 5 th, International
    Renewable Energy Storage Conference (IRES 2010),
    Berlin, Germany. Date 08/09/2017 Topics
    ReferredLevels of charging station.
  • 4 Ciprian Vlad, Gabriel Murariu, Using
    Renewable Energy Sources For Electric
    Vehicles Charging IEEE 2013. Date
    08/09/2017 Topics Referred lar Powered Charging
    Station.

16
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