Smart charging and V2G Prof. Dr. Pavol Bauer, Delft University of - PowerPoint PPT Presentation

Smart charging and V2G Prof. Dr. Pavol Bauer, Delft University of Technology

Learning Objectives • What is smart charging and vehicle-to-grid (V2G)? • Why do we need smart charging? • What are the advantages and disadvantages of V2G? • In which cases can smart charging can be applied?

Definition Smart charging is a series of intelligent functionalities to control the EV charging power in order to create a flexible, sustainable, low cost and efficient charging environment.

Benefits of smart charging • Increase the flexibility of charging • Higher utilization rates of fixed assets • Efficient utilization of energy in distribution network • Make electric vehicles more sustainable • Provide new revenue streams to EV owners

V2X

V2G • Using the electric vehicle battery to feed power back to the grid using a bidirectional EV charger • V2G = Vehicle to Grid • V2H = Vehicle to Home V2X • V2B = Vehicle to Building • V2L = Vehicle to Load • ..........

V2x advantages and challenges J Storage for renewables K Bidirectional charger J Reduce peak demand K Battery degradation J Emergency power K ICT infrastructure J Ancillary services K Standardization and regulatory framework K Lack of incentives for user

V2X • AC charging: Bidirectional on-board EV charger • DC charging: Bidirectional off-board EV charger

Applications of Smart charging

Example applications of smart charging • Local load balancing • Adjust charging time/power according to load • Balance multiple charge points with priority • Renewable energy utilization • Price based charging V2G • Peak shaving • Grid back up

Load balancing Load power Smart charging power Amount Time

Load balancing Controlled Controlled Controlled Load Power (W) Power (W) charging charging Power (W) charging Car 3 Car 2 Car 1 Car 2 Car 3 Car 2 Car 3 Car 1 Car 1 Time Time Time

Renewable energy availability Wind power generation Solar power generation Smart charging power Amount Time

Price based charging Electricity price Smart charging power Amount Time

Price based charging Electricity price Smart charging &V2X power Pricing level Amount Smart charge Time V2x

Load power Peak shaving Smart charging &V2X power Solar power generation Amount Time V2x

Wind power generation Load power Grid backup Grid power Grid back up from EV Amount Grid Time recovery Grid failure Back up from EV, V2G

Smart charging Prof. Dr. Pavol Bauer, Delft University of Technology