charging infrastructure – IONI ENGINEERING ™EV BOXCASE

Electric vehicle fast charging infrastructure planning in urban networks…

Electric vehicle fast charging infrastructure planning in urban networks considering daily travel and charging behavior
Mohammadreza Kavianipour, Fatemeh Fakhrmoosavi, Harprinderjot Singh MehrnazGhamami, Ali Zockaie, Yanfeng Ouyangb, Robert Jackson
Transportation Research Part D: Transport and Environment

Electric vehicles are a sustainable substitution to conventional vehicles. This study introduces an integrated framework for urban fast charging infrastructure to address the range anxiety issue. A mesoscopic simulation tool is developed to generate trip trajectories, and simulate charging behavior based on various trip attributes. The resulting charging demand is the key input to a mixed-integer nonlinear program that seeks charging station configuration. The model minimizes the total system cost including charging station and charger installation costs, and charging, queuing, and detouring delays. The problem is solved using a decomposition technique incorporating a commercial solver for small networks, and a heuristic algorithm for large-scale networks, in addition to the Golden Section method. The solution quality and significant superiority in the computational efficiency of the decomposition approach are confirmed in comparison with the implicit enumeration approach. Furthermore, the required infrastructure to support urban trips is explored for future market shares and technologies.

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Different charging infrastructures along with smart charging strategies for…

Different charging infrastructures along with smart charging strategies for electric vehicles
Sulabh Sachan, Sanchari Deb, Sri Niwas Singh
Sustainable Cities and Society

The accelerating energy demand, growing concern regarding global warming and climate change has paved the path of electrification of the transport sector. Large scale adoption of Electric Vehicles (EVs) call for availability of sustainable and easily accessible charging infrastructure. The sporadic energy demand, different battery storage capacity and diverse penetrating patterns of electric vehicles have significantly raised the load elasticity on a power grid. Smart-grid environment promises to assist the addition of EVs into national grids by enabling both EV-charging and discharging (G2V and V2G) load. This will modify the load profile and reduce cost.This paper discusses comprehensively three basic infrastructures by which charging of EVs can be done. These infrastructures are studied and compared on the basis of some parameters. It has been found that distributed infrastructure shows best results for the charging of electric vehicles. The other two infrastructures prove costlier and increase power demand. Also, this paper examines three specific smart charging strategies and the impact of each strategy on the power system load profile and realization cost. Simulation results establish the superiority of smart charging over dumb charging.