Conférence invitée : Electric Vehicle Charging and Power Grid Issues Scenarios versus PV-powered charging stations
Résumé
The contribution of electric vehicles (EVs) in reducing
greenhouse gas emissions depends on the energetic mix of the public
grid. On the other hand, the public grid may become vulnerable when
EVs number drastically increase, as predicted in many worldwide
scenarios. Considering several scenarios, i.e., passenger EVs
number, charging power values, EV consumption, and average daily
urban/peri-urban trip of 20 - 60 km, and based on French power grid
data, this paper investigates the power grid issues regarding the EVs
charging. The results show that the total required energy for EVs
charging can be assumed by the grid while the total required power
may represent an issue. In order to overcome this issue, a photovoltaic
(PV) powered EV charging station, including stationary storage and
public grid connection as power source backups, is introduced. Based
on a classic real time power management (rule-based algorithm),
three case studies are analyzed. The simulation tests show that for an
average daily urban/peri-urban trip of 20 - 40 km and a daily EV
charging based on a slow charging terminal associated with PV-
powered charging station may bring large advantage for the public
grid as well for the environmental footprint.
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