Joint EV Charging and Repositioning Strategy

Joint optimization of charging and repostioning decisions within a single formualtion that consideres disaggregate vehicle-level factors as well as zone-level demand. Vehicle movements that are an outcome of this decision can belong to one of the following categories:

• Do nothing

• Reposition to location

• Charge at nearest location

• Charge at specific location (quasi repositioning trip)

The joint_evcr strategy requires setting the following variables:

{
  "Joint EVCR Strategy" :{
    "Repositioning Faculty": {
      "repositioning_flag": true,
      "demand_window_size": 1.0,
      "time_tradeoff": 500,
      "alpha": 1.0,
      "EV_REPOSITIONING_MIN_SoC": 45,
      "EV_LEVEL_UTILITY_INCREASE": 100.0,
      "EV_SUPPLY_LEVEL_SOC": 40,
      "EV_QUEUE_FACTOR": 0.30		
    },
    "Charging Faculty": {
      "EV_CHARGE_IF_IDLE_FLAG": false,
      "EV_SERVE_IF_CHARGING_FLAG": false
    }
}

Important

Dean, M.D., Gurumurthy, K.M., de Souza, F., Auld, J. and Kockelman, K.M., 2022. Synergies between repositioning and charging strategies for shared autonomous electric vehicle fleets. Transportation Research Part D: Transport and Environment, 108, p.103314.https://doi.org/10.1016/j.trd.2022.103314