Truck-based inter-station battery transportation strategy for battery swapping stations considering the intra-day irregular behavior of electric vehicles

Abstract

The battery-swapping mode has attracted academic attention due to its advantages in shortening electric vehicles (EVs) replenishment time. However, researchers are less focused on how to respond to the irregular behavior of EVs. To address this issue, a truck-based inter-station battery transportation strategy is presented in this paper, where the irregular behaviors of reservation cancellation and unspecified reservations are considered. Firstly, the electricity amount fluctuation process of the individual charging bay is accurately characterized, and the corresponding influence on the operation scheme imposed by the EV irregular behavior is quantified accordingly. On this basis, a two-step EV control strategy is established, which modifies the matching result between EVs and battery swapping stations (BSSs) using access guidance and realizes the reallocation of EV batteries through the operation of battery transporting trucks. Finally, an inter-station battery transportation strategy is designed to achieve the real-time dispatching of irregular EVs and battery-transporting trucks. Simulation results show that the proposed two-step model can enhance the service quality of BSSs and efficiently utilize battery resources under limited battery resource conditions.