Three-Phase Unbalance in Heavy-Duty EV Fleet Depots: Active Load Balancer vs SVG The rapid global electrification of commercial transportation has accelerated the deployment of megawatt-scale electric bus and heavy-duty truck charging depots. A standard fleet charging hub routinely integrates 20 to 60 high-power DC fast chargers (rated at 120 kW to 360 kW each), megawatt-hour energy storage system...