A control device 200 which is formed of a vehicle control device 50, a controller 100, an inverter control device 30 and a steering control device 32 executes control to give a yaw moment to a vehicle 1 so that the vehicle 1 travels while tracing a first trolley wire 3R₁/3L₁ in a first traveling section before the vehicle 1 reaches a trolley wire linkage section C and the vehicle 1 travels while tracing a second trolley wire 3R₂/3L₂ in a second traveling section after the vehicle 1 passed through the trolley wire linkage section. In the trolley wire linkage section, a prescribed path is set from a representative point to a second target point and the control device 200 executes control to give a yaw moment to the vehicle 1 so that the vehicle 1 travels along the prescribed path and eventually tracing the second trolley wire 3R₂/3L₂.

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