Traveling noncontact power supply system

A traveling noncontact power supply system that supplies, in a noncontact manner, power from a road-side power supply device to a traveling vehicle in which a vehicle-side power receiving device is mounted, and charges a power storage device mounted on the vehicle, wherein:

• the road-side power supply device includes a first communication device that performs wide-area wireless communication with the vehicle-side power receiving device, and a second communication device that performs narrow-area wireless communication with the vehicle-side power receiving device;
• the vehicle-side power receiving device includes a third communication device that performs the wide-area wireless communication with the road-side power supply device, and a fourth communication device that performs the narrow-area wireless communication with the road-side power supply device;
• the vehicle is able to charge the power storage device by performing regenerative braking;
• and
• when compatibility between the road-side power supply device and the vehicle-side power receiving device is satisfied and there is a possibility that the power storage device is overcharged, predetermined charging control is performed through the narrow-area wireless communication, and when compatibility between the road-side power supply device and the vehicle-side power receiving device is satisfied and there is no possibility that the power storage device is overcharged, the predetermined charging control is not performed through the narrow-area wireless communication.