High Efficient DC Power Supply System for Electric Vehicle to Green Base Station

Conventional wireless base stations are powered only from commercial power sources and are rendered unusable when a power outage occurs due to a disaster. Downed communication networks should be avoided as much as possible in the event of a disaster, and efforts have been made to make wireless base stations more operational by installing solar power generation and storage batteries. By making it possible to share power with electric vehicle (EV), wireless base stations and EV can be effectively utilized in times of disaster. We are aiming to develop a “disaster-resistant wireless base station” by developing a converter that can perform power transfer in both directions over a wide range of power levels, large and small. In this paper, we report on the various operations required for power coordination between wireless base stations and EV, which were verified through actual device verification.