Electric Vehicles Contributing to Power Systems by Playing a Role of Battery Energy Storage Systems

Abstract

The number of EVs is expected to increase rapidly toward carbon neutrality in 2050. They are also expected to contribute to power systems in the same way as BESS (Battery Energy Storage System) under massive renewable energy. However, EVs cannot be used in exactly the same way as BESS. This paper presents research examples of modeling of EVs in order to play a role of BESS, business potentiality of EV aggregators, and reduction of curtailed renewable energy generation by EVs. This paper also explains economical control of EV battery in consideration of battery degradation.