Strategic Planning of Public Charging Infrastructure

With an increasing number of electric vehicles, the strategic planning of public charging infrastructure becomes more important. In this work, the infrastructure of the charging stations in a large city is simulated. Here, various influencing factors such as number of users, charging time, charging frequency, type of the charging station and billing model are modified in order to obtain the optimal construction and operation of public charging infra-structure. The results illustrate conditions under which a system for public charging infrastructure becomes un-stable as the number of users increases. In addition, it is shown, which measures should be used to improve the system characteristics. The results of the simulation reveal that with an increasing number of users a switch of the billing model can be more effective than the construction of additional charging station. Furthermore, it makes sense to construct distributed single charging points in a city at the beginning of the development phase and to switch to satellite systems with more charging points once the number of users has increased sufficiently.