According to the principle, electrical installers and company technicians can modify the charging stations, and also mixed operations can be put. Once the operation of the first charging station is set, gradually the charging infrastructure is expanded.
As the charging infrastructure is constantly growing from a few charging stations to an extensive charging park with a stable energy supply is rising. Charging parks with planners and builders are increasingly faced with a challenge for achieving the optimum charging performance where each charging point is ensured safely with a limited grid connection and is highly operation able.
To achieve this pre-requisite, functional load management is required. It consists of static and dynamic load management.
Static load management means that the charging points are enabled or disabled depending on the available energy. It is independent of the power drawn at each charging point.
Dynamic load management is defined as the current power consumption of the charging points, that is reacted at any time — depending on the available connected load. An important criterion here is also whether the charging process is one-, two- or three-phase.
In both cases of static or dynamic load management, the connected load can change during operation, and the load management must react appropriately to the change. In this case, the charging infrastructure becomes an integral part of a higher-level energy management system.