Load Management
Intelligent control of charging currents
Planning and implementing an efficient and reliable charging infrastructure for companies, property owners and fleet operators requires a well thought-out concept.
Not only the selection of suitable hardware is crucial, but also the professional and intelligent control of energy flows and the possibility of connection and integration into an energy management system matter. Charging and load management is therefore essential for a well-planned charging infrastructure.
Charging and load management. What is that?
The available charging current is optimally distributed between the active charging points to avoid overloading the power grid.
Advantages
- Increased efficiency through optimal utilisation of the charging infrastructure.
- Cost reduction through reduction of peak loads.
- Scalability for the development of charging parks.
- Avoidance of grid connection extensions.
- Possibility of integrating renewable energies.
There are basically two types
Static load management
With static load management, a constant amount of electricity is allocated to the charging park.
This is distributed to all consumers in the charging park, thus preventing the target from being exceeded and expensive peak loads from being reached.
Low technical effort: Static load management requires less technical infrastructure and software, which can reduce implementation and maintenance costs.
Stability: The fixed charging capacity ensures that the load is evenly distributed throughout the day, resulting in a stable system load.
Predictable costs: As the charging capacity is fixed, companies and operators can better plan and calculate energy costs.
Dynamic load management
Dynamic load management is also based on a predefined maximum value of available electricity.
The actual quantity arriving at the charging park is constantly remeasured at very short intervals by a charging controller and then distributed to the consumers in the charging park.This means that the property's electricity is always optimally utilised and expensive peak loads are avoided.
Avoidance of overloads: By dynamically adjusting the charging power, the mains connection is not overloaded, resulting in a more stable power supply
Optimum utilisation of net capacity:T he available power is distributed efficiently so that all charging points can be used simultaneously without causing bottlenecks.
Cost savings: Costly peak loads are avoided, which has a positive effect on the electricity bill.
The RZB ENERGY charging solutions are designed for static and dynamic load management thanks to the Phoenix Contact charging controller.
Higher-level load management via HEMS
If parameters such as PV surplus charging are to be implemented in the charging strategy, it is necessary to integrate the charging park into a higher-level home energy management system (HEMS for short).
Optimisation of energy consumption: The intelligent control system adjusts energy consumption in real time, resulting in more efficient use of the available energy.
Integration of renewable energies:The system can utilise surplus energy from photovoltaic systems or other renewable sources to charge electric vehicles.