7 Which options do I have for changing an application from AC to DC?

1.    Complete conversion from AC to DC
2.    Modular conversion of individual plant sections to DC in an existing AC system
3.    Use of devices that can be operated on AC as well as on DC
4.    Expansion of applications in which DC systems already exist, e.g. for computer centres

 

 

7.1 What potential is offered by a complete change from AC to DC?

This is suitable for new plants and uses all the advantages of the DC systems such as energy efficiency and availability as described in question 1.

 

7.2 Where does a modular conversion of individual system components from AC to DC make sense?

This can be easily and quickly integrated into existing plants for replacement or expansion. The new or replaced plant section is connected to the AC system via an active infeed converter (AIC).

 

 

7.3 Where can devices that are compatible with both AC and DC be used?

Such devices are integrated in industrial DC grids as small consumers via suitable power supplies (DC/AC or DC/DC converters).

 

 

7.4 What must be taken into account when expanding DC systems?

The new and existing system can be coupled with each other, with different voltages via DC-DC converters. The voltage bands from question 3 should be taken into account here.