Common Dc Bus Drive System - Danfoss iC7 Series Design Manual

Design Guide | iC7 Series Air-cooled System Modules
45–75°
Figure 4: Lifting the Integration Unit

Common DC Bus Drive System

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A common DC bus drive system consists of one or more front-end modules (AFE, GC, or NFE) that convert the mains AC voltage into DC
voltage and current, providing power to the common DC bus. A grid converter can also be used to form a local AC grid.
The common DC bus transfers the power to the inverter modules. The regenerative braking energy of an inverter can be used by the
other inverters.
A common DC bus drive system can also include a brake chopper module or a DC/DC converter and an energy storage.
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Figure 5: An Example of a Common DC Bus Drive System
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