Partial regeneration in a multi-level power inverter

Details Partial regeneration in a multi-level power inverter Partial regeneration in a multi-level power inverter

2011-05-10

2011-05-10

Sterrett, Jeffrey L (Department: 2838)

Electric power conversion systems

Current conversion

Having plural converters for single conversion

C363S037000, C363S039000, C363S078000

Reexamination Certificate

active

07940537

ABSTRACT:
In one embodiment, the present invention includes a medium voltage drive system having multiple power cells each to couple between a transformer and a load. A first subset of the power cells are configured to provide power to the load and to perform partial regeneration from the load, and a second subset of the power cells are configured to provide power to the load but not perform partial regeneration. A controller may be included in the system to simultaneously control a DC bus voltage of at least one of the first subset of the power cells, correct a power factor of the system, and provide harmonic current compensation for the system.

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