Protective circuit and method for multi-level converter

Details Protective circuit and method for multi-level converter Protective circuit and method for multi-level converter

2007-05-25

2009-08-11

Laxton, Gary L (Department: 2838)

Electric power conversion systems

Current conversion

Including automatic or integral protection means

C363S037000

Reexamination Certificate

active

07573732

ABSTRACT:
A protective circuit for a multi-level converter including a DC link capacitor bank includes: an energy absorbing element; switches, wherein at least two of the switches each couple the energy absorbing element to the capacitor bank; and a controller configured to provide control signals to the switches to selectively actuate the switches to enable control of energy dissipation and to enable control of voltage balance on the capacitor bank of the multi-level converter.

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