Invention Grant
US07573732B2 Protective circuit and method for multi-level converter 有权
多电平转换器的保护电路和方法

Protective circuit and method for multi-level converter
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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