Invention Grant
- Patent Title: Protective circuit and method for multi-level converter
- Patent Title (中): 多电平转换器的保护电路和方法
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Application No.: US11753794Application Date: 2007-05-25
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Publication No.: US07573732B2Publication Date: 2009-08-11
- Inventor: Ralph Teichmann , Changyong Wang , Robert William Delmerico , Zhuohui Tan , Robert Roesner , Renchang Dai
- Applicant: Ralph Teichmann , Changyong Wang , Robert William Delmerico , Zhuohui Tan , Robert Roesner , Renchang Dai
- Applicant Address: US NY Niskayuna
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Niskayuna
- Agent Ann M. Agosti
- Main IPC: H02H7/122
- IPC: H02H7/122 ; H02M5/458

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.
Public/Granted literature
- US20080291708A1 PROTECTIVE CIRCUIT AND METHOD FOR MULTI-LEVEL CONVERTER Public/Granted day:2008-11-27
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