Invention Grant
- Patent Title: Converter circuit for damping overcurrent oscillations
- Patent Title (中): 用于阻尼过电流振荡的转换器电路
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Application No.: US13857574Application Date: 2013-04-05
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Publication No.: US09025351B2Publication Date: 2015-05-05
- Inventor: Kefas Damazio-Coelho , Matthias Luescher , Oscar Apeldoorn , Thomas Berner
- Applicant: ABB Technology AG
- Applicant Address: CH Zurich
- Assignee: ABB Technology AG
- Current Assignee: ABB Technology AG
- Current Assignee Address: CH Zurich
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: EP10186492 20101005
- Main IPC: H02M7/48
- IPC: H02M7/48 ; H02M1/34 ; H02M7/06

Abstract:
An exemplary converter circuit has a converter unit with plural actuatable power semiconductor switches, and the DC voltage side of which is connected to a capacitive energy storage circuit. The capacitive energy storage circuit has at least one capacitive energy store and at least one snubber network for limiting the rate of current or voltage rise on the actuatable power semiconductor switches of the converter unit. In order to reduce undesirable oscillations in an overcurrent in the capacitive energy storage circuit, the capacitive energy storage circuit has at least one passive nonactuatable damping unit having a unidirectional current-flow direction, where the passive nonactuatable damping unit has a diode and a damping resistor.
Public/Granted literature
- US20130223112A1 CONVERTER CIRCUIT Public/Granted day:2013-08-29
Information query
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