Damping system

Details Damping system Damping system

2006-04-25

2006-04-25

Han, Jessica (Department: 2838)

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

C363S095000, C322S025000

Reexamination Certificate

active

07035124

ABSTRACT:
An active damping arrangement for a power conditioning circuit comprising a converter or an inverter and an electronically driven output line having an output terminal for connecting to an external load, the active damping arrangement comprising an inductor-capacitor low-pass output filter (OPF) for connecting between an output of the inverter/converter (PWMVC or BBHCC) and the output terminal; means for sensing current in or voltage across the capacitor or voltage between one end of the capacitor (C) and an effective neutral point; means for multiplying the sensed voltage or current by a coefficient G to provide a damping signal, and means for feeding back the damping signal to an input of the inverter/converter (PWMVC or BBHCC), thereby to damp the output of the inverter/converter.

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patent: 5128853 (1992-07-01), Heinle
patent: 5381328 (1995-01-01), Umezawa et al.
patent: 5666255 (1997-09-01), Muelleman
patent: 5734249 (1998-03-01), Pohjalainen et al.
patent: 5892675 (1999-04-01), Yatsu et al.
patent: 0358191 (1990-03-01), None
patent: 0595319 (1994-05-01), None
patent: 05244702 (1993-09-01), None

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