Method and apparatus for pre-charging power converters and...

Details Method and apparatus for pre-charging power converters and... Method and apparatus for pre-charging power converters and...

2011-04-19

2011-04-19

Vu, Bao Q (Department: 2838)

Electric power conversion systems

Current conversion

Including automatic or integral protection means

C363S053000, C363S081000, C363S084000, C363S125000, C363S126000

Reexamination Certificate

active

07929323

ABSTRACT:
Power conversion systems and diagnostic techniques are presented for detecting suspected converter faults when a pre-charge circuit is engaged during system startup, in which known or estimated system characteristics are used to derive expected converter voltage values or rate of change values and the levels are measured during startup to ascertain whether the pre-charge circuit or other converter components are faulted.

REFERENCES:
patent: 5715154 (1998-02-01), Rault
patent: 6157097 (2000-12-01), Hirose et al.
patent: 6646842 (2003-11-01), Pan et al.
patent: 7233465 (2007-06-01), Lee
patent: 7505291 (2009-03-01), Wang et al.
patent: 2002/0191426 (2002-12-01), Hussein et al.
patent: 2003/0035311 (2003-02-01), Phadke

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