Converter apparatus, inverter apparatus, and DC link voltage...

Electricity: motive power systems – Induction motor systems – Primary circuit control

Reexamination Certificate

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Details

C320S137000, C320S138000, C320S166000, C363S034000, C363S037000, C363S116000

Reexamination Certificate

active

07135835

ABSTRACT:
The invention is directed to the provision of a converter apparatus, an inverter apparatus, and a DC link voltage control method, wherein the upper limit value of the DC link voltage that rises due to regenerative energy occurring from a motor is set high, thereby increasing the regenerative energy to be stored in a DC link. The converter apparatus (10) comprises: a voltage detection part (11) for monitoring the DC link voltage occurring across the DC link (30); and a charge stopping part (12) for stopping charging a power storage part (C) when the detected value of the DC link voltage exceeds a predetermined upper limit voltage as the motor (3) is decelerated.

REFERENCES:
patent: 5814954 (1998-09-01), Suzuki et al.
patent: 6118678 (2000-09-01), Limpaecher et al.
patent: 6801019 (2004-10-01), Haydock et al.
patent: 6804126 (2004-10-01), Lucas
patent: 7042178 (2006-05-01), Yamada et al.
patent: 2002/0053490 (2002-05-01), Banno et al.
patent: 2003/0089557 (2003-05-01), Eilinger
patent: 2003/0107349 (2003-06-01), Haydock et al.
patent: 2004/0217728 (2004-11-01), Kawaji et al.
patent: 2005/0099829 (2005-05-01), Wei et al.
patent: 3107831 (2000-09-01), None

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