Inverter device

Details Inverter device Inverter device

2006-09-19

2006-09-19

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Positional servo systems

With signal-, voltage-, or current-limiting

C318S635000, C318S634000, C318S641000, C318S650000, C361S031000, C374S169000

Reexamination Certificate

active

07109680

ABSTRACT:
An object is to provide an inverter device capable of realizing exact protection of the winding of a motor. An inverter device for generating a pseudo alternating current by switching a direct current to drive a motor, comprises a controller that executes vector control on the basis of a secondary current applied to the motor. The controller calculates a current density from the secondary current to execute a predetermined protection operation on the basis of the calculated current density. The controller imposes a restriction on the operation frequency of the motor on the basis of the current density.

REFERENCES:
patent: 4336001 (1982-06-01), Andrew et al.
patent: 4494162 (1985-01-01), Eyler
patent: 4977751 (1990-12-01), Hanson
patent: 5054294 (1991-10-01), Dudley
patent: 5222368 (1993-06-01), Hanson
patent: 5669231 (1997-09-01), Itoh et al.
patent: 5701753 (1997-12-01), Iritani
patent: 5713724 (1998-02-01), Centers et al.
patent: 6114828 (2000-09-01), Matsunaga et al.
patent: 6122153 (2000-09-01), Becker
patent: 6147470 (2000-11-01), Ohashi et al.
patent: 6215261 (2001-04-01), Becerra
patent: 6222349 (2001-04-01), LeRow et al.
patent: 6229278 (2001-05-01), Garces et al.
patent: 6254353 (2001-07-01), Polo et al.
patent: 6278256 (2001-08-01), Aoyama
patent: 6288510 (2001-09-01), Toyama
patent: 6313593 (2001-11-01), Matsubara et al.
patent: 6324038 (2001-11-01), Kishibe et al.
patent: 6335608 (2002-01-01), Takahashi
patent: 6381971 (2002-05-01), Honda
patent: 6414455 (2002-07-01), Watson
patent: 6430949 (2002-08-01), Noro et al.
patent: 6459230 (2002-10-01), Tao
patent: 6461112 (2002-10-01), Ohta et al.
patent: 6471486 (2002-10-01), Centers et al.
patent: 6492790 (2002-12-01), Yoshikawa et al.
patent: 6525506 (2003-02-01), Jin
patent: 6563288 (2003-05-01), Ueno et al.
patent: 6651450 (2003-11-01), Tamegai et al.
patent: 6710580 (2004-03-01), Shinba
patent: 6800952 (2004-10-01), Blackburn et al.
patent: 6809428 (2004-10-01), Blackburn et al.
patent: 6815924 (2004-11-01), Iura et al.
patent: 6828744 (2004-12-01), Na
patent: 6844700 (2005-01-01), Sakai et al.
patent: 6854881 (2005-02-01), Nada
patent: 6897629 (2005-05-01), Wilton et al.
patent: 2002/0074974 (2002-06-01), Shinba
patent: 2002/0097020 (2002-07-01), Ueno et al.
patent: 2002/0149341 (2002-10-01), Tao
patent: 2004/0001291 (2004-01-01), Boeffel
patent: 2004/0080333 (2004-04-01), Klein
patent: 2004/0085087 (2004-05-01), Zehentner et al.
patent: 2004/0114400 (2004-06-01), Shinba
patent: 2004/0174723 (2004-09-01), Yamanaka et al.
patent: 2004/0201359 (2004-10-01), Kumar
patent: 2004/0207967 (2004-10-01), Ohshima
patent: 2004/0239271 (2004-12-01), Matsubara et al.
patent: 2005/0071090 (2005-03-01), Katou
patent: 2005/0174075 (2005-08-01), Kubo et al.
patent: 2005/0174090 (2005-08-01), Hayashi
patent: 0 539 163 (1993-04-01), None
patent: 0 599 608 (1994-06-01), None
patent: 02187050 (1990-07-01), None
patent: 06070533 (1994-03-01), None
patent: 2629664 (1997-04-01), None
patent: WO 01/10001 (2001-02-01), None

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