Variable speed drive

Details Variable speed drive Variable speed drive

2011-08-23

2011-08-23

Leykin, Rita (Department: 2837)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

C361S001000, C361S031000, C324S509000, C324S508000, C324S541000, C324S544000, C324S551000, C318S563000

Reexamination Certificate

active

08004803

ABSTRACT:
Systems and methods for improved Variable Speed Drives are provided. One embodiment relates to apparatus for common mode and differential mode filtering for motor or compressor bearing protection when operating with Variable Speed Drives, including conducted EMI/RFI input power mains mitigation. Another embodiment relates to a method to extend the synchronous operation of an active converter to the AC mains voltage during complete line dropout. Another embodiment relates to an active converter-based Variable Speed Drive system with Improved Full Speed Efficiency. Another embodiment relates to a liquid- or refrigerant-cooled inductor. The liquid- or refrigerant-cooled inductor may be used in any application where liquid or refrigerant cooling is available and a reduction in size and weight of a magnetic component is desired.

REFERENCES:
patent: 3593103 (1971-07-01), Chandler et al.
patent: 4308491 (1981-12-01), Joyner, Jr. et al.
patent: 4587474 (1986-05-01), Espelage et al.
patent: 4758771 (1988-07-01), Saito et al.
patent: 5081368 (1992-01-01), West
patent: 5123080 (1992-06-01), Gillett et al.
patent: 5127085 (1992-06-01), Becker et al.
patent: 5298848 (1994-03-01), Ueda et al.
patent: 5410230 (1995-04-01), Bessler et al.
patent: 5592058 (1997-01-01), Archer et al.
patent: 5625548 (1997-04-01), Gold et al.
patent: 5646458 (1997-07-01), Bowyer et al.
patent: 5726873 (1998-03-01), Gold et al.
patent: 5747955 (1998-05-01), Rotunda et al.
patent: 5796234 (1998-08-01), Vrionis
patent: 5869946 (1999-02-01), Carobolante
patent: 5936855 (1999-08-01), Salmon
patent: 5953224 (1999-09-01), Gold et al.
patent: 5969966 (1999-10-01), Sawa et al.
patent: 6005362 (1999-12-01), Enjeti et al.
patent: 6072302 (2000-06-01), Underwood et al.
patent: 6118676 (2000-09-01), Divan et al.
patent: 6160722 (2000-12-01), Thommes et al.
patent: 6163472 (2000-12-01), Colby
patent: 6239513 (2001-05-01), Dean et al.
patent: 6276148 (2001-08-01), Shaw
patent: 6313600 (2001-11-01), Hammond et al.
patent: 6348775 (2002-02-01), Edelson et al.
patent: 6411529 (2002-06-01), Svensson
patent: 6487096 (2002-11-01), Gilbreth et al.
patent: 6559562 (2003-05-01), Rostron
patent: 6608452 (2003-08-01), Holmes
patent: 6686702 (2004-02-01), Holmes
patent: 6686718 (2004-02-01), Jadric et al.
patent: 6768284 (2004-07-01), Lee et al.
patent: 6801019 (2004-10-01), Haydock et al.
patent: 7081734 (2006-07-01), Jadric et al.
patent: 7358625 (2008-04-01), Cheng et al.
patent: 7555912 (2009-07-01), Schnetzka et al.
patent: 7619906 (2009-11-01), Schnetzka
patent: 2003/0015873 (2003-01-01), Khalizadeh et al.
patent: 2003/0052544 (2003-03-01), Yamamoto et al.
patent: 2005/0068001 (2005-03-01), Skaug et al.
patent: 2005/0099743 (2005-05-01), Lee
patent: 2007/0063668 (2007-03-01), Schnetzka et al.
patent: 2007/0151272 (2007-07-01), Cosan et al.
patent: 2010/0079093 (2010-04-01), Kitanaka
patent: 0272776 (1988-06-01), None
patent: 0283954 (1988-09-01), None
patent: 0313366 (1989-04-01), None
patent: 0422221 (1989-11-01), None
patent: 0571657 (1993-01-01), None
patent: 1122849 (2001-08-01), None
patent: 9314559 (1993-07-01), None
patent: 9732168 (1997-09-01), None
patent: 2006093647 (2006-09-01), None
Annabelle Van Zyl, Rene Spee, Alex Faveluke, and Shibashis Bhowmik; Voltange Sag Ride-Through for Adjustable-Speed Drives With Active Rectifiers; Nov./Dec. 1998; vol. 34, Issue No. 6; IEEE Transactions on Industry Applications.
Annette Von Jouanne, Prasad N. Enjeti, and Basudeb Banerjee; Assessment of Ride-Through Alternatives for Adjustable-Speed Drives; Jul./Aug. 1999; vol. 35, Issue No. 4; IEEE Transactions on Industry Applications.
Christian Klumpner and Frede Blaabjerg; Using Reverse Blocking IGBTs in Power Converters for Adjustable Speed Drives; 0-780307883-0/03 2003; Aalborg University, Institute of Energy Technology.

Affiliated with

Also associated with

Rating

Variable speed drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable speed drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable speed drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2773251