Electricity: motive power systems – Automatic and/or with time-delay means – Anti-hunting
Reexamination Certificate
2006-01-17
2006-01-17
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Automatic and/or with time-delay means
Anti-hunting
C318S509000, C363S037000, C336S165000, C336S221000
Reexamination Certificate
active
06987372
ABSTRACT:
A motor drive and a choke therefor are disclosed, wherein the choke comprises a magnetic core with an inner leg and two outer legs, and four coils, which may be connected in DC current paths in the motor drive. First and second differential coils are wound around first and second outer legs, respectively; and first and second common-mode coils are wound around the inner leg of the choke. The first and second differential coils smooth the DC current on a DC bus in the motor drive, and the first and second common-mode coils suppress common-mode voltages in the motor drive. Also disclosed is a method for suppressing common-mode voltages in a motor drive.
REFERENCES:
patent: 1553989 (1925-09-01), Casper
patent: 3231841 (1966-01-01), Ohtake
patent: 3546571 (1970-12-01), Fletcher et al.
patent: 3612973 (1971-10-01), Kuniyoshi
patent: 3708744 (1973-01-01), Stephens et al.
patent: 3803479 (1974-04-01), Rathor
patent: 3839686 (1974-10-01), Vogl
patent: 3887862 (1975-06-01), Hubner
patent: 4088942 (1978-05-01), Miko
patent: 4134055 (1979-01-01), Akamatsu
patent: 4422056 (1983-12-01), Roberts
patent: 4739466 (1988-04-01), Glennon et al.
patent: 4795959 (1989-01-01), Cooper
patent: 4849950 (1989-07-01), Sugiura et al.
patent: 4864478 (1989-09-01), Bloom
patent: 4888675 (1989-12-01), Kumar et al.
patent: 5077543 (1991-12-01), Carlile
patent: 5083101 (1992-01-01), Frederick
patent: 5111373 (1992-05-01), Higaki
patent: 5119059 (1992-06-01), Covi et al.
patent: 5136455 (1992-08-01), Billingsley
patent: 5155676 (1992-10-01), Spreen
patent: 5195232 (1993-03-01), Frederick
patent: 5313176 (1994-05-01), Upadhyay
patent: 5355055 (1994-10-01), Tary
patent: 5455552 (1995-10-01), Metsler
patent: 5483136 (1996-01-01), Marcinkiewicz
patent: 5525951 (1996-06-01), Sunano et al.
patent: 5528205 (1996-06-01), Wong
patent: 5552976 (1996-09-01), Munro et al.
patent: 5635890 (1997-06-01), Yamaguchi et al.
patent: 5661390 (1997-08-01), Lipo et al.
patent: 5731666 (1998-03-01), Folker et al.
patent: 5747981 (1998-05-01), Callanan
patent: 5752838 (1998-05-01), Nishizawa
patent: 5808882 (1998-09-01), Mochikawa
patent: 5835364 (1998-11-01), DeWinter et al.
patent: 5903066 (1999-05-01), Enjeti et al.
patent: 5905642 (1999-05-01), Hammond
patent: 5977853 (1999-11-01), Ooi et al.
patent: 6144269 (2000-11-01), Okamoto et al.
patent: 6151228 (2000-11-01), Miyazaki et al.
patent: 6154378 (2000-11-01), Peterson et al.
patent: 6166929 (2000-12-01), Ma et al.
patent: 6178102 (2001-01-01), Stanley
patent: 6246209 (2001-06-01), Kim
patent: 6356182 (2002-03-01), Nagashima
patent: 6377479 (2002-04-01), Ayano et al.
patent: 6583598 (2003-06-01), Raith et al.
patent: 6636107 (2003-10-01), Pelly
patent: 6717301 (2004-04-01), DeDaran et al.
patent: 6828919 (2004-12-01), Gold
patent: 2004/0145442 (2004-07-01), Matsutani et al.
patent: 211905 (1960-11-01), None
patent: 1524588 (1990-02-01), None
patent: 35 26047 (1985-07-01), None
patent: 52071156 (1977-06-01), None
patent: 53014536 (1978-02-01), None
patent: 58064813 (1983-04-01), None
patent: 58081320 (1983-05-01), None
patent: 58081321 (1983-05-01), None
patent: 63261907 (1988-10-01), None
patent: 706887 (1979-12-01), None
Disclosed Anonymously, “Research Disclosure”, Oct. 1986, 2 pages.
Bin Wu, et al., “Voltage Stress on Induction Motors in Medium Voltage(3200-6900V) PWM GTO CSI Drivers”, IEEE Transactions on Power Electronics, Mar. 1997, pp. 213-220, vol. 12, No. 2.
Cengelci, et al., “New Medium Voltage PWM Inverter Topologies for Adjustable Speed AC Motor Drive System”, 1998, 7 pages.
Stephen J. Chapman, “Electric Machinery Fundamentals”, 1999, chapter 1, p. 49 shows a magnetic core structure has two air gaps, Third Edition, McGraw-Hill.
Daming, et al., “A Space Vector Modulated CSI-Based AC Drive for Multimotor Applications”, IEEE Transactions on Power Electronics, Jul. 4, 2001, 10 pages, vol. 16.
Chenggang Mei, et al., Analyzing Common-Mode Chokes For Induction Motor Devices, 2002 IEEE, 2002, pp. 1557-1562.
Bin Wu, et al., “An Integrated DC Link Choke For Elimination Of Motor Common-Mode Voltage In Medium Voltage Drives”, 2001 IEEE, 2001, pp. 2022-2027.
V. S. Kostelyanets, et al. Limitation of Phase-Ground Over Voltages in Systems With High-Capacity Thyristor Converters. Electromagnetoeffect. 1993. pp. 15-23, vol. 1- No. 1, U.S.A.
Effectiveness of a DC Bus Choke, Zener Electric PTY LTD, May 1996, 3 pages.
Navid R. Zargari, et al., An On-Line Operated Unity Power Factor PWM Rectifier for AC Drive Applications, 1994, Contereace Record of the 1994 IEEE Industry Applications Society Annual Meeting pp. 673-678, 1994, 6 pages.
Laszlo Thihanyi, Electromagnetic Compatability in Power Electronics, The IEEE Press 1995, pp. 125-130 and 182-187, Sarasota, Florida U.S.A.
Navid R. Zargari, et al., Input Filter Design for PWM current-Source Rectifiers, IEEE Transactions on Industry Applications, Dec. 1994, pp. 1573-1579 vol. 30- No. 6.
J. A. Oliver, et al., Adjustable-Speed Drive Retrofit for Ormond Beach FD Fans, IEEE Transactions on Energy Conversion, Sep. 1992, pp. 580-588 vol. 7- No. 3.
Rizzo Steven C.
Wu Bin
Xiao Yuan
Zagari Navid R.
Amin & Turocy LLP
Kuszewski Alexander R.
Ro Bentsu
Rockwell Automation Technologies Inc.
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