Electricity: single generator systems – Automatic control of generator or driving means – Power factor or phase relationships
Reexamination Certificate
2007-02-20
2007-02-20
Ponomarenko, Nicholas (Department: 2834)
Electricity: single generator systems
Automatic control of generator or driving means
Power factor or phase relationships
C322S025000, C322S028000, C322S037000, C363S127000, C363S089000, C290S044000
Reexamination Certificate
active
11324890
ABSTRACT:
The present invention relates to a method and to a device for adapting the alternating current generated by a generator (1) and the alternating voltage generated by a generator (1) to a grid (8), whereby the generator (1) has at least one excitation coil (2). The power fed into the grid (8) can be flexibly adapted while entailing low switching losses in that a static frequency converter (9) is employed for the adaptation between the generator (1) and the grid (8), and in that, in order to control the power fed into the grid (8), means (3) are provided with which, on the one hand, the strength of the excitation field generated by the at least one excitation coil (2) is regulated and, on the other hand, the phase angle between the frequency converter voltage and the generator or grid voltage is appropriately controlled.
REFERENCES:
patent: 4800481 (1989-01-01), Knaffl et al.
patent: 4904920 (1990-02-01), Rufer
patent: 4956598 (1990-09-01), Recker et al.
patent: 5031086 (1991-07-01), Dhyanchand et al.
patent: 5225712 (1993-07-01), Erdman
patent: 5387859 (1995-02-01), Murugan et al.
patent: 5585708 (1996-12-01), Richardson et al.
patent: 5594636 (1997-01-01), Schauder
patent: 5798631 (1998-08-01), Spee et al.
patent: 6020713 (2000-02-01), Geis et al.
patent: 6208120 (2001-03-01), Gibbs
patent: 6459596 (2002-10-01), Corzine
patent: 6487096 (2002-11-01), Gilbreth et al.
patent: 6567278 (2003-05-01), Rufer et al.
patent: 6621719 (2003-09-01), Steimer et al.
patent: 6750633 (2004-06-01), Schreiber
patent: 6853094 (2005-02-01), Feddersen et al.
patent: 6856038 (2005-02-01), Rebsdorf et al.
patent: 7095130 (2006-08-01), Ichinose et al.
patent: 7102247 (2006-09-01), Feddersen
patent: 2003/0057923 (2003-03-01), Hofstetter et al.
patent: 2004/0119292 (2004-06-01), Datta et al.
patent: 101 56 694 (2003-06-01), None
patent: 0 273 598 (1988-07-01), None
patent: 1 276 224 (2003-01-01), None
patent: WO 03/008802 (2003-01-01), None
Carlos Veganzones Nicolas et al.: Guidelines for the Design and Control of Electrical Generator Systems for new Grid connected Wind Turbine Generators,28thAnnual Conference of the IEEE, vol. 4, Nov. 5-8, 2002, pp. 3317-3325.
Nikolaus P. Schibli et al.: A Three-Phase Multilevel Converter for High-Power Induction Motors, IEEE Transactions on Power Electronics, vol. 13, No. 5, Sep. 1998, pp. 978-986.
Ta Rae et al.: “Controller Structure and Design of Firing Angle Controllers for (Unit Connected) HVDV Systems”, IEEE AFRICON 4th, vol. 2, Sep. 24-27, 1996, pp. 856-863.
Hansruedi Buehler: “Convertisseurs statiques”, Presses Polytechniques et Universitaires Romandes, Collection Électricité, pp. 147-152, 222-225, and 302-305 (plus two cover pages), discussed on p. 5 of the specification of application.
Rufer Alfred
Veenstra Martin
Alstom Technology Ltd.
Darby & Darby
Ponomarenko Nicholas
LandOfFree
Frequency converter for high-speed generators does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Frequency converter for high-speed generators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency converter for high-speed generators will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3853710