US Patent No: 7,977,925
Number of patents in Portfolio can not be more than 2000
Systems and methods involving starting variable speed generators
Stats
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Jul 12, 2011
Issued date -
Apr 4, 2008
filing date -
12/098,134
serial no -
In Force
status
Importance
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Abstract
An exemplary method for starting a generator, the method comprising, starting a rotor with an AC voltage across the rotor. Starting a stator. Increasing a speed of the rotor.
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First Claim
Related Publications
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International Classification(s)
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,481,459 Combined starting/generating system and method | 57 | 1983 | |
| 4,625,160 Variable speed constant frequency generating system | 48 | 1984 | |
| 4,743,777 Starter generator system with two stator exciter windings | 75 | 1986 | |
| 4,947,100 Power conversion system with stepped waveform inverter having prime mover start capability | 52 | 1989 | |
| 5,015,941 Power conversion system with bi-directional power converter having prime mover start capability | 55 | 1989 | |
| 5,013,929 Power conversion system having prime mover start capability | 55 | 1989 | |
| 5,097,195 AC exciter for VSCF starter/generator | 44 | 1989 | |
| 5,031,086 Hybrid power system | 13 | 1989 | |
| 5,068,590 Brushless generator having AC excitation in generating and starting modes | 63 | 1989 | |
| 4,992,721 Inverter for starting/generating system | 53 | 1990 | |
| 5,309,081 Power conversion system with dual permanent magnet generator having prime mover start capability | 46 | 1992 | |
| 5,430,362 Engine starting system utilizing multiple controlled acceleration rates | 71 | 1993 | |
| 5,495,163 Control for a brushless generator operable in generating and starting modes | 40 | 1993 | |
| 5,594,322 Starter/generator system with variable-frequency exciter control | 102 | 1993 | |
| 5,581,168 Starter/generator system with DC link current control | 53 | 1994 | |
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| 5,483,139 Motor start, reverse and protection system without a starting capacitor | 22 | 1994 | |
| 6,504,261 Synchronous generator having auxiliary power windings and variable frequency power source and method for use | 27 | 2001 | |
| 6,600,240 Variable speed wind turbine generator | 43 | 2002 | |
| 6,856,039 Variable speed wind turbine generator | 51 | 2003 | |
| 7,119,452 Voltage control for wind generators | 18 | 2003 | |
| 6,960,900 Method and apparatus for starting a gas turbine using a polyphase electric power generator | 11 | 2003 | |
| 6,847,128 Variable speed wind turbine generator | 42 | 2004 | |
| 7,342,757 System and method for quench protection of a superconductor | 5 | 2004 | |
| 7,309,930 Vibration damping system and method for variable speed wind turbines | 34 | 2004 | |
| 2007/0069,522 Wind turbine and method for operating same | 6 | 2005 | |
| 7,423,412 Method, apparatus and computer program product for injecting current | 11 | 2006 | |
| 7,466,109 Systems and methods involving variable speed generators | 2 | 2008 | |
| 7,605,483 Integrated electrical power extraction for aircraft engines | 5 | 2008 | |
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| 6,998,726 Method and system for providing single-phase excitation techniques to a start exciter in a starter/generator system | 14 | 2002 | |
| 2006/0087,293 AC generator with independently controlled field rotational speed | 6 | 2005 | |
| 7,301,311 Brushless starter-generator with independently controllable exciter field | 7 | 2006 | |
| 7,400,056 Engine starter-generator optimized for start function | 5 | 2006 | |
| 7,514,806 Engine start system with quadrature AC excitation | 11 | 2007 | |
| 2008/0303,280 ENGINE START SYSTEM WITH QUADRATURE AC EXCITATION | 5 | 2007 | |
| 2008/0303,490 GENERATOR WITH QUADRATURE AC EXCITATION | 4 | 2007 | |
| 7,915,869 Single stage starter/generator with rotor quadrature AC excitation | 4 | 2008 | |
| 2009/0243,417 SINGLE STAGE STARTER/GENERATOR WITH ROTOR QUADRATURE AC EXCITATION | 2 | 2008 | |
| 2011/0068,753 GENERATOR WITH QUADRATURE AC EXCITATION | 2 | 2010 | |
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| 7,508,086 Aircraft engine starter/generator and controller | 9 | 2006 | |
| 2007/0222,220 Aircraft engine starter/generator and controller | 3 | 2006 | |
| 7,687,928 Dual-structured aircraft engine starter/generator | 10 | 2007 | |
| 2008/0093,850 Dual-structured aircraft engine starter/generator | 5 | 2007 | |
| 7,821,145 Aircraft engine starter/generator and controller | 3 | 2009 | |
| 2009/0174,188 AIRCRAFT ENGINE STARTER/GENERATOR AND CONTROLLER | 2 | 2009 | |
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| 6,862,538 Induction motor module and motor incorporating same | 13 | 2002 | |
| 7,135,830 System and method for identifying operational parameters of a motor | 15 | 2003 | |
| 7,184,902 Motor parameter estimation method and apparatus | 18 | 2003 | |
| 2007/0118,307 Motor parameter estimation method and apparatus | 5 | 2006 | |
| 2007/0118,308 Motor parameter estimation method and apparatus | 6 | 2006 | |
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| 6,762,512 Methods for starting a combustion turbine and combustion turbine generator configured to implement same methods | 6 | 2002 | |
| 6,799,125 Method and system for on-line monitoring of bearing insulation in an electrical generator | 2 | 2002 | |
| 7,449,795 Electric power generation system using a permanent magnet dynamoelectric machine for starting a combustion turbine and for generating uninterruptible excitation power | 4 | 2005 | |
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| 7,218,075 Electronic circuit for starting a single phase induction motor | 1 | 2004 | |
| 7,471,058 Starting device and starting method for a single-phase induction motor | 2 | 2004 | |
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| 6,838,779 Aircraft starter generator for variable frequency (vf) electrical system | 28 | 2002 | |
| 2011/0050,184 ACTIVE RECTIFICATION FOR A VARIABLE-FREQUENCY SYNCHRONOUS GENERATOR | 2 | 2009 | |
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| 2008/0277,938 Wind Power Generation System and Operating Method Thereof | 12 | 2008 | |
| 2009/0278,354 Wind turbine generator system | 5 | 2009 | |
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| 7,723,937 Drive control device of motor and a method of start-up | 2 | 2007 | |
| 2008/0100,243 DRIVE CONTROL DEVICE OF MOTOR AND A METHOD OF START-UP | 3 | 2007 | |
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| 6,566,764 Variable speed wind turbine having a matrix converter | 99 | 2001 | |
| 6,856,038 Variable speed wind turbine having a matrix converter | 61 | 2003 | |
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| 7,501,785 Starting system for a single-phase induction motor | 1 | 2004 | |
| 2007/0164,700 Starting system for a single-phase induction motor | 1 | 2004 | |
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| 6,137,187 Variable speed wind turbine generator | 103 | 1997 | |
| 6,420,795 Variable speed wind turbine generator | 67 | 2000 | |
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| 6,741,059 Controller for a wound rotor slip ring induction machine | 21 | 2002 | |
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| 5,387,859 Stepped waveform VSCF system with engine start capability | 39 | 1993 | |
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| 2009/0218,072 Cooling system for a computer system | 3 | 2005 | |
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| 5,969,497 Electric motor starting circuit | 8 | 1998 | |
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| 2010/0134,074 EXCITER ASSEMBLIES | 2 | 2006 | |
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| 7,358,698 Field-winding type of synchronous machine | 3 | 2006 | |
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| 6,636,013 Method of rapidly starting an asynchronous motor | 3 | 2002 | |
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| 5,656,922 Vehicle based AC power system | 42 | 1994 | |
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| 7,622,815 Low voltage ride through system for a variable speed wind turbine having an exciter machine and a power converter not connected to the grid | 10 | 2006 | |
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| 2009/0273,185 System for Controlling and Protecting Against Symmetrical and Asymmetrical Faults for Asynchronous-Type Generators | 1 | 2006 | |
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| 7,425,771 Variable speed wind turbine having an exciter machine and a power converter not connected to the grid | 25 | 2006 | |
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| 6,054,776 Control apparatus of parallel hybrid electric vehicle | 57 | 1998 | |
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| 4,772,814 Parallel resonant single phase motor | 16 | 1986 | |
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| 5,811,946 System and method for velocity control of a D.C. Motor | 20 | 1995 | |
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| 2009/0066,089 Wind Power Generator System and Control Method of the Same | 14 | 2007 | |
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| 6,348,743 Voltage control apparatus of engine generator and control method thereof | 7 | 2000 | |
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| 5,736,829 High-speed constant-horsepower motor | 2 | 1995 | |
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| 2007/0085,343 Method for operating or controlling a wind turbine and method for providing primary control power by means of wind turbines | 17 | 2004 | |
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| 6,486,640 Control system for variable frequency generator | 19 | 2001 | |
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| 5,929,612 Externally field-controlled induction generator | 25 | 1997 | |
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| 4,906,060 Apparatus and method for controlling the output frequency of a wind-driven alternator | 39 | 1989 | |
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| 7,411,309 Control system for doubly fed induction generator | 22 | 2004 | |
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| 4,400,659 Methods and apparatus for maximizing and stabilizing electric power derived from wind driven source | 38 | 1980 | |
| 4,458,193 Method and apparatus for controlling an AC induction motor | 6 | 1981 | |
| 5,055,700 Brushless generator having prime mover start capability | 35 | 1989 | |
| 6,252,331 Brushless, separately-excited, variable-speed motor and AC generator/alternator with solenoid-wound, biphase AC rotor | 17 | 1999 | |
| 7,023,167 Control arrangement for an induction motor compressor having at least three windings, a torque-augmentation circuit a starting capacitor and a resistive element | 2 | 2002 | |
| 2008/0150,471 Motor Starting and Switching | 1 | 2005 | |
| 7,408,321 Control arrangement for an induction motor compressor having at least three windings, a torque-augmentation circuit, a starting capacitor and a resistive element | 2 | 2006 | |
| 7,612,519 Control arrangement for an induction motor compressor having at least three windings, a torque-augmentation circuit, a starting capacitor and a resistive element | 4 | 2006 | |
| 2006/0140,788 Control arrangement for an induction motor compressor having at least three windings, a torque-augmentation circuit, a starting capacitor and a resistive element | 1 | 2006 | |
| 2007/0262,583 WIND TURBINE GENERATOR SYSTEM | 6 | 2007 | |
| 2009/0066,297 Power Generation Apparatus Using AC Energization Synchronous Generator And Method Of Controlling The Same | 6 | 2008 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
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| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 12, 2023 |
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