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"System And Method For Non Sinusoidal Current Waveform Excitation Of Electrical Generators"
Abstract: An electrical generator (26) includes a stator (36) having fractional-slot concentrated windings (42) and a rotor having field windings (52). A drive (10) is provided having a circuit (24) to control current flow to the field windings (52) and a controller (28) to input an initial DC field current demand to the circuit (24) to cause the circuit (24) to output an initial DC field current representative of a DC field current demand that would cause an electrical generator (26) having sinusoidal stator (36) windings to output a desired AC power. The controller (28) receives feedback on the magnetic field generated by the initial DC field current, isolates an ideal fundamental component of the magnetic field based on the feedback and to generate a modified DC field current demand, and inputs the modified DC field current demand to the circuit (24), thereby causing the circuit (24) to output an instantaneous non-sinusoidal current to the field windings (52) to generate a sinusoidal rotating air gap magnetic field.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
13 June 2011
Publication Number
18/2012
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2022-12-08
Renewal Date
Applicants
GENERAL ELECTRIC COMPANY
1 RIVER ROAD, SCHENECTADY, NEW YORK 12345 U.S.A.
Inventors
1. EL-ANTABLY AHMED MOSTAFA
528 SAPPHIRE DRIVE CARMEL, INDIANA 46032, U.S.A.
2. EL-REFAIE AYMAN MOHAMED FAWZI
1 RESEARCH CIRCLE NISKAYUNA, NEW YORK 12309, U.S.A.
3. KING ROBERT DEAN
1 RESEARCH CIRCLE, EP-114 NISKAYUNA, NEW YORK 12309, U.S.A.
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 1672-DEL-2011-Form-3-(22-11-2011).pdf | 2011-11-22 |
| 1 | 1672-DEL-2011-RELEVANT DOCUMENTS [31-08-2023(online)].pdf | 2023-08-31 |
| 2 | 1672-DEL-2011-Correspondence Others-(22-11-2011).pdf | 2011-11-22 |
| 2 | 1672-DEL-2011-IntimationOfGrant08-12-2022.pdf | 2022-12-08 |
| 3 | Abstract.jpg | 2012-02-25 |
| 3 | 1672-DEL-2011-PatentCertificate08-12-2022.pdf | 2022-12-08 |
| 4 | 1672-del-2011-GPA.pdf | 2012-02-25 |
| 4 | 1672-DEL-2011-AMENDED DOCUMENTS [20-11-2019(online)].pdf | 2019-11-20 |
| 5 | 1672-del-2011-Form-5.pdf | 2012-02-25 |
| 5 | 1672-DEL-2011-FORM 13 [20-11-2019(online)].pdf | 2019-11-20 |
| 6 | 1672-DEL-2011-RELEVANT DOCUMENTS [20-11-2019(online)].pdf | 2019-11-20 |
| 6 | 1672-del-2011-Form-3.pdf | 2012-02-25 |
| 7 | 1672-del-2011-Form-2.pdf | 2012-02-25 |
| 7 | 1672-DEL-2011-Correspondence-180419.pdf | 2019-04-25 |
| 8 | 1672-DEL-2011-Power of Attorney-180419.pdf | 2019-04-25 |
| 8 | 1672-del-2011-Form-1.pdf | 2012-02-25 |
| 9 | 1672-DEL-2011-ABSTRACT [23-02-2019(online)].pdf | 2019-02-23 |
| 9 | 1672-del-2011-Drawings.pdf | 2012-02-25 |
| 10 | 1672-DEL-2011-CLAIMS [23-02-2019(online)].pdf | 2019-02-23 |
| 10 | 1672-del-2011-Description (Complete).pdf | 2012-02-25 |
| 11 | 1672-DEL-2011-COMPLETE SPECIFICATION [23-02-2019(online)].pdf | 2019-02-23 |
| 11 | 1672-del-2011-Correspondence-others.pdf | 2012-02-25 |
| 12 | 1672-del-2011-Claims.pdf | 2012-02-25 |
| 12 | 1672-DEL-2011-CORRESPONDENCE [23-02-2019(online)].pdf | 2019-02-23 |
| 13 | 1672-del-2011-Assignment.pdf | 2012-02-25 |
| 13 | 1672-DEL-2011-DRAWING [23-02-2019(online)].pdf | 2019-02-23 |
| 14 | 1672-del-2011-Abstract.pdf | 2012-02-25 |
| 14 | 1672-DEL-2011-FER_SER_REPLY [23-02-2019(online)].pdf | 2019-02-23 |
| 15 | 1672-DEL-2011-FER.pdf | 2018-08-23 |
| 15 | 1672-DEL-2011-OTHERS [23-02-2019(online)].pdf | 2019-02-23 |
| 16 | 1672-DEL-2011-FER.pdf | 2018-08-23 |
| 16 | 1672-DEL-2011-OTHERS [23-02-2019(online)].pdf | 2019-02-23 |
| 17 | 1672-DEL-2011-FER_SER_REPLY [23-02-2019(online)].pdf | 2019-02-23 |
| 17 | 1672-del-2011-Abstract.pdf | 2012-02-25 |
| 18 | 1672-del-2011-Assignment.pdf | 2012-02-25 |
| 18 | 1672-DEL-2011-DRAWING [23-02-2019(online)].pdf | 2019-02-23 |
| 19 | 1672-del-2011-Claims.pdf | 2012-02-25 |
| 19 | 1672-DEL-2011-CORRESPONDENCE [23-02-2019(online)].pdf | 2019-02-23 |
| 20 | 1672-DEL-2011-COMPLETE SPECIFICATION [23-02-2019(online)].pdf | 2019-02-23 |
| 20 | 1672-del-2011-Correspondence-others.pdf | 2012-02-25 |
| 21 | 1672-DEL-2011-CLAIMS [23-02-2019(online)].pdf | 2019-02-23 |
| 21 | 1672-del-2011-Description (Complete).pdf | 2012-02-25 |
| 22 | 1672-DEL-2011-ABSTRACT [23-02-2019(online)].pdf | 2019-02-23 |
| 22 | 1672-del-2011-Drawings.pdf | 2012-02-25 |
| 23 | 1672-del-2011-Form-1.pdf | 2012-02-25 |
| 23 | 1672-DEL-2011-Power of Attorney-180419.pdf | 2019-04-25 |
| 24 | 1672-del-2011-Form-2.pdf | 2012-02-25 |
| 24 | 1672-DEL-2011-Correspondence-180419.pdf | 2019-04-25 |
| 25 | 1672-DEL-2011-RELEVANT DOCUMENTS [20-11-2019(online)].pdf | 2019-11-20 |
| 25 | 1672-del-2011-Form-3.pdf | 2012-02-25 |
| 26 | 1672-del-2011-Form-5.pdf | 2012-02-25 |
| 26 | 1672-DEL-2011-FORM 13 [20-11-2019(online)].pdf | 2019-11-20 |
| 27 | 1672-del-2011-GPA.pdf | 2012-02-25 |
| 27 | 1672-DEL-2011-AMENDED DOCUMENTS [20-11-2019(online)].pdf | 2019-11-20 |
| 28 | Abstract.jpg | 2012-02-25 |
| 28 | 1672-DEL-2011-PatentCertificate08-12-2022.pdf | 2022-12-08 |
| 29 | 1672-DEL-2011-IntimationOfGrant08-12-2022.pdf | 2022-12-08 |
| 29 | 1672-DEL-2011-Correspondence Others-(22-11-2011).pdf | 2011-11-22 |
| 30 | 1672-DEL-2011-RELEVANT DOCUMENTS [31-08-2023(online)].pdf | 2023-08-31 |
| 30 | 1672-DEL-2011-Form-3-(22-11-2011).pdf | 2011-11-22 |
Search Strategy
| 1 | 1672_DEL_2011_13-03-2018.pdf |