[특허]Electricity generator

Electricity generator 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H05B-003/78 H02P-009/04 H05B-003/00 H02P-009/46 F03D-007/02 F03D-009/00 H02P-009/30 H02P-101/15
출원번호	US-0865559 (2009-02-02)
등록번호	US-9431944 (2016-08-30)
우선권정보	GB-0801936.6 (2008-02-01)
국제출원번호	PCT/GB2009/000307 (2009-02-02)
§371/§102 date	20100830 (20100830)
국제공개번호	WO2009/095702 (2009-08-06)
발명자 / 주소	Gregg, John Francis Bari, Mazhar Ali
출원인 / 주소	ISIS Innovation LTD
대리인 / 주소	Workman Nydegger
인용정보	피인용 횟수 : 0 인용 특허 : 46

초록 ▼

A wind turbine and generator arrangement comprises a turbine that drives a self-excited induction generator via a shaft and mechanical gearbox. The induction generator includes an electrical circuit that includes a variable capacitance and a variable resistance. The variable capacitance may be constituted by a fixed capacitor and a triac under the control of a controller, or by a bank of capacitors switched by a relay under control of the controller. The variable resistance includes a triac controlled resistor or a bank of relay-switched resistors which constitute heating elements for heating domestic hot water. In use the generator frequency and voltage are allowed to ‘float’ while the optimal generator power output is maintained, but adjusting the impedance of the electrical circuit as the wind speed varies.

대표청구항 ▼

1. An electrical generator comprising: a turbine;a core;a rotor, driveable by the turbine;a rotor speed sensor that measures a turbine rotation speed and that outputs a first signal that identifies a measured turbine rotation speed;a stator having stator windings, andan electrical circuit, connected to the stator windings and presenting a load impedance to the stator windings, wherein a real component of the load impedance presented to the stator windings includes one or more resistive elements and wherein a reactance of the impedance presented to the stator windings includes one or more capacitive elements; anda controller that includes a memory that includes a lookup table storing characteristics associated with at least a magnetization of the core and a flux density of the core,wherein the controller receives the first signal from the rotor speed sensor and receives a second signal from the stator, accesses the lookup table based on the first signal and the second signal, and determines a first output and a second output from the lookup table,wherein the controller controls the selection of the impedance of the electrical circuit based upon the first output and the second output so that the generator produces a generator output whose voltage and frequency varies with wind speed across a predetermined range of wind speeds, whilst a power output remains at or adjacent a peak power output of the generator across that predetermined wind speed range,wherein the controller selects, based on the first output, at least one of the one or more capacitive elements such that a power/speed line of the electrical generator is aligned at or near a maximum of a power/speed curve for a prevailing wind speed within the predetermined wind speed range, andwherein the controller switches, based on the second output, the one or more resistive elements to modify a magnetic-non-linearity-induced slope of the power/speed curve for the prevailing wind speed. 2. The electrical generator of claim 1, wherein the one or more resistive elements are resistive heater elements. 3. The electrical generator of claim 1, further comprising a mechanical gearbox between the turbine and the rotor. 4. The electrical generator of claim 1, wherein the rotor is of the squirrel cage type.

이 특허에 인용된 특허 (46)

Tornatore Giovanni (San Benigno Canavese ITX) Bogetti Lorenzo (Piobesi Torinese ITX), Autonomous electrical power generator.
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Fradella, Richard B., Broad-speed-range generator.
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de Bennetot Michel C. (Brest FRX), Device for converting rotational kinetic energy to heat by generating eddy currents.
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Skeist, S. Merrill; Baker, Richard H., Doubly fed induction machine.
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Eisenhaure David B. ; Kirtley ; Jr. James L. ; Lansberry Geoffrey B. ; Donegan Kevin J. ; Rao Gita P., Externally field-controlled induction generator.
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Mayrand James F. (Townsend MA) Gregorich James (Merrimack NH), High power factor switched DC power supply.
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Pendell, Larry Stuart, Induction generator system and method.
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Curtiss William P. (Winthrop MA) Fulton Donald E. (Stoneham MA), Induction generator system with switched capacitor control.
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Ronchi ne Marchesin Elena (via Umberto Giordano 5 20090 Trezzano Sul Naviglio (Prov. di Milano) ITX), Instant steam generator for domestic and professional use.
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Naperkowski Susan Mary ; Klobusnik Kenneth John ; Zelina Francis John, Integral flash steam generator.
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Benot William R. (336 Pleasant St. Laconia NH 03246), Lighter than air wind energy conversion system utilizing a rotating envelope.
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Shero William K. (17287 Mt. Herrmann ; Unit A Fountain Valley CA 92708), Method for forming an in-line water heater having a spirally configured heat exchanger.
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Winterbotham Harold (Fern Howe ; Braithwaite ; Keswick Cumbria GB2 CA12), Method of an apparatus for varying the load on an A.C. generator.
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Wobben, Aloys, Method of reactive power regulation and aparatus for producing electrical energy in an electrical network.
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Ulinski, Richard J.; Rahman, Khaliqur; Clarke, Hugh C.; Heitz, W. Stephen, Mobile power generation system.
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Williams Timothy J. (Redondo Beach CA) El-Sharkawi Mohamed A. (Renton WA) Venkata Subrahmanyam S. (Seattle WA), Reactive power compensating system.
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Wobben, Aloys, Ring generator for a wind power installation.
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Heller Samuel (Westchester County NY), Rotary induction generator adapted to be driven by a prime mover for generating electric power.
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Wallace Alan K. ; Oliver James A., Rotary induction machine having control of secondary winding impedance.
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Wallace Alan K. ; Oliver James A., Rotary induction machine having control of secondary winding impedance.
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Roberts Gary Dean, Self-excited asynchronous alternating current generator with paramutual inductive coupling.
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Larsen, Einar V.; Baker, Daniel H.; Bowler, Colin E. J., Series-thyristor subsynchronous damper for power generators.
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Chiang, Li Yuan, Steam generating device.
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Cheung, Chun Ming, Steam generator.
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Bayles Peter W. (Newton Ayclisse GB2) Million Philip (Howden-le-Wear GB2), Steam generators.
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Chiang, Li-Yuan, Steam producer capable of performing dual heating processes.
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Kitano, Saburou, Switching power unit.
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Tallal, Jr., Joseph J.; Chalker, Daniel J.; Warren, Jr., Sanford E.; Flores, Edwin S., System and building for generating electricity using wind power.
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Waldschmidt John E. (New Market MN) Howland Leland L. (Belle Plaine MN), Transport refrigeration system with stand-by compressor drive motor also operable as a generator.
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Duffey, Christopher K.; Smith, Leslie R., Variable speed synchronous generator.
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Amir S. Mikhail ; Craig L. Christenson ; Kevin L. Cousineau ; William L. Erdman ; William E. Holley, Variable speed wind turbine generator.
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Mikhail Amir S. ; Christenson Craig L. ; Cousineau Kevin L. ; Erdman William L. ; Holley William E., Variable speed wind turbine generator.
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Mikhail, Amir S.; Christenson, Craig L.; Cousineau, Kevin L.; Erdman, William L.; Holley, William E., Variable speed wind turbine generator.
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Mikhail, Amir S.; Christenson, Craig L.; Cousineau, Kevin L.; Erdman, William L.; Holley, William E., Variable speed wind turbine generator.
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Mikhail, Amir S.; Christenson, Craig L.; Cousineau, Kevin L.; Erdman, William L.; Holley, William E., Variable speed wind turbine generator.
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Mikhail,Amir S.; Christenson,Craig L.; Cousineau,Kevin L.; Erdman,William L.; Holley,William E., Variable speed wind turbine generator.
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Jørgensen, Allan Holm; Helle, Lars; Schaier, Leonard, Variable speed wind turbine with a doubly-fed induction generator and rotor and grid inverters that use scalar controls.
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Mohan Narendra (Minneapolis MN) Riaz Mahmoud (Minneapolis MN), Wind energy conversion system.
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Leijon,Mats; Kylander,Gunnar, Wind power plant.
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Wobben, Aloys, Wind power plant with a transformer fixed to the tower.
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Kirschbaum Herbert S. (Wilkins Township ; Allegheny County PA), Wind turbine generator system.
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Birgel Warren J. (Golden Valley MN) Hajec Chester S. (Roseville MN), Windmill driven eddy current heater.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Electricity generator 원문보기

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Electricity generator 원문보기

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