IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0431206
(2012-03-27)
|
등록번호 |
US-8794903
(2014-08-05)
|
발명자
/ 주소 |
- Fedor, John W.
- Cironi, Mark L.
|
출원인 / 주소 |
- Green Energy Technologies, LLC
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
49 |
초록
▼
A wind energy systems includes a shroud for each turbine. The shroud is adapted to direct and accelerate wind towards the turbine. A strong adaptable support assembly is provided for securing turbines to a structure. An air glide yaw assembly facilitates rotational movement of the structure allowing
A wind energy systems includes a shroud for each turbine. The shroud is adapted to direct and accelerate wind towards the turbine. A strong adaptable support assembly is provided for securing turbines to a structure. An air glide yaw assembly facilitates rotational movement of the structure allowing the turbines to face oncoming wind. The turbine blades are optimized for use with a shroud.
대표청구항
▼
1. A wind turbine system comprising: a shroud having an entrance portion configured to receive a fluid flow into the shroud, an exit portion configured to exhaust the fluid flow from the shroud, and a throat portion operatively coupling the entrance portion with the exit portion;a rotor assembly com
1. A wind turbine system comprising: a shroud having an entrance portion configured to receive a fluid flow into the shroud, an exit portion configured to exhaust the fluid flow from the shroud, and a throat portion operatively coupling the entrance portion with the exit portion;a rotor assembly comprising a hub and a plurality of blades operatively coupled with the hub, the plurality of blades being positioned relative to the shroud to convert energy of the fluid flow into the shroud into rotary mechanical movement of the rotor assembly;an electric generator assembly operatively coupled with the rotor assembly and configured to convert the rotary mechanical movement of the rotor assembly into electric energy, the electric generator assembly comprising a servo motor and a position encoder; anda sensor configured to generate a signal representative of a speed of at least one of the rotor assembly or the electric generator. 2. The wind turbine system according to claim 1, wherein the sensor comprises a position encoder. 3. The wind turbine system according to claim 1, further comprising: a controller configured to adjust an operational parameter of the rotor assembly in accordance with the signal. 4. The wind turbine system according to claim 3, wherein the controller is configured to adjust a pitch of the plurality of blades relative to the hub in accordance with the signal. 5. The wind turbine system according to claim 4, wherein the entrance portion of the shroud has an entrance diameter, the throat portion has a throat diameter and the exit portion has an exit diameter, wherein the entrance diameter is greater than throat diameter. 6. The wind turbine system according to claim 5, wherein the throat diameter is 2% to 20% larger than the diameter of the diameter of the rotor assembly, allowing rotation and deflection of the rotor assembly without contact between the blades and shroud. 7. The wind turbine system according to claim 5, the transition from inlet diameter to throat diameter being smooth and gradual and the pitch of the shroud being 15 degrees to 60 degrees. 8. The wind turbine system according to claim 5, the shroud being adapted to receive wind having an entrance wind velocity and accelerate the received wind to a throat wind velocity, the throat wind velocity being 1.25 to 2.5 times the entrance wind velocity. 9. The wind turbine system according to claim 1, further comprising: a support structure; anda horizontal actuator operably coupled between the support structure and a nacelle housing the rotor assembly and the electric generator assembly, said horizontal actuator being adapted to controllably move the nacelle relative to the support structure from a deployed operational position to a retracted maintenance position. 10. The wind turbine system according to claim 1, further comprising: a support structure;a nacelle operably coupled with the support structure and configured to house the electric generator assembly; anda yaw system adapted to rotate the rotor assembly, support structure and nacelle. 11. The wind turbine system according to claim 1, further comprising: a support structure;a nacelle operably coupled with the support structure and configured to house the electric generator assembly; anda yaw system adapted to rotate the rotor assembly, support structure and nacelle, said support structure being mounted atop said yaw system. 12. A wind turbine system comprising: a shroud having an entrance portion configured to receive a fluid flow into the shroud, an exit portion configured to exhaust the fluid flow from the shroud, and a throat portion operatively coupling the entrance portion with the exit portion;a rotor assembly comprising a hub and a plurality of blades operatively coupled with the hub, the plurality of blades being positioned relative to the shroud to convert energy of the fluid flow into the shroud into rotary mechanical movement of the rotor assembly;an electric generator assembly operatively coupled with the rotor assembly and configured to convert the rotary mechanical movement of the rotor assembly into electric energy; and,a sensor configured to generate a signal representative of a speed of at least one of the rotor assembly or the electric generator, wherein:the sensor comprises a position encoder;the generator comprises a servo motor having a motor input shaft; and,the position encoder is configured to produce output signals corresponding to a position of the input shaft. 13. A wind turbine system comprising: a shroud having an entrance portion configured to receive a fluid flow into the shroud, an exit portion configured to exhaust the fluid flow from the shroud, and a throat portion operatively coupling the entrance portion with the exit portion;a rotor assembly comprising a hub and a plurality of blades operatively coupled with the hub, the plurality of blades being positioned relative to the shroud to convert energy of the fluid flow into the shroud into rotary mechanical movement of the rotor assembly;an electric generator assembly operatively coupled with the rotor assembly and configured to convert the rotary mechanical movement of the rotor assembly into electric energy;a sensor configured to generate a signal representative of a speed of at least one of the rotor assembly or the electric generator;a support structure;a nacelle operably coupled with the support structure and configured to house the electric generator assembly; anda yaw system adapted to rotate the rotor assembly, support structure and nacelle, said support structure being mounted atop said yaw system, wherein the yaw system comprises an air glide bearing turntable. 14. The wind turbine system according to claim 13, wherein the yaw system comprises a gearbox, a drive gear, and a motor, said motor driving the gear box, which drives the drive gear, which drives the turntable. 15. The wind turbine system according to claim 14, wherein the yaw system comprises a central air chamber sandwiched between the air glide bearing turntable and the base, and adapted to receive pressurized gas sufficient to exert an upward force equal to 0.5 to 1.5 times a weight of the air glide bearing turntable plus a weight supported by the air glide bearing turntable. 16. The wind turbine system according to claim 15, wherein the yaw system comprises a gasket sandwiched between the air glide bearing turntable and the base. 17. The wind turbine system according to claim 16, wherein: the central air chamber is configured to receive compressed air with a dispersed lubricant; and,the gasket is a polytetrafluoroethylene (PTFE)-based gasket. 18. A wind turbine system comprising: a shroud having an entrance portion configured to receive a fluid flow into the shroud, an exit portion configured to exhaust the fluid flow from the shroud, and a throat portion operatively coupling the entrance portion with the exit portion;a rotor assembly comprising a hub and a plurality of blades operatively coupled with the hub, the plurality of blades being positioned relative to the shroud to convert energy of the fluid flow into the shroud into rotary mechanical movement of the rotor assembly;an electric generator assembly operatively coupled with the rotor assembly and configured to convert the rotary mechanical movement of the rotor assembly into electric energy, said generator comprising a servo motor having a motor input shaft, and a position encoder adapted to produce an output signal corresponding to a position of the input shaft, and the system comprising a speedup assembly with a speedup input shaft and an output speedup shaft, said output speedup shaft being adapted to rotate at about 1,500 rpm when said speedup input shaft rotates at about 30 to 60 rpm, and said output speedup shaft being coupled with the motor input shaft; and,a sensor configured to generate a signal representative of a speed of at least one of the rotor assembly or the electric generator. 19. A wind turbine system comprising: a shroud having an entrance portion configured to receive a fluid flow into the shroud, an exit portion configured to exhaust the fluid flow from the shroud, and a throat portion operatively coupling the entrance portion with the exit portion;a rotor assembly comprising a hub and a plurality of blades operatively coupled with the hub, the plurality of blades being positioned relative to the shroud to convert energy of the fluid flow into the shroud into rotary mechanical movement of the rotor assembly, wherein each of said plurality of blades has a twist of approximately 15° to 25°, with a pitch that varies from 1° to 5° near the tip to 15° to 25° near the root, and a chord length that tapers about 75% to 33% from the root the tip;an electric generator assembly operatively coupled with the rotor assembly and configured to convert the rotary mechanical movement of the rotor assembly into electric energy; and,a sensor configured to generate a signal representative of a speed of at least one of the rotor assembly or the electric generator.
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