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Retractable wind power generator blade

A technology for wind turbines and blades, applied in the field of wind power generation equipment, can solve problems such as narrow economic wind speed range, and achieve the effects of reducing energy capture, improving stability, and expanding the applicable range of wind speed

Active Publication Date: 2015-04-15
云南滇能智慧能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a big limitation of using wind energy is the narrow range of economic wind speed

Method used

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  • Retractable wind power generator blade
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  • Retractable wind power generator blade

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Experimental program
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Effect test

Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 As shown, a retractable wind turbine blade of the present invention includes a blade main body 1, a support rod 2, a positioning ring 3, a nacelle 5, a hub 6, a blade torsion shaft 7, a hydraulic rod 8, an anemometer 9 and a control device 10, the blade main body 1 is movably connected to the hub 6 through the blade torsion angle shaft 7, and can rotate at a certain angle in the axial direction; the hydraulic rod 8 and the controller 10 are electrically connected and arranged in the nacelle 5, the hydraulic pressure The rod 8 is arranged horizontally along the axial direction. The positioning ring 3 is set on the main shaft of the wind turbine and connected to the hydraulic rod 8 and one end of the support rod 2. The other end of the support rod 2 is connected to the main body of the blade. The hydraulic rod 8...

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PUM

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Abstract

A retractable wind power generator blade comprises a blade main body, a support rod, a positioning ring, a machinery space, a wheel hub, a blade torsion angle shaft, a hydraulic pressure rod, an anemograph and a controller. The blade main body is movably connected with the wheel hub through the blade torsion angle shaft. The hydraulic rod and the controller are electrically connected and arranged in the machinery space. The hydraulic rod is horizontally arranged along the axial direction. The positioning ring is sleeved with a main shaft of the wind power generator and connected with the hydraulic rod and one end of the support rod. The other end of the support rod is connected with the blade main body. The anemograph and the wheel hub are electrically connected with the controller. The retractable wind power generator blade can automatically regulate the blade main body according to magnitude of the incoming flow wind speed, and enable the blade main body to strut or retract like an umbrella, so as to control retracting degree of the blade main body, and thereby expanding application range of economic wind speed of the wind power generator, and thereby improving stability of an output voltage of the wind power generator, meanwhile, reducing capability of bearing external interference of the blade main body, and improving stability of rotation of the blade main body.

Description

technical field [0001] The invention belongs to the technical field of wind power generation equipment, and in particular relates to a retractable wind power generator blade. Background technique [0002] With the depletion of fossil energy, the search for alternative energy has become the top priority of the work related to the energy field in all countries in the world. Wind energy is a clean and renewable energy. It has developed rapidly in my country in the past ten years, and its proportion in the energy structure is getting higher and higher. However, a big limitation of using wind energy is the narrow economic wind speed range. Generally speaking, the wind speed of 3-20 (m / s) is the economical wind speed that current wind turbines can adapt to. The start-up wind speed of the wind turbine is 3-4 (m / s), and the cut-out wind speed (shutdown wind speed) is about 25 (m / s). When the wind speed is lower than the starting wind speed, the wind turbine cannot generate electr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D1/06
CPCY02E10/721Y02E10/72
Inventor 吴东垠蒙佳朱毅莹邹洋赵若焱曹慎腾
Owner 云南滇能智慧能源有限公司
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