Vertical axis wind turbine for delay control of blade stall
A technology of delay control and blade stall, which is applied to wind turbines, wind turbines, and wind turbine components that are at right angles to the wind direction. Delay and other problems, to achieve the effect of obvious power output, good torque output, and increased power output
Inactive Publication Date: 2013-11-13
HOHAI UNIV CHANGZHOU
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Problems solved by technology
At the same time, the output torque at the tip of the blade is low, and there is a delay phenomenon, so its
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[0027] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0028] Design the basic technical parameters of the vertical axis wind turbine according to the rated power requirements, including blade size, rotor radius, airfoil type, tower height, etc. Wherein, the blade 5 number can be 3~5, is designed as 4 in the present embodiment, see figure 2 .
[0029] Place the turbine aspirator on the top of the main shaft 10 of the wind turbine tower, see figure 1 , figure 2 and Figure 4 . The turbo aspirator consists of a bladed turbine 1 and a lower connected planetary gear. The outer side of the planetary gear outer ring gear 3 is connected with the support rod 6 of the wind turbine, the rotating shaft of the star wheel 2 is fixed, and the sun gear 4 is fixedly connected with the turbine 1 . Adjust the diameter of the outer ring gear 3 with sun gear 4 diameter The ratio is about The diameter of the...
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The invention discloses a vertical axis wind turbine for delay control of blade stall comprising blades and supporting rods for supporting the blades, wherein the top end of a tower of a vertical axis wind turbine is provided with a turbine getter device, the bottom of the turbine getter device is connected with a sun wheel of a planetary gear, the rotating shaft of a star wheel of the planetary gear is fixed, an outer tooth ring meshed with the star wheel is fixedly connected with the supporting rods, through gas-guide tubes are arranged in the supporting rods and the blades, the gas-guide tubes in the supporting rods run through the internal space of the outer tooth ring, and the gas-guide tubes in the blades are connected with spray tubes on the outer side face of the blades in a communicated manner. When the blades rotate, the turbine getter device is driven to rotate at high speed to suck air, the air flow is transmitted into the spray tubes on the outer side of the blades by the gas-guide tubes arranged in the supporting rods, and under the action of centrifugal force, the air flow is thrown away along the surfaces of the blades; and under the action of the sprayed air flow, laminar separation of the blades is delayed, the airfoil shape lift force is increased, and further under the same working condition, the power output of the wind turbine is increased.
Description
[0001] technical field [0002] The invention relates to the field of wind power generation, specifically installing a turbine air suction device on the top of the vertical axis wind turbine tower, the device generates power from the rotation of the impeller, the suction air is introduced into the support rod, and is ejected from the nozzle on the surface of the blade under the action of centrifugal force, and the auxiliary airflow is improved. The laminar flow state on the surface of the blade increases the lift force of the blade, thereby increasing the output power of the wind turbine. Background technique [0003] Vertical axis wind turbines are traditionally considered to have low wind energy utilization and are not taken seriously. However, in recent years, because of its many advantages, the market competitiveness has been continuously enhanced. [0004] Compared with horizontal axis wind turbines (HAWT), vertical axis wind turbines (VAWT) have obvious advantages....
Claims
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Login to View More IPC IPC(8): F03D3/00F03D11/00
CPCY02E10/74
Inventor 潘盼蔡新朱杰顾荣蓉舒超张灵熙崔朕铭李岩郭兴文江泉
Owner HOHAI UNIV CHANGZHOU