Free-running blade mean-pole wind-power generator of contraction and enlargement nozzle

A wind power generation device and a technology for scaling nozzles, which are applied to wind turbine components, wind energy power generation, wind turbines, etc., can solve problems such as the inability to guarantee the optimal working conditions of wind turbine blades, and improve wind energy utilization and high efficiency. , the effect of high power

Inactive Publication Date: 2006-03-15
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No matter how to optimize the blade design and adaptive pitch control, it is impossible to guarantee that the blades of this wind turbine are in the optimal working condition at different phase angles

Method used

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  • Free-running blade mean-pole wind-power generator of contraction and enlargement nozzle
  • Free-running blade mean-pole wind-power generator of contraction and enlargement nozzle
  • Free-running blade mean-pole wind-power generator of contraction and enlargement nozzle

Examples

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Embodiment Construction

[0023] Example 1

[0024] In this way, from the design wind speed and pitch circle radius, different α can be obtained 1 The fan speed at the highest ideal efficiency, the geometric angle of the moving blades, etc., the ideal wind energy utilization rate is much higher than the traditional limit of 59.3%. When considering the viscous flow and pressure rise in the rotor blade, β 2 Usually with β 1 No, that is, the moving blades are not purely impulsive.

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Abstract

A dynamic and static blades turbine with dwindled then widened spout comprises tower base, blower fixed on the top of the base and a dynamo drove by the blower. The dynamic blades are coaxially fixed to the laryngeal part of the spout. The inlet and outlet of the spout are in bugle shape. In front of the dynamic blade, install static turbine guide blade. More wind is collected by the enlarged spout inlet then accelerated by the dwindled laryngeal. The additional blade not only changes wind direction but accelerate wind speed. The dynamic blade is an impulse type which generates work in excess of the limits of Betz theory, so maximizing the utility of wind and lowing down the cost.

Description

Technical field: [0001] The invention relates to a wind power generating device, in particular to a scaling type moving and stationary blade turbine stage wind power generating device. technical background [0002] Wind energy is the fastest-growing clean energy among renewable energy sources, and it is also the most promising power generation method for large-scale development and commercialization. During the 10 years from 1993 to 2003, the annual growth rate of wind power generation in the world reached 29.7%. By the end of 2003, the global installed capacity of wind power reached 40.3 million kilowatts, and wind power generation accounted for 0.5% of the world's total electricity. Among them, the total installed capacity in Europe is 28.71 million kilowatts, accounting for 73% of the world's installed wind power capacity. In 2003, the cumulative installed capacity of wind power in Germany reached 14.61 million kilowatts, accounting for more than 1 / 3 of the world's tota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/00F03D1/04F03D1/06F03D11/04F03D11/00F03D9/00F03D9/25F03D80/70
CPCY02E10/728Y02E10/721Y02E10/72
Inventor 黄典贵
Owner SHANGHAI UNIV
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