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A stepped Magnus type wind blade and wind turbine

A technology for wind turbines and blades, which is applied to wind turbines, wind turbines, and control of wind turbines that are consistent with the wind direction, can solve problems such as low power generation efficiency, and achieve the effect of simplifying the structure, improving the efficiency of the unit, and meeting the strength requirements.

Inactive Publication Date: 2018-01-02
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a new type of wind blade and wind turbine, the purpose of which is to improve the working efficiency of the blade and the output power of the wind turbine, thereby solving the technical problem of low power generation efficiency

Method used

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  • A stepped Magnus type wind blade and wind turbine
  • A stepped Magnus type wind blade and wind turbine
  • A stepped Magnus type wind blade and wind turbine

Examples

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Embodiment

[0027] Such as figure 1 As shown, the Magnus-type wind turbine with stepped self-rotating cylindrical blades includes power generation device (1), hub (2), blades (3), tower (5), foundation (6) and other related facility. The wind wheel consists of blades (3) and a hub (2). The blades (3) have an aerodynamic shape, generate torque to drive the wind wheel to rotate under the action of the airflow, and input the torque to the power generation device (1) through the hub (2). The power generating device (1) converts mechanical energy into kinetic energy and transmits it to the grid. For the convenience of reinforcement, the foundation (6) is square in shape. The tower (5) is connected with the foundation (6), supports the wind power generation system in the air, bears various loads caused by the operation of the wind power generation system, and transmits these loads to the foundation at the same time, so that the whole wind power unit can operate stably and reliably.

[0028]...

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Abstract

The invention discloses a stepped Magnus-type wind blade and a wind turbine. The blade is a stepped cylinder and is divided into several cylindrical sections. The diameter of each section of the cylinder becomes smaller step by step from the root of the blade to the end of the blade; the cylindrical section includes a cylindrical Shaped internal gear, the inner cavity of which is equipped with a planetary gear device. Using the blade, the present invention proposes a wind turbine, which includes related facilities such as a power generation device, a hub, a planetary gear system, and a tower. The drive motor is installed on the hub, and the cylindrical blade can rotate at a certain speed through helical gear transmission. Different cylindrical blade segments realize differential rotation through the planetary gear system, and the rotation angular velocity of the cylindrical blades is changed by adjusting the planetary gear to ensure the maximum power output of the wind turbine. The invention has the advantages of simple structure, low processing cost, strong reliability and high efficiency utilization of wind energy to generate electricity.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and more specifically relates to a Magnus-type wind blade and a wind turbine. Background technique [0002] Renewable energy is the best way to solve the energy crisis, and wind power is the industry with the fastest development, the most mature technology and the broadest prospect in the renewable energy industry. With the continuous progress of science and technology, the economy of wind power has been continuously improved. In addition, my country has taken renewable energy as an important part of my country's energy strategy, and wind power has a huge potential market. [0003] Wind turbine blades are the core components of wind turbines and are directly related to the efficiency of wind power utilization. Most of the blades of modern wind turbines are traditional airfoil blades, which are designed based on the condition of uniform and stable incoming wind speed, without consid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D1/06F03D3/06F03D7/02F03D7/06
CPCF03D1/0641F03D1/0658F03D1/0691F03D3/007F03D3/061F03D3/064F03D3/068F03D7/028F03D7/06F05B2240/201F05B2240/211F05B2240/221F03D1/0601Y02E10/74Y02E10/72
Inventor 鲁录义王坤刘雪晴
Owner HUAZHONG UNIV OF SCI & TECH
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