Strong-blade magnetic suspension large vertical axis wind power system

A wind power system, vertical axis technology, applied to wind turbines, wind turbine combinations, wind turbines and other directions at right angles to the wind direction, can solve the problems of noise that hinder the normal operation of the turbine, easy vibration, large deflection of the blade arm, etc. The effect of high failure rate and high maintenance cost, increased rigidity, structural strength and rigidity

Inactive Publication Date: 2017-07-04
SHANGHAI WIND NEW ENERGY TECH
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  • Application Information

AI Technical Summary

Problems solved by technology

[0009] After the above improvements, there are still shortcomings that need to be further improved. For example, because the blades are very long, the deflection of the blade arms is too large, and the rigidity is insufficient. The blades are prone to vibration in strong winds, which may hinder the normal operation of the turbine or generate huge damage. noise

Method used

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  • Strong-blade magnetic suspension large vertical axis wind power system
  • Strong-blade magnetic suspension large vertical axis wind power system
  • Strong-blade magnetic suspension large vertical axis wind power system

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Embodiment Construction

[0029] The current large-scale mass-produced commercial wind turbines are mainly 2-3MW horizontal axis turbines. Horizontal axis wind turbines usually use thin three-needle epoxy resin or carbon fiber-reinforced airfoil blades. The root end of the blade is fixed on the hub and connected to the main shaft through the hub. Under the action of the wind, the main shaft is driven to rotate to output mechanical energy, and then through the generator And the converter converts mechanical energy into constant frequency and constant voltage electric energy and inputs it into the grid. The three-pin blade adopts the single-end fixed form of the cantilever beam structure. Therefore, the blade has a large structural stress, is easily deformed, has a low structural strength, and is easily damaged by the wind. Therefore, frequent blade breakage accidents occur in strong winds. This is a horizontal axis fan. The most fatal structural weakness. Therefore, when the power is increased to the u...

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Abstract

The invention discloses a large vertical axis wind power system. A turbine is an ultra-large unit with the power being 10 MW stage or above, a main blade is formed by compositing a two-blade dual-arm Darrieus blade body, a Savonius blade body, air balls and the like of a supporting blade, the air balls solve the problem in aerodynamics brake, a permanent magnet direct drive is adopted in an electric generator, a magnetic suspension spring structure without an extra magnet is adopted in the whole shaft system, and the large vertical axis wind power system is a wind turbine generator set which is highest in structural strength, highest in power generation efficiency, best in safety and widest in industrial coverage in the world at present.

Description

technical field [0001] The invention belongs to the technical field of turbine power generation, and specifically proposes a practical high-power composite vertical-axis wind turbine generator system with a super-strength structure. Background technique [0002] A wind turbine (hereinafter also referred to as a wind turbine or fan for short) is a renewable energy power device that converts the kinetic energy of the wind into mechanical energy suitable for the shaft energy of the generator, and then drives the generator to rotate to generate electricity. In the whole process of wind power generation, the capacity of the turbine is the first important one. [0003] In the existing widely used horizontal-axis turbines, industry practice has proved that the increase in the power of a single machine is beneficial to reduce the cost of installed capacity per unit power and the cost of wind power generation. Therefore, the rated power capacity of a single machine continues to incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D3/06F03D3/02F03D9/25F03D15/20F03D80/70F03D7/06
CPCY02E10/74F03D3/062F03D3/005F03D3/02F03D3/061F03D7/0244F05B2240/212F05B2240/213F05B2240/217F05B2240/30
Inventor 於岳亮於宙瑞秋
Owner SHANGHAI WIND NEW ENERGY TECH
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