Annular wind power permanent magnetic direct-driven generator

A technology of permanent magnet direct drive and generator, which is applied in the direction of wind power engine, wind power motor combination, wind power generation, etc.

Inactive Publication Date: 2015-06-17
肖艳义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small size of the wind rotor and the nacelle, the generator is large in size, making the connection between them difficult and limiting the further improvement of power

Method used

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  • Annular wind power permanent magnetic direct-driven generator
  • Annular wind power permanent magnetic direct-driven generator
  • Annular wind power permanent magnetic direct-driven generator

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Embodiment Construction

[0035] Such as Figure 1 to Figure 3 As shown, the present invention discloses an annular wind-driven permanent magnet direct-drive generator, including a tower 10 , a base, blades 20 , a stator 30 , a rotor 40 , an elbow 50 , a yaw bearing 60 and a fairing 70 .

[0036] The tower 10 is installed on a foundation (not shown in the figure).

[0037] The blades 20 are directly installed on the rotor 40, eliminating the need for a wind wheel link.

[0038] There are many specific structures of the rotor 40 . The rotor 40 of this embodiment is composed of a rotor drum 41 and a permanent magnet 42 . The rotor drum 41 is cast and processed by nodular cast iron, the rotor drum 41 is cylindrical, and the permanent magnet 42 is installed inside the rotor drum 41 . In order to facilitate the assembly of the blades 20, in this embodiment, two to three hollow seats 44 are directly formed by casting on the outside of the rotor drum 41 for installing the blades 20, and the roots of the bl...

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PUM

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Abstract

The invention discloses an annular wind power permanent magnetic direct-driven generator, which comprises a tower barrel, a pedestal, blades, a stator, a rotor, a bent pipe, a yawing bearing and a rectifying cover, wherein the blades are directly arranged on the rotor; the stator is connected with the bent pipe through a spoke; the bent pipe is arranged on the tower barrel through the yawing bearing; and the tower barrel is arranged on the pedestal. According to the generator, a wind wheel link and a cabin part are saved; the bent pipe is connected with the stator by adopting the spoke, so that air flow is facilitated, and the resistance of wind is reduced; and the single unit capacity of the permanent magnetic direct-driven generator unit can be easily improved, the cost of the unit is reduced, and quick development of the offshore wind power generation technology is promoted.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a large-scale offshore wind power generating set, in particular to an annular wind-force permanent magnet direct drive generator. Background technique [0002] At present, wind power generation technology is developing in the direction of large-scale permanent magnet direct drive. The mainstream technologies of 2MW, 2.5MW, 3MW, and 5MW have also appeared, and even a 10MW technical solution has been proposed. However, due to the low speed of the wind rotor (about 18rpm) in the permanent magnet direct drive scheme, a large air gap diameter must be required to increase the power to a large capacity. For example, someone estimates that when the power is increased to 10MW, the air gap diameter will reach As a result, the volume of the generator is particularly large, which brings great difficulties to manufacture, installation, operation and maintenance. [0003] The existing pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/00F03D1/00F03D9/25
CPCY02E10/72Y02P70/50
Inventor 肖艳义
Owner 肖艳义
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