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Hybrid-excited brushless DC wind power generator

A technology of wind power generators and hybrid excitation, which is applied to synchronous motors with stationary armatures and rotating magnets, electrical components, electromechanical devices, etc., and can solve the problem that brushless DC generators cannot be used for wind power generation due to excitation or excitation current. and other problems to achieve the effect of overcoming inconvenient maintenance, reducing loss and improving power reserve

Inactive Publication Date: 2012-10-03
程开业
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention solves the problem that the existing brushless DC generator cannot be applied to wind power generation due to defects in the excitation or the structure providing the excitation current, and provides a hybrid excitation brushless DC wind generator

Method used

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  • Hybrid-excited brushless DC wind power generator
  • Hybrid-excited brushless DC wind power generator
  • Hybrid-excited brushless DC wind power generator

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The hybrid excitation brushless DC wind power generator includes a stator 1 and a DC motor armature winding on the stator, a rotating shaft 2, a main excitation permanent magnetic pole 3 arranged on the rotating shaft 2, and a rectifying device connected to the DC motor armature winding on the stator; 2 is also provided with the auxiliary excitation magnetic pole 4 with the same number of magnetic poles and the installation phase of the magnetic poles as the main excitation permanent magnetic pole 3 (that is, the magnetic pole position is the same after the relative position of the magnetic poles is determined), and also includes an excitation current supply device for the auxiliary excitation magnetic pole. The excitation current supply device for the auxiliary excitation magnetic pole includes a ring-shaped DC exciter 5 and is arranged on the stator or outside the stator, and the polarity and magnitude of the DC voltage output by it are different from the excitation pol...

Embodiment 2

[0039] The hybrid excitation brushless DC wind power generator includes a stator 1 and a DC motor armature winding on the stator, a rotating shaft 2, a main excitation permanent magnetic pole 3 arranged on the rotating shaft, and a rectifying device connected to the DC motor armature winding on the stator; the rotating shaft 2 There is also an auxiliary excitation magnetic pole 4 which has the same number of magnetic poles and the installation phase of the magnetic poles as the main excitation permanent magnetic pole 3 (that is, the magnetic pole position is the same after the relative position of the magnetic poles is determined), and also includes an excitation current supply device for the auxiliary excitation electromagnetic pole. The excitation current supply device for the excitation pole includes a ring-shaped DC exciter 5 and is arranged on or outside the stator. The excitation current supply device 6 of the annular DC exciter that can be adjusted according to the chang...

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Abstract

The invention relates to a wind power generator, in particular to a hybrid-excited brushless DC wind power generator, which solves a problem that a conventional brushless DC generator cannot be suitable for wind power generation due to excitation or reasonable structure for supplying excitation current. The wind power generator comprises a stator, a DC motor armature winding, a rotation shaft, and a main excitation permanent magnet pole and an auxiliary electromagnetic pole both arranged on the rotation shaft, as well as an excitation current supply unit of the auxiliary excitation electromagnetic pole, wherein the excitation current supply unit of the auxiliary excitation electromagnetic pole consists of a ring-shaped DC exciter and an excitation current providing unit of the ring-shaped DC exciter; the ring-shaped DC exciter consists of a ring-shaped rotor and DC excitation regulators both fixed on the rotating shaft; and each DC excitation regulator consists of a U-shaped iron core and an excitation coil wound thereon. The wind power generator is applicable to wind parks with larger area and wind farms where a plurality of wind power generators synchronously operate, and also can be taken as a motor used in high power and multiple variable-speed engineering equipment capable of regulating output moment.

Description

technical field [0001] The invention relates to generators, in particular to wind power generators, in particular to a hybrid excitation brushless DC wind power generator. Background technique [0002] Wind power is one of the most promising forms of renewable energy, which plays an important role in saving energy, protecting the environment and promoting sustainable development. my country is rich in wind energy resources. With the country's increased policy support and policy guidance for the wind power industry, my country's wind power market has developed rapidly in recent years. The wind power generator technology is the key technology of this form of renewable energy, which determines the quality of the wind power generators' power supply to the grid. Therefore, people put a lot of research work on the wind power generator technology. The study of people has changed over generations. [0003] The first generation of wind turbines uses a squirrel-cage asynchronous gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K29/00H02K21/14
Inventor 程开业韩肖清王英马英
Owner 程开业
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