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Wind power generation excitation control method and serial double-rotor generator

A technology of excitation control and generator, which is applied in the direction of control of generators, control of generators through magnetic field changes, control of wind turbines, etc., can solve the problems of poor working conditions and environment of wind turbine units, low unit efficiency, and high maintenance costs. Achieve the effects of improving operating efficiency and reliability, reducing control system costs, and improving wind energy utilization

Inactive Publication Date: 2007-07-18
天津市博思特电磁线有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] It is known that wind turbines transmit the power generated by the wind wheel under the action of wind to the generator through the gearbox and make it obtain a corresponding speed; usually the speed of the wind wheel is very low, far below the requirements for high-speed generator power generation The speed must be realized through the acceleration of the gear pair of the gearbox; and the working conditions of the wind turbine unit are generally very poor, and frequent failures of the gearbox are common.
[0005] Products manufactured by known technologies have poor reliability, high maintenance costs, and low unit efficiency

Method used

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  • Wind power generation excitation control method and serial double-rotor generator
  • Wind power generation excitation control method and serial double-rotor generator
  • Wind power generation excitation control method and serial double-rotor generator

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Embodiment Construction

[0041] The specific implementation, structure, features and effects provided by the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0042] As shown in Figures 1-4, a series double-rotor generator, the wind generator has a generator body 1 fixed on the base 10, the generator stator 16 is fixed in the motor casing 111, and the generator rotor 14 The main drive shaft 13 is set in a configuration that rotates relative to the stator 16, wherein,

[0043] The exciter 4 is coaxially installed in the casing through the main transmission shaft and the main body of the generator; the permanent magnet 43 is installed on the yoke 42 in the permanent magnet outer rotor housing 410 to form the permanent magnet outer rotor 41 of the exciter. The permanent magnet outer rotor is set in a structure that is relatively rotating with the exciter inner rotor 45 through the connecting piece 46; the permanent magnets 43 ar...

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Abstract

This invention relates to an excitatioin control method for wind generation and a serial double rotor generator, in which, a main vane is set on the generator rotating in the speed of Nzr corresponding to a stator, a sub-vane drives a magnet outer rotor rotates reversely to the main vane in the speed of Ne, large vane is set for generation and small vane for adjusting the excitation frequency and generating to increase the usability of wind energy, besides, this invention applies a double rotor structure of brushless double feeding rotor and a rotation magnet outer rotor to realize rev constant and excitating operation of the set.

Description

technical field [0001] The invention relates to a wind power generator, in particular to a variable-speed constant-frequency excitation control method for a wind power generator set with a double-rotor motor and a brushless double-fed wind power generator with a double-rotor series structure. Background technique [0002] Known technology such as Chinese patent CN200510022771.1 discloses a variable-speed constant-frequency method for wind power generation, which is characterized in that first, the speed of the wind turbine rotor is increased through the speed-increasing gearbox, and then the input power generated by the variable speed is input into the differential The input shaft of the permanent magnet motor is divided or merged by the differential mechanism of the differential permanent magnet motor to generate power flow into the stator winding of the differential permanent magnet motor through the feeder to realize constant speed and constant frequency power generation t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/04H02P9/14H02H3/38F03D7/00H02K19/38H02K21/00H02K7/18F03D9/00F03D9/25
CPCY02E10/723Y02E10/725Y02E10/72
Inventor 王华君
Owner 天津市博思特电磁线有限公司
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