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Passive type constant-speed transmission control system and constant-speed control method for wind generating set

A technology of wind turbines and constant-speed transmission, which is applied in the control of wind turbines, wind turbines, and wind power generation, etc., and can solve the problems of unstable frequency of output electric energy and so on.

Inactive Publication Date: 2021-09-14
ZHEJIANG NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a passive constant-speed transmission control system and constant-speed control method for wind power generators, so as to solve the problem of unstable frequency of output electric energy existing in wind power generators in the prior art when the wind speed changes

Method used

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  • Passive type constant-speed transmission control system and constant-speed control method for wind generating set
  • Passive type constant-speed transmission control system and constant-speed control method for wind generating set
  • Passive type constant-speed transmission control system and constant-speed control method for wind generating set

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Such as figure 1 , figure 2 As shown, the passive constant speed transmission control system of the wind power generating set of the present invention is composed of a planetary gear train and an electronic control system, wherein the planetary gear train consists of a sun gear 4, a planetary gear 5, a planetary carrier 6, and a ring gear 7 according to the traditional planetary gear system. The wheel train structure is assembled. In the planetary gear system, the sun gear 4, the planet carrier 6, and the ring gear 7 all rotate around their own central axis, and the planetary gear 5 can not only rotate around its own central axis, but also revolve around the sun gear 4. to the movement. In addition to the gears required for the planetary gear train, the ring gear 7 also has an outer peripheral surface of the ring gear 7 as a gear surface.

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Abstract

The invention discloses a passive type constant-speed transmission control system for a wind generating set. The system comprises a planetary gear train, a control gear, a power source and a controller, wherein a planet carrier and a sun gear of the planetary gear train are fixedly connected with a wind wheel shaft and a generator main shaft of the wind generating set, the control gear meshes with a gear face on the outer circumference of a gear ring of the planetary gear train, and the controller controls a rotating speed of the control gear through the power source. The invention further discloses a constant-speed control method for the wind generating set. The controller controls the rotating speed of the control gear through the power source, then a rotating speed of the gear ring is controlled, and a rotating speed of the generator main shaft of the wind generating set is kept constant to be a set target value. The mechanical structure of the wind generating set is simplified, a stable output result can be obtained when external conditions change, and wind energy is better utilized for power generation.

Description

technical field [0001] The invention relates to the field of constant speed control systems of wind power generators, in particular to a passive constant speed transmission control system and constant speed control method of wind power generators. Background technique [0002] When the wind turbine generates electricity, the wind drives the impeller to rotate to form a mechanical torque, and then through the main shaft transmission chain, through the gearbox, the speed is increased to the speed required by the main shaft of the asynchronous generator, and the generator generates power, thereby converting the wind energy into electrical energy. The commonly used gear box has a constant speed ratio, so when the wind speed changes, the speed of the impeller will change, causing the speed of the main shaft of the generator to change after the gear box speeds up, and then the frequency of the electric energy generated by the generator will fluctuate , resulting in the reduction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/70F03D15/10F03D7/04
CPCF16H3/70F03D15/10F03D7/041F16H2200/2005Y02E10/72
Inventor 赵迎生邵金均刘智强卢国东王利利
Owner ZHEJIANG NORMAL UNIVERSITY
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