Integrated wind power variable pitch system

A pitch system and integrated technology, applied in the field of integrated wind power pitch system, can solve the problems of inconvenient carrying, transportation, installation and use, complicated wiring layout of the pitch system, inconvenient use, etc., and achieve simplified wiring layout and simple structure. , the effect of taking up less space

Inactive Publication Date: 2022-04-12
东方电气风电股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drive and motor are independently separated pitch system solution, on the one hand, it will take up a lot of space, causing inconvenience in carrying, transportation and installation; The wiring layout of the paddle system is cumbersome, and there are many fault points, which is extremely inconvenient to use

Method used

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  • Integrated wind power variable pitch system
  • Integrated wind power variable pitch system
  • Integrated wind power variable pitch system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, in the integrated wind power pitch control system of this embodiment, the wind turbine main control unit 1 is electrically connected to the slip ring 2, the slip ring 2 is electrically connected to the rectification and charging module 3, and the rectification and charging module 3 is respectively electrically connected to three drive motor integrated machines 4. The reduction box 5 is connected to the output end of the drive motor integrated machine 4, and the output end of the reduction box 5 is connected to the blade 6 through the pitch bearing; the drive motor integrated machine 4 is integrated with a power module and an AC permanent magnet synchronous motor .

[0031] The rectification and charging module 3 is integrated with an AC / DC module, three DC / DC modules, two switching power supplies, and multiple reactance modules. The AC / DC module rectifies the input three-phase power from the slip ring 2, and the output direct current is conne...

Embodiment 2

[0040] Such as figure 1 As shown, the integrated wind power pitch control system in this embodiment includes a rectification and charging module 3, the wind turbine main control unit 1 is electrically connected to the slip ring 2, the slip ring 2 is electrically connected to the rectification and charging module 3, and the rectification and charging modules 3 are respectively electrically connected to There are three drive motor integrated machines 4, the reduction box 5 is connected to the output end of the drive motor integrated machine 4, and the output end of the reduction box 5 is connected to the blade 6 through the pitch bearing; the drive motor integrated machine 4 is integrated with a power module and AC permanent magnet synchronous motors.

[0041] The rectification and charging module 3 is integrated with an AC / DC module, three DC / DC modules, two switching power supplies, and multiple reactance modules. The AC / DC module rectifies the input three-phase power from th...

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PUM

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Abstract

The invention belongs to the technical field of wind power generation variable pitch control, and particularly relates to an integrated wind power variable pitch system. According to the technical scheme, the integrated wind power variable pitch system is characterized by comprising a draught fan main control unit, the draught fan main control unit is electrically connected with a sliding ring, the sliding ring is electrically connected with a rectification charging module, the rectification charging module is electrically connected with a plurality of driving motor all-in-one machines, and the output ends of the driving motor all-in-one machines are connected with reduction gearboxes; the output end of the reduction gearbox is connected with a paddle through a variable-pitch bearing; a power module and an alternating current permanent magnet synchronous motor are integrated in the driving motor all-in-one machine. The integrated wind power variable pitch system provided by the invention is simple in wiring.

Description

technical field [0001] The invention belongs to the technical field of wind power generation pitch control, and in particular relates to an integrated wind power pitch control system. Background technique [0002] The pitch system is one of the core control systems of wind turbines, and its safety and reliability are directly related to the safety and reliability of the entire wind turbine. The main functions of the pitch control system are as follows: On the one hand, in the normal state of the unit, the pitch angle of the blades of the wind turbine is adjusted according to the target position of the main control system of the wind turbine, and the angle of attack of the airflow on the blades is changed, so that the output power of the wind turbine can be adjusted according to The wind speed is automatically adjusted to ensure the highest output power of the wind turbine and the output is within the rated power; on the other hand, it can complete emergency propeller retract...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00
CPCY02E10/72
Inventor 李博刘红丹刘世洪余业祥肖杰曾钰琳谢夏
Owner 东方电气风电股份有限公司
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