Adjusting method and system for generating power of wind generation set, medium and electronic equipment

A technology for generating power and wind turbines, which is applied in the direction of wind power generation, mechanical equipment, and wind engine control. It can solve problems such as the inability to adjust the power generation of wind turbines in time and the generation of wind turbines exceeding the limit, so as to reduce the risk of shutdown and improve power generation. The effect of reducing power generation

Inactive Publication Date: 2020-07-28
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the power generation power of the wind turbine unit cannot be adjusted in time through the pitch control system when the wind speed changes rapidly, so that the wind turbine unit is prone to generating overruns, and provides a wind turbine generator Method, system, medium and electronic equipment for adjusting power generation

Method used

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  • Adjusting method and system for generating power of wind generation set, medium and electronic equipment
  • Adjusting method and system for generating power of wind generation set, medium and electronic equipment
  • Adjusting method and system for generating power of wind generation set, medium and electronic equipment

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Embodiment 1

[0069] This embodiment provides a method for adjusting the generated power of a wind turbine. The wind turbine may include a wind turbine, a gearbox, a generator, a converter, and a controller.

[0070] Such as figure 1 As shown, the adjustment method may include:

[0071] Step S10: Obtain the current wind speed;

[0072] Step S11: Calculate the current turbulence intensity according to the current wind speed;

[0073] The turbulence intensity describes the degree of wind speed changes with time and space, can reflect the relative intensity of pulsating wind speed, and is the most important characteristic quantity to describe the movement characteristics of atmospheric turbulence. There are two main reasons for turbulence. One is that when the air flows, the airflow will be friction or blocked by the roughness of the ground, and the other reason is the vertical movement of the airflow caused by the difference in air density and atmospheric temperature.

[0074] The calculation method o...

Embodiment 2

[0090] This embodiment provides a method for adjusting the generated power of a wind turbine, which is a further improvement on the basis of embodiment 1, such as figure 2 As shown,

[0091] The step S12 may specifically include:

[0092] Step S121: Obtain the current rotation speed of the wind turbine generator and the current electromagnetic torque corresponding to the current rotation speed;

[0093] Step S122: Refer to a preset power boundary curve to determine whether the current electromagnetic torque exceeds a torque limit, where the torque limit is indicated by the power boundary curve, and when the generated power does not exceed the preset When the power threshold is set, the maximum electromagnetic torque value corresponding to the current speed;

[0094] Step S123: If the torque limit is exceeded, it is determined that the current generated power exceeds a preset power threshold;

[0095] In addition, if the torque limit is not exceeded, it is determined that the current g...

Embodiment 3

[0103] This embodiment provides a system for adjusting the generated power of a wind turbine, such as Figure 4 As shown, the adjustment system 1 includes:

[0104] The wind speed obtaining module 11 is used to obtain the current wind speed;

[0105] The turbulence intensity calculation module 12 is configured to calculate the current turbulence intensity according to the current wind speed;

[0106] The detection module 13 is configured to detect whether the current generation power of the wind turbine generator exceeds a preset power threshold when the current turbulence intensity exceeds a preset critical turbulence intensity;

[0107] The adjustment module 14 is configured to reduce the generated power by reducing the electromagnetic torque of the wind turbine when the current generated power exceeds a preset power threshold.

[0108] The turbulence intensity describes the degree of wind speed changes with time and space, can reflect the relative intensity of pulsating wind speed, a...

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Abstract

The invention discloses an adjusting method and system for generating power of a wind generation set, a medium and electronic equipment. The adjusting method comprises steps as follows: acquiring thecurrent wind speed; calculating current turbulence intensity according to the current wind speed; detecting current generating power of the wind generation set exceeds a preset power threshold value or not if the current turbulence intensity exceeds preset critical turbulence intensity; and reducing the generating power by reducing electromagnetic torque of the wind generation set if the current generating power of the wind generation set exceeds the preset power threshold value. When the wind speed changes rapidly, the generating power of the wind generation set is reduced by reducing the torque, so that the shutdown risk of the wind generation set due to the fact that the generating power exceeds the limit is greatly reduced, and the generating capacity is effectively improved.

Description

Technical field [0001] The invention relates to the field of wind power generation, and in particular to a method, system, medium and electronic equipment for adjusting the power generation of a wind turbine. Background technique [0002] As a kind of clean energy, wind energy is very attractive today when resources are scarce and environmental problems are increasingly prominent. The use of wind power technology to replace traditional coal and oil-fired thermal power is the development trend of the power industry. Wind power generation is clean and has good environmental benefits; wind energy is renewable and never exhausted; infrastructure construction period is short; installed capacity is flexible, and operation and maintenance costs are low. [0003] Although wind power generation has many advantages, wind turbines are usually built in mountainous or plateau areas with more complex environmental factors, resulting in poor operating conditions and susceptibility to large turbul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00
CPCF03D7/00F05B2270/1032F05B2270/1033F05B2270/304F05B2270/32F05B2270/335Y02E10/72
Inventor 张天明安少朋徐志伟蒋勇黄雄哲王建琴
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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