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Typhoon-resisting yaw control method for wind generating set

A wind turbine and yaw control technology, which is applied in the control of wind turbines, wind turbines, wind power generation, etc., can solve problems that have not been considered, and achieve the effects of good versatility, reduced threats, and low cost

Inactive Publication Date: 2017-05-17
CORONA WIND EQUIP BEIJING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, this invention does not take into account the control of the yaw system failure of the unit when the power grid is not cut off during the typhoon

Method used

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  • Typhoon-resisting yaw control method for wind generating set
  • Typhoon-resisting yaw control method for wind generating set
  • Typhoon-resisting yaw control method for wind generating set

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0014] The anti-typhoon yaw control method of the present invention is realized by the following equipment of the wind power generating set: at least one controller with logic operation function, UPS and DC battery pack, yaw motor, anemometer, wind vane, yaw brake, etc. The controller is used to realize unit state judgment and control command output; the yaw motor is used to execute the yaw command; the anemometer is only used to measure the current wind speed; the wind vane is used to judge the current wind direction. When the power grid is powered, the yaw system is normal and the wind vane sensor is normal, the controller controls the yaw motor to adjust the relative position of the nacelle and the wind direction in real time according to the current wind direction state. The yaw brake is used to hold the brake tightly when yawing actively and the cabin is in the leeward position, and release the brake when yawing passively to maintain a free yaw state.

[0015] The control...

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Abstract

The invention discloses a typhoon-resisting yaw control method for a wind generating set. When a power grid is in a normal condition, if a yaw system of the wind generating set is normal and a wind indicator is normal, the wind generating set initially enters the leeward state; if the yaw system fails or the wind indicator fails, a brake of the yaw system is opened, and the wind generating set is in the free yaw state; and in the situation of outage of the power grid, a UPS and a storage battery supply power, the brake of the yaw system is opened, and the wind generating set is in the free yaw state.

Description

technical field [0001] The invention relates to a yaw control method of a wind power generating set. Background technique [0002] Recently, with the exhaustion of land wind resources and the development of coastal and offshore wind resources, more and more megawatt-level wind turbines, especially mainstream wind turbines above 2MW, are installed on coasts and seas. The coast and the sea are areas where typhoons frequently occur. The harm of typhoons to the unit includes two aspects. One is that the wind speed exceeds the design limit, causing damage to the structural components of the unit, including broken blades, collapse of the tower, and overturning of the fan. When the typhoon comes, the high-pressure There will be power outages or artificial power outages in the transmission network, which will cause the unit to be in a power-off state, the yaw system cannot work, and the unit will be subjected to a huge external force impact, which is a great test for the structural ...

Claims

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Application Information

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IPC IPC(8): F03D7/00
CPCF03D7/00Y02E10/72
Inventor 姜兴广冯成张雷苏晓东林资旭李海东许洪华
Owner CORONA WIND EQUIP BEIJING CO LTD
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