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Yawing sector management and optimized control system and method for wind generating set

A wind power generation unit, optimized control technology, applied in the control of wind power generators, wind power generators, wind power generation, etc., can solve the problem of low utilization rate of wind energy in wind turbines

Active Publication Date: 2012-01-04
GUODIAN UNITED POWER TECH
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AI Technical Summary

Problems solved by technology

If the same control curve is used for sea wind and land wind during the operation of the wind turbine, the wind energy utilization rate of the wind turbine will be low

Method used

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  • Yawing sector management and optimized control system and method for wind generating set
  • Yawing sector management and optimized control system and method for wind generating set
  • Yawing sector management and optimized control system and method for wind generating set

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Embodiment Construction

[0019] see figure 1 As shown, the yaw sector management and optimization control system of the wind power generating set of the present invention includes a yaw sector position detection module, a control mode switching module and a sector control strategy module.

[0020] Among them, the yaw sector position detection module mainly measures the current position of the nacelle through the sensor, and judges whether to enter a specific sector, which provides a basis for the control mode switching module. The sensor is preferably an absolute value type rotary encoder, which can be separately arranged on the yaw bearing, or the sensor of the existing yaw system can be used to process the measurement signal of the existing yaw system to determine the absolute position of the current nacelle.

[0021] The sector control strategy module stores the specific control algorithms of each sector, mainly the pitch control algorithm and generator electromagnetic torque control algorithm form...

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Abstract

The invention relates to a yawing sector management and optimized control system and a yawing sector management and optimized control method for a wind generating set. The system comprises a yawing sector position detection module, a section control strategy module and a control mode switching module. The method comprises the following steps of: dividing all space swept by the yawing of the wind generating set into sectors; designing running and control algorithms according to wind energy characteristics of the sectors; detecting the current wind facing position of an impeller of a wind turbine in real time and determining a sector which the wind turbine enters currently; and switching to a corresponding running and control algorithm according to the entered sector, and outputting a control signal for control according to a result. The invention is applied to modern horizontal axis wind generating sets, and can improve the running conditions of sets in wind fields with complicated topographic conditions, reduce running load, optimize the control effect of wind turbines in wind fields in intertidal zones, and improve the wind energy utilization efficiency.

Description

technical field [0001] The invention relates to a yaw sector management and optimization control system and method for a wind power generating set. Background technique [0002] Modern horizontal axis wind turbines are usually upwind wind turbines. If the wind direction changes, the swept surface of the impeller is not perpendicular to the wind direction, not only the power output will be reduced, but also the load will be more severe. Therefore, an active yaw system is required to track the wind direction and drive The nacelle rotates around the centerline of the tower, so that the swept surface of the impeller is perpendicular to the wind direction, reducing the operating load and obtaining the maximum kinetic energy. [0003] With the development of the wind power industry, more and more wind farms are built in areas with complex terrain conditions or intertidal zones. In areas with complex terrain, the airflow will have great changes in wind speed and direction due to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/02
CPCY02E10/723Y02E10/72
Inventor 王建明纪国瑞潘磊秦明孙黎翔
Owner GUODIAN UNITED POWER TECH
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