Yaw control equipment and method of wind generating set

A technology of wind turbine and yaw control, which is applied to the control of wind turbines, wind turbines, and wind power generation. Different control strategies and other issues to achieve the effect of increasing effective power generation, reducing operation and maintenance costs, and prolonging service life

Pending Publication Date: 2022-04-01
XINJIANG GOLDWIND SCI & TECH
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Problems solved by technology

[0003] However, such a yaw control strategy does not fully take into account the different working conditions of the wind turbine, the distribution of the wind direction at different wind speeds, and the different output and control strategies of the wind turbine at different wind speeds.

Method used

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  • Yaw control equipment and method of wind generating set
  • Yaw control equipment and method of wind generating set
  • Yaw control equipment and method of wind generating set

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Embodiment Construction

[0038] In the actual operation of wind turbines, the wind direction changes differently under different terrain conditions, as well as in different sectors and different wind speeds. Under certain terrain conditions, wind direction changes can be very frequent. If the wind speed is much higher than the rated wind speed at this time, if the yaw system yaws frequently, it may cause the yaw motor to overload and cause the wind turbine to fail. Moreover, the wind turbine is in constant power control mode after full power, and the yaw After facing the wind, it cannot bring additional energy to the wind turbine. In addition, when the wind speed is small (for example, the wind speed is much lower than the rated wind speed), generally speaking, the wind direction changes frequently, and the output of the wind turbine itself is relatively small. If the wind turbine yaws frequently at this time, the wind turbine yaws The additional wind energy obtained after facing the wind may be lowe...

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Abstract

The invention provides yaw control equipment and method of a wind generating set. The yaw control equipment comprises a prediction module which is configured to predict current and future feasible yaw action sequences of the wind generating set and predict generating capacity and power consumption generated when the wind generating set executes the feasible yaw action sequences under current and future environmental wind information; the optimal yaw action sequence selection module is configured to select an optimal yaw action sequence from the feasible yaw action sequences by utilizing a model prediction control algorithm according to the generating capacity and the power consumption; and the yaw control strategy determination module is configured to determine a yaw control strategy of the wind generating set based on the optimal yaw action sequence.

Description

technical field [0001] The present disclosure relates to the technical field of wind power generation, and in particular to a yaw control device and method for a wind power generating set. Background technique [0002] The unit yaw control system is composed of yaw motor, yaw reducer, yaw bearing and corresponding sensors (such as wind vane, nacelle position sensor), etc., and is rigidly connected with the nacelle and impeller through the yaw bearing. Usually, after detecting the deviation angle between the wind direction and the position of the nacelle, the control system of the traditional wind turbine sends a control command, starts the yaw motor, and drives the nacelle to yaw in a certain direction through the yaw motor. Make the wind turbine in the wind-facing state to absorb wind energy as much as possible. [0003] However, such a yaw control strategy does not fully take into account the different working conditions of the wind turbine, the distribution of the wind d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04
CPCY02E10/72
Inventor 薛达
Owner XINJIANG GOLDWIND SCI & TECH
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