Minimum clearance control system and method, electronic equipment and storage medium
A control method and control system technology, applied in the field of wind power generation, can solve the problems of low accuracy and achieve the effects of high accuracy, guaranteed power generation, and guaranteed safety
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Embodiment 1
[0060] This embodiment provides a method for controlling the minimum headroom of a wind power generating set, figure 1 A flowchart of this embodiment is shown. refer to figure 1 It is understood that the control method includes the following steps:
[0061] S101, using a bending moment sensor to detect the bending moment of the main shaft to obtain a bending moment value;
[0062] S102. Determine whether the bending moment value is greater than the first threshold, if not, set the pitch angle as the target value; if yes, turn on the static thrust reduction function of the wind power generating set.
[0063] Among them, when the pitch angle is the target value, the wind turbine can capture the maximum wind energy.
[0064] In this embodiment, when the wind power generating set is running normally, the value of the bending moment sensor is within the normal range. And when the bending moment value on the main shaft is greater than the first threshold, the static thrust reduc...
Embodiment 2
[0069] On the basis of Embodiment 1, this embodiment provides a method for controlling the minimum headroom of a wind power generating set, figure 2 A flowchart of this embodiment is shown. refer to figure 2 It should be understood that after turning on the static thrust reduction function of the wind power generating set in step S102, the control method further includes the following steps:
[0070] S201. Determine whether the bending moment value is smaller than a second threshold, and if so, turn off the static thrust reduction function.
[0071] In step S201, if the bending moment value is less than the second threshold, it means that the wind shear has returned to the normal range, and the bending moment of the main shaft has also returned to the normal range, and the static thrust reduction function can be turned off at this time.
[0072] In this embodiment, the ratio of the second threshold to the first threshold is 0.9. Wherein, by setting the second threshold, i...
Embodiment 3
[0077] On the basis of Embodiment 2, this embodiment provides a method for controlling the minimum headroom of a wind power generating set, image 3 A flowchart of this embodiment is shown. refer to image 3 It should be understood that before turning on the static thrust reduction function of the wind power generating set in step S102, the control method further includes the following steps:
[0078] S301. Detect whether the power of the input end of the wind power generating set is greater than a third threshold, if yes, enable the static thrust reduction function; if not, set the pitch angle to a target value.
[0079] In this embodiment, only when the bending moment value of the main shaft of the wind power generating set is greater than the first threshold and the power at the input end is greater than the third threshold, the static thrust reduction function will be turned on, thereby reducing the thrust and blade deformation, and ensuring the minimum clearance value ....
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