CN103163325B - A kind of method that wind-force detects, wind-force detector and aerogenerator - Google Patents

Abstract

The present invention provides a wind force detection method, a wind force detector, and a wind power generator, wherein the wind force detection method includes detecting mechanical signals when a detection point on a rotating component is in at least two preset positions; according to the at least two The preset position and its corresponding mechanical signal obtain the wind direction of the wind force. In the above-mentioned embodiments provided by the present invention, by detecting the mechanical signal when the detection point on the rotating component is at least two preset positions, the mechanical signal generated by the wind force carried by the rotating component during the rotation can be directly detected, and the detected The mechanical signal acting on the blade has high precision and small error, and then the wind direction with high precision can be calculated according to the above mechanical signal.

Description

A method of wind power detection, wind power detector and wind power generator

technical field

The invention relates to the technical field of wind power generation, in particular to a wind power detection method, a wind power detector and a wind power generator.

Background technique

As a clean and renewable energy, wind energy has been paid more and more attention by countries all over the world. my country is rich in wind energy resources, and the potential for generating electricity from wind energy is huge.

Today, people usually use wind turbines to convert wind energy into electricity. Fig. 1 is a schematic structural diagram of a wind power generator in the prior art. As shown in FIG. 1 , the wind power generator includes: a blade 101 , a wind deflector 102 , a generator 103 , a nacelle cover 104 , a tower 105 , a tower base 106 and a wind detector 107 . Wind force acts on the blade 101 at a certain angle and speed, causing the blade 101 to generate a rotational moment and rotate, thereby converting wind energy into mechanical energy, and the rotating blade 101 will drive the generator on the tower 104 to generate electricity, realizing the conversion of wind energy into electrical energy.

During the working process of the wind-driven generator, the amount of wind energy captured by the wind-driven generator has a cubic relationship with the wind speed, and the angle between the rotation axis of the wind deflector 102 and the wind direction also affects the efficiency of the wind-driven generator to capture wind energy; when the wind deflector 102 When there is an included angle between the rotation axis of the wind deflector 102 and the wind direction, the efficiency of capturing wind energy by the wind turbine generator will be reduced. The machine produces a large eccentric load, which reduces the service life of the wind turbine. Therefore, accurate acquisition of wind parameters such as wind direction and wind speed is very important for the power generation efficiency and service life of wind turbines.

In the prior art, the anemometer 107 usually includes a wind vane and an anemometer, which are used to detect wind parameters such as wind direction and wind speed. The anemometer 107 is installed on the nacelle cover 104 behind the impeller 101. The wind force detector 107 is only reached after being blocked or disturbed by the wind force detector 107, so the wind force parameters such as wind speed and wind direction all change. Therefore, the wind force parameters such as wind speed and wind direction obtained by the wind force detector 107 have low accuracy and large errors.

Contents of the invention

In order to solve the above problems, the present invention provides a wind force detection method, a wind force detector and a wind power generator, which are used to solve the problems of low accuracy and large error of wind force parameters detected in the prior art.

For this reason, the present invention provides a kind of method of wind power detection, wherein, comprise:

detecting a mechanical signal when a detection point on the rotating component is at least two preset positions;

The wind direction of the wind force is obtained according to the at least two preset positions and the corresponding mechanical signals.

Wherein, the method for wind detection also includes:

The wind speed of the wind force is obtained according to the at least two preset positions and the corresponding mechanical signals.

Wherein, the at least two preset positions include:

first position and second position;

The first position and the second position are respectively the positions where the circle passed by the detection point when it rotates intersects the diameter of the circle in the horizontal direction.

Wherein, the at least two preset positions also include:

third and fourth positions;

The third position and the fourth position are respectively the positions where the circle passed by the detection point when it rotates intersects the diameter of the circle in the vertical direction.

Wherein, the mechanical signal for detecting when the detection point on the rotating component is in at least two preset positions includes:

detecting a position signal of a detection point on the rotating component;

When the detection point on the rotating component is at a preset position, the mechanical signal of the detection point is detected.

Wherein, the detection of the position signal of the detection point on the rotating component includes:

Detecting a position signal of a detection point on the rotating component by an acceleration sensor;

When the acceleration detected by the acceleration sensor is a horizontal preset value, it is identified that the detection point on the rotating component is in the first position and the second position.

Wherein, the mechanical signal of the detection point includes:

At least one of a pressure signal, a tension signal and a pressure signal at the detection point.

Wherein, the rotating component is a wind deflector of the wind power generator.

The present invention also provides a wind force detector, which includes:

The mechanical sensor is used to detect the mechanical signal when the detection point on the rotating part is at least two preset positions;

The signal processor is configured to obtain the wind direction of the wind force according to the at least two preset positions and the corresponding mechanical signals.

Wherein, the signal processor is also used for:

The wind speed of the wind force is obtained according to the at least two preset positions and the corresponding mechanical signals.

Wherein, the mechanical sensor includes:

At least one of a pressure sensor, a tension sensor and a pressure sensor;

The pressure sensor, tension sensor and pressure sensor are respectively used to detect the pressure signal, tension signal and pressure signal of the detection point.

Wherein, the wind detector also includes:

a position sensor, used to detect a position signal of a detection point on the rotating component;

When it is determined based on the position signal detected by the position sensor that the detection point on the rotating component is at a preset position, the force sensor detects the force signal of the detection point.

Wherein, the position sensor includes:

An acceleration sensor, when the acceleration detected by the acceleration sensor is a horizontal preset value, identifies that the detection point on the rotating component is in the first position and the second position;

The first position and the second position are respectively the positions where the circle passed by the detection point when it rotates intersects the diameter of the circle in the horizontal direction.

Wherein, the wind detector also includes:

A frame, the force sensor and the position sensor are mounted on the frame.

Wherein, the frame is a cylinder, and the mechanical sensor includes a pressure sensor and/or a tension sensor;

The force sensor and position sensor are mounted on the surface of the frame.

Wherein, the frame is a cylinder, and the mechanical sensor includes a pressure sensor;

the position sensor is installed on the surface of the frame;

The pressure sensor is installed inside the frame and is in contact with the external airflow through the through hole.

Wherein, the frame includes a cylinder and a flat plate fixedly connected, and the force sensor includes a pressure sensor and/or a tension sensor;

The force sensor and position sensor are mounted on the surface of the frame.

Wherein, the frame includes a cylinder and a flat plate fixedly connected, and the mechanical sensor includes a pressure sensor;

the position sensor is installed on the surface of the frame;

The pressure sensor is installed inside the frame and is in contact with the external airflow through the through hole.

The present invention also provides a wind generator, which includes any one of the above-mentioned wind detectors.

The present invention has following beneficial effect:

The wind force detection method provided by the present invention can directly detect the mechanical signal generated by the wind force carried by the rotating component during the rotation process by detecting the mechanical signal when the detection point on the rotating component is at least two preset positions, and the detected The mechanical signal on the rotating part has high accuracy and small error, and then the wind direction with high accuracy can be calculated according to the above mechanical signal.

The wind force detector provided by the present invention detects the mechanical signals when the detection points on the rotating parts are at least two preset positions through the mechanical sensors, and can directly detect the mechanical signals generated by the wind force carried by the rotating parts during the rotation process, and detects The mechanical signals on the rotating parts have high accuracy and small error, and then the wind direction with high accuracy can be calculated according to the above mechanical signals.

In the wind power generator provided by the present invention, the wind power detector is installed in the upwind direction of the blade to improve the accuracy of the detection of the wind power detector when acting on the wind force parameters of the blade. When the wind power generator adjusts the impeller rotation according to the wind power parameters The rotation axis of the wind turbine is parallel to the wind direction, thereby improving the power generation efficiency of the wind turbine, reducing the partial load of the wind turbine, and prolonging the service life of the wind turbine.

Description of drawings

Fig. 1 is the structural representation of prior art wind power generator;

Fig. 2 is a flow chart of the first embodiment of the method for detecting wind force of the present invention;

Fig. 3 is a flow chart of the second embodiment of the method for detecting wind force of the present invention;

Fig. 4 is a schematic diagram of the motion trajectory of the detection point in the present embodiment;

Fig. 5 is a structural schematic diagram of the first embodiment of the wind force detector of the present invention;

Fig. 6 is a schematic structural view of the second embodiment of the wind force detector of the present invention;

7 is a schematic structural view of the third embodiment of the wind force detector of the present invention;

Fig. 8 is a schematic structural view of the fourth embodiment of the wind force detector of the present invention;

Fig. 9 is the front view of the fourth embodiment of the anemometer of the present invention;

Fig. 10 is a top view of the fourth embodiment of the wind force detector of the present invention;

Fig. 11 is a schematic structural view of the first embodiment of the wind power generator of the present invention;

Fig. 12 is a schematic structural diagram of the second embodiment of the wind power generator of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the technical solution of the present invention, the wind force detection method, wind force detector and wind power generator provided by the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 2 is a flow chart of the first embodiment of the method for detecting wind force of the present invention. As shown in Figure 2, the method for wind detection in this embodiment specifically includes the following steps:

Step 201. Detect mechanical signals when the detection points on the rotating component are in at least two preset positions.

In this step, during the rotation of the rotating component, the detection point on the rotating component is also rotating, and when the detecting point rotates to a preset position, the mechanical signal at the detecting point on the rotating component is detected, wherein the preset position is at least There are two. After detecting the mechanical signals when the detection points on the rotating component are at least two preset positions, go to step 202 .

Step 202. Obtain the wind direction of the wind force according to the at least two preset positions and the corresponding mechanical signals.

In this step, according to the mechanical signals detected when the detection points are in at least two preset positions, the wind direction of the wind force is calculated using the Bernoulli equation, so as to obtain the angle between the rotation axis of the rotating component and the wind direction, using The process of calculating the wind speed by the Bernoulli equation is a prior art, and will not be repeated here.

In practical applications, the rotating component may be a wind deflector on the wind generator or the like.

In this embodiment, by detecting the mechanical signal when the detection point on the rotating component is at least two preset positions, the mechanical signal generated by the wind force carried by the rotating component during the rotation can be directly detected. The mechanical signal on the blade has high precision and small error, and then the wind direction with high precision can be calculated according to the above mechanical signal.

FIG. 3 is a flow chart of the second embodiment of the method for detecting wind force according to the present invention, and FIG. 4 is a schematic diagram of the movement trajectory of the detection points in this embodiment. In this embodiment, a mechanical sensor is installed at the detection point of the rotating part, and the mechanical sensor can detect at least one of the pressure signal, tension signal and pressure signal of the wind force at the detection point; wherein, the acceleration sensor and the mechanical sensor are in The rotating part is driven to rotate synchronously; during the rotation of the rotating part, the position signal of the mechanical sensor at the detection point on the rotating part can be detected by the acceleration sensor, and the connection line between the mechanical sensor and the acceleration sensor intersects with the rotation axis of the rotating part. As shown in Figure 3, the method for wind detection in this embodiment specifically includes the following steps:

Step 301. Detect the position signal of the detection point on the rotating component by the acceleration sensor.

In this step, when the rotating component rotates around the axis of rotation, it drives the position sensor and the force sensor to perform circular motion around the axis of rotation, and the acceleration sensor can detect that the force sensor is at an accurate position on the circle. As shown in Figure 4, two preset positions are set on the circumference of the detection point 400 rotation, including a first position A and a second position B, and the first position A and the second position B are respectively passed through when the detection point rotates. The point where a circle intersects the diameter AB of the circle in the horizontal direction. The acceleration sensor is set to reach the first position A or the second position B, and the acceleration detected by the acceleration sensor is a horizontal preset value, which can be set according to parameters such as the acceleration sensor and the rotational speed of the rotating component.

When the acceleration detected by the acceleration sensor is the horizontal preset value, the marker force sensor reaches the first position A or the second position B on the circumference, and then enters step 302 .

Step 302 , using a force sensor to detect force signals of detection points on at least two preset positions on the rotating component.

In this step, when it is determined based on the position signal detected by the position sensor that the detection point on the rotating component is at a preset position, the mechanical sensor will detect the mechanical signal of the detecting point on the rotating component, including the wind force at the first position A and the second position. After the mechanical signal generated at position B, go to step 303 .

Step 303: Acquire the wind direction of the wind force according to the at least two preset positions and the corresponding mechanical signals.

In this step, the position signal when the detection point on the rotating part is at the preset position is detected by the position sensor, the mechanical signal at the preset position of the detection point on the rotating part is detected by the mechanical sensor, and calculated according to the Bernoulli equation The wind direction of the wind force, so as to obtain the angle between the rotation axis of the rotating part and the wind direction.

In practical applications, the rotating component can be a wind deflector on the wind generator; furthermore, wind parameters such as wind speed can also be calculated by using the mechanical signals of the detection points at various preset positions.

As shown in FIG. 4 , more preset positions can also be set on the circle passed by the detection point 400 when it rotates. For example, two preset positions are set on the rotating circle of the force sensor, which are respectively the third position C and the fourth position D. At the positions where the diameters CD in the vertical direction of the circle intersect, the wind force can be obtained more accurately by detecting mechanical signals at four preset positions.

In this embodiment, the position signal of the detection point on the rotating component is detected by the acceleration sensor, and the mechanical signal when the detection point on the rotating component is in at least two preset positions is detected by the force sensor, so that the rotation speed of the rotating component can be directly obtained. During the process, the mechanical signals generated by the wind force carried by different positions and the detected mechanical signals acting on the blades have high accuracy and small error, and then the wind direction with high accuracy can be calculated based on the above mechanical signals.

Fig. 5 is a schematic structural view of the first embodiment of the wind force detector of the present invention. As shown in Figure 5, the wind force detector in this embodiment includes a mechanical sensor 501 and a signal processor 502, wherein the mechanical sensor 501 is used to detect the mechanical signal when the detection point on the rotating part is at least two preset positions, in practice In application, the mechanical sensor is usually installed on the front end or the windward side of the rotating component; the signal processor 502 is used to obtain the wind direction of the wind force according to at least two preset positions and corresponding mechanical signals.

In this embodiment, by using the mechanical sensor to detect the mechanical signal when the detection point on the rotating component is at least two preset positions, the mechanical signal generated by the wind force carried by the rotating component during the rotation can be directly detected, and the detected rotation The mechanical signal on the component has high precision and small error, and then the wind direction with high precision can be calculated according to the above mechanical signal.

Fig. 6 is a schematic structural diagram of the second embodiment of the wind force detector of the present invention. As shown in Figure 6, on the basis of the wind detector shown in Figure 5, the wind detector in this embodiment also includes a position sensor 503, the position sensor 503 is connected with the signal processor 502, and is used to detect The position signal of the detection point, that is, the position signal of the mechanical sensor 501 installed at the position of the detection point is detected. When the signal processor 502 determines that the detection point on the rotating part is at a preset position based on the position signal detected by the position sensor 503, it obtains The mechanical sensor detects the mechanical signal of the detection point on the rotating component, and the signal processor 502 can calculate the wind direction of the wind force according to the mechanical signal detected by the mechanical sensor 501 at the preset position by using the Bernoulli equation.

Further, the signal processor can also acquire wind parameters such as wind speed and wind force according to at least two preset positions and corresponding mechanical signals.

In practical applications, the force sensor 501 may include one or more of a pressure sensor, a tension sensor and a pressure sensor, and the pressure sensor, the tension sensor and the pressure sensor are used to detect the pressure signal, the tension signal and the pressure signal of the detection point respectively; The position sensor 503 may be an acceleration sensor; when it is determined based on the position signal detected by the position sensor 503 that the detection point on the rotating component is at a preset position, the force sensor 501 detects the mechanical signal of the detecting point on the rotating component. Referring to Fig. 4, the first position A and the second position B are the positions where the circle passed by the detection point rotates and the diameter of the circle in the horizontal direction intersects, and the position sensor 503 is set at the first position A and the second position B. The acceleration is a horizontal preset value. When the position sensor 503 detects that the acceleration is a horizontal preset value, the marker force sensor 501 is in the first position A or the second position B; The corresponding mechanical signal obtains wind parameters such as wind direction and wind speed.

Fig. 7 is a schematic structural view of the third embodiment of the wind force detector of the present invention. As shown in Figure 7, the wind force detector in this embodiment also includes a frame 504, which is a cylinder. In this embodiment, the technical solution is introduced by taking the force sensor 501 and the position sensor 503 as an example of a pressure sensor and an acceleration sensor respectively. The force sensor 501 and the position sensor 503 are fixedly installed on the surface of the frame 504, with the position of the force sensor 501 as the detection point, the position sensor 503 identifies the position signal of the force sensor 501 by the acceleration shown by it; the force sensor 501 and the position sensor The line between 503 is parallel to the axis of rotation when the frame 504 rotates. Referring to Fig. 4, during the rotation process of the frame 504 around the rotation axis, the frame 504 will carry the dynamic sensor 501 and the position sensor 503 to make a circular motion, and determine that the force sensor 501 is in the first position A or the second position based on the position signal detected by the position sensor 503. At position B, the mechanical sensor 501 detects the pressure signal generated by the wind force.

During the working process of the wind force detector, the position sensor 503 detects the position signal of the force sensor 501 and notifies the signal processor 502 of its position signal, and the force sensor 501 detects the pressure signal generated by the wind force and notifies the signal processor 502, and the signal processor 502 Obtain the pressure signal detected when the mechanical sensor 501 is in the first position A and the second position B according to the position signal; since the pressure signal generated by the wind speed and wind force is proportional, it can be obtained according to the pressure signal at the first position A and the second position B The pressure signal is used to calculate the wind speed. At the same time, wind parameters such as wind direction and wind direction can also be calculated according to the above mechanical signals.

In practical applications, the mechanical sensor 501 shown in FIG. 7 can also be a tension sensor, which detects the tension signal at a preset position through the tension sensor, and the signal processor obtains wind parameters such as wind speed and wind direction according to the tension signal.

Fig. 8 is a schematic structural view of the fourth embodiment of the wind force detector of the present invention. As shown in Figure 8, in this embodiment, the mechanical sensor 501 is a pressure sensor. In order to make the pressure signal detected by the mechanical sensor 501 more accurate, the mechanical sensor 501 can be installed inside the frame 504, with the mechanical sensor 501 located The position is the detection point, and the mechanical sensor 501 communicates with the outside world through the through hole 505, so as to reduce the influence of the relatively large linear velocity of the mechanical sensor 501 on the detected pressure signal. The axis of rotation when 504 rotates is parallel. When the frame 504 rotates around the axis of rotation, it will drive the pressure sensor and the acceleration sensor 503 to make a circular motion around the axis of rotation of the rotating component. The force sensor 501 detects pressure signals at various positions on the circle, and the position sensor 503 detects that the force sensor 501 is at each position on the circle. Position signal at position time.

Fig. 9 is a front view of the fourth embodiment of the wind detector of the present invention, and Fig. 10 is a top view of the fourth embodiment of the wind detector of the present invention. As shown in Figures 9 and 10, the frame in this embodiment is a cylinder 5041 and a flat plate 5042 fixed together, and the force sensor 501 can be a pressure sensor or a tension sensor; usually, the force sensor 501 and the position sensor 503 are installed On the surface of the cylinder 5041 or the surface of the plate 5042. Preferably, the mechanical sensor 501 is installed on the flat plate 5042, so that the mechanical sensor 501 can fully contact the airflow, and improve the accuracy of the mechanical signal detected by the mechanical sensor 501.

Further, in this embodiment, when the mechanical sensor 501 is a pressure sensor, the pressure sensor is installed inside the frame, and the pressure sensor is in contact with the external air flow through the through hole arranged on the frame, so as to reduce the larger linear velocity of the pressure sensor The influence on the detected pressure signal makes the pressure signal generated by the wind force detected by the pressure sensor more accurate and has smaller errors.

Fig. 11 is a schematic structural diagram of the first embodiment of the wind power generator of the present invention. As shown in FIG. 11 , the wind power generator in this embodiment includes a blade 101, a wind deflector 102, a generator 103, a nacelle cover 104, a tower 105 and a tower base 106, and the wind force detector 20 is installed on the wind deflector 102, Wherein, the wind force detector 50 may adopt any one of the structures described above. In this embodiment, the wind force detector 50 adopts the structure shown in FIG. 7, and referring to FIG. Wind force detector 50 also rotates thereupon, and mechanical sensor 501 and position sensor 503 on the wind force detector 50 will do circular motion, and mechanical sensor 501 detects the mechanical signal that wind force produces, and mechanical signal comprises pressure signal, tension signal and pressure signal. at least one.

During the working process of the wind force detector, the position sensor 503 will detect the position signal of the force sensor 501 and notify the signal processor 502. signal, and calculate the wind direction according to the mechanical signals at the first position A and the second position B. At the same time, to obtain the angle between the wind direction and the rotation axis of the impeller 101 when it rotates, the wind generator adjusts the impeller 101 and The position of the shroud 102 makes the rotation axis of the impeller 101 parallel to the wind direction to obtain more wind energy and improve the power generation efficiency of the wind power generator.

In practical applications, in addition to obtaining the mechanical signals detected when the mechanical sensor 501 is in the first position A and the second position B, it can also detect the mechanical signals when the mechanical sensor 501 is in other positions, and the signal processor 502 according to the above mechanical The signal is calculated to obtain wind parameters such as wind speed and wind direction.

Fig. 12 is a schematic structural diagram of the second embodiment of the wind power generator of the present invention. As shown in Fig. 12, in this embodiment, the mechanical sensor and the acceleration sensor in the wind detector are directly fixed on the front end of the wind deflector 102 of the wind generator, and do not need to be installed on the wind deflector 102 through the frame, to simplify The structure of the wind power generator reduces the manufacturing cost.

In each embodiment of the above-mentioned wind power generator of the present invention, the wind power detector is installed in the upwind direction of the blade to improve the accuracy of the detection of the wind power detector when it acts on the wind force parameters of the blade. Adjust the rotation axis of the impeller to be parallel to the wind direction, thereby improving the power generation efficiency of the wind generator, reducing the partial load of the wind generator, and prolonging the service life of the wind generator.

It can be understood that, the above embodiments are only exemplary embodiments adopted for illustrating the principle of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims (16)

1. a method for wind-force detection, is characterized in that, comprising:

The check point detected on rotary part is in mechanical signal during at least two predeterminated positions;

Described at least two predeterminated positions comprise:

Primary importance and the second place;

Described primary importance and the second place are respectively the position that when described check point rotates, the circumference of process is crossing with this circumference diameter in the horizontal direction;

Wherein, the mechanical signal when check point on described detection rotary part is at least two predeterminated positions comprises:

Detect the position signalling of the check point on described rotary part;

When check point on described rotary part is in predeterminated position, detect the mechanical signal of described check point;

The wind direction of wind-force is obtained according to the mechanical signal of described at least two predeterminated positions and correspondence thereof.

2. the method for wind-force detection according to claim 1, characterized by further comprising:

The wind speed of wind-force is obtained according to the mechanical signal of described at least two predeterminated positions and correspondence thereof.

3. the method for wind-force detection according to claim 1, it is characterized in that, described at least two predeterminated positions also comprise:

3rd position and the 4th position;

Circumference and this circumference that described 3rd position and the 4th position are respectively process when described check point rotates are in the crossing position of the diameter of vertical direction.

4. the method for wind-force detection according to claim 1, it is characterized in that, the position signalling of the check point on the described rotary part of described detection comprises:

The position signalling of the check point on described rotary part is detected by acceleration transducer;

When the acceleration that described acceleration transducer detects is level-preset value, the check point identified on described rotary part is in described primary importance and the second place.

5. the method for wind-force detection according to claim 1, it is characterized in that, the mechanical signal of described check point comprises:

At least one in the pressure signal of described check point, pulling force signal and pressure signal.

6., according to the method that the arbitrary described wind-force of claim 1-5 detects, it is characterized in that, described rotary part is the kuppe of aerogenerator.

7. a wind-force detector, is characterized in that comprising:

Mechanics sensor, the mechanical signal when the check point detected on rotary part is at least two predeterminated positions;

Signal processor, for obtaining the wind direction of wind-force according to the mechanical signal of described at least two predeterminated positions and correspondence thereof;

Position transducer, for detecting the position signalling of the check point on described rotary part;

When the position signalling detected based on described position transducer determines that the check point on described rotary part is in predeterminated position, described mechanics sensor detects the mechanical signal of described check point.

8. wind-force detector according to claim 7, is characterized in that, described signal processor also for:

The wind speed of wind-force is obtained according to the mechanical signal of described at least two predeterminated positions and correspondence thereof.

9. wind-force detector according to claim 7, it is characterized in that, described mechanics sensor comprises:

At least one in pressure transducer, pulling force sensor and pressure transducer;

Described pressure transducer, pulling force sensor and pressure transducer are respectively used to detect the pressure signal of described check point, pulling force signal and pressure signal.

10. wind-force detector according to claim 7, it is characterized in that, described position transducer comprises:

Acceleration transducer, when the acceleration that described acceleration transducer detects is level-preset value, the check point identified on described rotary part is in primary importance and the second place;

Described primary importance and the second place are respectively the position that when described check point rotates, the circumference of process is crossing with this circumference diameter in the horizontal direction.

11. wind-force detectors according to claim 7, characterized by further comprising:

Framework, described mechanics sensor and position transducer are installed on said frame.

12., according to wind-force detector described in claim 11, is characterized in that, described framework is right cylinder, and described mechanics sensor comprises pressure transducer and/or pulling force sensor;

Described mechanics sensor and position transducer are arranged on the surface of described framework.

13., according to wind-force detector described in claim 11, is characterized in that, described framework is right cylinder, and described mechanics sensor comprises pressure transducer;

Described position transducer is arranged on the surface of described framework;

Described pressure transducer is arranged on the inside of described framework, and is contacted with outer gas stream by through hole.

14., according to wind-force detector described in claim 11, is characterized in that, described framework comprises the right cylinder and flat board that are fixedly connected with, and described mechanics sensor comprises pressure transducer and/or pulling force sensor;

Described mechanics sensor and position transducer are arranged on the surface of described framework.

15., according to wind-force detector described in claim 11, is characterized in that, described framework comprises the right cylinder and flat board that are fixedly connected with, and described mechanics sensor comprises pressure transducer;

Described position transducer is arranged on the surface of described framework;

Described pressure transducer is arranged on the inside of described framework, and is contacted with outer gas stream by through hole.

16. 1 kinds of aerogenerators, is characterized in that, comprise the arbitrary described wind-force detector of claim 7-15.