CN210660448U - Small and medium-sized wind turbine yaw parameter measuring system - Google Patents
Small and medium-sized wind turbine yaw parameter measuring system Download PDFInfo
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- CN210660448U CN210660448U CN201921521234.5U CN201921521234U CN210660448U CN 210660448 U CN210660448 U CN 210660448U CN 201921521234 U CN201921521234 U CN 201921521234U CN 210660448 U CN210660448 U CN 210660448U
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Abstract
The utility model discloses a middle-size and small-size wind energy conversion system parameter measurement system that drifts, include: the wind power generation system comprises a small and medium-sized wind turbine, a wind speed and direction sensor, a yaw angle measuring device, a rotating speed sensor, a power detection device, a controller and an industrial control screen; the wind speed and direction sensor is arranged at a position close to a wind wheel blade of a small and medium-sized wind turbine, the yaw angle measuring device is in transmission connection with a rotating shaft of the small and medium-sized wind turbine, the rotating speed sensor and the power detecting device are electrically connected with the small and medium-sized wind turbine, the wind speed and direction sensor, the yaw angle measuring device, the rotating speed sensor and the power detecting device are electrically connected with the controller, and the controller is further electrically connected with the industrial control screen. The system realizes accurate measurement of the yaw angle of the wind turbine through reasonable structural design of the yaw angle measuring device, simultaneously realizes measurement of various yaw parameters of incoming wind direction, wind speed, rotating speed and output power of the wind turbine, and has more comprehensive and accurate system measurement data.
Description
Technical Field
The utility model relates to a wind energy conversion system operational parameter measures technical field, and more specifically the utility model relates to a middle-size and small-size wind energy conversion system parameter measurement system that drifts.
Background
Currently, wind power is receiving more and more attention as a clean renewable energy source, and wind power generation has attracted attention as a main form of wind power utilization. In the process of wind power generation, the wind direction may change at any time, so yaw control needs to be performed on the wind turbine, and the yaw control is the key for automatically and accurately aligning the wind within the range of the available wind speed of the wind turbine, so that the utilization rate of wind energy is improved. The measurement of the yaw parameters and the calculation of the yaw angle in the yaw control are very critical parts, and the accurate yaw angle calculation is not only beneficial to improving the reliability of the yaw control, but also can accurately calculate the position of the wind turbine cabin and the cable twisting angle.
The existing yaw angle measurement is usually performed by means of a potentiometer. In the measuring process, the potentiometer can be used as a sensor of a yaw angle, the potentiometer and the yaw bearing rotate synchronously, so that the rotating angle of the yaw bearing is measured and recorded, the current numerical value of the yaw angle is obtained, and then a corresponding signal is output to the main control system according to the current numerical value of the yaw angle. However, due to the defects of the characteristics of the potentiometer, and the signal output by the potentiometer is easily interfered by the outside, and the signal corresponding to the yaw angle may be abnormal even if the potentiometer is used for a long time, so that the measurement accuracy of the yaw angle of the wind turbine is low.
Therefore, how to provide a wind turbine yaw parameter measuring system with high accuracy is a problem that needs to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a middle-size and small-size wind energy conversion system of yawing parameter measurement, this system realize the high accuracy measurement of the small-size wind energy conversion system yawing angle of centering through yawing angle measuring device, simultaneously, still realized the measurement to the multiple yawing parameter of incoming flow wind direction wind speed, wind energy conversion system rotational speed, output, measured data is more comprehensive and accurate, has solved the problem that the mode measurement accuracy that adopts the potentiometre to measure yawing angle is low.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a small and medium-sized wind turbine yaw parameter measuring system comprises: the wind power generation system comprises a small and medium-sized wind turbine, a wind speed and direction sensor, a yaw angle measuring device, a rotating speed sensor, a power detection device, a controller and an industrial control screen;
the wind speed and direction sensor is arranged close to a wind wheel blade of the small and medium-sized wind turbine, the yaw angle measuring device is in transmission connection with a rotating shaft of the small and medium-sized wind turbine, the rotating speed sensor and the power detecting device are electrically connected with the small and medium-sized wind turbine, the wind speed and direction sensor, the yaw angle measuring device, the rotating speed sensor and the power detecting device are electrically connected with the controller, and the controller is further electrically connected with the industrial control screen.
Furthermore, the yaw angle measuring device comprises an angular displacement sensor, a sensor support, a first transmission gear and a second transmission gear, one end of the sensor support is fixedly connected with the angular displacement sensor, the other end of the sensor support is fixedly connected with the small and medium-sized wind turbine, the angular displacement sensor is fixedly connected with the first gear, the second transmission gear is fixedly connected with a rotating shaft of the wind turbine, and the first gear is meshed with the second transmission gear.
Further, the sensor bracket comprises a sensor mounting piece, a wind turbine mounting piece and a connecting piece;
the middle part of the sensor mounting piece is provided with a rotor mounting hole and a plurality of sensor fixing holes, a rotor of the angular displacement sensor passes through the rotor mounting hole and is fixedly connected with the first transmission gear, and the angular displacement sensor is also fixedly connected with the sensor fixing holes through a plurality of bolts;
the wind turbine installation sheet is provided with a plurality of fan fixing holes, a plurality of bolts matched with the fan fixing holes are installed on a rotating shaft fixing frame of the small and medium-sized wind turbine, and the plurality of bolts respectively penetrate through the plurality of fan fixing holes to realize the fixed connection of the wind turbine installation sheet and the small and medium-sized wind turbine;
one end of the connecting sheet is vertically connected with the sensor mounting sheet, the other end of the connecting sheet is vertically connected with the small and medium-sized wind turbine mounting sheet, and the sensor mounting sheet, the wind turbine mounting sheet and the connecting sheet are integrally formed.
Furthermore, the power detection device comprises a rectifier, a direct current electronic load, a voltage transmitter and a current transmitter, wherein the input end of the rectifier is electrically connected with the small and medium-sized wind turbine, the output end of the rectifier is electrically connected with the direct current electronic load, the direct current electronic load is respectively electrically connected with the input end of the voltage transmitter and the input end of the current transmitter, and the output end of the voltage transmitter and the output end of the current transmitter are both electrically connected with the controller.
In particular, the controller is a programmable automation controller of model GE RX3 i. The GE RX3i is a high-end programmable logic automation controller which optimally combines the characteristics of a PLC and a PC, and the processor of the controller adopts a 1.0GHz Intel microprocessor as a system core, supports the functions of Ethernet and serial communication, and can efficiently undertake the data processing and storage tasks of the yaw measuring system.
According to the technical scheme, compare with prior art, the utility model discloses a middle-size and small-size wind energy conversion system parameter measurement system that drifts about, this system have realized the accurate measurement to wind energy conversion system yaw angle through driftage angle measuring device's reasonable structural design, simultaneously, have still realized the measurement to the multiple driftage parameter of incoming flow wind direction wind speed, wind energy conversion system rotational speed, output, and system measurement data is more comprehensive and accurate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of an overall structure architecture of a yaw parameter measurement system of a small and medium sized wind turbine according to the present invention;
fig. 2 is a schematic structural diagram of a yaw angle measuring device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an angular displacement sensor according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an angular displacement sensor according to another view angle in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a sensor holder according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a hardware wiring relationship of a yaw parameter measurement system of a small and medium sized wind turbine according to the present invention;
fig. 7 is a schematic system configuration diagram of the GE RX3i controller according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached figure 1, the embodiment of the utility model discloses middle-size and small-size wind turbine parameter measurement system that drifts about, this system includes: the wind power generation system comprises a small and medium-sized wind turbine 1, a wind speed and direction sensor 3, a yaw angle measuring device 2, a rotating speed sensor 4, a power detection device 5, a controller 6 and an industrial control screen 7;
the wind speed and direction sensor 3 is arranged close to the wind wheel blades of the small and medium-sized wind turbines 1, and the wind speed and direction sensor 3 is used for collecting incoming wind speed and wind direction data around the wind wheel blades of the small and medium-sized wind turbines 1 in real time;
the yaw angle measuring device 2 is in transmission connection with a rotating shaft of the small and medium-sized wind turbine 1, and the yaw angle measuring device 2 is used for measuring yaw angle data of the small and medium-sized wind turbine 1 in real time;
the rotating speed sensor 4 is electrically connected with the small and medium-sized wind turbine 1, and the rotating speed sensor 4 is used for measuring the rotating speed data of the wind wheel of the small and medium-sized wind turbine 1 in real time;
the power detection device 5 is electrically connected with the small and medium-sized wind turbines 1, and the power detection device 5 is used for measuring the output power data of the small and medium-sized wind turbines 1 in real time;
the wind speed and direction sensor 3, the yaw angle measuring device 2, the rotating speed sensor 4 and the power detection device 5 are all electrically connected with the controller 6, the controller 6 is also electrically connected with the industrial control screen 7, wind direction, wind speed, rotating speed, angular displacement and power signals input into the controller 6 are processed and then output to the industrial control screen 7, and the industrial control screen 7 is used for displaying curves and historical curves in real time.
In a specific embodiment, referring to fig. 2, the yaw angle measuring device 2 includes an angular displacement sensor 21, a sensor bracket 22, a first transmission gear 23 and a second transmission gear 24, one end of the sensor bracket 22 is fixedly connected to the angular displacement sensor 21, the other end of the sensor bracket 22 is fixedly connected to a tower of the small and medium-sized wind turbine 1, the angular displacement sensor 21 is fixedly connected to the first transmission gear 23, the second transmission gear 24 is fixedly connected to a rotating shaft of the small and medium-sized wind turbine 1, and the first transmission gear 23 is engaged with the second transmission gear 24. When the wind wheel is laterally deviated, the angular displacement sensor 21 is also deviated by the same angle, so that the purpose of measuring the deviation angle is achieved.
Specifically, the specific parameters of the angular displacement sensor in the present embodiment can be seen from table 1 below:
table 1 angular displacement sensor performance parameter table
The structure of the angular displacement sensor 21 can be seen in fig. 3 and 4. The angle sensor comprises a rotor 211 and a sensor body 212, the sensor body 212 is fixed on the sensor mounting plate, and the rotor 211 penetrates through the sensor bracket 22 and is fixed with the first transmission gear 23. The three joints in fig. 4 are: "a" is the zero phase of the sensor, "b" is the input to the sensor, and "c" is the output of the sensor.
The input and output of the angular displacement sensor are analog direct-current voltage signals, and the magnitude of the output voltage is determined by the magnitude of the voltage input by the input end, such as: the input is 5V, and the output of the whole two components is: 0-5V, 10V is input, and the output of the whole range is as follows: 0-10V, and so on. It is calculated that the blocking of the present angular displacement sensor is 5K omega and the maximum input voltage must not exceed 50V.
The measurable angular range of the angular displacement sensor in this embodiment is 345 ° ± 2 °, for ease of calculation and selection of the desired measurement range, a gear transmission with a transmission ratio of 1:1 is employed. Because the size needs to be more special, adopt 3D to print two gears of preparation. Two gear parameters are as follows in table 2:
TABLE 2 Gear parameters
In one particular embodiment, referring to FIG. 5, the sensor bracket 22 includes a sensor mounting tab 221, a wind turbine mounting tab 223, and a connection tab 222;
a rotor mounting hole and a plurality of sensor fixing holes are formed in the middle of the sensor mounting piece 221, the rotor 211 of the angular displacement sensor 21 penetrates through the rotor mounting hole to be fixedly connected with the first transmission gear 23, and the sensor body 212 of the angular displacement sensor 21 is fixedly connected with the plurality of sensor fixing holes through a plurality of bolts;
the wind turbine installation sheet 223 is provided with a plurality of fan fixing holes, the number of the fan fixing holes in the embodiment is 2, a plurality of bolts matched with the fan fixing holes are installed on a rotating shaft fixing frame (namely, a tower frame of the wind turbine) of the small and medium-sized wind turbine 1, and the plurality of bolts respectively penetrate through the plurality of fan fixing holes to realize the fixed connection of the wind turbine installation sheet 223 and the small and medium-sized wind turbine 1;
one end of the connecting piece 222 is vertically connected with the sensor mounting piece 221, the other end of the connecting piece is vertically connected with the wind turbine mounting piece 223, and the sensor mounting piece 221, the wind turbine mounting piece 223 and the connecting piece 222 are integrally formed.
In the present embodiment, a 1mm stainless steel plate is selected as a raw material as needed in consideration of the strength and thickness of the sensor holder 22.
In a specific embodiment, referring to fig. 1 and 6, the power detection device 5 includes a rectifier 51, a dc electronic load 52, a voltage transducer 54 and a current transducer 53, an input end of the rectifier 51 is electrically connected to the small and medium sized wind turbine 1, an output end of the rectifier 51 is electrically connected to the dc electronic load 52, the dc electronic load 52 is electrically connected to an input end of the voltage transducer 54 and an input end of the current transducer 53, respectively, and an output end of the voltage transducer 54 and an output end of the current transducer 53 are electrically connected to the controller 6.
In particular, the controller 6 is a programmable automation controller of type GE RX3 i. The GE RX3i is a high-end programmable logic automation controller which optimally combines the characteristics of a PLC and a PC, and the processor of the controller adopts a 1.0GHz Intel microprocessor as a system core, supports the functions of Ethernet and serial communication, and can efficiently undertake the data processing and storage tasks of the yaw measuring system. In this embodiment, the Quick Panel Control industrial Control screen is selected as the industrial Control screen, and the configuration of the Control part is shown in fig. 7.
In this embodiment, the wind direction and speed sensor 3 collects incoming flow wind speed and direction data, the wind turbine performs passive yaw under the action of the yaw speed adjusting device 2, the angular displacement sensor 21 is meshed with the second transmission gear through the first transmission gear of the fixed rotating shaft to output a yaw angle value, and the second transmission gear can be understood as a yaw gear.
The alternating current normally output by the small and medium-sized wind turbines is rectified by a rectifier 51 and then supplied to a direct current electronic load 52, and the direct current electronic load 52 finally outputs a voltage signal and a current signal to a GE RX3i controller to serve as the power value of the wind turbines.
The wind direction, wind speed, rotating speed, angular displacement and power signals input into the GE RX3i controller are processed and output to a Quick Panel Control industrial Control screen to be displayed and output in a real-time curve and a historical curve.
In summary, compared with the prior art, the yaw parameter measurement system of the small and medium-sized wind turbine provided by the embodiment has the following advantages:
1. the system realizes accurate measurement of the yaw angle of the wind turbine through reasonable structural design of the yaw angle measuring device;
2. the system also realizes the measurement of various yaw parameters of the incoming flow wind direction and speed, the rotating speed of the wind machine and the output power, and the measurement data of the system are more comprehensive and accurate.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A small and medium-sized wind turbine yaw parameter measuring system is characterized by comprising: the wind power generation system comprises a small and medium-sized wind turbine, a wind speed and direction sensor, a yaw angle measuring device, a rotating speed sensor, a power detection device, a controller and an industrial control screen;
the wind speed and direction sensor is arranged close to a wind wheel blade of the small and medium-sized wind turbine, the yaw angle measuring device is in transmission connection with a rotating shaft of the small and medium-sized wind turbine, the rotating speed sensor and the power detecting device are electrically connected with the small and medium-sized wind turbine, the wind speed and direction sensor, the yaw angle measuring device, the rotating speed sensor and the power detecting device are electrically connected with the controller, and the controller is further electrically connected with the industrial control screen.
2. The system for measuring the yaw parameter of the small and medium-sized wind turbine as claimed in claim 1, wherein the yaw angle measuring device comprises an angular displacement sensor, a sensor bracket, a first transmission gear and a second transmission gear, one end of the sensor bracket is fixedly connected with the angular displacement sensor, the other end of the sensor bracket is fixedly connected with the small and medium-sized wind turbine, the angular displacement sensor is fixedly connected with the first transmission gear, the second transmission gear is fixedly connected with a rotating shaft of the small and medium-sized wind turbine, and the first transmission gear is meshed with the second transmission gear.
3. The system for measuring the yaw parameter of the small and medium-sized wind turbine as claimed in claim 2, wherein the sensor bracket comprises a sensor mounting piece, a wind turbine mounting piece and a connecting piece;
the middle part of the sensor mounting piece is provided with a rotor mounting hole and a plurality of sensor fixing holes, a rotor of the angular displacement sensor passes through the rotor mounting hole and is fixedly connected with the first transmission gear, and the angular displacement sensor is also fixedly connected with the sensor fixing holes through a plurality of bolts;
the wind turbine installation sheet is provided with a plurality of fan fixing holes, a plurality of bolts matched with the fan fixing holes are installed on a rotating shaft fixing frame of the small and medium-sized wind turbine, and the plurality of bolts respectively penetrate through the plurality of fan fixing holes to realize the fixed connection of the wind turbine installation sheet and the small and medium-sized wind turbine;
one end of the connecting sheet is vertically connected with the sensor mounting sheet, the other end of the connecting sheet is vertically connected with the small and medium-sized wind turbine mounting sheet, and the sensor mounting sheet, the wind turbine mounting sheet and the connecting sheet are integrally formed.
4. The system for measuring the yaw parameter of the small and medium-sized wind turbine as claimed in claim 1, wherein the power detection device comprises a rectifier, a direct current electronic load, a voltage transmitter and a current transmitter, the input end of the rectifier is electrically connected with the small and medium-sized wind turbine, the output end of the rectifier is electrically connected with the direct current electronic load, the direct current electronic load is electrically connected with the input end of the voltage transmitter and the input end of the current transmitter respectively, and the output end of the voltage transmitter and the output end of the current transmitter are both electrically connected with the controller.
5. The system as claimed in any one of claims 1 to 4, wherein the controller is a programmable automation controller of type GERX3 i.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921521234.5U CN210660448U (en) | 2019-09-12 | 2019-09-12 | Small and medium-sized wind turbine yaw parameter measuring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921521234.5U CN210660448U (en) | 2019-09-12 | 2019-09-12 | Small and medium-sized wind turbine yaw parameter measuring system |
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| CN210660448U true CN210660448U (en) | 2020-06-02 |
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| CN201921521234.5U Active CN210660448U (en) | 2019-09-12 | 2019-09-12 | Small and medium-sized wind turbine yaw parameter measuring system |
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