CN103207082A - Test system and test method of variable propeller system of wind turbine generator group - Google Patents
Test system and test method of variable propeller system of wind turbine generator group Download PDFInfo
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- CN103207082A CN103207082A CN201210012955XA CN201210012955A CN103207082A CN 103207082 A CN103207082 A CN 103207082A CN 201210012955X A CN201210012955X A CN 201210012955XA CN 201210012955 A CN201210012955 A CN 201210012955A CN 103207082 A CN103207082 A CN 103207082A
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Abstract
The invention provides a test system and a test method of a variable propeller system of a wind turbine generator group. The test system comprises a loading controller, a dragging driver and a dragging motor, wherein the loading controller comprises a load calculation unit and a load output terminal; the dragging driver is connected with the load output terminal; the dragging motor is connected with the dragging driver; and an output shaft of the dragging motor is coaxially connected with an output shaft of a variable propeller motor to be tested. A loading device structure is simple and a complex hydraulic system is not needed to be arranged in the test system, so that an integral structure of the test system is simplified and the costs of the test system are reduced.
Description
Technical field
The present invention relates to wind generating technology, relate to a kind of test macro and method of testing of wind-powered electricity generation set pitch control system especially.
Background technology
In wind power generating set, pitch-controlled system is the important component part in the wind-powered electricity generation unit, and pitch-controlled system mainly comprises controller, driver and change oar motor etc.Controller calculates the propeller pitch angle of expectation according to corresponding operating mode, send instruction for then the corresponding driver of each blade, become the oar motor accordingly by driver control and rotate, change propeller pitch angle by the rotating drive blade that becomes the oar motor, satisfy the requirement of change oar.
Before pitch-controlled system being installed on actual wind-powered electricity generation unit operation, be necessary the performance of pitch-controlled system is tested.
At present, in the proving installation of pitch-controlled system, by hydraulic system simulation wind to the root of blade torque to be carried in the rotating shaft that becomes the oar motor, still, therefore the hydraulic system structure complexity, makes the complex structure of whole testing device.
Summary of the invention
First aspect of the present invention provides a kind of test macro of wind-powered electricity generation set pitch control system, to simplify the test system structure of pitch-controlled system.
The test macro of this wind-powered electricity generation set pitch control system comprises:
Loading control comprises load calculation unit and load output terminal, and described load calculation unit is used for calculating torque set-point under each operating mode according to preset algorithm, and from described load output terminal output;
Drag driver, link to each other with described load output terminal, be used for according to the torque control signal of described torque set-point generation to dragging motor, to regulate frequency of input voltage and/or the amplitude of dragging motor;
Dragging motor, link to each other with the described driver that drags, and coaxial the linking to each other of output shaft of the output shaft of described dragging motor and change oar motor to be measured, described dragging motor is used for producing torque according to described torque control signal, and is applied on the output shaft of described change oar motor to be measured as load.
The present invention provides a kind of method of testing of wind-powered electricity generation set pitch control system on the other hand, and this method comprises:
The load calculation unit of loading control calculates torque set-point under each operating mode according to preset algorithm, and from the load output terminal output of described loading control;
Drag driver according to the torque control signal of described torque set-point generation to dragging motor, to regulate frequency of input voltage and/or the amplitude of dragging motor;
Dragging motor produces torque according to described torque control signal, and is applied on the output shaft of change oar motor to be measured as load.
The test macro of wind-powered electricity generation set pitch control system provided by the invention, drag driver and dragging motor and constitute charger, dragging motor produces torque dragging under the driver control, and be applied on the output shaft of change oar motor to be measured as load, this torque under each operating mode of simulation because of wind to the gravity effect of the effect of blade and blade itself level of torque to the output shaft generation that becomes the oar motor, therefore, this charger can be according to becoming the influence that is subjected to load when the oar motor moves in the pitch-controlled system under each operating mode, the output shaft that becomes the oar motor is applied torque, this charger is simple in structure, do not need to arrange baroque hydraulic system, therefore, simplified the one-piece construction of test macro, and, the cost of test macro reduced.
Description of drawings
The structural representation of the test macro of the wind-powered electricity generation set pitch control system that Fig. 1 provides for the embodiment of the invention;
The structural representation of the test macro of the wind-powered electricity generation set pitch control system that Fig. 2 provides for another embodiment of the present invention;
The structural representation of the test macro of the wind-powered electricity generation set pitch control system that Fig. 3 provides for further embodiment of this invention;
The process flow diagram of the method for testing of the wind-powered electricity generation set pitch control system that Fig. 4 provides for the embodiment of the invention;
The process flow diagram of the method for testing of the wind-powered electricity generation set pitch control system that Fig. 5 provides for another embodiment of the present invention.
Embodiment
Wind-power electricity generation is by the wind-powered electricity generation unit wind energy to be converted to the energy utilization technology of electric energy, is the developing direction of with fastest developing speed and tool potentiality in the present new energy development field.
Because wind energy is as a kind of intermittent energy source, have very big randomness and uncontrollability, therefore, the fluctuation range of wind-powered electricity generation unit output power is bigger, need by pitch-controlled system according to change of wind velocity at any time the propeller pitch angle of adjusting vane control the wind energy that aerogenerator absorbs, thereby improve the efficient of whole wind group of motors.
Pitch-controlled system plays an important role in the wind-powered electricity generation unit, and for this reason, the embodiment of the invention provides a kind of test macro of wind-powered electricity generation set pitch control system, can simulate the ruuning situation of pitch-controlled system under real working condition, tests with the performance to pitch-controlled system.
The structural representation of the test macro of the wind-powered electricity generation set pitch control system that Fig. 1 provides for the embodiment of the invention, as shown in Figure 1, this test macro comprises loading control 10, drags driver 11 and dragging motor 12.
Loading control 10 comprises load calculation unit 101 and load output terminal 102, and load calculation unit 101 is used for calculating torque set-point under each operating mode according to preset algorithm, and from 102 outputs of load output terminal.
Dragging motor 12 with drag driver 11 and link to each other, and coaxial the linking to each other of output shaft of the output shaft of dragging motor 12 and change oar motor (not shown) to be measured, dragging motor 12 is used for producing torque according to torque control signal, and is applied on the output shaft of change oar motor to be measured as load.
Loading control is the control module of this test macro, and loading control can be the processor of industrial computer or other types.
Loading control comprises load calculation unit and load output terminal, load calculation is provided with preset algorithm in the unit, this preset algorithm is for carrying out the mathematical model of analogue simulation to the operation under the various operating modes of wind-powered electricity generation unit, concrete mathematical model is set up mode and can be determined according to experience, also can set up based on formula, can be according to the wind speed under the various operating modes, calculation of parameter such as leaf position go out the torque set-point under the various operating modes and export to send to from the load output terminal to drag driver, this torque set-point under each operating mode of simulation because of wind to the gravity effect of the effect of blade and blade itself torque to the output shaft generation that becomes the oar motor.
Drag driver and dragging motor and constitute charger jointly, drag driver and also can be frequency converter or other control systems, dragging motor also can be direct current generator, AC induction motor or AC servo motor etc.
Drag driver and generate torque control signal to dragging motor according to the torque set-point of load output terminal output, this torque control signal can be regulated frequency of input voltage and/or the amplitude of dragging motor, thereby changes the torque of dragging motor output.Dragging driver controls the torque of dragging motor output by the adjusting to dragging motor frequency of input voltage and/or amplitude, dragging motor produces respective torque dragging under the driver control, and be applied on the output shaft that becomes the oar motor as load, this torque under each operating mode of simulation because of wind to the gravity effect of the effect of blade and blade itself level of torque to the output shaft generation that becomes the oar motor.
As shown from the above technical solution, the test macro of this wind-powered electricity generation set pitch control system, drag driver and dragging motor and constitute charger, dragging motor produces torque dragging under the driver control, and be applied on the output shaft of change oar motor to be measured as load, this torque under each operating mode of simulation because of wind to the gravity effect of the effect of blade and blade itself level of torque to the output shaft generation that becomes the oar motor, therefore, this charger can be according to becoming the influence that is subjected to load when the oar motor moves in the pitch-controlled system under each operating mode, the output shaft that becomes the oar motor is applied torque, this charger is simple in structure, do not need to arrange baroque hydraulic system, therefore, simplified the one-piece construction of test macro, and, reduced the cost of test macro.
The structural representation of the test macro of the wind-powered electricity generation set pitch control system that Fig. 2 provides for another embodiment of the present invention, as shown in Figure 2, on the basis of above-described embodiment, further, in this test macro, loading control 10 also comprises drive output 103 and drives computing unit 104.
In the present embodiment, variable pitch driver to be measured and change oar motor to be measured can constitute tested pitch-controlled system jointly, the structure of variable pitch driver to be measured and change oar motor to be measured is similar with the structure that drags driver and dragging motor, variable pitch driver to be measured can be frequency converter or other control systems, and change oar motor to be measured can be direct current generator, AC induction motor or AC servo motor etc.
The driving arithmetic element of loading control is calculated propeller pitch angle set-point under each operating mode according to preset algorithm, this propeller pitch angle set-point is the expectation propeller pitch angle of each operating mode lower blade of simulation, and can export to variable pitch driver to be measured by drive output, variable pitch driver to be measured is according to the change oar control signal of propeller pitch angle set-point output to change oar motor to be measured, this change oar control signal can be regulated frequency of input voltage and/or the amplitude of change oar motor to be measured, variable pitch driver to be measured is by controlling the rotational angle of change oar motor to be measured to the adjusting of the frequency of output voltage and/or amplitude, change oar motor to be measured rotates set angle under variable pitch driver control to be measured, change propeller pitch angle with driven vane, finish the change oar action of expectation.
This test macro, variable pitch driver to be measured and change oar motor to be measured can constitute tested pitch-controlled system jointly, simulate the ruuning situation of pitch-controlled system under the various operating modes, so that pitch-controlled system is tested, understand the operation characteristic of pitch-controlled system, to satisfy the wind-powered electricity generation unit to the performance test needs of pitch-controlled system.
As shown in Figure 2, also comprise shaft coupling 15 in this test macro, the output shaft of dragging motor 12 is by output shaft coaxial link to each other of shaft coupling 15 with change oar motor 14 to be measured.
The shaft coupling that adopts multiple structure that shaft coupling is concrete preferably adopts spring coupling, for example radially multilayer flat spring coupling, elastic graph latching shaft coupling, coupling with rubber sleeve etc.
In the present embodiment, shaft coupling not only can play the effect of the transmission of torque of dragging motor being given the output shaft of change oar motor to be measured, and, shaft coupling can play buffering and reduce the effect of the vibration in the transmission of torque process, improve the dynamic property in the transmission of torque process, thereby improve the measuring accuracy of test macro.
And, as described in Figure 2, in this pitch-controlled system scrambler 16 can also be set further, scrambler 16 is used for linking to each other with the output shaft of change oar motor 14 to be measured, for detection of actual rotation angle value and the demonstration of change oar motor 14 to be measured.
Detect the actual rotation angle value of the change oar motor to be measured that obtains by scrambler, deducibility goes out actual propeller pitch angle, actual blade pitch angle and propeller pitch angle set-point compared to know whether pitch-controlled system to be tested can reach the change oar effect of expection, further understand the ruuning situation of pitch-controlled system by this test macro, for the more perfect pitch-controlled system of design provides reference data.
As shown in Figure 2, can also comprise torque sensor 17 in this test macro, torque sensor 17 links to each other with the output shaft of dragging motor 12, for detection of actual torque value and the demonstration of dragging motor 12.
Detect the actual torque value of the dragging motor that obtains by torque sensor, this actual torque value and torque set-point compared to know whether this charger can reach the loading effect of expection, further understand the runnability of charger by this test macro, for the more perfect charger of design provides reference data.
The structural representation of the test macro of the wind-powered electricity generation set pitch control system that Fig. 3 provides for further embodiment of this invention, as shown in Figure 3, in this test macro, drag driver 11, dragging motor 12 and torque sensor 17 and constitute charging assembly 1, variable pitch driver 13 to be measured, change oar motor 14 to be measured and scrambler 16 constitute change oar assembly 2, and charging assembly 1 is identical with the quantity of blade in the wind-powered electricity generation unit with the quantity that becomes oar assembly 2.
Can comprise a plurality of blades in the wind power generating set, be generally three, therefore, only expression shown in Figure 3 comprises the syndeton of three change oar assemblies and charging assembly, in the practical application, the quantity that becomes oar assembly and charging assembly can be set, the mode shown in being not limited to illustrate according to the quantity correspondence of the blade in the wind power generating set.
Each blade correspondence arranges one and becomes oar assembly and a charging assembly, loading control sends to the variable pitch driver to be measured that respectively becomes in the oar assembly and the driver that drags to be measured in each charging assembly respectively with the propeller pitch angle set-point of each blade correspondence and torque set-point, each change oar motor to be measured can correspondingly drive a blade and change propeller pitch angle, and each dragging motor applies torque to the output shaft of correspondence change oar to be measured motor.
In the present embodiment, according to the quantity correspondence of blade in the wind-powered electricity generation unit quantity that becomes oar assembly and charging assembly is set, to test becoming the pitch-controlled system that oar assembly constitutes by each in the wind-powered electricity generation unit, satisfies the wind-powered electricity generation unit to the performance test needs of each pitch-controlled system.
Need to prove, can link to each other by fieldbus between above-mentioned each equipment that carries out the communication of data or signal, for example, can adopt controller local area network's (Controller Area Network is called for short CAN) bus or Profibus bus etc. to link to each other.
The embodiment of the invention provides a kind of method of testing of wind-powered electricity generation set pitch control system, the process flow diagram of the method for testing of the wind-powered electricity generation set pitch control system that Fig. 4 provides for the embodiment of the invention, and as shown in Figure 4, this method of testing may further comprise the steps:
The load calculation unit of step 200, loading control calculates torque set-point under each operating mode according to preset algorithm, and from the load output terminal output of loading control;
This method of testing is the manner of execution of test macro embodiment shown in Figure 1, this method of testing can be according to becoming the influence that is subjected to load when the oar motor moves in the pitch-controlled system under each operating mode, the output shaft that becomes the oar motor is applied torque, this method of testing operation is simple, therefore, simplified the step that pitch-controlled system is tested.
The process flow diagram of the method for testing of the wind-powered electricity generation set pitch control system that Fig. 5 provides for another embodiment of the present invention, as shown in Figure 5, on the basis of above-described embodiment, further, this method of testing also comprises:
The driving computing unit of step 203, loading control calculates propeller pitch angle set-point under each operating mode according to preset algorithm, and export to variable pitch driver to be measured by the drive output of loading control, in order to control variable pitch driver generation to be measured to the change oar control signal of change oar motor to be measured, to regulate frequency of input voltage and/or the amplitude of change oar motor to be measured.
And, as shown in Figure 5, in this method of testing, can also comprise the steps: after the above-mentioned step 203
Step 2031, detect the actual rotation angle value of change oar motor to be measured and show by scrambler.
Further, as shown in Figure 5, in this method of testing, can also comprise after the above-mentioned step 202:
Step 2021, detect the actual torque value of dragging motor and show by torque sensor.
The method of testing of present embodiment can be used for carrying out the method for method embodiment shown in Figure 2, and its realization principle and technique effect are similar, repeat no more herein.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although the present invention has been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (11)
1. the test macro of a wind-powered electricity generation set pitch control system is characterized in that, comprising:
Loading control comprises load calculation unit and load output terminal, and described load calculation unit is used for calculating torque set-point under each operating mode according to preset algorithm, and from described load output terminal output;
Drag driver, link to each other with described load output terminal, be used for according to the torque control signal of described torque set-point generation to dragging motor, to regulate frequency of input voltage and/or the amplitude of dragging motor;
Dragging motor, link to each other with the described driver that drags, and coaxial the linking to each other of output shaft of the output shaft of described dragging motor and change oar motor to be measured, described dragging motor is used for producing torque according to described torque control signal, and is applied on the output shaft of described change oar motor to be measured as load.
2. the test macro of wind-powered electricity generation set pitch control system according to claim 1 is characterized in that, described loading control also comprises:
Drive output is used for linking to each other with variable pitch driver to be measured;
Drive computing unit, for the propeller pitch angle set-point that calculates according to preset algorithm under each operating mode, and export to variable pitch driver to be measured by described drive output, in order to control described variable pitch driver generation to be measured to the change oar control signal of described change oar motor to be measured, to regulate frequency of input voltage and/or the amplitude of described change oar motor to be measured.
3. the test macro of wind-powered electricity generation set pitch control system according to claim 1 and 2 is characterized in that, also comprises:
Shaft coupling, the output shaft of described dragging motor is by output shaft coaxial link to each other of shaft coupling with described change oar motor to be measured.
4. the test macro of wind-powered electricity generation set pitch control system according to claim 2 is characterized in that, also comprises:
Scrambler is used for linking to each other with the output shaft of described change oar motor to be measured, for detection of actual rotation angle value and the demonstration of described change oar motor to be measured.
5. the test macro of wind-powered electricity generation set pitch control system according to claim 4 is characterized in that, also comprises:
Torque sensor links to each other with the output shaft of described dragging motor, for detection of actual torque value and the demonstration of described dragging motor.
6. the test macro of wind-powered electricity generation set pitch control system according to claim 5 is characterized in that:
The described described formation charging assembly of driver, described dragging motor and described torque sensor that drags, described variable pitch driver to be measured, described change oar motor to be measured and described scrambler constitute change oar assembly, and the quantity of described change oar assembly and described charging assembly is identical with the quantity of blade in the wind-powered electricity generation unit.
7. the test macro of wind-powered electricity generation set pitch control system according to claim 2 is characterized in that:
Described change oar motor to be measured and dragging motor are direct current generator, AC induction motor or AC servo motor.
8. the method for testing of a wind-powered electricity generation set pitch control system is characterized in that, comprising:
The load calculation unit of loading control calculates torque set-point under each operating mode according to preset algorithm, and from the load output terminal output of described loading control;
Drag driver according to the torque control signal of described torque set-point generation to dragging motor, to regulate frequency of input voltage and/or the amplitude of dragging motor;
Dragging motor produces torque according to described torque control signal, and is applied on the output shaft of change oar motor to be measured as load.
9. the method for testing of wind-powered electricity generation set pitch control system according to claim 8 is characterized in that, also comprises:
The driving computing unit of described loading control calculates propeller pitch angle set-point under each operating mode according to preset algorithm, and export to variable pitch driver to be measured by the drive output of described loading control, in order to control described variable pitch driver generation to be measured to the change oar control signal of described change oar motor to be measured, to regulate frequency of input voltage and/or the amplitude of described change oar motor to be measured.
10. the method for testing of wind-powered electricity generation set pitch control system according to claim 9, it is characterized in that, the driving computing unit of described loading control calculates propeller pitch angle set-point under each operating mode according to preset algorithm, and export to variable pitch driver to be measured by the drive output of described loading control, in order to control described variable pitch driver generation to be measured to the change oar control signal of the rotational angle of described change oar motor to be measured, also comprise afterwards with frequency of input voltage and/or the amplitude of regulating described change oar motor to be measured:
Detect actual rotation angle value and the demonstration of described change oar motor to be measured by scrambler.
11. the method for testing of arbitrary described wind-powered electricity generation set pitch control system is characterized in that according to Claim 8-10, described dragging motor produces torque according to described torque control signal, and is applied on the output shaft of change oar motor to be measured and also comprises as after the load:
Detect actual torque value and the demonstration of described dragging motor by torque sensor.
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| CN201210012955.XA CN103207082B (en) | 2012-01-16 | 2012-01-16 | The test system of paddle change system of wind turbines and method of testing |
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| CN201210012955.XA CN103207082B (en) | 2012-01-16 | 2012-01-16 | The test system of paddle change system of wind turbines and method of testing |
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| CN112269073A (en) * | 2020-09-15 | 2021-01-26 | 东方电气风电有限公司 | Test platform for offshore wind turbine double-drive pitch-variable system test |
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