CN109356801B - Joint debugging test system of wind generating set - Google Patents
Joint debugging test system of wind generating set Download PDFInfo
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- CN109356801B CN109356801B CN201811623216.8A CN201811623216A CN109356801B CN 109356801 B CN109356801 B CN 109356801B CN 201811623216 A CN201811623216 A CN 201811623216A CN 109356801 B CN109356801 B CN 109356801B
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- 238000012360 testing method Methods 0.000 title claims abstract description 113
- 238000001816 cooling Methods 0.000 claims description 27
- 238000010248 power generation Methods 0.000 claims description 21
- 238000004088 simulation Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 6
- 238000011217 control strategy Methods 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010420 art technique Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
Provided is a joint debugging test system of a wind generating set, comprising: the wind driven generator comprises a tested fan system, a fan dragging system, an upper computer and a connecting shaft device, wherein the tested fan system comprises a fan controller, a fan converter and a wind driven generator, the fan dragging system comprises a dragging controller, a dragging converter and a dragging motor, the fan controller sends operation data under specific wind conditions to the upper computer, the upper computer determines a given rotating speed based on the operation data under the specific wind conditions and the simulated wind speed under the specific wind conditions, the given rotating speed is sent to the dragging converter through the dragging controller, the dragging converter determines given current equivalent to the given rotating speed, the dragging motor is controlled to rotate at the given rotating speed by the given current, and the dragging motor drives the wind driven generator to rotate at the given rotating speed through the connecting shaft device. According to the system, the operation safety and the test safety of the wind generating set are effectively improved, the test cost of the wind generating set is saved, and the reliability of the set is improved.
Description
Technical Field
The invention relates to the field of ring test of wind generating set hardware, in particular to a joint debugging test system of a wind generating set.
Background
The wind power generation technology is a main technical means for acquiring novel clean energy, the basic principle is that kinetic energy of wind is converted into electric energy through a wind power generator, the main implementation mode is that the wind power generator set converts the wind energy into mechanical work, the mechanical work is utilized to drive a rotor to rotate, and finally alternating current electric energy is output. In general, each component (such as a cabin, a generator, a hydraulic system, etc.) of the wind generating set is designed and tested independently, and when software control and communication development are completed on the whole installed component, the wind generating set is transported to a wind farm for debugging so as to ensure normal operation, but because the wind farm has wide regions and changeable environments, some limit working conditions cannot be simulated, and the wind generating set is debugged on site, so that the safety of staff cannot be ensured.
In order to solve the above problems, a test platform for testing sub-components of a wind turbine is built in the prior art, but the test platform does not consider the influence of the sub-components when the whole wind turbine is in operation, and therefore has a limitation in terms of test accuracy. In addition, in the prior art, a test model of a small-capacity wind generating set is also built, but the test model can only reflect the performance of the small-capacity wind generating set and cannot reflect the performance (such as the running characteristic and the like) of the large-capacity wind generating set, so that the test model has no wide applicability.
Disclosure of Invention
The embodiment of the invention provides a joint debugging test system of a wind generating set, which aims to overcome the defect that the existing test platform cannot conduct joint debugging test on the wind generating set with any power.
According to an exemplary embodiment of the present invention, there is provided a joint debugging test system of a wind turbine generator set, the joint debugging test system including: the wind power generator comprises a tested fan system, a fan dragging system, an upper computer and a connecting shaft device, wherein the tested fan system comprises a fan controller, a fan converter and a wind power generator, the fan dragging system comprises a dragging controller, a dragging converter and a dragging motor, the fan converter is connected with a power grid, the fan controller sends operation data under specific wind conditions to the upper computer, the upper computer determines a given rotating speed based on the operation data under the specific wind conditions and a simulated wind speed under the specific wind conditions, the given rotating speed is sent to the dragging converter through the dragging controller, the dragging converter determines given current equivalent to the given rotating speed, the dragging motor is controlled to rotate at the given rotating speed by utilizing the given current, the wind power generator is driven to rotate at the given rotating speed by the connecting shaft device, the operation data under the specific wind conditions comprise a real-time pitch position, a real-time yaw position and a machine side torque, the fan side torque refers to the fact that the fan controller sends the fan converter to the obtained torque to the wind power generator after the fan converter is controlled to the obtained torque according to the real torque requirement of the wind power generator.
Optionally, the operation data under the specific wind condition includes a real-time pitch position, a real-time yaw position and a machine side torque, wherein the machine side torque refers to a real torque obtained after the fan controller sends a torque demand to the fan converter, and the fan converter controls the wind driven generator to generate electricity according to the torque demand.
Optionally, the fan converter further determines a given current equivalent to the torque demand, and controls the wind driven generator to perform grid-connected power generation according to the given current.
Optionally, the tested fan system further comprises a pitch system and a yaw system, wherein the fan controller sends a pitch requirement to the pitch system, the pitch system operates based on the pitch requirement and feeds back a real-time pitch position to the fan controller, the fan controller further sends a yaw requirement to the yaw system, and the yaw system feeds back a real-time yaw position to the fan controller based on the yaw requirement.
Optionally, the joint debugging test system further comprises: and the power supply feedback device acquires energy from the fan converter and supplies power to the fan dragging system.
Optionally, the drag motor feeds back a machine side current to the drag current transformer, the drag current transformer determines a real rotating speed of the drag motor based on the machine side current and sends the real rotating speed to the upper computer, the upper computer determines a rotating speed deviation between the real rotating speed and the given rotating speed and determines whether a difference value between the rotating speed deviation and a preset deviation is larger than a preset threshold value, and when the rotating speed deviation is larger than the preset threshold value, the upper computer controls the fan drag system to stop.
Optionally, the joint debugging test system further comprises: the safety chain of the tested fan system and the safety chain of the fan dragging system comprise a fan converter safety sub-chain, the fan dragging system safety chain comprises a dragging converter safety sub-chain, the fan converter safety sub-chain comprises a plurality of fan converter fault nodes and a fan safety relay, the dragging converter safety sub-chain comprises dragging converter fault nodes and dragging safety relays corresponding to the fan converter fault nodes, the corresponding fan converter fault nodes and dragging converter fault nodes are connected in series with each other and then are connected to the fan safety relay and the dragging safety relay respectively, the fan safety relay is connected with the fan converter, the dragging safety relay is connected with the dragging converter, and when the fan converter fault nodes or the converter fault nodes are triggered, the fan safety relay and the dragging safety relay are triggered to be disconnected, so that the fan converter and the dragging converter are suddenly stopped.
Optionally, the tested fan system further comprises a wind driven generator cooling device and a fan converter cooling device, wherein the wind driven generator cooling device is used for keeping the temperature of the wind driven generator within a preset temperature range of the wind driven generator under the control of the fan controller, and the fan converter cooling device is used for keeping the temperature of the fan converter within the preset temperature range of the fan converter under the control of the fan controller; the fan dragging system further comprises a dragging motor cooling device and a dragging current transformer cooling device, wherein the dragging motor cooling device is used for enabling the temperature of the dragging motor to be kept within a preset temperature range of the dragging motor under the control of the dragging controller, and the dragging current transformer cooling device is used for enabling the temperature of the dragging current transformer to be kept within the preset temperature range of the dragging current transformer under the control of the dragging controller.
Optionally, the tested wind turbine system further comprises a nacelle communication system, wherein the wind turbine controller is in data interaction with at least one of the pitch system, the yaw system and the wind turbine converter via the nacelle communication system.
Optionally, the joint debugging test system is applied to execute any one of the following tests: the method comprises the steps of stopping test, full-power generation test, power limiting test, fault simulation test, matching test of a tested fan system and a control strategy, rotation speed following test, torque following test and communication running condition test of the tested fan system.
Optionally, the operation data under the specific wind condition further includes a real rotation speed of the wind driven generator, wherein when the joint debugging test system is applied to perform a start-stop test, the fan controller further obtains state data of the tested fan system under the specific wind condition, and performs the start-stop test based on the state data under the specific wind condition and the operation data under the specific wind condition, wherein the state data of the tested fan system includes the state data of the fan converter, the state data of the pitch system and the state data of the fan controller.
Optionally, the operation data under the specific wind condition further includes vibration data and temperature data of a nacelle where the tested fan system is located, where when the joint debugging test system is applied to perform the full-power generation test, the fan controller performs the full-power generation test based on the operation data under the specific wind condition.
In the joint debugging test system of the wind generating set according to the exemplary embodiment of the invention, the dragging motor is used for dragging the wind generating set to simulate the power generation condition of an actual wind generating set, so that the software and hardware of a tested wind generating set can be sufficiently tested and verified to solve corresponding problems (for example, when a certain test is failed, the problem can be solved before the wind generating set leaves a factory), and in addition, compared with field debugging, the operation safety and the test safety of the wind generating set are effectively improved because the real blade parts of the wind generating set are not involved in the test process, the test time is greatly shortened, and the reliability of the test cost of the wind generating set is saved.
Additional aspects and/or advantages of the present general inventive concept will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the general inventive concept.
Drawings
The foregoing and other objects of exemplary embodiments of the invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings which illustrate exemplary embodiments in which:
FIG. 1 illustrates a block diagram of a joint debugging test system of a wind turbine generator system according to an exemplary embodiment of the present invention;
FIG. 2 illustrates a block diagram of a joint debugging system of a wind turbine generator system according to another exemplary embodiment of the present invention;
fig. 3 shows a schematic view of a coupling device according to an exemplary embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The embodiments will be described below in order to explain the present invention by referring to the figures.
FIG. 1 illustrates a block diagram of a joint debugging test system of a wind turbine generator system according to an exemplary embodiment of the present invention.
Referring to fig. 1, a joint debugging test system of a wind power generation set according to an exemplary embodiment of the present invention includes: the system comprises a tested fan system 100, a fan dragging system 200, an upper computer 300 and a connecting shaft device 400, wherein the tested fan system 100 comprises a fan controller 110, a fan converter 120 and a fan generator 130; the fan drag system 200 includes a drag controller 210, a drag current transformer 220, and a drag motor 230, where the fan current transformer 120 is connected to the power grid.
Specifically, the joint debugging test system of the wind generating set according to the exemplary embodiment of the present invention has the following working principle: based on the virtual operation environment established by the upper computer 300, the fan dragging system 200 is enabled to simulate the operation of the impeller side, so that the components (such as the fan controller 110, the fan converter 120, the wind power generator 130, and the like) included in the tested fan system 100 realize the system joint debugging operation. Hereinafter, the operation principle of the joint debugging test system of the wind turbine generator set according to the exemplary embodiment of the present invention will be described in detail with reference to specific exemplary embodiments.
First, under the above connection relationship, the fan controller 110 transmits the working condition data under the specific wind condition to the upper computer 300. Here, the specific wind condition may be a highly realistic wind condition of the wind farm for simulation, such as a turbulent wind, a step wind, a custom wind, etc., given from a simulation application in the host computer 300. Specifically, the fan controller 110 acquires a specific wind condition from the host computer 300, and obtains the operating condition data under the specific wind condition based on the acquired specific wind condition.
As an example, the operation data under the specific wind condition may include a real-time pitch position, a real-time yaw position, and a machine side torque, where the machine side torque refers to a real torque obtained by the fan converter controlling the wind power generator to generate electricity according to the torque demand after the fan controller transmits the torque demand to the fan converter.
The fan controller 110 obtains the real-time pitch and yaw positions as follows:
in an alternative exemplary embodiment (this refers to the case where the constituent devices of the tested wind turbine system 100 except for the wind turbine 130 and the wind turbine converter 120 are virtual systems), specifically, after determining the specific wind condition, the wind turbine controller 110 may determine the pitch requirement, yaw requirement, and torque requirement according to the subsystem status and the initial rotational speed in the specific wind condition in the preset simulation model. The simulation model simulates an actual real-time pitch position based on pitch requirements and an actual real-time yaw position based on yaw requirements.
In another alternative exemplary embodiment, the tested wind turbine system 100 may further include a pitch system 140 and a yaw system 150 (as shown in fig. 2), specifically, after determining a specific wind condition, the wind turbine controller 110 may determine a next pitch requirement according to a preset simulation model and an initial position of the pitch system, and send the pitch requirement to the pitch system 140, and the pitch system 140 operates based on the pitch requirement and feeds back the pitch position to the wind turbine controller 110, and at the same time, the wind turbine controller 110 determines a yaw requirement according to the preset simulation model and sends the yaw requirement to the yaw system 150, and the yaw system 150 feeds back the real-time yaw position to the wind turbine controller 110 based on the yaw requirement.
After the fan controller 110 transmits the operation data (i.e., the real-time pitch position, the real-time yaw position, and the machine side torque) under the specific wind condition to the upper computer 300, the upper computer 300 determines a given rotational speed based on the operation data under the specific wind condition and the simulated wind speed under the specific wind condition, and transmits the given rotational speed to the drag converter 220 via the drag controller 210. The drag current transformer 220 determines a given current equivalent to a given rotation speed, and controls the drag motor 230 to rotate at the given rotation speed by using the given current, and the drag motor 230 drives the wind driven generator 130 to rotate at the given rotation speed through the coupling 400.
Specifically, fig. 3 illustrates a schematic view of a coupling 400 according to an exemplary embodiment of the present invention, and as illustrated in fig. 3, the coupling 400 may include a telescopic universal shaft 410, a first universal joint 420, and a second universal joint 430, wherein one end of the first universal joint 420 is connected to the wind power generator 130, the other end of the first universal joint 420 is connected to one end of the telescopic universal shaft 410, the other end of the telescopic universal shaft 410 is connected to one end of the second universal joint 430, and the other end of the second universal joint 430 is connected to the driving motor 230, as an example. Through the above connection, the dragging motor 230 may drive the wind-driven generator 130 to rotate at a given rotation speed through the telescopic universal shaft 410, the first universal joint 420 and the second universal joint 430, wherein the first universal joint 420 or the second universal joint 430 may be used to counteract the transmission torsional vibration caused by misalignment of the wind-driven generator 130 and the dragging motor 230, and the telescopic universal shaft 410 may be used to adjust the distance difference between the wind-driven generator 130 and the dragging motor 230.
Further, as an example, in the case where the wind power generator 130 rotates at a given rotational speed, the wind power converter 120 also determines a given current equivalent to the torque demand, and controls the wind power generator to perform grid-connected power generation at the given current.
Further, as an example, the joint debugging test system may further include a power supply feedback device 500, specifically, electricity generated by the wind power generator 130 is fed back to the power supply feedback device 500 through the fan converter 120, and power is supplied to the fan dragging system 200 together with energy obtained from the power grid.
In this way, the fan dragging system 200 can simulate the operation of the impeller side, and provide mechanical work for the tested fan system 100, so as to drive the wind driven generator rotor to rotate, and finally output ac power under the control of the fan controller 110.
As shown in FIG. 2, as an alternative exemplary embodiment, the tested wind turbine system 100 may additionally include a nacelle communication system 160, wherein the wind turbine controller 110 may interact data with at least one of the pitch system 140, the yaw system 150, and the wind turbine converter 120 via the nacelle communication system 160.
Moreover, as an alternative exemplary embodiment, the tested wind turbine system 100 further includes a wind turbine cooling device 170 and a wind turbine converter cooling device 180, wherein the wind turbine cooling device 170 is connected to the wind turbine 130, the wind turbine cooling device 170 is configured to maintain the temperature of the wind turbine 130 within a predetermined temperature range of the wind turbine under control of the wind turbine controller 110, the wind turbine converter cooling device 180 is connected to the wind turbine converter 120, and the wind turbine converter cooling device 180 is configured to maintain the temperature of the wind turbine converter 120 within a predetermined temperature range of the wind turbine converter under control of the wind turbine controller 110.
The fan drag system 200 may further include a drag motor cooling device 240 and a drag inverter cooling device 250, wherein the drag motor cooling device 240 is connected to the drag motor 230, the drag motor cooling device 240 is used for keeping the temperature of the drag motor 230 within a drag motor predetermined temperature range under all operating conditions under the control of the drag controller 210, the drag inverter cooling device 250 is connected to the drag inverter 220, and the drag inverter cooling device 250 is used for keeping the temperature of the drag inverter 220 within the drag inverter predetermined temperature range under all operating conditions under the control of the drag controller 210.
As an example, the above-described wind power generator predetermined temperature range, fan converter predetermined temperature range, traction motor predetermined temperature range, and traction converter predetermined temperature range may be factory-set or user-set temperature ranges.
On the other hand, the joint debugging test system may further have the functions of performing fault detection on the fan dragging system 200 and performing safety protection on the whole joint debugging test system.
Specifically, for the function of performing fault detection of the fan drag system 200, in an exemplary embodiment, a machine side current may be fed back to the drag inverter 220 by the drag motor 230 during rotation of the drag motor 230 at a given rotation speed, the drag inverter 220 determines a real rotation speed of the drag motor 230 based on the machine side current and transmits the real rotation speed to the upper computer 300, the upper computer 300 determines a rotation speed deviation between the real rotation speed and the given rotation speed, and determines whether a difference between the rotation speed deviation and the predetermined deviation is greater than a predetermined threshold, and when the rotation speed deviation is greater than the predetermined threshold, the upper computer 300 controls the fan drag system 200 to stop. In this way, it is possible to determine whether or not the motor 230 is failed at the time of simulation, effectively preventing a test error due to the fact that simulation and actual execution are not coincident in the following.
For the function of protecting the whole joint debugging test system, in an exemplary embodiment, the joint debugging system of the wind generating set may further be provided with a safety protection device, for example, the joint debugging test system may further include: the tested fan system safety chain 610 and the fan drag system safety chain 620, wherein the tested fan system safety chain 610 comprises a fan converter safety sub-chain, the fan drag system safety chain 620 comprises a drag converter safety sub-chain, wherein the fan converter safety sub-chain comprises a plurality of fan converter fault nodes and a fan safety relay, the drag converter safety sub-chain comprises a drag converter fault node and a drag safety relay corresponding to the fan converter fault node, the corresponding fan converter fault nodes and drag converter fault nodes are connected in series with each other and then are respectively connected to the fan safety relay and the drag safety relay, the fan safety relay and the fan converter are connected, the drag safety relay is connected with the drag converter, wherein when the fan converter fault node or the drag converter fault node is triggered, the fan safety relay and the drag safety relay are triggered to be disconnected so as to stop the fan converter 120 and the drag converter 220, and accordingly, the wind power generator 130, the pitch system 140, the drag motor 230 are disabled, and the yaw system 150 are disabled under the condition that the fan converter 120 and the drag converter 220 are stopped suddenly. In this way, when the fan converter 120 or the drag converter 220 fails, at least the fan converter 120 and the pitch system 140 in the tested fan system 100 are suddenly stopped, the yaw system 150 is forbidden to yaw, the drag converter 220 and the drag motor 230 in the fan drag system 200 are suddenly stopped, in this way, the danger (for example, the danger is embodied in that after the drag converter fails to suddenly stop, the given rotation speed is quickly changed to zero) caused by that the drag converter 220 and the drag motor 230 are suddenly stopped and the tested fan system 100 is still in a power generation state can be prevented, or the real rotation speed of the fan drag system 200 can be prevented from being increased when the fan converter 120 in the tested fan system 100 fails (for example, the load is thrown), and then the current of the drag motor 230 is controlled by the converter 220 according to the change of the real rotation speed, so that the power of the drag motor 230 is reduced, and the danger is caused can be prevented. It can be seen that the safety chain 610 and the safety chain 620 of the tested fan system can ensure the safety of the joint debugging test system.
In addition, in the normal operation process of the joint debugging test system, the joint debugging test system of the wind generating set can be used for executing any one of the following tests: the method comprises the steps of stopping test, full-power generation test, power limiting test, fault simulation test, matching test of a tested fan system and a control strategy, rotation speed following test, torque following test and communication running condition test of the tested fan system. For example, the joint debugging test system of the wind generating set can realize the full power test of the wind generating set with the capacity of 6MW and below.
Specifically, in an exemplary embodiment, the operation data under the specific wind condition may further include a real rotation speed of the wind turbine 130, wherein when the start-stop test is performed by using the joint debugging test system of the wind turbine, the fan controller 110 may further obtain the state data of the tested fan system 100 under the specific wind condition, and perform the start-stop test based on the state data under the specific wind condition and the operation data under the specific wind condition, wherein the state data of the tested fan system 100 includes the state data of the fan converter 120, the state data of the pitch system 140, and the state data of the fan controller 110.
For example, when the fan converter 120 is subjected to the start-up logic test, the real rotation speed of the wind turbine 130 and the state data of the fan converter 120 may be obtained in real time, for example, the state data of the fan converter 120 is: the fan converter 120 is in a shutdown state, the fan converter 120 is in a standby state, the fan converter 120 is in an acceleration state and the fan converter 120 is in a power generation state, and the corresponding relation between the real rotating speed of the wind driven generator 130 and the state data of the fan converter 120, which is acquired by the fan controller 110, is as follows: in the standby state-A1 rotation/second, the acceleration state-A2 rotation/second and the power generation state-A3 rotation/second, whether the real rotation speed in the current state is qualified or not can be determined by comparing the real rotation speed in the current state with the corresponding preset rotation speed threshold value in real time, for example, comparing the value of A1 rotation/second with the first rotation speed threshold value, and when the value of A1 rotation/second is larger than the first rotation speed threshold value, determining that the rotation speed of the fan converter 120 in the standby state is qualified; next, comparing the rotation speed of the fan converter 120 with the second rotation speed threshold value, and determining that the rotation speed of the fan converter 120 in the acceleration state is qualified when the rotation speed of the fan converter is greater than the second rotation speed threshold value; next, comparing the value of A3 rpm with a third rpm threshold, when A3 rpm is greater than the third rpm threshold, determining that the rpm of the fan converter 120 in the power generation state is acceptable, and determining that the fan converter 120 has normal start-up logic when the above three conditions (i.e., when the rpm of the fan converter 120 in the standby state, the acceleration state, and the power generation state are all acceptable) are satisfied, otherwise, determining that the fan converter 120 has wrong start-up logic when at least one condition is not satisfied.
Further, it should be understood by those skilled in the art that the start-stop logic of any component included in the tested fan system 100 may be tested in any manner known in the art, and the present invention is not limited in this regard.
Moreover, in another exemplary embodiment, the operational data under the specific wind conditions further includes vibration data and temperature data of the nacelle where the tested wind turbine system is located, wherein when the full power generation test is performed by applying the joint debugging test system of the wind turbine generator set, the wind turbine controller 110 performs the full power generation test based on the operational data under the specific wind conditions.
For example, when the fan controller 110 obtains the temperature data of the nacelle where the tested fan system 100 is located, it may be determined by any existing method whether the temperature of the nacelle where the tested fan system 100 is located reaches a steady state within a predetermined time, and when the temperature reaches the steady state, it is determined that the temperature test of the nacelle where the tested fan system 100 is located is qualified.
In addition, those skilled in the art will appreciate that other data in the tested fan system 100 may be detected using prior art techniques, and the present invention is not illustrated herein.
By the mode, the software and hardware of the tested fan system can be fully tested and verified through the joint debugging test system of the wind generating set.
In summary, according to the joint debugging test system of the wind turbine generator system according to the exemplary embodiment of the invention, the dragging motor is used for dragging the wind turbine generator to simulate the power generation condition of the actual wind turbine generator, so that the software and hardware of the tested wind turbine generator system can be sufficiently tested and verified to solve corresponding problems (for example, when a certain test is failed, the problem can be solved before the wind turbine generator system leaves a factory), and in addition, compared with field debugging, the operation safety and the test safety of the wind turbine generator system are effectively improved because the real unit blade component is not involved in the test process, the test time is greatly shortened, and the reliability of the test cost of the wind turbine generator system is ensured.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
Claims (11)
1. A joint debugging test system for a wind generating set, the joint debugging test system comprising: a tested fan system, a fan dragging system, an upper computer and a connecting shaft device,
wherein the tested fan system comprises a fan controller, a fan converter and a fan generator, the fan dragging system comprises a dragging controller, a dragging converter and a dragging motor, the fan converter is connected with a power grid,
wherein the fan controller sends the operation data under the specific wind condition to the upper computer, the upper computer determines a given rotating speed based on the operation data under the specific wind condition and the simulated wind speed under the specific wind condition, and sends the given rotating speed to the dragging converter through the dragging controller,
the dragging current transformer determines a given current equivalent to the given rotating speed, the dragging motor is controlled to rotate at the given rotating speed by utilizing the given current, the dragging motor drives the wind driven generator to rotate at the given rotating speed through the connecting shaft device,
wherein the dragging motor feeds back the machine side current to the dragging current transformer, the dragging current transformer determines the real rotating speed of the dragging motor based on the machine side current and sends the real rotating speed to the upper computer,
and the upper computer determines the rotating speed deviation between the real rotating speed and the given rotating speed, determines whether the difference value between the rotating speed deviation and the preset deviation is larger than a preset threshold value, and controls the fan dragging system to stop when the rotating speed deviation is larger than the preset threshold value.
2. The joint debugging test system of claim 1, wherein the operational data for the specific wind condition comprises a real-time pitch position, a real-time yaw position, and a machine side torque, wherein the machine side torque is a real torque obtained by the fan converter after the fan controller sends a torque demand to the fan converter, and the fan converter controls the wind power generator to generate power according to the torque demand.
3. The joint debugging test system of claim 1, wherein the fan converter further determines a given current equivalent to the torque demand and controls the wind generator to grid-tie the power generation according to the determined given current equivalent to the torque demand.
4. The joint debugging test system of claim 1, wherein the tested fan system further comprises a pitch system and a yaw system,
wherein the fan controller sends a pitch demand to the pitch system, the pitch system operates based on the pitch demand and feeds back a real-time pitch position to the fan controller,
the fan controller also sends a yaw demand to the yaw system, which feeds back a real-time yaw position to the fan controller based on the yaw demand.
5. The joint debugging test system of claim 1, wherein the joint debugging test system further comprises: a power supply feedback device,
the power supply feedback device acquires energy from the fan converter and supplies power to the fan dragging system.
6. The joint debugging test system of claim 1, wherein the joint debugging test system further comprises: the tested fan system safety chain and the fan dragging system safety chain,
wherein the tested fan system safety chain comprises a fan converter safety sub-chain, the fan dragging system safety chain comprises a dragging converter safety sub-chain,
wherein the fan converter safety sub-chain comprises a plurality of fan converter fault nodes and a fan safety relay, the dragging converter safety sub-chain comprises dragging converter fault nodes and dragging safety relays corresponding to the fan converter fault nodes,
wherein after the corresponding fan converter fault node and the dragging converter fault node are mutually connected in series, the fan converter fault node and the dragging converter fault node are respectively connected to the fan safety relay and the dragging safety relay, the fan safety relay is connected with the fan converter, the dragging safety relay is connected with the dragging converter,
when the fan converter fault node or the dragging converter fault node is triggered, the fan safety relay and the dragging safety relay are triggered to be disconnected, so that the fan converter and the dragging converter are suddenly stopped.
7. The joint debugging test system of claim 1, wherein the tested fan system further comprises a wind generator cooling device and a fan converter cooling device,
the fan converter cooling device is used for keeping the temperature of the fan converter in a preset temperature range of the fan converter under the control of the fan controller;
the fan dragging system also comprises a dragging motor cooling device and a dragging converter cooling device,
the dragging motor cooling device is used for enabling the temperature of the dragging motor to be kept within a preset temperature range of the dragging motor under the control of the dragging controller, and the dragging current transformer cooling device is used for enabling the temperature of the dragging current transformer to be kept within the preset temperature range of the dragging current transformer under the control of the dragging controller.
8. The joint debugging test system of claim 4, wherein the tested fan system further comprises a nacelle communication system,
wherein the fan controller is in data interaction with at least one of the pitch system, yaw system, and fan converter via the nacelle communication system.
9. The joint debugging test system of any one of claims 1-8, wherein the joint debugging test system is applied to perform any one of the following tests:
the method comprises the steps of stopping test, full-power generation test, power limiting test, fault simulation test, matching test of a tested fan system and a control strategy, rotation speed following test, torque following test and communication running condition test of the tested fan system.
10. The joint debugging test system according to claim 4, wherein the operation data under the specific wind condition further comprises a true rotational speed of the wind driven generator, wherein when the start-stop test is performed by applying the joint debugging test system, the fan controller further acquires the state data of the tested fan system under the specific wind condition, and performs the start-stop test based on the state data under the specific wind condition and the operation data under the specific wind condition,
the state data of the tested fan system comprises the state data of the fan converter, the state data of the variable pitch system and the state data of the fan controller.
11. The joint debugging test system of claim 9, wherein the operation data under specific wind conditions further comprises vibration data and temperature data of a cabin in which the tested fan system is positioned,
when the joint debugging test system is used for executing the full-power generation test, the fan controller is used for executing the full-power generation test based on the operation data under the specific wind condition.
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