CN111120224B - Testing device and testing method for safety protection system of wind turbine generator - Google Patents
Testing device and testing method for safety protection system of wind turbine generator Download PDFInfo
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- CN111120224B CN111120224B CN201911376894.3A CN201911376894A CN111120224B CN 111120224 B CN111120224 B CN 111120224B CN 201911376894 A CN201911376894 A CN 201911376894A CN 111120224 B CN111120224 B CN 111120224B
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- 238000012360 testing method Methods 0.000 title claims abstract description 86
- 230000009471 action Effects 0.000 claims abstract description 40
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000004044 response Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 3
- 238000007405 data analysis Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003750 conditioning effect Effects 0.000 description 9
- 238000004088 simulation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
A testing device and a testing method for a safety protection system of a wind turbine belong to the field of wind turbine protection, and are characterized in that: the system comprises a control terminal, a signal generation subsystem, a signal acquisition subsystem, a unit safety chain or PLC and a unit protection action element; the control terminal, the signal generation subsystem and the unit safety chain or the PLC are electrically connected in sequence; the unit safety chain or the PLC is electrically connected with the unit protection action element; the unit protection action element, the signal acquisition subsystem and the control terminal are electrically connected in sequence. Has the following technical effects: multiple safety protection test items can be automatically finished in sequence without developing single tests one by one, so that the test efficiency is improved; a fixed value protection test can be carried out; by configuring model parameter files, the method can adapt to the signal characteristics of different models; the signal time sequence curve can be acquired and recorded in real time, so that data analysis is facilitated; in the testing process, the fan is not required to be in a rotary running state, and the safety of testers is ensured.
Description
Technical Field
The invention belongs to the field of wind turbine generator protection, and particularly relates to a testing device and a testing method for a wind turbine generator safety protection system.
Background
The safety protection system of the wind turbine generator, in particular the safety chain, is the last protection barrier for the safety of the fan. When the wind turbine generator system has an emergency, the safety chain is triggered, and the fan executes emergency blade-out to realize safe shutdown, so that safety of field personnel and fan equipment is ensured. Therefore, the effectiveness of the fan safety protection system is tested regularly, and the fan safety protection system is very important to the safe operation of fan equipment. However, at present, a wind farm generally adopts modes of checking line numbers or opening and closing switches to check safety chains, and the method has the following defects: firstly, it is difficult to check a complete loop; secondly, constant value protection such as overspeed protection cannot be effectively detected; thirdly, the conventional detection method needs to manually operate each protection item by item, has low test efficiency, and cannot adapt to the characteristic of large number of wind power plant units; fourth, the conventional security chain detection method is limited to the same model, and different detection schemes are required to be formulated for different models; fifth, the conventional method cannot detect the guard action time. Therefore, it is needed to provide a testing device and a testing method for a safety protection system of a wind turbine generator, which are efficient, safe, effective and general.
Disclosure of Invention
The invention aims to solve the problems and provides a universal testing device and a testing method for a safety protection system of a wind turbine generator.
The invention relates to a testing device for a safety protection system of a wind turbine, which comprises a control terminal, a signal generation subsystem, a signal acquisition subsystem, a turbine safety chain or a PLC and a turbine protection action element; the control terminal, the signal generation subsystem and the unit safety chain or the PLC are electrically connected in sequence; the unit safety chain or the PLC is electrically connected with the unit protection action element; the unit protection action element, the signal acquisition subsystem and the control terminal are electrically connected in sequence. The signal generation subsystem is used for simulating and outputting various fault trigger signals of the wind turbine generator, including digital quantity and analog quantity; the signal acquisition subsystem is used for acquiring a state signal of the unit and a protection action signal of the unit after fault triggering; the control terminal is used for machine type file configuration, test item and parameter selection, test curve drawing display and the like, and meanwhile, logic judgment is carried out on the collected unit protection action signals, and a next simulated fault sequence is output according to a judgment result and is sent to the signal generation subsystem; the unit safety chain or the PLC is a test object of the tested unit and receives a fault simulation signal from the test device; the unit protection action element is a fault response action element of the unit to be tested and reflects the fault response state of the unit.
Further, the wind turbine generator system safety protection system testing device provided by the invention comprises a signal generator output unit and a signal amplifying circuit; the output end of the signal generator output unit is electrically connected with the unit safety chain or the PLC through a signal amplifying circuit; the output end of the signal generator output unit is electrically connected with the unit safety chain or the PLC; the input end of the signal generator output unit is electrically connected with the control terminal. The signal generator output unit is used for converting the simulated fault sequence instruction from the control terminal into a simulated fault sequence electric signal; the signal amplifying circuit is used for converting standard electric signals of the simulated fault sequence into electric signals of different grades so as to adapt to the characteristics of different units.
Further, the testing device of the wind turbine generator system safety protection system provided by the invention comprises a signal conditioning circuit and a multichannel sampling device; the output end of the signal conditioning circuit is electrically connected with the input end of the multichannel sampling device; the input end of the signal conditioning circuit is electrically connected with the unit protection action element; the output end of the multichannel sampling device is electrically connected with the control terminal. The signal conditioning circuit is used for converting a state signal of the unit protection action element into a signal which can be used by the acquisition device; the multichannel acquisition device is used for acquiring the protection action state of the unit, feeding back the protection action state to the control terminal in real time, and carrying out logic judgment and sending out a corresponding simulation fault sequence by the control terminal.
According to the testing method of the wind turbine generator safety protection system, the control terminal is used for carrying out parameter configuration and test item selection of the wind turbine generator, and then testing is started; the control terminal sends a fault signal simulating instruction to the signal generating subsystem; the signal generation subsystem converts the simulated fault instruction into a simulated fault signal and sends the simulated fault signal to a cabin safety chain or a PLC; after the cabin safety chain or the PLC receives the simulated fault signal, the unit protection action element is controlled to respond to the simulated fault; the signal acquisition subsystem acquires the state of a unit protection action element in real time and feeds back the fault response state of the unit to the control terminal; the control terminal carries out protection action logic judgment on the response condition of the unit and sends out corresponding signals; after one test is completed, the control terminal automatically and orderly performs the next protection test until all items to be tested are completed.
Furthermore, according to the testing method of the wind turbine generator system safety protection system, the control terminal is internally provided with the model parameter file and the test item list for testing.
Furthermore, according to the test method for the safety protection system of the wind turbine generator, the control terminal can draw the test curve according to the judgment result of the protection action logic.
Furthermore, according to the testing method of the wind turbine generator safety protection system, the test item list comprises main shaft overspeed protection, generator overspeed protection, cabin vibration overrun protection, cable twisting protection, watchdog or PLC heartbeat protection, variable pitch safety chain fault protection, gear box temperature protection and generator temperature protection.
The testing device and the testing method for the safety protection system of the wind turbine generator have the following technical effects: firstly, multiple safety protection test items can be automatically finished in sequence without developing single tests one by one, so that the test efficiency is improved; secondly, constant protection tests, such as overspeed protection constant value tests, can be carried out; thirdly, signal characteristics of different models can be adapted by configuring model parameter files; fourth, can gather and record the signal time sequence curve in real time, facilitate the data analysis; fifth, the fan is not required to be in a rotary running state in the testing process, so that the safety of testing personnel is ensured.
Drawings
FIG. 1 is a schematic block diagram of a test device of a wind turbine safety protection system according to the present invention;
FIG. 2 is a block diagram of an embodiment of a testing device for a safety protection system of a wind turbine according to the present invention;
FIG. 3 is a block diagram of one embodiment of a signal generation subsystem according to the present invention;
FIG. 4 is a block diagram of one embodiment of a signal acquisition subsystem according to the present invention;
FIG. 5 is a logic flow diagram of a method for testing a safety protection system of a wind turbine according to the present invention;
the system comprises a 110-signal generating subsystem, a 111-signal generator output unit, a 112-signal amplifying circuit, a 120-signal acquisition subsystem, a 121-multichannel acquisition device, a 122-signal conditioning circuit, a 130-control terminal, a 131-simulation fault sequence, a 132-protection action logic judgment, a 133-model parameter file, a 134-test item selection, a 135-test curve drawing, a 200-unit safety chain or PLC and a 300-unit protection action element.
Detailed Description
The test device and the test method of the wind turbine generator safety protection system are described in detail below through the drawings and the embodiments.
The invention relates to a testing device for a safety protection system of a wind turbine, which is shown in figure 1 and comprises a control terminal 130, a signal generation subsystem 110, a signal acquisition subsystem 120, a turbine safety chain or PLC 200 and a turbine protection action element 300; the control terminal 130 is electrically connected with the signal generation subsystem 110 and the signal acquisition subsystem 120, and the signal generation subsystem 110 is electrically connected with a unit safety chain or a PLC 200 node; the signal acquisition subsystem 120 is electrically connected to the unit protection action element 300 node. As shown in fig. 2, the control terminal 130 includes a PC and a supporting test program, and main functions include a configuration 133 of a unit parameter file, a selection 134 of a test item, a drawing 135 of a test curve, a logic judgment 131 of a protection action, and an output 132 of a simulated fault sequence; the signal generating subsystem 110 includes a signal generator output unit 111 and a signal amplifying circuit 112; the control terminal 130, the signal generator output unit 111, the signal amplifying circuit 112, the unit safety chain or the PLC 200 are sequentially connected; the signal acquisition subsystem 120 includes a multi-channel acquisition device 121 and a signal conditioning circuit 122; the unit protection action element 300, the signal conditioning circuit 122, the multi-channel acquisition device 121 and the control terminal 130 are sequentially connected.
The control terminal 130 is used for machine type file configuration, test item and parameter selection, test curve drawing and displaying, and the like, and meanwhile, carries out logic judgment on the unit protection action signals collected by the multi-channel collection device 121, outputs the next simulated fault sequence according to the judgment result, and sends the next simulated fault sequence to the signal generation subsystem 110. The signal generating subsystem 110 shown in fig. 1 and 3 includes a signal generator output unit 111 and a signal amplifying circuit 112; a signal generator output unit 111 for converting the simulated fault sequence instruction from the control terminal 130 into a simulated fault sequence electrical signal; the signal amplifying circuit 112 is used for converting the standard electrical signal of the simulated fault sequence into electrical signals of different grades so as to adapt to the characteristics of different units.
The signal acquisition subsystem 120 as shown in fig. 1 and 4 comprises a multi-channel acquisition device 121 and a signal conditioning circuit 122; the multi-channel acquisition device 121 is used for acquiring the unit protection action state and feeding back the unit protection action state to the control terminal 130 in real time; the signal conditioning circuit 122 is configured to convert the status signal of the unit protection action element 300 into a signal usable by the multi-channel acquisition device 121.
As shown in fig. 5, in this embodiment, an overspeed protection and cable twisting protection test is taken as an example to describe a test method of a wind turbine generator system safety protection system according to the present invention.
In the test process, the wind turbine generator is always in a maintenance state;
firstly, configuring model parameters, and then carrying out various protection tests item by item;
the overspeed protection test is carried out, the wind turbine generator safety protection system testing device sends a reset signal to the cabin safety chain or the PLC 200 through the control terminal 130, the reset state of the wind turbine generator is detected through the generator set protection action element 300, if the reset is successful, the rotation speed simulation signal is applied, and if the reset is unsuccessful, the reset is continued until the reset is successful; after the rotation speed simulation signal is applied, if the machine set is triggered to stop, a protection fixed value and a machine set action condition are recorded, the next cable twisting protection test is automatically carried out, if the machine set is not stopped, whether the rotation speed exceeds the protection fixed value is judged, if the rotation speed exceeds the protection fixed value, the protection fixed value and the machine set action condition are recorded, if the rotation speed exceeds the protection fixed value, the rotation speed signal frequency is increased, the test is continued until the rotation speed simulation signal exceeds the protection fixed value, the overspeed protection test is completed, and then the next cable twisting protection test is automatically carried out.
The torsion cable protection test is carried out, the wind turbine generator safety protection system test device sends a reset signal to the cabin safety chain or the PLC 200 through the control terminal 130, the reset state of the wind turbine generator is detected through the generator set protection action element 300, if the reset is successful, a torsion cable fault simulation signal is started to be applied, and if the reset is unsuccessful, the reset is continued until the reset is successful; after the cable twisting fault simulation signal is applied, if the machine set is triggered to stop, the cable twisting protection is normal, if the machine set cannot be triggered to stop, the cable twisting protection is abnormal, the data is recorded, and the next protection test is carried out; after all protection tests are automatically completed item by item, the wind turbine generator safety protection system testing device generates a testing result, and the test is completed.
Claims (4)
1. A testing method of a wind turbine generator safety protection system comprises a wind turbine generator safety protection system testing device; the testing device comprises a control terminal, a signal generation subsystem, a signal acquisition subsystem, a unit safety chain or a PLC and a unit protection action element; the control terminal, the signal generation subsystem and the unit safety chain or the PLC are electrically connected in sequence; the unit safety chain or the PLC is electrically connected with the unit protection action element; the unit protection action element, the signal acquisition subsystem and the control terminal are electrically connected in sequence; the method is characterized in that: carrying out parameter configuration and test item selection of the wind turbine generator through a control terminal, and then starting a test; the control terminal sends a fault signal simulating instruction to the signal generating subsystem; the signal generation subsystem converts the simulated fault instruction into a simulated fault signal and sends the simulated fault signal to a cabin safety chain or a PLC; after the cabin safety chain or the PLC receives the simulated fault signal, the unit protection action element is controlled to respond to the simulated fault; the signal acquisition subsystem acquires the state of a unit protection action element in real time and feeds back the fault response state of the unit to the control terminal; the control terminal carries out protection action logic judgment on the response condition of the unit and sends out corresponding signals; after one test is completed, the control terminal automatically and orderly performs the next protection test until all items to be tested are completed.
2. The method for testing the safety protection system of the wind turbine generator according to claim 1, wherein the method comprises the following steps of: and the control terminal is internally provided with a model parameter file and a test item list for testing.
3. The method for testing the safety protection system of the wind turbine generator according to claim 2, wherein the method comprises the following steps of: the control terminal can draw a test curve according to the judgment result of the protection action logic.
4. The method for testing the safety protection system of the wind turbine generator system according to claim 3, wherein the method comprises the following steps of: the test item list comprises a main shaft overspeed protection, a generator overspeed protection, a cabin vibration overrun protection, a cable twisting protection, a watchdog or PLC heartbeat protection, a variable pitch safety chain fault protection, a gear box temperature protection and a generator temperature protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376894.3A CN111120224B (en) | 2019-12-27 | 2019-12-27 | Testing device and testing method for safety protection system of wind turbine generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911376894.3A CN111120224B (en) | 2019-12-27 | 2019-12-27 | Testing device and testing method for safety protection system of wind turbine generator |
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| CN111120224A CN111120224A (en) | 2020-05-08 |
| CN111120224B true CN111120224B (en) | 2024-02-20 |
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