CN211924389U - Wind turbine generator system safety protection system testing arrangement - Google Patents
Wind turbine generator system safety protection system testing arrangement Download PDFInfo
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- CN211924389U CN211924389U CN201922404542.6U CN201922404542U CN211924389U CN 211924389 U CN211924389 U CN 211924389U CN 201922404542 U CN201922404542 U CN 201922404542U CN 211924389 U CN211924389 U CN 211924389U
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Abstract
The utility model provides a wind turbine generator system safety protection system testing arrangement, belongs to wind turbine generator system protection field, its 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. The method has the following technical effects: a plurality of safety protection test items can be automatically and sequentially completed without carrying out single tests one by one, so that the test efficiency is improved; a constant value protection test can be performed; the signal characteristics of different machine types can be adapted by configuring the machine type parameter file; the signal time sequence curve can be collected and recorded in real time, and data analysis is facilitated; in the test process, the fan is not required to be in a rotating operation state, and the safety of testers is ensured.
Description
Technical Field
The utility model belongs to wind turbine generator system protection field especially relates to a wind turbine generator system safety protection system testing arrangement.
Background
The safety protection system of the wind turbine generator, especially the safety chain, is the final protective barrier for the safety of the fan. When the wind turbine generator system is in emergency, the safety chain is triggered, and the fan performs emergency propeller retracting to realize safe shutdown, so that the safety of field personnel and fan equipment is guaranteed. Therefore, the effectiveness of the fan safety protection system is tested regularly, and the fan safety protection system is very important for the safe operation of fan equipment. However, currently, wind farms generally adopt modes such as checking line numbers or switching on and off switches to check safety chains, and the method has the following disadvantages: first, it is difficult to verify a complete loop; secondly, fixed value protection such as overspeed protection cannot be effectively detected; thirdly, the conventional detection method needs manual operation on each protection item by item, has low test efficiency and cannot adapt to the characteristic of large number of units in the wind power plant; fourthly, the conventional safety chain detection method is only limited to the same machine type, and different detection schemes need to be formulated for different machine types; fifth, the conventional method cannot detect the guard action time. Therefore, it is necessary to provide an efficient, safe, effective and universal testing device and testing method for a wind turbine generator safety protection system.
Disclosure of Invention
The utility model aims at solving the above problem, a general wind turbine generator system safety protection system testing arrangement is provided.
The utility model discloses a wind turbine generator system safety protection system testing device, which 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 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 unit state signal and a protection action signal of the unit after fault triggering; the control terminal is used for model file configuration, test item and parameter selection, test curve drawing and displaying and the like, and meanwhile, the logic judgment is carried out on the collected unit protection action signals, and a next simulation fault sequence is output according to the judgment result and is sent to the signal generation subsystem; the unit safety chain or the PLC is a test object of the unit to be tested and receives a fault simulation signal from the test device; the unit protection action element is a fault response action element of the tested unit and reflects the fault response state of the unit.
Further, the utility model discloses a wind turbine generator system safety protection system testing arrangement, the signal generation subsystem includes signal generator output unit and signal amplification 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; and 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 simulation fault sequence instruction from the control terminal into a simulation fault sequence electric signal; the signal amplification circuit is used for converting the 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 utility model discloses a wind turbine generator system safety protection system testing arrangement, the signal acquisition subsystem includes signal conditioning circuit and multichannel sampling device; the output end of the signal conditioning circuit is electrically connected with the input end of the multi-channel sampling device; the input end of the signal conditioning circuit is electrically connected with the unit protection action element; and the output end of the multi-channel sampling device is electrically connected with the control terminal. The signal conditioning circuit is used for converting the state signal of the unit protection action element into a signal available for the acquisition device; the multi-channel acquisition device is used for acquiring the protection action state of the unit, feeding the protection action state back to the control terminal in real time, and carrying out logic judgment and sending out a corresponding simulation fault sequence by the control terminal.
By adopting the testing method of the testing device of the wind turbine generator safety protection system, the parameter configuration and the test item selection of the wind turbine generator are carried out through the control terminal, and then the testing is started; the control terminal sends a simulation fault signal instruction to the signal generation subsystem; the signal generation subsystem converts the simulation fault instruction into a simulation fault signal and sends the simulation fault signal to an engine room safety chain or a PLC; after the cabin safety chain or the PLC receives the simulation fault signal, the protection action element of the control unit responds to the simulation fault; the signal acquisition subsystem acquires the state of the protection action element of the unit 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 a corresponding signal; after one test is finished, the control terminal automatically carries out the next protection test in sequence until all items to be tested are finished. 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.
Wind turbine generator system safety protection system testing arrangement has following technological effect: firstly, a plurality of safety protection test items can be automatically and sequentially completed without carrying out single tests one by one, so that the test efficiency is improved; secondly, a fixed value protection test can be carried out, such as an overspeed protection fixed value test; thirdly, the signal characteristics of different types can be adapted by configuring the type parameter file; fourthly, a signal time sequence curve can be collected and recorded in real time, so that data analysis is facilitated; fifthly, the fan is not required to be in a rotating running state in the testing process, and the safety of testing personnel is guaranteed.
Drawings
FIG. 1 is a schematic block diagram of a testing device for a safety protection system of a wind turbine generator system according to the present invention;
fig. 2 is a structural diagram of an embodiment of the testing device for the safety protection system of the wind turbine generator system according to the present invention;
FIG. 3 is a block diagram of an embodiment of the signal generation subsystem of the present invention;
fig. 4 is a structural diagram of an embodiment of the signal acquisition subsystem according to the present invention;
FIG. 5 is a logic flow diagram of a testing method for a safety protection system of a wind turbine generator system according to the present invention;
the system comprises a signal generation subsystem 110, a signal generator output unit 111, a signal amplification circuit 112, a signal acquisition subsystem 120, a multichannel acquisition device 121, a signal conditioning circuit 122, a control terminal 130, a fault simulation sequence 131, a protection action logic judgment 132, a model parameter file 133, a test item selection 134, a test curve drawing 135, a unit safety chain 200 or a PLC, and a unit protection action element 300.
Detailed Description
It is right below through attached drawings and embodiment the utility model discloses wind turbine generator system safety protection system testing arrangement explains in detail.
The utility model discloses a wind turbine generator system safety protection system testing device, as shown in fig. 1, includes control terminal 130, signal generation subsystem 110, signal acquisition subsystem 120, unit safety chain or PLC 200, unit protection action component 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 with the unit protection action element 300 node. As shown in fig. 2, the control terminal 130 includes a PC and a matching test program, and the main functions include configuration of unit parameter files 133, selection of test items 134, drawing of test curves 135, logic judgment 131 of protection actions, output of simulated fault sequences 132, and the like; the signal generation subsystem 110 includes a signal generator output unit 111 and a signal amplification circuit 112; the control terminal 130, the signal generator output unit 111, the signal amplifying circuit 112 and the unit safety chain or the PLC 200 are connected in sequence; the signal acquisition subsystem 120 comprises 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 connected in sequence.
And the control terminal 130 is used for configuring a model file, selecting a test item and a test parameter, drawing and displaying a test curve and the like, and meanwhile, logically judges the unit protection action signals acquired by the multi-channel acquisition device 121, outputs a next simulation fault sequence according to a judgment result, and sends the next simulation fault sequence to the signal generation subsystem 110. The signal generation subsystem 110 shown in fig. 1 and 3 includes a signal generator output unit 111 and a signal amplification circuit 112; a signal generator output unit 111, configured to convert the analog fault sequence command from the control terminal 130 into an analog fault sequence electrical signal; and the signal amplification circuit 112 is used for converting the standard electric signal of the analog fault sequence into electric signals of different grades so as to adapt to the characteristics of different units.
As shown in fig. 1 and 4, the signal acquisition subsystem 120 includes a multi-channel acquisition device 121 and a signal conditioning circuit 122; the multi-channel acquisition device 121 is used for acquiring the protection action state of the unit and feeding the protection action state back to the control terminal 130 in real time; and the signal conditioning circuit 122 is configured to convert the state signal of the unit protection action element 300 into a signal that is usable by the multi-channel acquisition device 121.
As shown in fig. 5, the overspeed protection and cable twisting protection test are taken as examples in this embodiment to explain the test method of the wind turbine generator safety protection system.
In the test process, the wind turbine generator is always in a maintenance state;
firstly, configuring model parameters, and then developing various protection tests item by item;
the method comprises the following steps of (1) carrying out overspeed protection test, wherein a wind turbine generator safety protection system test device sends a reset signal to a cabin safety chain or a PLC 200 through a control terminal 130, simultaneously detects the reset state of a turbine through a turbine generator protection action element 300, starts to apply a rotating speed simulation signal if the reset is successful, and continues to reset until the reset is successful if the reset is unsuccessful; after a rotating speed analog signal is applied, if the unit is triggered to stop, recording a protection fixed value and a unit action condition, and automatically performing the next cable twisting protection test, if the unit is not stopped, judging whether the rotating speed exceeds the protection fixed value, if the rotating speed exceeds the protection fixed value, recording the protection fixed value and the unit action condition, if the rotating speed does not exceed the protection fixed value, increasing the frequency of the rotating speed signal to continue the test, until the rotating speed analog signal exceeds the protection fixed value, completing the overspeed protection test, and then automatically entering the next cable twisting protection test.
A twisting cable protection test is carried out, wherein a wind turbine generator safety protection system test device sends a reset signal to a cabin safety chain or a PLC 200 through a control terminal 130, simultaneously detects the reset state of a generator through a generator protection action element 300, if the reset is successful, a twisting cable fault simulation signal is applied, and if the reset is unsuccessful, the reset is continued until the reset is successful; after a cable twisting fault simulation signal is applied, if a unit is triggered to stop, cable twisting protection is normal, if the unit cannot be triggered to stop, the cable twisting protection is abnormal, data are recorded, and a next protection test is carried out; after all protection tests are automatically completed item by item, the testing device of the wind turbine generator safety protection system generates a testing result, and the testing is completed.
Claims (3)
1. The utility model provides a wind turbine generator system safety protection system testing arrangement which 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.
2. The wind turbine generator safety protection system testing device according to claim 1, characterized in that: the signal generation subsystem comprises a signal generator output unit and a signal amplification 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; and the input end of the signal generator output unit is electrically connected with the control terminal.
3. The wind turbine generator safety protection system testing device according to claim 2, characterized in that: the signal acquisition subsystem comprises a signal conditioning circuit and a multi-channel sampling device; the output end of the signal conditioning circuit is electrically connected with the input end of the multi-channel sampling device; the input end of the signal conditioning circuit is electrically connected with the unit protection action element; and the output end of the multi-channel sampling device is electrically connected with the control terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922404542.6U CN211924389U (en) | 2019-12-27 | 2019-12-27 | Wind turbine generator system safety protection system testing arrangement |
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| CN201922404542.6U CN211924389U (en) | 2019-12-27 | 2019-12-27 | Wind turbine generator system safety protection system testing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120224A (en) * | 2019-12-27 | 2020-05-08 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | Testing device and testing method for wind turbine generator safety protection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120224A (en) * | 2019-12-27 | 2020-05-08 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | Testing device and testing method for wind turbine generator safety protection system |
| CN111120224B (en) * | 2019-12-27 | 2024-02-20 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | Testing device and testing method for safety protection system of wind turbine generator |
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