CN111800313A - Method for testing message output performance of digital relay protection tester - Google Patents
Method for testing message output performance of digital relay protection tester Download PDFInfo
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- CN111800313A CN111800313A CN202010631067.0A CN202010631067A CN111800313A CN 111800313 A CN111800313 A CN 111800313A CN 202010631067 A CN202010631067 A CN 202010631067A CN 111800313 A CN111800313 A CN 111800313A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
Abstract
The invention discloses a message output performance test method of a digital relay protection tester, which is characterized in that VLANs are averagely distributed in the digital relay protection tester and an optical switch, so that a fault recording and network message recording and analyzing device can more accurately analyze data; configuring different message data for multiple ports of a tester and outputting the message data from the ports of the tester at the same time, injecting the message data into an optical switch through flow increase, adopting more output ports on the output side of the optical switch to a fault recording and network message recording and analyzing device and distributing VLAN (virtual local area network), so that the fault recording and network message recording and analyzing device can analyze the data more accurately, and when the flow reaches the output limit state of the tester, performing capacity simulation of outputting various abnormal messages at a large flow rate and various short-circuit fault simulations; the invention provides a synchronous testing method for a plurality of testers, which is characterized in that a GPS is used for accurately testing time and synchronous triggering to carry out synchronous function verification, and whether message data are synchronously triggered or not is checked by checking the data synchronism on a fault recording and network message recording and analyzing device.
Description
Technical Field
The invention relates to the technical field of protection and debugging of a power system, in particular to a method for testing message output performance of a digital relay protection tester.
Background
The digital relay protection instrument is important equipment for protection and debugging of the current intelligent substation. The digital relay protection instrument can be used for debugging important tools of intelligent substation process layer equipment, can be used for verifying various digital measurement and control and protection units meeting IEC61850 standard standards, can simulate single-phase to three-phase transient, permanent and conversion faults to carry out a whole set of tests, can conveniently carry out three-phase differential protection tests on multi-phase current, can be used for spare power automatic switching tests and the like, and can also be used for testing channels on two sides of a circuit by accurately timing a plurality of test equipment.
The digital relay protection tester can simulate various process layer messages and is an important debugging tool for the intelligent substation.
The digital relay protection tester can simulate messages of IEC61850-9-1, IEC 61850-9-2, GOOSE and IEC60044-7/8 standards, and the test method needs to verify message output function verification, port output performance test, message abnormal simulation capability in a high-flow output state, fault simulation capability in the high-flow output state and synchronization capability test of a plurality of testers. And respectively testing the capacities by using fault recording and network message recording analysis devices, optical switches and other auxiliary tests, thereby testing the reliability of the output capacity of the digital relay protection tester.
In the prior art, a conventional test method is to perform mutual verification on a protection device through an output fault and perform mutual verification through a network analyzer and related auxiliary equipment, so as to achieve the purpose of use in a power system. The digital relay protection tester has the advantages that various abnormal conditions can not be debugged, network storms of switches and various protection networking ports can receive the network storms and the like in use, and the purpose can be achieved only by the output capacity of the digital relay protection tester, so that the digital relay protection tester is particularly important for performance testing of the digital relay protection tester.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the existing digital relay protection tester has the problems of incomplete test, low coverage rate and incomplete test safety.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention provides a message output performance test method for a digital relay protection tester, which comprises the digital relay protection tester, an optical switch, a GPS synchronous time service device and a fault recording and network message recording and analyzing device, wherein the optical switch is connected with the digital relay protection tester; the output ports of the digital relay protection tester are connected with the input ports of the optical switch in a one-to-one correspondence manner, the shunt output ports of the optical switch are connected with the input ports of the fault recording and network message recording and analyzing devices in a one-to-one correspondence manner, and the receiving ports of the digital relay protection tester are connected with the output ports of the GPS synchronous time service devices;
the digital relay protection tester is used for carrying out digital relay protection tester configuration on the introduced SCD file configured by the intelligent substation and sending VLAN configuration flow after the digital relay protection tester configuration from an output port to the optical switch;
the digital relay protection tester is also used for sending SV or GOOSE data after time synchronization to a fault recording and network message recording and analyzing device;
the optical switch is used for configuring the optical switch according to the number of the flow output ports of the digital relay protection tester for the received flow, and the optical switch is also used for sending the VLAN configuration flow configured by the optical switch to a fault recording and network message recording and analyzing device through the shunting output port;
the fault recording and network message recording and analyzing device is used for detecting and analyzing VLAN configuration flow sent by the receiving optical switch and then outputting actual content.
The principle of the technical scheme is as follows: the technical scheme mainly aims to test the network access performance of the digital relay protection tester equipment for debugging the intelligent transformer substation, simulate the flow by utilizing the real condition of the transformer substation, comprehensively test the fault simulation condition of the digital tester under the conditions of high flow and network storm, and simultaneously test the data output performance of the digital relay protection tester through the synchronous condition of different testers under the condition of three-side line channels.
The method comprises the steps of importing SCD files configured by an intelligent substation into a digital relay protection tester, importing SV faults and GOOSE data messages with different intervals, configuring a plurality of VLANs through one or more ports of the digital relay protection tester, connecting a plurality of ports of a switch, analyzing through a fault recording and network message analyzing device connected with a plurality of ports, sending through one or more ports of the digital relay protection tester, gradually increasing flow, and checking a single-port message flow sending peak value. And simulating various abnormal and fault messages under the condition of the peak value, and checking whether the actual simulation condition is consistent with the analysis result.
Normally, a digital protection tester is used to directly add the message to a photoelectric converter or a network analysis device, and the message is directly analyzed. The analysis flow is limited within the bearable range of the receiving device, and the large-flow condition of a real transformer substation cannot be simulated. The digital relay protection tester fails to perform effective performance tests, so that the network storm cannot be truly reproduced on site, and under the condition of network overload, faults are easy to occur and whether fault events are processed or not is unknown.
However, the output flow of the single-port or multi-port message of the tester is added to the maximum value of the allowable bearing flow, and various abnormal message capability simulations and various short-circuit fault simulations are performed under the condition of large-flow output, so that the simulation of the emergency network events by various intelligent devices of the transformer substation is facilitated. After the port test is finished, the output performance of the digital relay protection tester can be clearly known, and various debugging works can be finished by paying attention to the debugging process.
Further preferably, the configuration SCD file includes SV failure messages and GOOSE data messages at different intervals.
By utilizing the SCD file of the transformer substation to be networked, the data output is completely consistent with the data of the transformer substation, the output capability of the digital relay protection tester under the real condition is more accurately reflected, and various network tests of the transformer substation can be more completely performed. In the simulation output capability test, SV message data needs to monitor whether the precision of output current and voltage under different frequencies meets requirements or not, whether the phase precision meets requirements or not, simulate various fault types, check whether the data is consistent with the SV message data sent out or not, simulate frame loss, error sequence, repetition, jitter and the like, and check whether a network recording and analyzing device can normally process and display the data; the GOOSE message also simulates frame loss, overtime, state change, maintenance and the like under various traffic conditions, and whether data output is consistent with actual data output needs to be checked.
Further preferably, the configuration process of the digital relay protection tester is as follows: after SV fault messages and GOOSE data messages with different intervals are led into the digital relay protection tester, a plurality of VLANs are configured in the digital relay protection tester, and each led-in message is correspondingly configured with one VLAN.
Further preferably, the optical switch configuration includes:
when the digital relay protection tester outputs a single-port message, the input port VLAN and the flow of the optical switch are not limited, the configured VLAN is averagely distributed to the output end of the optical switch by the output end and is output in sequence, and the single input port of the optical switch corresponds to at least 3 flow shunt output ends;
when the digital relay protection tester outputs multi-port messages, the input port VLAN and the flow of the optical switch are not limited, the output end evenly distributes all the configured VLANs to the output end of the optical switch to output in sequence (from small to large according to the port number of the switch and the number of the VLAN), and each input end of the optical switch corresponds to at least 2 flow shunt output ends.
The principle of the technical scheme is as follows: the network storm simulation capability appears when the intelligent substation is in the field operation condition, and under the condition that the intelligent substation normally operates, the simulation of the fault and the data abnormity in the environment is very important. The multi-port message output capability test can effectively test the simulation abnormal and fault capability condition of the digital relay protection tester in the debugging process of the transformer substation, so that the digital relay protection tester can be safely and stably operated on the subsequent site.
The traditional single-port message output test only utilizes a network message analysis tool or computer software to grab a packet to carry out port test, the test result is incomplete, the single-port message flow sending capacity of the tester per se cannot be effectively tested, the actual requirement of a transformer substation cannot be met, the processing capacity of the fault recording and network message analysis device per se is limited, and the output capacity of the digital protection tester cannot be effectively verified. The test method can fill the flow of a single port to the maximum value of the allowable bearing flow of the tester, and can simulate various abnormal message capacities and various short-circuit faults under the condition of large-flow output, thereby being beneficial to truly simulating various intelligent devices of the transformer substation to simulate the emergency network events.
Further preferably, the message output performance test of the digital relay protection tester comprises the following specific steps:
s1, importing the SCD file configured by the intelligent substation into a digital relay protection tester to configure the digital relay protection tester;
s2, the digital relay protection tester sends VLAN configuration flow after the configuration of the digital relay protection tester to the optical switch, single-group different VLAN configuration flows are sent out from different output ports at the same time, and the VLAN configuration flow injected into the optical switch is used as simulation content;
s3, the optical switch configures the optical switch for the received flow according to the number of the flow output ports of the digital relay protection tester, and the optical switch sends the corresponding flow to a fault recording and network message recording analysis device through the corresponding flow shunting output port;
s4, the fault recording and network message recording and analyzing device detects and analyzes each port flow configured by the accessed optical switch and outputs actual content;
s5, comparing whether the actual content of the simulation content and the actual content of the fault wave recording and network message recording analysis device meet the requirements, if the comparison result does not meet the requirements, ending the test with disqualification, and if the comparison result meets the requirements, carrying out S6;
and S6, increasing the number of VLAN configuration flow groups injected into the optical switch by each output port by the digital relay protection tester to be tested repeatedly until the limit value of the output port of the digital relay protection tester is reached, and if the comparison between the simulation content and the actual content meets the requirement, finishing the test qualification.
And S7, after testing of all ports of the output end of the digital relay protection tester is completed, carrying out transformer substation event fault simulation and message abnormal function testing on any port of the digital relay protection tester which is tested to be qualified under the limit output state of the digital relay protection tester so as to check whether the digital relay protection tester can work normally.
Further preferably, in S6, the digital relay protection tester measures a flow rate of each output port from 0 to 100 MB/S.
Further preferably, when the single-port message output performance of a plurality of digital relay protection testers is synchronously tested, the testing steps are as follows:
t1, firstly, connecting each digital relay protection tester IRIG-B receiving port to a GPS time service device for synchronous time service;
t2, respectively importing the SCD files configured by the intelligent substations into digital relay protection testers in the intelligent substations, and configuring each file by the digital relay protection tester;
t3, triggering each digital relay protection tester at the same time, sending VLAN configuration flow after the digital relay protection tester is configured to each corresponding optical switch by each digital relay protection tester, and injecting the VLAN configuration flow of the optical switch as analog content;
t4, the optical switches configure the optical switches for the received flow, and each optical switch sends the VLAN configuration flow configured by the optical switches to the same fault recording and network message recording and analyzing device through the corresponding flow shunting output ports;
and T5, checking whether the waveforms of analog content data at the triggering time of the SV fault messages of all the digital relay protection testers are consistent or not on a fault recording and network message recording and analyzing device, and if the deviation is within an allowable range, namely the test is qualified.
The principle of the technical scheme is as follows: the synchronous function test of the digital relay protection testers mainly can be used for data synchronous test function verification of channel tests on two sides of lines or three sides of the lines of the intelligent substation, and line protection optical difference channel verification can be effectively carried out.
The two sides and the three sides of the circuit can not be subjected to injection digital quantity test through a digital relay protection tester, and can only be subjected to synchronous function verification through GPS accurate time synchronization, so that synchronous triggering can be performed through GPS devices on the two sides of the circuit. And verifying and checking whether data such as SV fault messages, GOOSE data messages and the like are triggered synchronously or not by checking the data synchronism on the fault recording and network message recording and analyzing devices.
In the process of line joint debugging, a plurality of testers cannot be synchronized, conventional tests are usually checked in a single-side dosage mode or are triggered simultaneously through contacts such as mobile phone calls, corresponding trigger points are inconsistent, and therefore differential flow exists in protection in the line debugging process. The tester after the time is accurately calibrated through the GPS is triggered by setting a time point, and the channel debugging is very close to the real situation. In the synchronous function test of a plurality of digital relay protection testers, the synchronous function verification is carried out through GPS accurate time synchronization, so that synchronous triggering can be carried out through GPS devices on two sides of a circuit. And verifying and checking whether the data such as SV message, GOOSE message and the like are triggered synchronously or not by checking the data synchronism on the fault recording and network message recording and analyzing device.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention provides a performance test method of a digital relay protection tester for outputting single-port messages and multi-port messages, which can reflect data messages of an intelligent substation more truly by upgrading and reconstructing traditional tests.
2. The invention provides a performance test method of a digital relay protection tester with single-port message and multi-port message output, which can comprehensively test the performance of the digital relay protection tester, reduce potential safety hazards and improve the working efficiency.
3. The invention provides a synchronous test method for the message output performance of a plurality of digital relay protection testers, which has the advantages that the synchronous test of the testers is realized, the operability is strong, various debugging modes can be realized under the condition of large flow, the workload can be reduced to a large extent, and the practical range is wide.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.
In the drawings:
fig. 1 is a schematic diagram of a digital relay protection tester single-port message output performance test.
Fig. 2 is a schematic diagram of a multi-port message output performance test of a digital relay protection tester.
Fig. 3 is a wiring diagram and a schematic diagram for testing the message output synchronization function of a plurality of digital relay protection testers.
Fig. 4 is a wiring diagram for testing single-port message output performance of the digital relay protection tester.
Fig. 5 is a wiring diagram for testing multi-port message output performance of the digital relay protection tester.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
The invention provides a method for testing message output performance of a digital relay protection tester.
As shown in the schematic diagram of the single-port message output performance test of the digital relay protection tester in FIG. 1, the connection mode of each port is as shown in FIG. 4
When the digital relay protection tester outputs a single-port message, the performance testing step specifically comprises:
and S1, importing the SCD file configured by the intelligent substation into the tester, and importing SV and GOOSE messages at different intervals respectively so as to simulate the process layer messages of the intelligent substation. Multiple VLANs are configured by the tester, such as SV failure message configuration VLANs as shown in the table below.
| Spacer | VLAN configuration |
| Space 1SV | 101 |
| Space 2SV | 102 |
| …… | …… |
| Interval n SV | …… |
S2, the digital relay protection tester sends VLAN configuration flow after the configuration of the digital relay protection tester to the optical switch, a single group of different VLAN configuration flow is sent from the output port No. 1, and the VLAN configuration flow injected into the optical switch is used as analog content (after the single group of flow is tested, the VLAN configuration flow with a plurality of different SVs or GOOSEs is sent to complete the flow test);
and S3, configuring the optical switch, wherein the digital relay protection tester inputs the VLAN of the port No. 1 and the flow is not limited, and the output end evenly distributes the VLAN to the flow diversion port 1, the flow diversion port 2 and the flow diversion port 3 of the optical switch for output. So that the flow is evenly distributed for device analysis. Less than 3 VLANs may be output sequentially from port 1, port 2, port 3. The output table is shown in the following figure.
| Switch output port | VLAN configuration output setup |
| Port 2 | 101/104…… |
| Port 3 | 102/105…… |
| Port 4 | 103/106…… |
And S4, after all the devices are completely arranged, controlling the flow through the digital relay protection tester, setting one VLAN for the first test, after the flow test of the VLAN configured by one SV/GOOGSE is finished, configuring and outputting a plurality of SV/GOOSEs to the port No. 1, gradually amplifying the flow, checking the data received by the network recording and analyzing device, and comparing whether the analog content and the actual content of the digital relay protection tester meet the requirements or not.
S5, observing that when the flow reaches the output limit value of the tester, the data can not be output normally or the data is lost or abnormal, replacing the port, and repeating the related performance test
And S6, after testing all ports, simulating the event fault of the transformer substation and testing the abnormal message function in the limit output state. And checking whether the tester can work normally.
Example 2
The digital relay protection tester is connected with the optical switch, and the other multi-port of the optical switch is connected with the fault recording and network message recording and analyzing device.
The multi-port message output capability test can effectively test the simulation abnormal and fault capability condition of the digital relay protection tester in the debugging process of the transformer substation, so that the digital relay protection tester can be safely and stably operated on the subsequent site. The test method can inject the multiport message flow to the maximum value of the output flow allowed to be borne by the tester, and can simulate various abnormal message capacities and various short-circuit faults under the condition of large-flow output, thereby being beneficial to truly simulating various intelligent devices of the transformer substation to simulate the emergency network events. Fig. 2 is a schematic diagram of a digital relay protection multi-port message output performance test according to the present invention; fig. 5 is a wiring diagram for testing multi-port message output performance of the digital relay protection tester according to the present invention.
Step 1: the SCD file configured by the intelligent substation is imported into a tester, SV and GOOSE messages at different intervals are respectively imported so as to simulate the messages of the process layer of the intelligent substation, and a plurality of VLANs are configured through the tester, for example, the SV configuration VLANs are shown in the following table.
| SCD interval | VLAN configuration |
| Space 1SV | 101 |
| Space 2SV | 102 |
| …… | …… |
| Interval n SV | …… |
Step 2: and (2) configuring a digital relay protection tester, and sending single different SV, GOOSE and other message configurations from the port 1, the port 2, the port 3 and the port 4 at the same time (the number of output ports of the tester is four in the embodiment, and after a single flow test is finished, a plurality of SV/GOOSE are configured to be sent so as to finish the flow test).
And step 3: and (3) configuring the optical switch, wherein the input port VLAN and the flow are not limited, and the output end averagely distributes the VLAN configured by the port 1 to more ports of the optical switch for message output. So that the flow is evenly distributed for device analysis. The output table is shown in the following figure.
And 4, step 4: after all the devices are completely arranged, the flow is controlled through the digital relay protection tester, one VLAN can be set for the first test, after the VLAN flow test configured by one SV/GOOGSE is completed, a plurality of SV/GOOSE configurations can be output to ports No. 1, No. 2, No. 3 and No. 4, the flow is gradually amplified, the data received by the network recording and analyzing device is checked, and whether the analog content and the actual content of the digital relay protection tester meet the requirements or not is compared.
And 5: and increasing the number of VLAN configuration flow groups injected into the optical switch by each output port of the digital relay protection tester to be tested repeatedly until the limit value of the output port of the digital relay protection tester is reached, and finishing the test if the comparison between the simulation content and the actual content meets the requirement.
Step 6: and after the testing of all the ports is finished, one of the 4 ports in the limit output state is used for carrying out event fault simulation and message abnormal function testing on the transformer substation. And checking whether the tester can work normally.
Example 3
The synchronous function test of multiple testers mainly can be used for data synchronous test function verification of channel tests on two sides of lines or three sides of the lines of the intelligent substation, and line protection optical difference channel verification can be effectively carried out.
The two-side and three-side protection function verification of the circuit can not be carried out by a tester for injection digital quantity test, and can only be carried out by GPS accurate time synchronization for synchronous function verification, thus synchronous triggering can be carried out by GPS devices on two sides of the circuit. And verifying and checking whether the SV, GOOSE and other data are synchronously triggered or not by checking the data synchronism on the fault recording and network message recording and analyzing device.
FIG. 3 is a wiring diagram for testing the synchronous function of a plurality of digital relay protection testers;
step 1: the SCD files configured by the intelligent substation are respectively imported into a digital relay protection tester A, a digital relay protection tester B and a digital relay protection tester C, and SV and GOOSE messages with different intervals are respectively imported as shown in the following table.
Step 2: the GPS time service device accurately performs time service through the antenna, and the time service is not less than 2 hours so as to be similar to the situation of a real transformer substation.
And step 3: and connecting the three sets of configured IRIG-B receiving ports of the digital relay protection tester to a GPS time service device for time synchronization, and carrying out the next operation after the time synchronization is checked.
And 4, step 4: and carrying out digital relay protection tester configuration, wherein the configuration outputs SV/GOOSE from the first port.
And 5: and the port 1 of the digital relay protection tester is respectively connected to a fault recording and network message recording and analyzing device in sequence.
Step 6: and after all the devices are completely arranged, setting SV fault messages or GOOSE data messages to be triggered at the same time through the digital relay protection tester A, the digital relay protection tester B and the digital relay protection tester C.
And 7: and (4) checking whether the waveforms of the three sets of SV trigger time are consistent and whether the GOOSE trigger time is the same on a fault recording and network message recording and analyzing device. And (4) within the tolerance range of the deviation, namely, the test is qualified.
The invention mainly aims to test the network access performance of digital relay protection tester equipment for debugging of an intelligent substation, simulate flow by using the real condition of the substation, comprehensively test the fault simulation conditions of the digital tester under the conditions of high flow and network storm, and simultaneously test the data output performance of the digital relay protection tester through the synchronous conditions of different testers under the condition of three-side line channels.
A message output performance test method for a digital relay protection tester based on an intelligent substation comprises the following steps:
and connecting all the intelligent equipment of the configured transformer substation with the optical switch to establish a real transformer substation data message.
The method comprises the steps of importing SCD files configured by an intelligent substation into a tester, importing SV and GOOSE messages with different intervals, configuring a plurality of VLANs through the tester, connecting a switch, analyzing through a fault recording and network message recording and analyzing device connected with a plurality of ports, sending through 1 digital relay protection tester, gradually increasing flow, and checking a single-port message flow sending peak value. And simulating various abnormal and fault messages under the condition of the peak value, and checking whether the actual simulation condition is consistent with the analysis result.
The method comprises the steps of importing SCD files configured by an intelligent substation into a tester, importing SV and GOOSE messages with different intervals, configuring a plurality of VLANs through a plurality of ports of the tester, connecting a plurality of ports of a switch, analyzing through a fault recording and network message recording and analyzing device connected through a plurality of ports, sending through a plurality of optical ports of a digital relay protection tester, gradually increasing flow, and checking single-port flow sending peak values. And simulating various abnormal and fault messages under the condition of the peak value, and checking whether the actual simulation condition is consistent with the analysis result.
The method comprises the steps of respectively importing SCD files configured by an intelligent substation into a digital relay protection tester A, a digital relay protection tester B and a digital relay protection tester C, respectively importing SV and GOOSE messages with different intervals, and testing the synchronization of the SV and the GOOSE data triggered by set time by utilizing a fault recording and network and message recording analysis device after the time synchronization of the three testers.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A method for testing message output performance of a digital relay protection tester is characterized by comprising the digital relay protection tester, an optical switch, a GPS synchronous time service device and a fault recording and network message recording and analyzing device; the output ports of the digital relay protection tester are connected with the input ports of the optical switch in a one-to-one correspondence manner, the shunt output ports of the optical switch are connected with the input ports of the fault recording and network message recording and analyzing devices in a one-to-one correspondence manner, and the receiving ports of the digital relay protection tester are connected with the output ports of the GPS synchronous time service devices;
the digital relay protection tester is used for carrying out digital relay protection tester configuration on the introduced SCD file configured by the intelligent substation and sending VLAN configuration flow after the digital relay protection tester configuration from an output port to the optical switch;
the digital relay protection tester is also used for sending SV or GOOSE data after time synchronization to a fault recording and network message recording and analyzing device;
the optical switch is used for configuring the optical switch according to the number of the flow output ports of the digital relay protection tester for the received flow, and the optical switch is also used for sending the VLAN configuration flow configured by the optical switch to a fault recording and network message recording and analyzing device through the shunting output port;
the fault recording and network message recording and analyzing device is used for detecting and analyzing VLAN configuration flow sent by the receiving optical switch and then outputting actual content.
2. The method for testing message output performance of a digital relay protection tester according to claim 1, wherein the configuration SCD file contains SV fault messages and GOOSE data messages at different intervals.
3. The method for testing the message output performance of the digital relay protection tester according to claim 1, wherein the configuration process of the digital relay protection tester comprises: after SV fault messages and GOOSE data messages with different intervals are led into the digital relay protection tester, a plurality of VLANs are configured in the digital relay protection tester, and each led-in message is correspondingly configured with one VLAN.
4. The method according to claim 1, wherein the optical switch configuration comprises:
when the digital relay protection tester outputs a single-port message, the input port VLAN and the flow of the optical switch are not limited, the configured VLAN is averagely distributed to the output end of the optical switch by the output end and is output in sequence, and the single input port of the optical switch corresponds to at least 3 flow shunt output ends;
when the digital relay protection tester outputs multi-port messages, the input port VLAN and the flow of the optical switch are not limited, the output end evenly distributes all configured VLANs to the output end of the optical switch to output in sequence, and each input end of the optical switch corresponds to at least 2 flow shunt output ends.
5. The method for testing the message output performance of the digital relay protection tester according to claim 1, wherein the digital relay protection tester comprises the following specific steps:
s1, importing the SCD file configured by the intelligent substation into a digital relay protection tester to configure the digital relay protection tester;
s2, the digital relay protection tester sends VLAN configuration flow after the configuration of the digital relay protection tester to the optical switch, single-group different VLAN configuration flows are sent out from different output ports at the same time, and the VLAN configuration flow injected into the optical switch is used as simulation content;
s3, the optical switch configures the optical switch for the received flow according to the number of the flow output ports of the digital relay protection tester, and the optical switch sends the corresponding flow to a fault recording and network message recording analysis device through the corresponding flow shunting output port;
s4, the fault recording and network message recording and analyzing device detects and analyzes each port flow configured by the accessed optical switch and outputs actual content;
s5, comparing whether the actual content of the simulation content and the actual content of the fault wave recording and network message recording analysis device meet the requirements, if the comparison result does not meet the requirements, ending the test with disqualification, and if the comparison result meets the requirements, carrying out S6;
s6, increasing the number of VLAN configuration flow groups injected into the optical switch by each output port by the digital relay protection tester to be tested repeatedly until the limit value of the output port of the digital relay protection tester is reached, and if the comparison between the simulation content and the actual content meets the requirement, finishing the test qualification;
and S7, after testing of all ports of the output end of the digital relay protection tester is completed, carrying out transformer substation event fault simulation and message abnormal function testing on any port of the digital relay protection tester which is tested to be qualified under the limit output state of the digital relay protection tester so as to check whether the digital relay protection tester can work normally.
6. The method for testing message output performance of the digital relay protection tester according to claim 5, wherein the test flow of the digital relay protection tester to each output port in S6 is from 0 to 100 MB/S.
7. The method for testing the message output performance of the digital relay protection tester according to claim 1, wherein when the synchronous testing of the single-port message output performance of a plurality of digital relay protection testers is performed, the testing steps are as follows:
t1, firstly, connecting each digital relay protection tester IRIG-B receiving port to a GPS time service device for synchronous time service;
t2, respectively importing the SCD files configured by the intelligent substations into digital relay protection testers in the intelligent substations, and configuring each file by the digital relay protection tester;
t3, triggering each digital relay protection tester at the same time, sending VLAN configuration flow after the digital relay protection tester is configured to each corresponding optical switch by each digital relay protection tester, and injecting the VLAN configuration flow of the optical switch as analog content;
t4, the optical switches configure the optical switches for the received flow, and each optical switch sends the VLAN configuration flow configured by the optical switches to the same fault recording and network message recording and analyzing device through the corresponding flow shunting output ports;
and T5, checking whether the waveforms of analog content data at the triggering time of the SV fault messages of all the digital relay protection testers are consistent or not on a fault recording and network message recording and analyzing device, and if the deviation is within an allowable range, namely the test is qualified.
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