CN113608054A - Intelligent verification system for relay protection of traction substation based on building block type mechanism - Google Patents
Intelligent verification system for relay protection of traction substation based on building block type mechanism Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
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Abstract
The invention discloses a traction substation relay protection intelligent verification system based on a building block system mechanism, which comprises a control host and a relay protection tester, wherein the control host and the relay protection tester are connected in a COM/SCOCKET communication mode, the control host is connected to a traction substation relay protection device through an IEC61850/IEC103 communication protocol, the relay protection tester is connected with the traction substation relay protection device through a test wire, the control host is provided with a relay protection test engineering module, and the relay protection test engineering module is composed of a building block type sub experiment. The invention adopts a building block system to realize the intelligent generation of the test scheme engineering of the relay protection device of the traction substation, can quickly establish the test engineering of the relay protection of the traction substation, reduces the workload of field testers and lowers the technical level requirement of the testers.
Description
Technical Field
The invention relates to the technical field of relay protection intelligent verification systems, in particular to a building block system-based traction substation relay protection intelligent verification system.
Background
The traction substation converts the electric energy sent from the power plant via the electric power transmission line into a voltage suitable for the requirements of the rolling stock and distributes the voltage to the catenary or the contact rail (third rail). The relay protection device is one of the most important secondary devices of the traction substation, and provides an important protection effect on the safety and stability of the transportation of the locomotive vehicles. At present, most of the debugging, overhauling, checking and the like of the relay protection device of the traction substation still adopt the traditional manual test mode.
In the traditional manual test mode and the actual test process, test data needs to be manually input by a tester, and the results and the precision measured by the same test of different personnel can be different. Moreover, the manual test cannot guarantee the test accuracy and the work efficiency, so that the intelligent level of the test of the relay protection device of the traction substation needs to be improved through technical means, and the verification efficiency and the accuracy of the relay protection device of the traction substation are improved.
The existing relay protection test mode has the following defects:
1) when a traction substation tester tests a traction substation relay protection device, due to the fact that water quality limit is tested by the tester, setting values, communication protocols and equipment data models of relay protection devices of different manufacturers are different, test workload is large, test data results need to be analyzed and sorted after the test is completed, and test randomness, blindness, redundancy or omission are easily caused.
2) In the actual test process, test data needs to be manually input, the setting of tester parameters needs to be completely dependent on the technical level of testers, different personnel test the same kind, and the selected modules may be different.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a traction substation relay protection intelligence verification system based on cordwood system mechanism can the independent assortment building block formula sub-experiment generate protection device intelligence verification scheme, has reduced the interference of human factor to the test procedure, has improved efficiency of software testing and has guaranteed the reliability of test to solve the artifical inefficiency of testing of traction substation relay protection device that exists among the prior art, consuming time for a long time, the device signal covers limited technical problem.
The technical scheme adopted by the invention is as follows: an intelligent verification system for relay protection of a traction substation based on a building block system comprises a control host and a relay protection tester, wherein the control host and the relay protection tester are connected in a COM/SCOCKET communication mode, the control host is connected to a relay protection device of the traction substation through an IEC61850/IEC103 communication protocol, the relay protection tester is connected with the relay protection device of the traction substation through a test wire, the control host is responsible for issuing voltage and current information during testing to the relay protection tester, the control host is provided with a protection setting value and a soft pressing plate for relay protection and receives action information and voltage and current remote measurement information of the relay protection, and after receiving test variable data issued by the control host, a power amplifier in the relay protection tester generates voltage and current analog quantity to be output to a voltage and current input terminal of the relay protection, meanwhile, the relay protection tester receives an action signal of a relay protection device of the traction substation, and the control host is provided with a relay protection test engineering module which consists of a building block type sub-experiment.
The method of the wooden sub-experiment is as follows: the method comprises the steps of storing preset test parameters including maximum fault duration, output voltage and current and switching value information, and creating a specific test project to carry out intelligent combined test on the relay protection device of the traction substation through a combined block type sub-experiment.
In the intelligent joint inspection process of the relay protection device of the traction substation, the control host acquires voltage and current data of the relay protection device of the tested traction substation in real time through an IEC61850/IEC103 communication protocol, and the voltage and current data are displayed in each building block type sub-experiment in a curve form and are stored after the sub-experiments are finished.
And the relay protection test engineering module operates any one building block type sub-experiment or sequentially performs all the sub-experiments according to the arrangement sequence of the sub-experiments.
After completing the test of one sub-experiment, the relay protection tester feeds back the fault state duration of the sub-experiment to the host, the control host obtains that the sub-experiment test of the traction substation passes through by judging that the difference value between the fault state duration and the protection setting action time is smaller than a set error value, the error value is set to be 30ms, and the fault state duration is smaller than the maximum fault state duration, and the other conditions are judged that the test does not pass.
After all the sub-experiments are completed, the host end independently marks the sub-experiments which do not pass the test with red marks, and the sub-experiments which do not pass the test are manually selected to check the historical voltage and current data of the relay protection device of the traction substation during the experiment.
After all the sub-experiments are completed, the host end marks the sub-experiments which fail the test separately with red marks, manually selects the sub-experiments which fail to modify the test parameters, and runs the sub-experiments separately.
The invention has the beneficial effects that: compared with the prior art, the invention has the following effects:
1) the invention adopts a building block system to realize the intelligent generation of the test scheme engineering of the relay protection device of the traction substation, can quickly establish the test engineering of the relay protection of the traction substation, reduces the workload of field testers and lowers the technical level requirement of the testers;
2) the invention adopts the preset building block type experiment, thereby ensuring the standardization and the reliability of the test, reducing the interference of human factors on the test process and ensuring that the test result of the relay protection device of the traction substation is more accurate;
3) the invention records the voltage and current data of the traction transformer relay protection device in the experimental process, and is convenient for historical backtracking to search the reason why the experiment does not pass.
Drawings
FIG. 1 is a block diagram of the system of the present invention.
Detailed Description
The invention is further described below with reference to specific examples.
Example 1: as shown in figure 1, the intelligent verification system for the relay protection of the traction substation based on the building block system comprises a control host and a relay protection tester, wherein the control host and the relay protection tester are connected in a COM/SCOCKET communication mode, the control host is connected to a relay protection device of the traction substation through an IEC61850/IEC103 communication protocol, the relay protection tester is connected with the relay protection device of the traction substation through a test wire, the control host is responsible for issuing voltage and current information during testing to the relay protection tester, the control host is provided with a protection setting value and a soft pressing plate of the relay protection, action information and voltage and current remote measurement information of the relay protection are received, after the relay protection tester receives test variable data issued by the control host, a power amplifier in the relay protection tester generates voltage and current analog quantity to be output to a voltage and current input terminal of the relay protection, meanwhile, the relay protection tester receives an action signal of a relay protection device of the traction substation, and the control host is provided with a relay protection test engineering module which consists of a building block type sub-experiment.
The setting method of the building block type sub experiment of the intelligent relay protection calibration system of the traction substation comprises the following steps: the adding amount of a tester and the setting value of the traction transformer relay protection device during manual testing of the traction transformer relay protection device are recorded and stored in a data form, and the test is called a block type sub-experiment. The intelligent calibration system for the relay protection of the traction substation sequentially arranges and combines a plurality of building block type sub-experiments according to the tested experiment sequence to realize a complete test project and can carry out comprehensive intelligent combined inspection on the relay protection device of the traction substation.
When a test project of the intelligent relay protection verification system of the traction substation is started, the intelligent relay protection verification system control host of the traction substation reads the tester addition data when the relay protection device of the traction substation is read, wherein the tester addition data comprises a phase sequence, a voltage current value, output time and input and output quantity output by the tester. The intelligent calibration system for the relay protection of the traction substation transmits the adding amount data of the tester to the relay protection tester in a COM/SOCKET communication mode, and controls the relay protection tester to output voltage and current to the relay protection device.
When a test project of the intelligent relay protection verification system of the traction substation is started, the intelligent relay protection verification system control host of the traction substation reads the setting value of the relay protection device of the traction substation in the block type sub-experiment, and the setting value in the sub-experiment is sent to the relay protection device of the traction substation through an IEC61850/IEC103 communication protocol and a remote control mode of the relay protection device, so that parameter configuration of the relay protection device of the block type sub-experiment is realized.
In the process of testing the intelligent relay protection verification system of the traction substation, the control host of the intelligent relay protection verification system of the traction substation acquires voltage and current data (telemetering data) of the relay protection device of the tested traction substation in real time through an IEC61850/IEC103 communication protocol and a remote control mode of the relay protection device. After the control host of the intelligent relay protection verification system of the traction substation acquires real-time experimental data of the relay protection of the traction substation, voltage and current data are drawn on an interface of the intelligent relay protection verification system of the traction substation in a curve form, and the real-time voltage and current data are stored after sub-experiments are finished.
The intelligent calibration system for the relay protection of the traction substation can sequentially perform all sub-experiments according to the arrangement sequence of the building block type sub-experiments in the test engineering.
After a block type sub-experiment is completed, the tester returns the input receiving information and the sub-experiment duration in the block type sub-experiment process, and the intelligent relay protection verification system of the traction substation judges whether the relay protection device trips successfully or not through the input receiving information (the input of the tester is connected with a relay protection tripping outlet, and the input receiving information of the tester is tripping information of the relay protection device). Or comparing the actual duration time of the sub-experiment with the set maximum duration time, if the actual duration time of the sub-experiment is less than the set maximum duration time and slightly greater than the action time set value of the relay protection, judging that the relay protection device trips successfully, and enabling the sub-experiment test to pass.
After the intelligent relay protection verification system of the traction substation completes all the building block type sub-experiments, if a sub-experiment (a relay protection device is not tripped) which cannot pass the test exists, the host terminal of the intelligent relay protection verification system of the traction substation can load the historical voltage and current tested by the building block type sub-experiment, and the historical voltage and current are compared with the experiment setting parameters of the building block type sub-experiment to check the reason why the sub-experiment test cannot pass.
After the intelligent relay protection verification system of the traction substation completes all the building block type sub-experiments, if the sub-experiments which do not pass exist (the relay protection device does not trip), the host end independently marks the sub-experiments which do not pass through with red marks, and testers can manually select the sub-experiments which do not pass through, modify test parameters and independently operate the sub-experiments.
The intelligent verification system for the relay protection of the traction substation can freely combine the building block type sub-experiments to generate an intelligent verification scheme for the protection device, reduces interference of human factors to a test process, improves test efficiency and ensures test reliability, and solves the technical problems that in the prior art, manual testing of the relay protection device of the traction substation is low in efficiency, consumes time for a long time and is limited in device signal coverage.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.
Claims (7)
1. The utility model provides a traction substation relay protection intelligence verification system based on cordwood system mechanism which characterized in that: the control host is connected with a traction substation relay protection device through an IEC61850/IEC103 communication protocol, the relay protection tester is connected with the traction substation relay protection device through a test wire, the control host is responsible for issuing voltage and current information during testing to the relay protection tester, the control host is provided with a relay protection fixed value and a soft pressing plate and receives relay protection action information and voltage and current remote measurement information, after the relay protection tester receives test variable data sent by the control host, a power amplifier in the relay protection tester generates voltage and current analog quantity to be output to a relay protection voltage and current input terminal, and the relay protection tester receives action signals of the traction substation relay protection device, the control host is provided with a relay protection test engineering module, and the relay protection test engineering module is composed of a building block type experiment.
2. The intelligent traction substation relay protection verification system based on the building block type mechanism as claimed in claim 1, is characterized in that: the method of the wooden sub-experiment is as follows: the method comprises the steps of storing preset test parameters including maximum fault duration, output voltage and current and switching value information, and creating a specific test project to carry out intelligent combined test on the relay protection device of the traction substation through a combined block type sub-experiment.
3. The intelligent traction substation relay protection verification system based on the building block type mechanism as claimed in claim 2, is characterized in that: in the intelligent joint inspection process of the relay protection device of the traction substation, the control host acquires voltage and current data of the relay protection device of the tested traction substation in real time through an IEC61850/IEC103 communication protocol, and the voltage and current data are displayed in each building block type sub-experiment in a curve form and are stored after the sub-experiments are finished.
4. The intelligent traction substation relay protection verification system based on the building block type mechanism as claimed in claim 1, is characterized in that: and the relay protection test engineering module operates any one building block type sub-experiment or sequentially performs all the sub-experiments according to the arrangement sequence of the sub-experiments.
5. The intelligent traction substation relay protection verification system based on the building block type mechanism as claimed in claim 4, wherein: after completing the test of one sub-experiment, the relay protection tester feeds back the fault state duration of the sub-experiment to the host, the control host obtains that the sub-experiment test of the traction substation passes through by judging that the difference value between the fault state duration and the protection setting action time is smaller than a set error value, the error value is set to be 30ms, and the fault state duration is smaller than the maximum fault state duration, and the other conditions are judged that the test does not pass.
6. The intelligent traction substation relay protection verification system based on the building block type mechanism as claimed in claim 5, wherein: after all the sub-experiments are completed, the host end independently marks the sub-experiments which do not pass the test with red marks, and the sub-experiments which do not pass the test are manually selected to check the historical voltage and current data of the relay protection device of the traction substation during the experiment.
7. The intelligent traction substation relay protection verification system based on the building block type mechanism as claimed in claim 5, wherein: after all the sub-experiments are completed, the host end marks the sub-experiments which fail the test separately with red marks, manually selects the sub-experiments which fail to modify the test parameters, and runs the sub-experiments separately.
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| CN202110934075.7A CN113608054A (en) | 2021-08-13 | 2021-08-13 | Intelligent verification system for relay protection of traction substation based on building block type mechanism |
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| CN202110934075.7A CN113608054A (en) | 2021-08-13 | 2021-08-13 | Intelligent verification system for relay protection of traction substation based on building block type mechanism |
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- 2021-08-13 CN CN202110934075.7A patent/CN113608054A/en active Pending
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