CN108254634B - Intelligent substation SV virtual terminal closed loop test method and device - Google Patents
Intelligent substation SV virtual terminal closed loop test method and device Download PDFInfo
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Abstract
The invention discloses a closed loop test method and a closed loop test device for SV virtual terminals of an intelligent substation, wherein the method comprises the following steps: connecting an SV virtual terminal output end of a test device into an SV virtual terminal input end of a device to be tested; configuring input information and MMS output information of a device to be tested; initializing the state of each SV virtual terminal to zero and then changing the output value to a rated value; when the state of a certain SV virtual terminal is changed, if a loop is normal, a telemetering signal triggered by the state value of the current SV virtual terminal is transmitted to a simulation background of test software through MMS report service; when the output state value of the telemetering signal is consistent with that of the current SV virtual terminal, the loop is judged to be normal; otherwise, judging that the loop state value is wrong; and if the simulation background of the test software does not receive the corresponding MMS report service after the current SV virtual terminal is changed to the rated value set time, judging that the loop is abnormal. The invention can improve the test efficiency, the accuracy of the judgment of the test result and the safety and the reliability of the operation of the power grid.
Description
Technical Field
The invention relates to the field of intelligent substation testing, in particular to a method and a device for testing a virtual terminal closed loop of an SV (Sampled Value) of an intelligent substation.
Background
The most significant difference between the intelligent Substation and the conventional Substation is the digitization of secondary system signals, that is, the transmission of signals between the secondary devices is no longer the conventional analog voltage, analog current, switching value contact signals, and the like, but is SV message signals and GOOSE (Generic Object Oriented Substation Event) Event message signals based on the IEC61850 standard. The message signals are transmitted through optical fibers on the basis of a network-based transmission mechanism, so that the conventional method for measuring the analog voltage, the analog current and the switching value contact signals through a common multimeter is not applicable to the intelligent substation.
At present, an optical digital relay protection tester is mainly used in an engineering field to input subscribed SV messages to a device to be tested, and then whether signals of each secondary virtual loop are correct or not is judged through panel display of the device to be tested. The method has the following disadvantages: the first is that the test efficiency is low; secondly, the testing process is not closed loop, and the real-time state or data of the device needs to be manually read from the panel of the device to be tested in the middle; thirdly, the test confirmation is completed manually, and the judgment of the test result is easy to make mistakes.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method and a device for testing SV virtual terminal closed loops of an intelligent substation, which can improve the testing efficiency, improve the accuracy of test result judgment and improve the safety and reliability of power grid operation, aiming at the defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a closed loop test method for SV virtual terminals of an intelligent substation is constructed, and comprises the following steps:
A) the output end of an SV virtual terminal of a test device is connected to the input end of an SV virtual terminal of a device to be tested through an Ethernet;
B) importing an SCD file from an input end of an SV virtual terminal of the device to be tested, configuring input information of the device to be tested through the SCD file, configuring MMS output information of the device to be tested through test software, and setting a relation between a dead zone value and a rated value of a simulation quantity sent by each simulation background of the test software;
C) initializing the state of each SV virtual terminal to zero;
D) sequentially changing the output value of each SV virtual terminal into the rated value;
E) when the state of a certain SV virtual terminal is changed, judging whether a signal loop of the current SV virtual terminal is normal, if so, sending a telemetering signal triggered by the state value of the current SV virtual terminal to a simulation background of the test software through MMS report service, and executing step F); otherwise, the corresponding MMS report service is not triggered, and step G) is executed;
F) judging whether the output state values of the telemetering signal and the current SV virtual terminal are consistent, if so, judging that the loop is normal, filling a normal mark of the loop in an information column of a simulation background of the test software, and executing a step H); otherwise, judging that the loop state value is wrong, filling loop abnormity or wrong state value identification in an information list of a simulation background of the test software, and executing the step H);
G) changing the current SV virtual terminal of the simulation background of the test software to the rated value to start timing, judging whether corresponding MMS report service is received after the set time, if so, returning to the step F); otherwise, judging that the loop of the current SV virtual terminal is abnormal, filling a write-back loop abnormal or telemetering signal non-existence identifier in a row corresponding to the input signal of the current SV virtual terminal of the information column of the simulation background of the test software, and executing the step H);
H) judging whether an SV virtual terminal which is not tested still exists, if so, returning to the step D); otherwise, the test is finished.
In the method for testing the SV virtual terminal closed loop of the intelligent substation, in the step B), the configuration of the MMS output information of the device to be tested comprises the following steps: the test software sets attribute parameters of report control blocks corresponding to the data set measurement and control device and the protection device, and sets a trigger mode to be data change trigger only and enable data reference bits in option field parameters.
In the intelligent substation SV virtual terminal closed-loop test method, the relation between the dead zone value of the simulation quantity sent by each simulation background of the test software and the rated value is as follows: and the dead zone value of the analog quantity sent by each analog background of the test software is 5% of the rated value.
In the closed-loop test method for the SV virtual terminal of the intelligent substation, the set time is 5 seconds.
The invention also relates to a device for realizing the SV virtual terminal closed-loop test method of the intelligent substation, which comprises the following steps:
an Ethernet access unit: the SV virtual terminal testing device is used for connecting the output end of the SV virtual terminal of the testing device to the input end of the SV virtual terminal of the device to be tested through the Ethernet;
a configuration unit: the device comprises a test software, an SV virtual terminal and an SCD file, wherein the test software is used for importing the SCD file from the input end of the SV virtual terminal of the device to be tested, configuring the input information of the device to be tested through the SCD file, configuring the MMS output information of the device to be tested through the test software, and setting the relation between the dead zone value and the rated value of the simulation quantity sent by each simulation background of the test software;
an initialization unit: the method is used for initializing the state of each SV virtual terminal to zero;
an output value changing unit: the system is used for sequentially changing the output value of each SV virtual terminal into the rated value;
a loop judgment unit: the simulation background is used for judging whether a signal loop of a current SV virtual terminal is normal or not when the state of a certain SV virtual terminal is changed, if so, sending a telemetering signal triggered by the state value of the current SV virtual terminal to the test software through MMS report service; otherwise, the corresponding MMS report service is not triggered;
a state value coincidence determination unit: the circuit is used for judging whether the telemetering signal is consistent with the output state value of the current SV virtual terminal, if so, the circuit is judged to be normal, and a circuit normal mark is filled in an information column of a simulation background of the test software; otherwise, judging that the loop state value is wrong, and filling loop abnormity or state value wrong identification in an information list of a simulation background of the test software;
a timing judgment unit: the simulation background of the test software is changed from the current SV virtual terminal to the rated value to start timing, whether corresponding MMS report service is received or not is judged after the set time, if so, the state value consistency judgment unit is returned; otherwise, judging that the loop of the current SV virtual terminal is abnormal, and filling a write-back loop abnormality or a telemetering signal non-existence identifier in a row corresponding to the input signal of the current SV virtual terminal in the information column of the simulation background of the test software;
an untested SV virtual terminal judgment unit: the SV virtual terminal testing unit is used for judging whether an SV virtual terminal which is not tested exists or not, if so, the SV virtual terminal is returned to the output value changing unit; otherwise, the test is finished.
In the device of the present invention, the configuring, by the configuring unit, configuring the MMS output information of the device under test includes: the test software sets attribute parameters of report control blocks corresponding to the data set measurement and control device and the protection device, and sets a trigger mode to be data change trigger only and enable data reference bits in option field parameters.
In the device of the present invention, the relationship between the dead zone value of the analog quantity sent by each analog background of the test software and the rated value is as follows: and the dead zone value of the analog quantity sent by each analog background of the test software is 5% of the rated value.
In the apparatus of the present invention, the set time is 5 seconds.
The intelligent substation SV virtual terminal closed-loop test method and the intelligent substation SV virtual terminal closed-loop test device have the following beneficial effects: because the input signal of the SV virtual terminal of the device to be tested is completed by importing the SCD file, the MMS output information of the device to be tested is configured by using test software, and meanwhile, the real-time state of the SV virtual terminal corresponding to the device to be tested is obtained by means of the MMS report service of the device to be tested to form closed-loop test, the problems that the SV virtual terminal test can not be completed in a closed loop mode, the test result needs to be manually inquired and the test efficiency is low in the existing test means are solved, the correctness of the test result needs to be manually judged in the existing test means, and the test result is automatically judged by the software, so that the test efficiency can be improved, the accuracy of the judgment of the test result is improved, and the safety and the reliability of.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a method in an embodiment of an SV virtual terminal closed-loop testing method of an intelligent substation of the present invention;
FIG. 2 is a software interface of the SV virtual terminal closed loop test process in the embodiment;
FIG. 3 is a schematic structural view of the apparatus in the embodiment;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the intelligent substation SV virtual terminal closed-loop testing method and device, the flow chart of the intelligent substation SV virtual terminal closed-loop testing method is shown in FIG. 1. In fig. 1, the intelligent substation SV virtual terminal closed-loop test method includes the following steps:
step S01 is to access the output terminal of the SV virtual terminal of the test device to the input terminal of the SV virtual terminal of the device under test through the ethernet: the method mainly comprises the steps of testing wiring, specifically, connecting an output end of an SV virtual terminal of a testing device into an input end of an SV virtual terminal of a device to be tested, and specifically, connecting the SV virtual terminal of the testing device with the device to be tested through an Ethernet.
Step S02, an SCD file is imported from the input end of the SV virtual terminal of the device to be tested, the input information of the device to be tested is configured through the SCD file, the MMS output information of the device to be tested is configured through the test software, and the relation between the dead zone value and the rated value of the simulation quantity sent by each simulation background of the test software is set: in this step, an SCD file is imported from an input end of an SV virtual terminal of the device under test, and input information of the device under test is configured through the SCD file, that is, the input information of the device under test is from the imported SCD file, and MMS output information of the device under test is configured through test software. Then, a relationship between the dead zone value (labeled db) of the analog quantity sent by each simulation background of the test software and the rated value is set, and in this embodiment, the relationship between the dead zone value of the analog quantity sent by each simulation background of the test software and the rated value is preferably: the dead zone value of the analog quantity sent by each analog background of the test software is 5% of the rated value, so that the data change can be triggered when the added analog quantity is changed from 0 to the rated value.
Step S03 initializes the state of each SV virtual terminal to zero: in this step, when the test is started, the state of each SV virtual terminal is initialized to zero.
Step S04 sequentially changes the output value of each SV virtual terminal to the rated value: in this step, the output value of each SV virtual terminal is changed to the rated value in sequence.
When the state of a certain SV virtual terminal is changed, step S05 determines whether the signal loop of the current SV virtual terminal is normal: in this step, when the state of a SV virtual terminal is changed, it is determined whether the signal loop of the current SV virtual terminal is normal, and if the result of the determination is yes, step S07 is executed; otherwise, step S06 is executed.
Step S06 does not trigger the corresponding MMS reporting service: if the determination result in the step S05 is no, that is, if the signal loop of the current SV virtual terminal is abnormal, the present step is executed. In this step, the corresponding MMS reporting service is not triggered. After the present step is executed, step S11 is executed.
Step S07, the telemetry signal triggered by the state value of the current SV virtual terminal is sent to the simulation background of the test software through the MMS report service: if the judgment result of the above step S05 is yes, the present step is executed. In this step, the telemetry signal triggered by the state value of the current SV virtual terminal is uploaded to the simulation background of the test software through the MMS report service. After the present step is executed, step S08 is executed.
Step S08 determines whether the output state value of the telemetry signal and the current SV virtual terminal are consistent: because the MMS report service only contains the remote sensing uploading information of the SV virtual terminal currently tested (namely the current SV virtual terminal), in the step, whether the value of the remote sensing signal is consistent with the output state value of the current SV virtual terminal is judged, if the result of the judgment is yes, the step S10 is executed; otherwise, step S09 is executed.
Step S09, determining that the loop state value is incorrect, and filling the loop anomaly or the state value incorrect flag in the information list of the simulation background of the test software: if the judgment result of the step S08 is no, that is, the value of the telemetry signal is not consistent with the output state value of the current SV virtual terminal, the present step is executed. In the step, the state value of the loop is judged to be wrong, and the loop abnormity or the state value wrong identification is filled in an information list of a simulation background of the test software. After the present step is executed, step S13 is executed.
Step S10, determining that the loop is normal, and filling a normal flag of the loop in the information column of the simulation background of the test software: if the determination result of the above step S08 is yes, that is, the value of the telemetry signal coincides with the output state value of the current SV virtual terminal, this step is executed. In this step, the loop is judged to be normal, and the normal identifier of the loop is filled in the information column of the simulation background of the test software. After the present step is executed, step S13 is executed.
Step S11, the simulation background of the test software starts to time when the current SV virtual terminal is changed to a rated value, and whether the corresponding MMS report service is received after the set time is judged: in this step, the simulation background of the test software starts timing when the current SV virtual terminal is changed to a rated value, and judges whether a corresponding MMS report service is received after a set time, if the judgment result is yes, step S08 is executed; otherwise, step S12 is executed. It should be noted that, in this embodiment, the set time is 5 seconds, and of course, in some other cases of this embodiment, the size of the set time may also be adjusted according to specific situations, for example: 4 seconds, 6 seconds, etc.
Step S12, determining that the loop of the current SV virtual terminal is abnormal, and filling a loop-back abnormality or a telemetering signal absence flag in a row corresponding to the input signal of the current SV virtual terminal in the information column of the simulation background of the test software: if the determination result of the step S11 is no, that is, if the setting time has passed, the corresponding MMS report service has not been received, the step is executed. In this step, the loop abnormality of the current SV virtual terminal is determined, and the loop abnormality is filled in the row corresponding to the input signal of the current SV virtual terminal in the information column of the simulation background of the test software or the identification that the telemetering signal does not exist is filled. After the present step is executed, step S13 is executed.
Step S13 judges whether there is any untested SV virtual terminal: in this step, it is judged whether there is an untested SV virtual terminal, and if the judgment result is yes, the process returns to step S04; otherwise, step S14 is executed.
Step S14 ends this test: if the judgment result of the above step S13 is no, the present step is executed. In this step, the test is ended.
The method completes input configuration and output of the SV virtual terminal of the device to be tested by importing the SCD file, and simultaneously acquires the real-time state of the SV virtual terminal corresponding to the device to be tested by means of MMS report service of the device to be tested to form closed-loop test. By realizing the closed-loop test of the SV virtual terminal, the problems that the SV virtual terminal test in the existing test means can not be completed in a closed loop manner, the test result needs to be manually inquired, and the test efficiency is low are solved. The accuracy of the test result needs to be judged manually in the existing test means, and the test result of the invention is automatically judged by software, so that the accuracy of judgment of the test result can be improved. The method is used as an effective checking means for consistency of the instantiation configuration of the intelligent device (IED) at the bay level of the intelligent substation and the SCD file.
It should be noted that, in the step S02, the configuring of the MMS output information of the device under test includes: the test software sets attribute parameters of report control blocks corresponding to a data set measuring and controlling device (dsAin) and a protection device (dsRelayAin), sets a trigger mode (TrgOps) to be data change only trigger (Bit is set to be 010000), and enables data reference bits (Bit is set to be 0000010000) in option field parameters.
Fig. 2 is a software interface of the SV virtual terminal closed-loop test process in this embodiment, and the test result can be seen from fig. 2.
The embodiment also relates to a device for realizing the intelligent substation SV virtual terminal closed-loop test method, and the structural schematic diagram of the device is shown in fig. 3. In fig. 3, the apparatus includes an ethernet access unit 1, a configuration unit 2, an initialization unit 3, an output value change unit 4, a loop determination unit 5, a state value consistency determination unit 6, a timing determination unit 7, and an untested SV virtual terminal determination unit 8; the Ethernet access unit 1 is used for accessing the output end of an SV virtual terminal of the test device to the input end of an SV virtual terminal of the device to be tested through Ethernet; the configuration unit 2 is used for importing an SCD file from an input end of an SV virtual terminal of the device to be tested, configuring input information of the device to be tested through the SCD file, configuring MMS output information of the device to be tested through test software, and setting a relation between a dead zone value and a rated value of the simulation quantity sent by each simulation background of the test software; the initialization unit 3 is configured to initialize the state of each SV virtual terminal to zero; the output value changing unit 4 is used for changing the output value of each SV virtual terminal into a rated value in sequence; the loop judgment unit 5 is used for judging whether a signal loop of a current SV virtual terminal is normal when the state of a certain SV virtual terminal is changed, and if so, sending a telemetering signal triggered by the state value of the current SV virtual terminal to a simulation background of test software through MMS report service; otherwise, the corresponding MMS reporting service is not triggered.
The state value consistency judging unit 6 is used for judging whether the telemetering signal is consistent with the output state value of the current SV virtual terminal, if so, judging that the loop is normal, and filling a loop normal identifier in an information column of a simulation background of the test software; otherwise, judging that the state value of the loop is wrong, and filling loop abnormity or state value wrong identification in an information list of a simulation background of the test software; the timing judgment unit 7 is used for changing the simulation background of the test software from the current SV virtual terminal to a rated value to start timing, judging whether the corresponding MMS report service is received after the set time, if so, returning to the state value consistency judgment unit; otherwise, judging that the loop of the current SV virtual terminal is abnormal, and filling the loop abnormality or the telemetering signal absence identifier in the corresponding row of the input signal of the current SV virtual terminal of the information column of the simulation background of the test software; the untested SV virtual terminal judging unit 8 is used for judging whether untested SV virtual terminals exist or not, if so, returning to the output value changing unit; otherwise, the test is finished. It should be noted that, in the apparatus of the present invention, the setting time is 5 seconds, but in some other cases of the embodiment, the size of the setting time may also be adjusted according to specific situations, for example: 4 seconds, 6 seconds, etc.
The device completes input configuration and output of the SV virtual terminal of the device to be tested by importing the SCD file, and simultaneously acquires the real-time state of the SV virtual terminal corresponding to the device to be tested by means of MMS report service of the device to be tested to form closed-loop test. By realizing the closed-loop test of the SV virtual terminal, the problems that the SV virtual terminal test in the existing test means can not be completed in a closed loop manner, the test result needs to be manually inquired, and the test efficiency is low are solved. The accuracy of the test result needs to be judged manually in the existing test means, and the test result of the invention is automatically judged by software, so that the accuracy of judgment of the test result can be improved. The method is used as an effective checking means for consistency of the instantiation configuration of the intelligent device (IED) at the bay level of the intelligent substation and the SCD file.
In this embodiment, in the configuration unit 2, the configuring of the MMS output information of the device under test includes: the test software sets attribute parameters of report control blocks corresponding to a data set measuring and controlling device (dsAin) and a protection device (dsRelayAin), sets a trigger mode (TrgOps) to be data change only trigger (Bit is set to be 010000), and enables data reference bits (Bit is set to be 0000010000) in option field parameters.
In the device of the invention, the relation between the dead zone value of the simulation quantity sent by each simulation background of the test software and the rated value is preferably as follows: the dead zone value of the analog quantity sent by each analog background of the test software is 5% of the rated value, so that the data change can be triggered when the added analog quantity is changed from 0 to the rated value.
In a word, the input configuration and the output of the SV virtual terminal of the device to be tested are completed through the imported SCD file, and meanwhile, the triggered MMS message is changed by means of the SV virtual terminal input data of the device to be tested to acquire the station control layer MMS information corresponding to the SV virtual terminal, so that closed-loop test is formed. In order to facilitate and visualize the test, the configuration of the test parameters, the test process and the test result are all operated on the visual virtual terminal wiring diagram. The method can efficiently and conveniently check the correctness of SV virtual terminals of the intelligent substation, eliminate potential security threats in the operation process of the intelligent substation, and improve the safety and reliability of the operation of a power grid. The method can be used as an effective checking means for consistency between instantiation configuration and SCD (substation configuration description) files of intelligent devices on the bay level of the intelligent substation. The method is beneficial to the detection and control of the SCD file in the processes of new construction, reconstruction, extension, operation and maintenance of the transformer substation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A closed loop test method for SV virtual terminals of an intelligent substation is characterized by comprising the following steps:
A) the output end of an SV virtual terminal of a test device is connected to the input end of an SV virtual terminal of a device to be tested through an Ethernet;
B) importing an SCD file from an input end of an SV virtual terminal of the device to be tested, configuring input information of the device to be tested through the SCD file, configuring MMS output information of the device to be tested through test software, and setting a relation between a dead zone value and a rated value of a simulation quantity sent by each simulation background of the test software;
C) initializing the state of each SV virtual terminal to zero;
D) sequentially changing the output value of each SV virtual terminal into the rated value;
E) when the state of a certain SV virtual terminal is changed, judging whether a signal loop of the current SV virtual terminal is normal, if so, sending a telemetering signal triggered by the state value of the current SV virtual terminal to a simulation background of the test software through MMS report service, and executing step F); otherwise, the corresponding MMS report service is not triggered, and step G) is executed;
F) judging whether the output state values of the telemetering signal and the current SV virtual terminal are consistent, if so, judging that the loop is normal, filling a normal mark of the loop in an information column of a simulation background of the test software, and executing a step H); otherwise, judging that the loop state value is wrong, filling loop abnormity or wrong state value identification in an information list of a simulation background of the test software, and executing the step H);
G) changing the current SV virtual terminal of the simulation background of the test software to the rated value to start timing, judging whether corresponding MMS report service is received after the set time, if so, returning to the step F); otherwise, judging that the loop of the current SV virtual terminal is abnormal, filling a write-back loop abnormal or telemetering signal non-existence identifier in a row corresponding to the input signal of the current SV virtual terminal of the information column of the simulation background of the test software, and executing the step H);
H) judging whether an SV virtual terminal which is not tested still exists, if so, returning to the step D); otherwise, the test is finished.
2. The intelligent substation SV virtual terminal closed loop test method according to claim 1, wherein in the step B), the configuring of the MMS output information of the device under test comprises: the test software sets attribute parameters of report control blocks corresponding to the data set measurement and control device and the protection device, and sets a trigger mode to be data change trigger only and enable data reference bits in option field parameters.
3. The intelligent substation SV virtual terminal closed-loop test method according to claim 1 or 2, wherein the relation between the dead zone value and the rated value of the analog quantity sent by each analog background of the test software is as follows: and the dead zone value of the analog quantity sent by each analog background of the test software is 5% of the rated value.
4. The intelligent substation SV virtual terminal closed loop test method as claimed in claim 1, wherein the set time is 5 seconds.
5. The device for realizing the intelligent substation SV virtual terminal closed-loop test method in claim 1 is characterized by comprising the following steps:
an Ethernet access unit: the SV virtual terminal testing device is used for connecting the output end of the SV virtual terminal of the testing device to the input end of the SV virtual terminal of the device to be tested through the Ethernet;
a configuration unit: the device comprises a test software, an SV virtual terminal and an SCD file, wherein the test software is used for importing the SCD file from the input end of the SV virtual terminal of the device to be tested, configuring the input information of the device to be tested through the SCD file, configuring the MMS output information of the device to be tested through the test software, and setting the relation between the dead zone value and the rated value of the simulation quantity sent by each simulation background of the test software;
an initialization unit: the method is used for initializing the state of each SV virtual terminal to zero;
an output value changing unit: the system is used for sequentially changing the output value of each SV virtual terminal into the rated value;
a loop judgment unit: the simulation background is used for judging whether a signal loop of a current SV virtual terminal is normal or not when the state of a certain SV virtual terminal is changed, if so, sending a telemetering signal triggered by the state value of the current SV virtual terminal to the test software through MMS report service; otherwise, the corresponding MMS report service is not triggered;
a state value coincidence determination unit: the circuit is used for judging whether the telemetering signal is consistent with the output state value of the current SV virtual terminal, if so, the circuit is judged to be normal, and a circuit normal mark is filled in an information column of a simulation background of the test software; otherwise, judging that the loop state value is wrong, and filling loop abnormity or state value wrong identification in an information list of a simulation background of the test software;
a timing judgment unit: the simulation background of the test software is changed from the current SV virtual terminal to the rated value to start timing, whether corresponding MMS report service is received or not is judged after the set time, if so, the state value consistency judgment unit is returned; otherwise, judging that the loop of the current SV virtual terminal is abnormal, and filling a write-back loop abnormality or a telemetering signal non-existence identifier in a row corresponding to the input signal of the current SV virtual terminal in the information column of the simulation background of the test software;
an untested SV virtual terminal judgment unit: the SV virtual terminal testing unit is used for judging whether an SV virtual terminal which is not tested exists or not, if so, the SV virtual terminal is returned to the output value changing unit; otherwise, the test is finished.
6. The apparatus according to claim 5, wherein the configuration unit configures the MMS output information of the device under test by using the method for realizing SV virtual terminal closed loop test of the intelligent substation according to claim 1, and comprises: the test software sets attribute parameters of report control blocks corresponding to the data set measurement and control device and the protection device, and sets a trigger mode to be data change trigger only and enable data reference bits in option field parameters.
7. The device for realizing the intelligent substation SV virtual terminal closed-loop test method as claimed in claim 1 as claimed in claim 5 or 6, wherein the relation between the dead zone value and the rated value of the analog quantity sent on each analog background of the test software is as follows: and the dead zone value of the analog quantity sent by each analog background of the test software is 5% of the rated value.
8. The device for realizing the intelligent substation SV virtual terminal closed loop test method as claimed in claim 1, characterized in that the set time is 5 seconds.
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| CN110703029B (en) * | 2019-11-06 | 2022-03-08 | 国网河北省电力有限公司保定供电分公司 | Fault detection system and method for primary and secondary systems of intelligent substation |
| CN115720206A (en) * | 2021-08-24 | 2023-02-28 | 南方电网数字电网研究院有限公司 | Intelligent substation reconstruction and extension SCD automatic test method based on simulation transmission |
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