CN112416758A - Integrated test system and method for intelligent substation - Google Patents
Integrated test system and method for intelligent substation Download PDFInfo
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- CN112416758A CN112416758A CN202011215391.0A CN202011215391A CN112416758A CN 112416758 A CN112416758 A CN 112416758A CN 202011215391 A CN202011215391 A CN 202011215391A CN 112416758 A CN112416758 A CN 112416758A
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Abstract
The invention discloses an integrated test system and method of an intelligent substation, which comprises an automatic test layer, a tester interface layer, a secondary development platform layer and a test tool, wherein the automatic test layer is used for testing the secondary development platform layer; the tester interface layer is used for connecting the interface of the tester with the tested device in a communication way; the automatic test layer is used for loading the test scheme of the secondary development platform layer and sending a simulation communication command, and the tested device generates corresponding work according to the simulation communication command to test the running condition of the tested device; the secondary development platform layer is used for editing and storing test schemes of different devices of the tested device, and specifically comprises a test template and a report template of the devices; the system level test of the intelligent substation is utilized to simultaneously simulate various operation conditions of a primary system and process level equipment of the whole substation, so that the overall test of a secondary system of the intelligent substation is realized, and the efficiency of the centralized integration test of the intelligent substation is improved.
Description
Technical Field
The invention relates to the technical field of transformer substation detection, in particular to an integrated testing system and method for an intelligent transformer substation.
Background
At the present stage, detection and debugging of secondary equipment of the intelligent substation, such as single interval debugging (mainly a protection interval), or single device debugging forming the interval, such as the protection interval, namely independent debugging of the intelligent terminal, the merging unit and the protection device, are mainly performed, and the mode is the debugging of the functions of the device body and lacks of the debugging of an interval system. The integrated testing tool for the intelligent transformer substation meets the testing requirement of an interval system by relying on the advantages of multiple testing optical ports.
The intelligent station secondary equipment is various in types, the operation and maintenance task is heavy, in the past, maintenance is performed on an interval, for example, a protection interval, an intelligent terminal tester, a merging unit tester, a relay protection tester and the like need to be carried, labor intensity is high, meanwhile, a plurality of staffs are consumed, the test mode free from the interval system is actually fragmentation and island test, interval test cannot be really realized, namely, debugging of a single-interval multi-device is limited to limitation of the number of optical interfaces of the tester and incompleteness of the type of the test equipment, a plurality of test instruments often need to be carried, only single-device function debugging separated from the interval system is carried out, and the intelligent station secondary equipment is large in workload and low in working efficiency, and has no correctness of signal interaction among all devices forming the interval due to closed-loop verification.
Disclosure of Invention
The invention aims to provide an integrated test system and method of an intelligent substation, and aims to solve the technical problems in the prior art.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
an integrated test system of an intelligent substation comprises an automatic test layer, a tester interface layer, a secondary development platform layer and a test tool;
the tester interface layer is used for connecting the interface of the test tool with the tested device in a communication way;
the secondary development platform layer is used for storing test schemes edited in advance according to different types of tested devices, and the test schemes comprise test templates and report templates;
the automatic test layer is used for loading the test scheme of the secondary development platform layer and sending a simulation communication command to the test tool, and the test tool executes corresponding work according to the simulation communication command to test the running condition of the device to be tested.
Optionally, the secondary development platform layer is configured to generate the test template according to a test case established in a preset case template library and protection principles of different types of devices under test, and is further configured to generate different test schemes based on the test template and requirements, where the test schemes include a simulated communication command.
Optionally, the automatic test layer includes an automatic test center and a communication engine unit, the automatic test center is configured to open the test scheme of the secondary development platform layer and extract a simulated communication command in the test scheme, the automatic test center is configured to issue the test scheme to the test tool through the tester interface layer, the test tool is configured to generate a GOOSE export message and an MMS message based on the test scheme, and the device under test is configured to receive the GOOSE export message and the MMS message of the test tool to implement a corresponding test operation, and finally generate running data.
Optionally, the automatic test center calls an MMS message analysis program based on the MMS message of the device under test by using the communication engine unit, compares and analyzes the monitoring result of the test tool based on the MMS message analysis program to complete the closed-loop automatic test, and is further configured to fill the running data into the test scheme correspondingly to generate a standard report and store the standard report in a system test record library.
Optionally, the automatic test center issues the test solution to the test tool through the tester interface layer, the automatic test center controls the test tool to output a message or a hard contact signal to the device under test and simultaneously receives a GOOSE or a hard contact signal of the device under test, and the automatic test center obtains a delay result by calculating the GOOSE or the hard contact signal to complete a closed-loop automatic test.
Optionally, the automatic test center issues the test scheme to the test tool through the tester interface layer, controls the test tool to output a message to the device under test, and receives an SV message output by the device under test; and the automatic test center is also used for obtaining a test result by comparing the SV message with the related indexes of the test template so as to finish the closed-loop automatic test.
In order to solve the above technical problems, the present invention further provides the following technical solutions: an integrated test method of an intelligent substation comprises the following steps:
step 100, adding a power amplifier module on a test tool to output a digital detection signal and an analog detection signal in a mixed manner, so as to realize the digital-analog signal integrity of the test tool;
200, forming a hard contact point between the testing tool and the mechanism to be tested, and outputting a detection signal by using the testing tool to trigger the mechanism to be tested to act so as to test the operation condition of the mechanism to be tested;
and 300, receiving the state change time of the mechanism to be detected according to the automatic test center, detecting the response time of the mechanism to be detected, and completing the closed-loop automatic test.
Optionally, in step 100, the software architecture of the testing tool includes a plug-in management module, a computing module, and a communication module, where the plug-in management module is mainly responsible for creating the graph and the attribute and providing all registered elements to the outside, the computing module is configured to obtain connection states of all elements in the current view and update the voltage level according to settings, the computing module is configured to verify that a model in the graph meets computing requirements, and the communication module is responsible for converting the graph into XML and sending the XML to the mechanism to be detected through a TCP protocol and receiving a reply of the mechanism to be detected.
Optionally, in step 200, an automatic test center is used to call an MMS message analysis program of the mechanism to be tested, and the received result is compared with standard data and analyzed in the automatic test center, so as to complete the closed-loop automatic test.
Optionally, in step 300, the automatic test center issues a test scheme to the test tool through an interface program, drives the test tool to output a message or a hard contact signal to the mechanism to be tested, and receives a GOOSE or a hard contact signal of the mechanism to be tested, and the automatic test center obtains a delay result through calculation to complete the closed-loop automatic test.
Compared with the prior art, the invention has the following beneficial effects:
the invention breaks through the traditional fragmentization and island type interval testing device, the systematic interval testing is thorough, the correctness and the rationality of the interactive information between the devices are comprehensively checked, the actual interval testing is realized, the system level testing of the intelligent station is utilized to simultaneously simulate various operating conditions of a primary system of the total station and process layer equipment, the overall testing of a secondary system of the intelligent substation is realized, the efficiency of the centralized integration testing of the intelligent substation is improved, whether the total station protection has abnormal action behaviors such as misoperation, refusal action, override action and the like under the network background is verified, the overall testing of the whole interval layer device is realized, the testing period is short, and the testing content is comprehensive.
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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. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a block diagram of an integrated detection system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an integrated detection method according to an embodiment of the present invention.
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.
As shown in fig. 1, the invention provides an integrated test system of an intelligent substation, which comprises an automatic test layer, a tester interface layer, a secondary development platform layer and a test tool.
The tester interface layer is used for connecting the interface of the test tool with the tested device in a communication way; the secondary development platform layer is used for storing test schemes edited in advance according to different types of tested devices, and the test schemes comprise test templates and report templates; the automatic test layer is used for loading the test scheme of the secondary development platform layer and sending a simulation communication command to the test tool, and the test tool executes corresponding work according to the simulation communication command to test the running condition of the device to be tested.
The secondary development platform layer is used for generating a test template according to test cases established by a preset case template library and protection principles of different types of tested devices, and is also used for generating different test schemes based on the test template and requirements, wherein the test schemes comprise simulated communication commands.
The automatic test layer comprises an automatic test center and a communication engine unit, the automatic test center is used for opening a test scheme of the secondary development platform layer and extracting a simulation communication command in the test scheme, the automatic test center is used for issuing the test scheme to a test tool through a tester interface layer, the test tool is used for generating a GOOSE outlet message and an MMS message based on the test scheme, and the tested device is used for receiving the GOOSE outlet message and the MMS message of the test tool to implement corresponding test operation and finally generating running data.
The automatic test center calls an MMS message analysis program based on the MMS message of the tested device by utilizing the communication engine unit, and compares the monitoring result of the analysis test tool based on the MMS message analysis program to complete the closed-loop automatic test, and is also used for correspondingly filling the running data into the test scheme to generate a standard report and storing the standard report in a system test record library.
The automatic test center issues a test scheme to the test tool through the tester interface layer, the automatic test center drives the test tool to output a message or a hard contact signal to the tested device and simultaneously receives a GOOSE or a hard contact signal of the tested device, and the automatic test center calculates the GOOSE signal or the hard contact signal to obtain a time delay result to complete the closed-loop automatic test.
For the automatic test of the merging unit and the switch, a test case is established in a case template library, for example, the template settings such as the SV message frame loss rate template setting of the merging unit and the switch frame loss rate are set, and a test template of the device is formed by editing and modifying a test scheme development platform; the tests of the network switch mainly include time delay, frame loss rate and the like, and the closed-loop mode of the network switch can be realized only by receiving messages sent by the network switch by a tester for analysis.
The automatic test center issues a test scheme to the test tool through the interface layer of the tester, drives the test tool to output a message to the tested device and automatically receives an SV message output by the tested device, and obtains a test result by comparing the SV message with relevant indexes of the test template to complete closed-loop automatic test.
For automatic test of wave recording and network division, a test case is established in a case template library, for example, template setting is carried out on the time delay test of the starting wave recording action, the waveform precision test and the fault distance measurement test of a wave recording device, template setting of the current and voltage sampling precision test of a network analysis device is set, and the set template is edited and modified through a test scheme development platform to form a test template of the device.
In one optional implementation mode, the testing principle of the wave recording part function of the intelligent wave recorder is as follows:
the wave recording part of the intelligent wave recorder comprises three parts of current and voltage precision verification, action value precision verification and fault information recording accuracy verification. For current and voltage precision verification, the test tool outputs analog quantity to the acquisition unit, the corresponding branch sampling value is checked in the wave recording management unit, and the error meets the standard of the south network intelligent wave recorder, namely the verification is qualified; for the precision check of the action value, the testing tool outputs a break variable or a step variable (increasing or decreasing) until the wave recording action, and if the error of the action value meets the standard of the south network intelligent wave recorder, the check is qualified; and for the calibration of the recording accuracy of the fault information, the test tool simulates various types of faults and outputs the faults to the acquisition unit, meanwhile, standard fault distance measurement is set, and if the information displayed by the recording management unit is consistent with a set value or meets the error range, the calibration is qualified.
For example, the testing of the relay protection device, wherein the functional testing part can cover the following testing ranges:
and (3) verification of line protection: longitudinal protection, current differential protection, distance protection, zero sequence protection, PT disconnection overcurrent protection, overcurrent protection inspection, three-phase inconsistency, acceleration after reclosing and the like.
Bus protection: differential protection, failure protection, bus coupling (subsection) dead zone protection, bus coupling (subsection) charging protection, bus coupling (subsection) overcurrent protection and bus coupling (subsection) three-phase inconsistency protection.
Protecting the transformer: differential protection, impedance protection, zero-sequence overcurrent protection, gap zero-sequence overcurrent and overvoltage protection, composite pressure locking direction overcurrent protection, overload starting air cooling locking pressure regulation and zero-sequence overvoltage protection.
Based on the foregoing embodiment, as shown in fig. 2, an embodiment of the present invention further provides an integrated testing method for an intelligent substation, including the following steps:
step 100, adding a power amplifier module on the test tool to output a digital detection signal and an analog detection signal in a mixed manner, so as to realize the digital-analog signal integrity of the test tool.
On the basis of the comprehensive automation of the existing transformer substation, the intelligent transformer substation develops towards the direction of high integration, digitalization, informatization and standard unification, is a whole formed by combining through a network according to function division, and the single test of any equipment cannot reflect the characteristics of the whole transformer substation. The system must be utilized during testing of the intelligent substation.
The system level test tool overall structure comprises a graphical interface unit, a model and parameter management unit, a real-time digital simulation unit, a collected data analysis unit and a simulation data conversion unit. The functions of each part are as follows:
1) graphical interface unit: providing a graphical power system modeling tool for editing a primary wiring diagram, setting element parameters, controlling operation and the like;
2) model and parameter management unit: a model for managing the power system wiring diagram and its parameters;
3) a real-time digital simulation unit: on the basis of the existing model, real-time calculation is carried out, the operation of the power system is simulated, real-time simulation data is output, and meanwhile, feedback information from the system to be tested is monitored to update the simulation data in real time;
4) the collected data analysis unit: analyzing the acquired data, converting the data into a format required by corresponding state information in the model, and transmitting the format to the real-time digital simulation unit;
5) the simulation data conversion unit: and converting the simulation data generated by the real-time digital simulation unit into a format required by output data.
6) Virtual switch box: the function is to replace the intelligent terminal and the circuit breaker to participate in the test. The virtual circuit breaker of the virtual switch box is equivalent to a primary part, corresponds to a total station simulation system of the system level tester, and needs to have two attributes of on-off time (time delay) and three-phase split-phase switch. The digital quantity and switching value conversion unit is responsible for converting the received GOOSE into switching analog quantity to control the on-off of the virtual circuit breaker, and converting the position of the virtual circuit breaker into a GOOSE message to be transmitted to a network.
The software architecture of the testing tool comprises a plug-in management module, a calculation module and a communication module, wherein the plug-in management module is mainly responsible for creating graphs and attributes and providing all registered elements to the outside, the calculation module is used for acquiring the connection states of all the elements in the current view and updating the voltage level according to the setting, the calculation module is used for verifying that the model in the graphs meets the calculation requirement, and the communication module is responsible for converting the graphs into XML and sending the XML to the mechanism to be detected through a TCP protocol and receiving the reply of the mechanism to be detected.
200, opening a hard contact point between a testing tool and the mechanism to be tested, and outputting a detection signal by using the testing tool to trigger the mechanism to be tested to act so as to test the operation condition of the mechanism to be tested;
and 300, receiving the state change time of the mechanism to be detected according to the automatic test center, detecting the response time of the mechanism to be detected, and completing the closed-loop automatic test.
In step 200, the automatic test center is used to call the MMS message analysis program of the mechanism to be tested, and the automatic test center compares and analyzes the received result with the standard data to complete the closed-loop automatic test.
In step 300, the automatic test center issues a test scheme to the test tool through the interface program, drives the test tool to output a message or a hard contact signal to the mechanism to be tested, and receives a GOOSE or a hard contact signal of the mechanism to be tested, and the automatic test center obtains a time delay result through calculation to complete the closed-loop automatic test.
In summary, the specific implementation flow for implementing the integrated automatic test is as follows:
1) inputting a primary model for the system, wherein the primary model comprises a bus, a line, a transformer, a mutual inductor, a breaker and other primary equipment, setting a fault position and a fault type, obtaining voltage and current information of the mutual inductor through steady-state tide and short circuit according to the current position information of the breaker, and outputting the position information of the breaker.
2) The system simulates a merging unit and an intelligent terminal of a process layer, and carries out the following association according to a configuration file of an intelligent substation: correlation of the mutual inductor and the merging unit; and associating the breaker position and the protection action signal with the intelligent terminal.
3) After the association in the step 2) is completed, the simulated merging unit and the intelligent terminal output the data calculated in the step 1) to secondary equipment such as a relay protection device, a measurement and control device and the like. The voltage and current information of the transformer is output in an FT3 or IEC61850-9-2 mode, and the position information of the circuit breaker is output in a GOOSE message.
4) The system receives GOOSE and MMS messages sent by a relay protection test tool, extracts protection action signals in the messages, changes position information of a circuit breaker according to test requirements, and recalculates voltage and current information of a mutual inductor, namely step 1), so that closed loop test is formed.
The intelligent substation system level test simultaneously simulates various operation working conditions of a primary system and process layer equipment of the whole substation, realizes the overall test of a secondary system of the intelligent substation, improves the efficiency of the centralized integration test of the intelligent substation, simultaneously realizes the verification of whether abnormal action behaviors such as misoperation, refusal action, override action and the like exist in the protection of the whole substation under the network background, realizes the overall test of the whole bay level device, and has short test period and comprehensive test contents.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. An integrated test system of an intelligent substation is characterized by comprising an automatic test layer, a tester interface layer, a secondary development platform layer and a test tool;
the tester interface layer is used for connecting the interface of the test tool with the tested device in a communication way;
the secondary development platform layer is used for storing test schemes edited in advance according to different types of tested devices, and the test schemes comprise test templates and report templates;
the automatic test layer is used for loading the test scheme of the secondary development platform layer and sending a simulation communication command to the test tool, and the test tool executes corresponding work according to the simulation communication command to test the running condition of the device to be tested.
2. The integrated testing system of the intelligent substation of claim 1, wherein the secondary development platform layer is configured to generate the testing template according to a testing case established in a preset case template library and protection principles of different types of devices to be tested, and is further configured to generate different testing schemes based on the testing template and requirements, wherein the testing schemes include simulated communication commands.
3. The integrated testing system of the intelligent substation of claim 2, wherein the automatic testing layer comprises an automatic testing center and a communication engine unit, the automatic testing center is configured to open the testing scheme of the secondary development platform layer and extract a simulated communication command in the testing scheme, the automatic testing center is configured to issue the testing scheme to the testing tool through the tester interface layer, the testing tool is configured to generate GOOSE export messages and MMS messages based on the testing scheme, and the device under test is configured to receive the GOOSE export messages and MMS messages of the testing tool to implement corresponding testing operations and finally generate operating data.
4. The integrated testing system of the intelligent substation according to claim 3, wherein the automatic testing center calls an MMS message analysis program based on the MMS message of the device under test by using the communication engine unit, and compares and analyzes the monitoring result of the testing tool based on the MMS message analysis program to complete a closed-loop automatic test, and is further used for correspondingly filling the operating data into the testing scheme to generate a standard report and storing the standard report in a system testing record base.
5. The integrated testing system of the intelligent substation of claim 3, wherein the automatic testing center issues the testing scheme to the testing tool through the tester interface layer, the automatic testing center controls the testing tool to output a message or a hard contact signal to the device under test and simultaneously receive a GOOSE or a hard contact signal of the device under test, and the automatic testing center calculates the GOOSE or the hard contact signal to obtain a time delay result so as to complete the automatic closed-loop test.
6. The integrated test system of the intelligent substation of claim 3, wherein the automatic test center issues the test scheme to the test tool through the tester interface layer, controls the test tool to output a message to the device under test, and receives an SV message output by the device under test; and the automatic test center is also used for obtaining a test result by comparing the SV message with the related indexes of the test template so as to finish the closed-loop automatic test.
7. An integrated testing method of an intelligent substation is realized based on the integrated testing system of the intelligent substation as claimed in any one of claims 1 to 6, and is characterized by comprising the following steps:
step 100, adding a power amplifier module on a test tool to output a digital detection signal and an analog detection signal in a mixed manner, so as to realize the digital-analog signal integrity of the test tool;
200, forming a hard contact point between the testing tool and the mechanism to be tested, and outputting a detection signal by using the testing tool to trigger the mechanism to be tested to act so as to test the operation condition of the mechanism to be tested;
and 300, receiving the state change time of the mechanism to be detected according to the automatic test center, detecting the response time of the mechanism to be detected, and completing the closed-loop automatic test.
8. The integrated testing method of the intelligent substation according to claim 7, wherein in step 100, the software architecture of the testing tool includes a plug-in management module, a calculation module and a communication module, the plug-in management module is mainly responsible for creating graphs and attributes and providing all registered elements to the outside, the calculation module is used for acquiring connection states of all elements in a current view and updating voltage levels according to settings, the calculation module is used for verifying that models in the graphs meet calculation requirements, and the communication module is responsible for converting the graphs into XML and sending the XML to a mechanism to be tested through a TCP protocol and receiving replies of the mechanism to be tested.
9. The integrated testing method of the intelligent substation according to claim 7, wherein in step 200, an automatic testing center is used to call an MMS message analysis program of the mechanism to be tested, and the automatic testing center performs a closed-loop automatic test by comparing and analyzing a received result with standard data.
10. The integrated testing method of the intelligent substation according to claim 7, wherein in step 300, the automatic testing center issues a testing scheme to the testing tool through an interface program, drives the testing tool to output a message or a hard contact signal to the mechanism to be tested, and receives a GOOSE or a hard contact signal of the mechanism to be tested, and the automatic testing center calculates a time delay result to complete the closed-loop automatic testing.
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| CN113884126A (en) * | 2021-09-28 | 2022-01-04 | 许昌许继软件技术有限公司 | Automatic test system supporting multiple modes |
| CN114170878A (en) * | 2021-11-12 | 2022-03-11 | 安徽继远软件有限公司 | Equipment maintenance test system and method for novel intelligent substation |
| CN114184865A (en) * | 2021-12-07 | 2022-03-15 | 武汉中元华电电力设备有限公司 | Intelligent oscillograph testing device |
| CN114184864A (en) * | 2021-12-07 | 2022-03-15 | 武汉中元华电电力设备有限公司 | Intelligent oscillograph test method and system |
| CN114184864B (en) * | 2021-12-07 | 2024-05-14 | 武汉中元华电电力设备有限公司 | Intelligent recorder test method and system |
| CN114374272A (en) * | 2021-12-17 | 2022-04-19 | 国网浙江省电力有限公司金华供电公司 | Automatic maintenance method for intelligent substation |
| CN114374272B (en) * | 2021-12-17 | 2023-08-29 | 国网浙江省电力有限公司金华供电公司 | Automatic overhaul method for intelligent substation |
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