CN110865262A - Universal test method, device and equipment for relay protection tester and storage medium - Google Patents
Universal test method, device and equipment for relay protection tester and storage medium Download PDFInfo
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Abstract
The application discloses a general test method, device equipment and a storage medium of a relay protection tester, wherein the method comprises the following steps: establishing basic operation for generating a relay protection test case; setting a test sequence according to the basic operation; generating a test item; generating a relay protection test case according to the test items; storing the compiled relay protection test cases into an xml format, and setting DLL interface modules for the testers; and setting test background software to interact with a tested instrument through an IEC61850 protocol, an IEC61870 protocol and a Modbus protocol, and to interact with a measurement meter through an SCPI. The method and the device solve the problems that when the tester in the prior art is replaced, the test background software needs to be replaced and the test cases need to be regenerated; and the technical problem that the test background software cannot interact with different testers, tested equipment and measuring meters is solved.
Description
Technical Field
The present application relates to the field of tester technologies, and in particular, to a general testing method, device, and storage medium for a relay protection tester.
Background
With the development of microcomputer relay protection instrument technology, no matter the operation site or the relay protection testing mechanism has various testers, such as Onlie, Bo-Shi-Feng, Omicron and the like, background software used by different testers is different, so that a test case compiled by one testing software is not suitable any more when the testers are changed, and needs to be compiled again; the method for compiling the test case of different background software is different, and the technical problem that the compiling method needs to be learned again when the tester or the tester changes is solved;
moreover, at present, the tester background software of each manufacturer can only realize interaction with the tester, output of analog quantity and input and output of switching value, and cannot realize communication with the tested relay protection device, so that the functions of customized pressing plate modification, action information acquisition, telemetering reading, remote signaling deflection checking and the like of the tested protection device are realized; on the other hand, in the relay protection test process, some high-precision meters are often required to be matched for testing, and the current test background software cannot interact with the measurement meters, so that meter test data can be automatically recorded.
Disclosure of Invention
The application provides a universal test method, device and storage medium for a relay protection tester, and solves the problems that in the prior art, when the tester is replaced, background software of the tester needs to be replaced and a test case needs to be regenerated; and the technical problem that the test background software cannot interact with different testers, tested equipment and measuring meters is solved.
The application provides a general test method of a relay protection tester in a first aspect, which comprises the following steps:
establishing basic operation for generating a relay protection test case;
setting a test sequence according to the basic operation;
generating a test item;
generating the relay protection test case according to the test items;
storing the compiled relay protection test case into an xml format, and setting DLL interface modules for the testers;
and setting test background software to interact with the tested equipment through an IEC61850 protocol, an IEC61870 protocol and a Modbus protocol, and to interact with the measurement meter through an SCPI.
Optionally, the basic operations include setting a voltage current value, setting a system impedance, setting a switching value output, setting a step change, setting a time delay, setting a GPS trigger, setting an interrupt.
Optionally, the setting the step-change comprises setting the amplitude and phase of each phase, setting the amplitude and phase of the sequence component, setting the harmonic value, setting the value of the direct current component.
Optionally, the setting a test sequence according to the basic operation specifically includes:
setting the state of the test in each time period and the interruption condition of the test according to the basic operation;
and arranging and combining the states of the time periods and the interruption conditions according to the relay protection detection conditions and the detection rules to form a test sequence.
Optionally, the generating the test item specifically includes: modifying parameters of the tested device; applying a test state to the device under test; data of the meter for testing the device under test is acquired.
Optionally, the measurement gauge comprises:
multifunctional multimeter and power analyzer.
This application second aspect provides a general testing arrangement of relay protection tester, includes:
the establishing module is used for establishing basic operation for generating a relay protection test case;
a test sequence setting module for setting a test sequence according to the basic operation;
the test item generation module is used for generating test items;
the test case generation module is used for generating the relay protection test case according to the test items;
the storage module is used for storing the compiled relay protection test case into an xml format and setting DLL interface modules for the background test equipment;
and the interaction module is used for setting the test background software to interact with the tested equipment through an IEC61850 protocol, an IEC61870 protocol and a Modbus protocol, and to interact with the measurement meter through an SCPI.
Optionally, the test sequence setting module is specifically configured to:
setting the state of the test in each time period and the interruption condition of the test according to the basic operation;
and arranging and combining the states of the time periods and the interruption conditions according to the relay protection detection conditions and the detection rules to form a test sequence.
A third aspect of the present application provides a universal test device for a relay protection tester, the device comprising a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the general test method of the relay protection tester according to the first aspect according to instructions in the program code.
A fourth aspect of the present application provides a computer-readable storage medium for storing program codes for executing the general testing method of the relay protection tester of the first aspect.
According to the technical scheme, the embodiment of the application has the following advantages:
the application provides a general test method of a relay protection tester, which comprises the following steps:
establishing basic operation for generating a relay protection test case;
setting a test sequence according to the basic operation;
generating a test item;
generating the relay protection test case according to the test items;
storing the compiled relay protection test case into an xml format, and setting DLL interface modules for background test equipment;
and setting test background software to interact with the tested equipment through an IEC61850 protocol, an IEC61870 protocol and a Modbus protocol, and to interact with the measurement meter through an SCPI.
According to the general test method of the relay protection tester, the test cases integrating all basic operations are established, so that for the test of the same type of protection device, when the tester changes, the test software does not need to be replaced and the test cases do not need to be regenerated; moreover, the compiled test case is stored into an xml uniform format, and a DLL interface module is arranged on the tester, so that different interface modules can be called when different testers are connected through the same test background software, the test case is translated into an instruction which can be executed by the tester, and the test is carried out; the test background software can interact with the tested equipment through an IEC61850 protocol, an IEC61870 protocol and a Modbus protocol, and can interact with the measurement meter through an SCPI protocol. The method and the device solve the problems that in the prior art, when the tester is replaced, the background software of the tester needs to be replaced and the test case needs to be regenerated; and the technical problem that the test background software cannot interact with the tester and the measuring meter.
Drawings
Fig. 1 is a schematic flowchart of an embodiment of a general test method of a relay protection tester provided in the present application;
fig. 2 is a schematic flowchart of another embodiment of a general test method of a relay protection tester provided in the present application;
fig. 3 is a schematic structural diagram of a general testing device of a relay protection tester provided in the present application;
fig. 4 is a schematic diagram illustrating a basic operation of generating a test case according to an embodiment of a general test method for a relay protection tester provided in the present application;
fig. 5 is a schematic diagram of a test sequence generated by another embodiment of a general test method for a relay protection tester provided in the present application;
fig. 6 is a schematic diagram of test items generated according to an embodiment of a general test method for a relay protection tester provided in the present application;
fig. 7 is a schematic diagram of a test case generation method according to an embodiment of a general test method for a relay protection tester provided in the present application;
fig. 8 is a tree structure diagram of a test case of an embodiment of a general test method for a relay protection tester provided in the present application;
fig. 9 is an interface schematic diagram of a test case of an embodiment of a general test method for a relay protection tester provided in the present application;
fig. 10 is a schematic diagram illustrating interaction between background software and a tester according to an embodiment of a general testing method for a relay protection tester provided in the present application;
fig. 11 is a schematic diagram illustrating a translation of the same test case into different tester languages according to an embodiment of a general test method for a relay protection tester provided in the present application;
fig. 12 is a schematic diagram illustrating interaction between background software, a device under test and a measurement meter according to an embodiment of a general test method for a relay protection tester provided in the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
According to the universal test method, the device and the storage medium for the relay protection tester, the problems that in the prior art, when the tester is replaced, background software of the tester needs to be replaced and a test case needs to be regenerated are solved; and the technical problem that the test background software cannot interact with different testers, tested equipment and a measuring meter.
Referring to fig. 1, fig. 1 is a schematic flowchart of an embodiment of a general test method of a relay protection tester provided in the present application.
The first aspect of the embodiment of the present application provides a general test method for a relay protection tester, including:
100, establishing basic operation for generating a relay protection test case;
it should be noted that, the generation of a relay protection test case is combined from the most basic operations, and therefore, all the most basic operations need to be established first to establish a relay protection test case.
200, setting a test sequence according to basic operation;
it should be noted that, by the generated basic operation, the state and the interrupt condition of each time period of the test can be set, and the test state and the interrupt condition are arranged and combined according to the relay protection detection condition and the detection rule, so that a test sequence can be formed.
300, generating a test item;
it should be noted that the content of generating a test item includes links such as modifying parameters of the device, adding test states, and reading meter data.
400, generating a relay protection test case according to the test items;
in addition, taking the transformer as an example, the following steps can be performed:
1. parameters of the protection to be detected (such as parameters of fixed values, pressure plates and the like) are modified, and the operations can be completed by an IEC61850 background, an IEC61870 background and the like;
2. applying a test state, which may be done by a test sequence;
3. and reading the data of the measurement meter, wherein the operations can be performed by a Modbus background and an SCPI background.
The above steps establish test items for different protection functions (such as ratio differential protection or differential quick-break protection) of the protection device, test contents of the protection functions together form a test case of the transformer protection device, a flow chart of the generated test case is shown in fig. 7, a tree structure diagram of the test case of an embodiment of the general test method for the relay protection tester provided by the present application is shown in fig. 8, and an interface schematic diagram of the test case of an embodiment of the general test method for the relay protection tester provided by the present application is shown in fig. 9.
500, storing the compiled relay protection test cases into an xml format, and setting DLL interface modules for the testers;
it should be noted that, as shown in fig. 11, the same test case of an embodiment of the general test method for a relay protection tester provided by the present application is translated into a schematic diagram of different tester languages; the used testers are provided with interface functions, but interface differences among the testers are not large, corresponding translation programs are compiled aiming at different tester interfaces, and the testers are used for completing the content of test cases by the same test case through the translation programs; background test software carries out the unified establishment of test case, and the test case of accomplishing of establishment is saved into the unified format of xml, and DLL interface module is to the translation program of different testers, connects different testers promptly and transfers different interface modules, translates the test case into the instruction that the tester can execute, and simultaneously, the execution result of tester also returns back to background test software through interface module translation. In the relay protection test, on one hand, a tester is required to apply analog quantity, switching value and the like to a device to be tested, and on the other hand, a high-precision meter is also required to perform measurement, such as a multi-purpose multimeter (keygage 34410), a power analyzer (YOKOGAWA WT series) and the like. The background software interacts with the measurement meter through an SCPI communication protocol (Standard Commands for Programmable Instruments), and the issuing of Commands and the reading of measurement results are realized.
And 600, setting the test background software to interact with the tested equipment through an IEC61850 protocol, an IEC61870 protocol and a Modbus protocol, and to interact with the measurement meter through an SCPI.
It should be noted that, as shown in fig. 10, a schematic diagram of interaction between background software of an embodiment of the general test method for a relay protection tester and the tester and a schematic diagram of interaction between background software of an embodiment of the general test method for a relay protection tester, the device to be tested and a measurement meter are shown in fig. 12; information interaction is carried out between the test background software and the tested equipment through an IEC61850 protocol, an IEC61870 protocol, a Modbus protocol and the like, and the operations of protection constant value modification, pressing plate switching, recording wave calling, telemetering reading, remote control and the like are realized.
Further, the basic operations include setting voltage current values, setting system impedance, setting switching value output, setting transmutation, setting time delay, setting GPS trigger, and setting interrupt.
For convenience of understanding, please refer to fig. 4, which is a schematic diagram illustrating a basic operation of generating a test case according to an embodiment of a general test method for a relay protection tester provided in the present application. As can be seen from the figure, the basic operations include: setting voltage current value, setting system impedance, setting switching value output, setting transmutation, setting time delay, setting GPS trigger and setting interruption. The set impedance value includes a value for setting a fixed voltage, a value for setting a fixed current, and a value for setting a fixed impedance.
Further, setting the step-change includes setting the amplitude and phase of each phase, setting the amplitude and phase of the sequence component, setting the harmonic value, and setting the value of the dc component.
The setting of the gradient is divided into setting of the amplitude and phase of each phase, setting of the amplitude and phase of the sequence component, setting of the harmonic value, and setting of the value of the direct current component.
For ease of understanding, please refer to Table 1 for basic operations to generate test cases
TABLE 1 basic operations for generating test cases
For easy understanding, please refer to fig. 5, which is a schematic diagram of a test sequence generated by another embodiment of a general test method of a relay protection tester provided in the present application.
Further, setting the test sequence according to the basic operation specifically includes:
210, setting the state of the test in each time period and the interruption condition of the test according to the basic operation;
220, according to the relay protection detection condition and the detection rule, the states and the interruption conditions of all time periods are arranged and combined to form a test sequence.
It should be noted that, by the generated basic operation, the state and the interrupt condition of each time period of the test can be set, and the test state and the interrupt condition are arranged and combined according to the relay protection detection condition and the detection rule, so that a test sequence can be formed. Illustratively, the order of composition of a test sequence is:
1. add pre-trial status (done by "setValue set-point");
2. add pre-trial state duration (done by "Delay");
3. add on-test state (done by "setValue set value", "setZ impedance calculation", or "incremental/gradual change of IncValue value");
4. add trial-time state duration (done by "Delay");
5. add interrupt conditions (done by "break if conditional interrupt");
6. add post-test status (done by "setValue set-point");
7. post-trial state durations (completed by the "Delay" operation) were added.
By sequentially combining all the above states, a test sequence as shown in fig. 5 can be formed.
Further, generating the test item specifically includes: modifying parameters of the tested device; applying a test state to the device under test; data of a meter for testing a device under test is acquired.
It should be noted that the content of generating a test item includes links such as modifying parameters of the device, adding test states, and reading meter data. The order in which the test items are generated is:
1. parameters of the protection to be detected (such as parameters of fixed values, pressure plates and the like) are modified, and the operations can be completed by an IEC61850 background, an IEC61870 background and the like;
2. applying a test state, which may be done by a test sequence;
3. and reading the data of the measurement meter, wherein the operations can be performed by a Modbus background and an SCPI background.
Taking the test of the transformer protection device as an example, one transformer protection device generally has tens of protection functions, such as ratio differential protection, differential quick-break protection, high-backup re-voltage overcurrent protection I section, etc., according to the specification of the detection rule, the detection mechanism needs to detect the full range of the protection functions, that is: the minimum value and the maximum value need to be detected, and an intermediate fixed value is extracted and detected, taking the test of the fixed value of the current of the I section of the high-backup re-voltage overcurrent protection as an example, the range of the fixed value of the current of the I section of the high-backup re-voltage overcurrent protection is 0.05A-20A, and the detection mechanism respectively carries out the action fixed value test on the three fixed values of 0.05A, 1A and 20A according to the phase of A, B, C. During testing, test items are respectively generated according to A, B, C phases for the current constant values of 0.05A, 1A and 20A, and the test items form the test content of high-backup re-voltage overcurrent I-section protection. The generated test items of the high backup re-voltage over-current protection I section are shown in FIG. 6.
Further, the measuring meter includes:
multifunctional multimeter and power analyzer.
It should be noted that the tester includes mainstream testers, such as RTbasic, Omicron, arit, and boeing.
For easy understanding, please refer to fig. 3, which is a schematic structural diagram of a relay protection tester apparatus provided in the present application;
a second aspect of the embodiments of the present application provides a universal test method for a relay protection tester, including:
the establishing module 10 is used for establishing basic operation for generating a relay protection test case;
a setting test sequence module 20 for setting a test sequence according to the basic operation;
a generate test item module 30 for generating test items;
a test case generation module 40, configured to generate a relay protection test case according to the test item;
the storage module 50 is used for storing the compiled relay protection test cases into an xml format and setting DLL interface modules for the background test equipment;
and the interaction module 60 is used for setting the test background software to interact with the tested equipment through an IEC61850 protocol, an IEC61870 protocol and a Modbus protocol, and to interact with the measurement meter through an SCPI.
Further, the test sequence module is specifically configured to:
setting the state of the test in each time period and the interruption condition of the test according to the basic operation;
and arranging and combining the states and the interruption conditions of all time periods according to the relay protection detection conditions and the detection rules to form a test sequence.
A third aspect of the embodiments of the present application provides a universal test device for a relay protection tester, where the device includes a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is used for executing the general testing method of the relay protection tester according to the instructions in the program codes.
A fourth aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium is configured to store program codes, and the program codes are configured to execute the general test method of the relay protection tester according to the above embodiments.
The terms "comprises," "comprising," and any other variation thereof in the description and the drawings described above are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A universal test method of a relay protection tester is characterized by comprising the following steps:
establishing basic operation for generating a relay protection test case;
setting a test sequence according to the basic operation;
generating a test item;
generating the relay protection test case according to the test items;
storing the compiled relay protection test case into an xml format, and setting DLL interface modules for the testers;
and setting test background software to interact with the tested equipment through an IEC61850 protocol, an IEC61870 protocol and a Modbus protocol, and to interact with the measurement meter through an SCPI protocol.
2. The universal testing method of relay protection tester as claimed in claim 1, wherein the basic operations include setting voltage current value, setting system impedance, setting switching value output, setting transmutation, setting time delay, setting GPS trigger, setting interrupt.
3. The universal testing method of relay protection tester as claimed in claim 2, wherein said setting the step change includes setting the amplitude and phase of each phase, setting the amplitude and phase of the sequence component, setting the harmonic value, and setting the value of the dc component.
4. The universal testing method of the relay protection tester as recited in claim 1, wherein the setting of the testing sequence according to the basic operation specifically includes:
setting the state of the test in each time period and the interruption condition of the test according to the basic operation;
and arranging and combining the states of the time periods and the interruption conditions according to the relay protection detection conditions and the detection rules to form a test sequence.
5. The universal testing method of the relay protection tester as recited in claim 1, wherein the generating test items specifically includes: modifying parameters of the tested device; applying a test state to the device under test; data of the meter for testing the device under test is acquired.
6. The universal testing method of the relay protection tester as claimed in claim 1, wherein the measurement meter comprises:
multifunctional multimeter and power analyzer.
7. A general test device of a relay protection tester is characterized by comprising:
the establishing module is used for establishing basic operation for generating a relay protection test case;
a test sequence setting module for setting a test sequence according to the basic operation;
the test item generation module is used for generating test items;
the test case generation module is used for generating the relay protection test case according to the test items;
the storage module is used for storing the compiled relay protection test case into an xml format and setting DLL interface modules for the background test equipment;
and the interaction module is used for setting the test background software to interact with the tested equipment through an IEC61850 protocol, an IEC61870 protocol and a Modbus protocol, and to interact with the measurement meter through an SCPI protocol.
8. The universal testing device of the relay protection tester as recited in claim 7, wherein the setting test sequence module is specifically configured to:
setting the state of the test in each time period and the interruption condition of the test according to the basic operation;
and arranging and combining the states of the time periods and the interruption conditions according to the relay protection detection conditions and the detection rules to form a test sequence.
9. The universal test equipment of the relay protection tester is characterized by comprising a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is used for executing the general testing method of the relay protection tester according to any one of claims 1-7 according to instructions in the program code.
10. A computer-readable storage medium for storing program code for executing the universal testing method of the relay protection tester according to any one of claims 1-7.
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| CN111723006A (en) * | 2020-05-25 | 2020-09-29 | 四川九洲电器集团有限责任公司 | Automatic test frame and industrial computer based on C # |
| CN112485483A (en) * | 2020-10-29 | 2021-03-12 | 国网湖北省电力有限公司电力科学研究院 | Relay protection test state sequence generation method and platform |
| CN113759245A (en) * | 2021-09-14 | 2021-12-07 | 许昌开普检测研究院股份有限公司 | Relay protection static mold test and dynamic mold test method based on unified hardware platform |
| CN113759245B (en) * | 2021-09-14 | 2024-06-21 | 许昌开普检测研究院股份有限公司 | Relay protection static mode test and dynamic mode test method based on unified hardware platform |
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