CN116500366B - Automatic test system and test method for electric power secondary equipment - Google Patents
Automatic test system and test method for electric power secondary equipment Download PDFInfo
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Abstract
The invention discloses an automatic test system of electric power secondary equipment and a test method thereof, wherein the automatic test system comprises an upper computer, a tester and equipment to be tested, the upper computer comprises an interactive display screen, test software is arranged in the upper computer, the test software comprises a logic drawing module, a test sequence generating module and a test sequence executing module, the logic drawing module is used for assisting a tester to convert a research and development design drawing into a protection test logic drawing, the test sequence generating module is used for automatically generating a test command sequence according to the protection test logic drawing, the output end of the test sequence executing module is respectively connected with the signal input end of the tester and the signal input end of the equipment to be tested, and the test command sequence is input into the tester and the equipment to be tested through the test sequence executing module after being generated; the test end of the tester is connected with the equipment to be tested. The invention aims to provide a test system and a test method for electric power secondary equipment, which can be used for various protection logics, have full functional coverage and high use case generation efficiency.
Description
Technical Field
The invention relates to the field of production of electric power secondary equipment, in particular to an automatic test system and a test method of the electric power secondary equipment.
Background
The secondary power equipment is key equipment for monitoring, measuring, controlling, regulating and protecting primary power equipment of a power system, and plays an important role in guaranteeing stable operation of a power grid and rapidly cutting off faults. Therefore, the quality of the secondary power plant is important, which is related to the stable operation of the whole power grid. In order to improve the quality of the secondary power equipment, it is important to test the secondary power equipment.
The automatic test system of the existing electric power secondary equipment is mainly designed for a test instrument driving interface, the test scheme editing interface has a larger phase difference with the electric power secondary equipment protection control logic, a test engineer needs to spend a great deal of time to understand the protection logic designed by a research and development department before testing, and then a test command sequence is manually written and command parameters are set according to the protection logic. In actual test activities, the actions to be tested are very many, the coverage of the protection control logic branches is difficult to ensure only by manual writing, missing situations possibly occur, the efficiency of manually writing test cases is low, the test period is relatively long, the requirements of quick test of new products and non-standardized products cannot be met, and the research and development and production efficiency of enterprises are reduced.
The patent with the application number of CN201510011984.8 provides a relay protection test system and a relay protection test method based on a logic diagram, a standardized logic test state sequence is generated according to a research and development design diagram, and finally, the test is completed by using a test system execution state sequence. The patent builds a test model through the standardized protection logic diagram, realizes the graphic design of the test case and the automatic generation of the execution sequence, and has clear and visual test process. However, the patent relies on standard logic diagrams, when non-standardized protection logic and new protection logic appear, the primitive library needs to be redeveloped, and the primitive library needs to be manually set with test input, which still brings additional workload to test work.
Disclosure of Invention
The invention aims to: the invention aims to provide a test system and a test method for electric power secondary equipment, which can be used for various protection logics, have full functional coverage and high use case generation efficiency.
The technical scheme is as follows: the invention discloses an automatic test system of electric power secondary equipment, which comprises an upper computer, a tester and equipment to be tested, wherein the upper computer comprises an interactive display screen, test software is arranged in the upper computer, the test software comprises a logic drawing module, a test sequence generating module and a test sequence executing module, the logic drawing module is used for assisting a tester to convert a research and development design drawing into a protection test logic drawing, the test sequence generating module is used for automatically generating a test command sequence according to the protection test logic drawing, the output end of the test sequence executing module is respectively connected with the signal input end of the tester and the signal input end of the equipment to be tested, and the test command sequence is input into the tester and the equipment to be tested through the test sequence executing module after being generated; the test end of the tester is connected with the equipment to be tested. The test sequence execution module is used for driving the tester and the equipment to be tested to sequentially execute the test command sequence, generate a test report and complete the test.
Further, the test software also comprises an equipment information base, and the equipment information base stores information of a plurality of testers and information of equipment to be tested.
Further, the protection test logic diagram comprises a finite state machine main diagram and a conditional logic sub-diagram, wherein the finite state machine main diagram is used for reflecting logic state conversion paths and conditions among various actions of the equipment to be tested, and the conditional logic sub-diagram is used for reflecting implementation conditional logic of each action of the equipment to be tested.
Further, the finite state machine main graph comprises a plurality of editable node sub-models, each node sub-model serving as a node corresponds to different states of the equipment to be tested in the test, two adjacent node sub-models are connected through a connecting line, and the connecting line corresponds to conditions to be met by the equipment to be tested in the process of switching the two different states.
Further, the device also comprises a switch, one end of the switch is in bidirectional connection with the upper computer through a signal transmission line, and the other end of the switch is in bidirectional connection with the tester and the equipment to be tested through the signal transmission line.
A testing method of an automatic testing system of electric power secondary equipment comprises the following steps:
the first step: creating a test project in test software, calling information of a tester and equipment to be tested in an equipment information base, and creating a tester channel information object, a message of the equipment to be tested and a constant value information object;
and a second step of: based on the research and development design drawing, a tester draws a protection test logic drawing by using a logic drawing module;
and a third step of: setting the range coverage value of each parameter in the protection test logic diagram and the test mode of the test action (single action traverses item by item; or in an orthogonal combination mode, i.e. whether bug exists when a plurality of items are combined together for test combination);
fourth step: generating a test command sequence, and projecting the test command sequence to an interactive display screen for confirmation by a tester;
fifth step: transmitting the test command sequence to a tester, and testing the equipment to be tested;
sixth step: the test is completed and a test report is generated.
Further, the protection test logic diagram comprises a finite state machine main diagram and a conditional logic sub-diagram, wherein the finite state machine main diagram is used for reflecting logic state conversion paths and conditions among various actions of the equipment to be tested, and the conditional logic sub-diagram is used for reflecting implementation conditional logic of each action of the equipment to be tested.
The beneficial effects are that: compared with the prior art, the invention has the following remarkable advantages: 1. the detection personnel converts the research and development design diagram of the equipment to be detected into a mature finite state machine main diagram and a condition logic sub-diagram by utilizing a graph theory algorithm, converts complex research and development logic into clear test logic, can simply and clearly know the logic state conversion path and conditions, and can clearly check whether the logic state conversion path of the action mode in the test is missed; 2. the node sub-model in the finite state machine main diagram is editable, so that the method and the device are applicable to nonstandard equipment to be tested, only the node sub-model is required to be edited when in use, and the operation is convenient; 3. because 3-8 or even more action modes need to be tested in one test project, the logic is complex, the test command sequences are manually written and the set command parameters are easy to miss, and the plurality of action modes possibly need to be linked to each other to make the test command sequences more complex.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a development and design diagram of an embodiment of the present invention.
Fig. 3 is a schematic diagram of a finite state machine main diagram of a inspector according to a development design diagram conversion in a logic drawing module.
Fig. 4 is a logic diagram of a charging condition converted by a inspector according to a development design diagram in a logic drawing module according to an embodiment.
FIG. 5 is a schematic diagram of an embodiment of an immediate discharge condition logic diagram of a inspector in a logic drawing module according to a development design diagram.
Fig. 6 is a diagram showing a busbar non-voltage discharge condition of a tester according to the conversion of the development design diagram in the logic drawing module in the embodiment.
Fig. 7 is a schematic diagram of a jump 1DL condition chart of a inspector according to a development design chart conversion in a logic drawing module.
FIG. 8 is a display interface of an interactive display screen in an embodiment.
Wherein: 1. an upper computer; 101. a device information base; 102. a logic drawing module; 103. a test sequence generation module; 104. a test sequence execution module; 2. a switch; 3. a device under test; 4. and a tester.
Description of the embodiments
The technical scheme of the invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, the automatic test system of the electric power secondary equipment comprises an upper computer 1, a tester 4, equipment to be tested 3 and a switch 2.
The upper computer 1 comprises an interactive display screen, test software is arranged in the upper computer 1, the test software comprises a device information base 101, a logic drawing module 102, a test sequence generation module 103 and a test sequence execution module 104, the device information base 101 stores information of a plurality of testers 4 and information of devices 3 to be tested, the logic drawing module 102 is used for assisting a tester to convert a research and development design drawing into a protection test logic drawing, the test sequence generation module 103 is used for automatically generating a test command sequence according to the protection test logic drawing, the output end of the test sequence execution module 104 is connected with the signal input end of the switch 2, and the test command sequence is input into the switch 2 through the test sequence execution module 104 after being generated.
The protection test logic diagram comprises a finite state machine main diagram and a conditional logic sub-diagram, wherein the finite state machine main diagram is used for reflecting logic state conversion paths and conditions among various actions of the equipment 3 to be tested, and the conditional logic sub-diagram is used for reflecting implementation conditional logic of each action of the equipment 3 to be tested.
The finite state machine main diagram comprises a plurality of editable node sub-models, each node sub-model serving as a node corresponds to different states of the equipment to be tested 3 in the test, two adjacent node sub-models are connected through a connecting line, and the connecting line corresponds to conditions to be met when the equipment to be tested 3 is converted in the two different states.
One end of the switch 2 is connected with the upper computer 1 in a bidirectional way through a signal transmission line, and the other end of the switch 2 is connected with the tester 4 and the equipment to be tested 3 in a bidirectional way through the signal transmission line respectively; the test end of the tester 4 is connected with the device under test 3. The test sequence execution module 104 sends the test command sequence to the tester 4 and the device under test 3 through the switch 2 respectively, so as to drive the tester 4 and the device under test 3 to execute the test command sequence, generate a test report and complete the test.
A testing method of an automatic testing system of electric power secondary equipment comprises the following steps:
the first step: creating a test project in test software, calling information of a tester 4 and a device to be tested 3 in a device information base 101, and creating a tester channel information object, a message of the device to be tested and a fixed value information object;
and a second step of: based on the research and development design diagram, a tester draws a protection test logic diagram by using a logic drawing module 102, wherein the protection test logic diagram comprises a finite state machine main diagram and a conditional logic sub-diagram, the finite state machine main diagram is used for reflecting logic state conversion paths and conditions among various actions of the equipment 3 to be tested, and the conditional logic sub-diagram is used for reflecting realization condition logic of each action of the equipment 3 to be tested;
and a third step of: setting the range coverage value of each parameter in the protection test logic diagram and the test mode of the test action (single action traverses item by item; or in an orthogonal combination mode, i.e. whether bug exists when a plurality of items of actions are combined together for test combination);
fourth step: generating a test command sequence, and projecting the test command sequence to an interactive display screen for confirmation by a tester;
fifth step: transmitting the test command sequence to a tester 4, and testing the device 3 to be tested;
sixth step: the test is completed and a test report is generated.
Examples
Taking common non-standardized equipment 10kV automatic backup power switching logic as an example, a test method of an automatic test system of electric power secondary equipment is described in detail, in the test engineering, 8 automatic backup power switching modes are required to be tested by equipment 3 to be tested, and in order to simplify the description, only the conversion and test process of the automatic backup power switching mode 3 is exemplified. The automatic backup switching device is short for automatic backup power supply switching device, when the main power supply of the power supply system fails, the automatic backup switching device controls the main contact of primary equipment, firstly, the failure power supply circuit breaker is disconnected, and then a circuit between the automatic backup switching device and the backup power supply is closed to connect the backup power supply, so that the normal operation of power facilities is ensured.
Fig. 2 shows a development design diagram of the automatic backup power switching mode 3 of the device to be tested 3, and fig. 2 shows that the automatic backup power switching mode 3 has four actions, namely charging, discharging, jumping 1DL and closing 3DL, and simultaneously three hidden states (initial state, failure and ending) hidden in the development design diagram can be seen. The voltage extremum (UYYset) includes two extremum, namely a voltage extremum (UYYset) and a no-voltage extremum (UWYset), as can be seen in fig. 2, there are two hidden charging conditions, that is, the voltage of the I bus is equal to the voltage extremum ((uyset), which requires that the voltage of the I bus is compared with the voltage extremum ((uyset)), and that the voltage of the I bus is greater than the voltage extremum (uyset), which indicates that the I bus is equal to the voltage extremum (uyset), the voltage of the ii bus is equal to the voltage extremum (uyset), which represents that the voltage of the ii bus is greater than the voltage extremum (uyset), and that the voltage of the I bus is less than the voltage extremum (uyset), which is equal to the voltage of the ii bus is equal to the voltage extremum (uyset), and that the voltage of the ii bus is less than the voltage extremum (uyset), which is equal to the voltage of the ii bus is less than the voltage extremum (uyset) in mode 3, and that the voltage of the ii bus is less than the voltage extremum is less than no current (IWset) is equal to no current 1).
A testing method of an automatic testing system of electric power secondary equipment comprises the following steps:
the first step: creating a test project in test software, calling information of a tester 4 and a device to be tested 3 in a device information base 101, and creating a tester channel information object, a message of the device to be tested and a constant value information object, wherein the tester channel information object is as follows in table one:
list one
| Sequence number | Type(s) | Description of the invention | Identifier(s) | Data type | Remarks |
| 1 | AC channel | UI (user interface) mother voltage | Ua | STRUCT | [57.74,0,50.000] |
| 2 | AC channel | UII mother voltage | Ub | STRUCT | [57.74,0,50.000] |
| 3 | AC channel | I1DL current | Ia | STRUCT | [1.000,0,50.000] |
| 4 | AC channel | I2DL current | Ib | STRUCT | [1.000,0,50.000] |
| 5 | Opening a channel | 1DL skip bit | BOut1 | BOOL | [0,1] |
| 6 | Opening a channel | 1DL post-synthesis | BOut2 | BOOL | [0,1] |
| 7 | Opening a channel | 2DL skip bit | BOut3 | BOOL | [0,1] |
| 8 | Opening a channel | 2DL post-synthesis | BOut4 | BOOL | [0,1] |
| 9 | Opening a channel | 3DL skip bit | BOut5 | BOOL | [0,1] |
| 10 | Opening a channel | Locking on/off | BOut6 | BOOL | [0,1] |
| 11 | Opening a channel | #1 protection switch-in | BOut7 | BOOL | [0,1] |
| 12 | Opening a channel | #2 protection switch-in | BOut8 | BOOL | [0,1] |
| 13 | Opening a channel | 1DL skip bit | BOut9 | BOOL | [0,1] |
| 14 | Opening into a channel | 1DL trip outlet | BIn1 | BOOL | [0,1] |
| 15 | Opening into a channel | 2DL trip exit | BIn2 | BOOL | [0,1] |
| 16 | Opening into a channel | 3DL trip exit | BIn3 | BOOL | [0,1] |
；
The message and the fixed value information object of the device to be tested are shown in the following table two:
watch II
| Sequence number | Type(s) | Description of the invention | Identifier(s) | Data type | Value range |
| 1 | Constant value | Post-combination control word | PROT/PTOC1.ENA1.SET | BOOL | [0,1] |
| 2 | Constant value | Mode 3 control word | PROT/PTOC1.ENA2.SET | BOOL | [0,1] |
| 3 | Constant value | Mode 3 Soft platen | PROT/PTOC1.ENA3.SET | BOOL | [0,1] |
| 4 | Constant value | UYYset | PROT/PTOC1.PVH.SET | FLOAT | [30,50,30] |
| 5 | Constant value | UWYset | PROT/PTOC1.PVL.SET | FLOAT | [5,20,10] |
| 6 | Constant value | IYLset | PROT/PTOC1.AYL.SET | FLOAT | [0.1,1.00,0.5] |
| 7 | Constant value | IWLset | PROT/PTOC1.AWL.SET | FLOAT | [0.05,0.01,0.08] |
| 8 | Constant value | TU1 | PROT/PTOC1.OPDLM1.SET | FLOAT | [0.1,10,0.1] |
| 9 | Constant value | TU5 | PROT/PTOC1.OPDLM2.SET | FLOAT | [0.1,10,0.1] |
| 10 | Message | Completion of charging | PROT/GGIO1.IND1 | BOOL | [0,1] |
| 11 | Message | Discharge of electric power | PROT/GGIO1.IND2 | BOOL | [0,1] |
| 12 | Message | Successful standby power supply | PROT/GGIO1.IND3 | BOOL | [0,1] |
| 13 | Message | Failure of backup power | PROT/GGIO1.IND4 | BOOL | [0,1] |
| 14 | Message | Hop 1DL | PROT/GGIO1.IND5 | BOOL | [0,1] |
| 15 | Message | Hop 2DL | PROT/GGIO1.IND6 | BOOL | [0,1] |
| 16 | Message | He 3DL | PROT/GGIO1.IND7 | BOOL | [0,1] |
；
And a second step of: based on the development design diagram, a tester draws a finite state machine main diagram and a conditional logic sub diagram by using a logic drawing module 102, wherein the tester takes actions and hidden states in the development design diagram of fig. 2 as nodes of the finite state machine main diagram, drags seven node sub models into the finite state machine main diagram and names the finite state machine main diagram correspondingly, the seven nodes are respectively an initial state, a charging completion, discharging, a jump 1DL, a shut 3DL and a standby power failure and ending, two adjacent node sub models are connected through a connecting line, the connecting line corresponds to a condition to be met when the device 3 to be tested is converted in two different states, condition=1 in the diagram represents that the condition is met, condition=0 in the diagram represents that the condition is not met, the conditional logic sub diagram expands the hidden condition in fig. 2, the obtained finite state machine main diagram is formed by connecting with a nor logic gate, and the obtained charging condition logic sub diagram, the immediate discharging condition sub diagram, the bus non-pressure discharging condition sub diagram and the jump 1 condition sub diagram are respectively shown in fig. 4-7;
and a third step of: setting range coverage values of all parameters in a protection test logic diagram in an interface of an interactive display screen, and selecting a test mode as an orthogonal combination mode, wherein the orthogonal combination mode is that a plurality of item actions are combined together for traversing to test whether bug exists in combination;
fourth step: generating a test command sequence, and projecting the test command sequence to an interactive display screen for confirmation by a tester, and traversing the finite state machine main diagram condition as shown in the following table III:
watch III
，
Taking 3DL as an example, the test command and parameters are shown in the following table four on the interactive display screen:
table four
| Command sequence number | Command name | Command parameter 1 | Command parameter 2 | Command parameter 3 |
| 1 | Setting a fixed value | Post-combining location access = 1；UYYset=50； Mode 3 soft platen = 1, a step of; mode 3 control word =1；IYLset= 0.1；UWYset= 20；IWLset= 0.01；TU1=5； TU5=3； | ||
| 2 | State sequence | Name: completion of charging The overturning mode is as follows: time of Turning over; time: 16 Second, wherein the second is; traffic volume: UI (user interface) Mother voltage=57.00; UII mother voltage = 57.00; i1DL electric Stream = 1.000; i2DL Current = 1.000; opening device And (3) out: 1DL skip bit = 0; 2DL skip bit = 0;1DL Post-synthesis = 1;2DL (DL) combination Rear = 1;3DL skip = 1, a step of; and (3) opening: without any means for | Name: spare power switching action The overturning mode is as follows: opening and closing Time + time; time: TU1+1 seconds; UI mother Voltage=19.00; UII mother voltage = 57.00; i1DL electric Stream = 0.090; i2DL Current = 1.000; opening device And (3) out: 1DL skip bit = 0; 2DL skip bit = 0;1DL Post-synthesis = 1;2DL (DL) combination Rear = 1;3DL skip = 1, a step of; and (3) opening: 1DL hop Gate outlet= 1; | name: he 3DL turn over The rotation mode is as follows: open into + Time; time: TU5 (TU) +1 second; UI (user interface) mother voltage =19.00; UII mother Voltage=57.00; i1dl current= 0.090; i2DL electric Stream = 1.000; opening device And (3) out: 1DL skip bit = 1; 2DL skip bit = 0;1DL Post-synthesis = 1;2DL (DL) combination Rear = 1;3DL skip = 1, a step of; and (3) opening: 3DL combination Gate outlet= 1 |
| 3 | Message comparison | Charging completion= 1; hop 1 dl= 1; spare power switch Success= 1; discharge = =1; total 3 dl= 1; |
；
fifth step: transmitting a test command sequence to a tester 4 and a device to be tested 3 through a switch 2 in the form of a json format character string, testing the device to be tested 3, firstly transmitting a constant command parameter to the device to be tested 3, transmitting a state sequence command parameter to the tester 4 after test execution is finished, transmitting a message comparison command parameter after execution is finished, and judging a conditional branch test result according to state sequence command 3DL closing outlet data and message comparison data;
sixth step: and finishing detection and generating a detection report.
Claims (4)
1. The automatic test system of the electric power secondary equipment comprises an upper computer (1), a tester (4) and equipment to be tested (3), wherein the upper computer (1) comprises an interactive display screen, test software is arranged in the upper computer (1), the test software comprises a logic drawing module (102), a test sequence generating module (103) and a test sequence executing module (104), the logic drawing module (102) is used for assisting a tester to convert a research and development design drawing into a protection test logic drawing, the test sequence generating module (103) is used for automatically generating a test command sequence according to the protection test logic drawing, the output end of the test sequence executing module (104) is respectively connected with the signal input end of the tester (4) and the signal input end of the equipment to be tested (3), and the test command sequence is input into the tester (4) and the equipment to be tested (3) through the test sequence executing module (104) after being generated; the test end of the tester (4) is connected with the equipment (3) to be tested, the protection test logic diagram comprises a finite state machine main diagram and a conditional logic sub-diagram, the finite state machine main diagram is used for reflecting logic state conversion paths and conditions among various actions of the equipment (3) to be tested, the conditional logic sub-diagram is used for reflecting implementation conditional logic of each action of the equipment (3) to be tested, the finite state machine main diagram comprises a plurality of editable node sub-models, each node sub-model serving as a node corresponds to different states of the equipment (3) to be tested in the test, two adjacent node sub-models are connected through a connecting line, and the connecting line corresponds to conditions to be met by the equipment (3) to be tested in two different state conversions.
2. An automatic test system for electrical secondary equipment as claimed in claim 1 wherein: the test software also comprises an equipment information base (101), wherein the equipment information base (101) stores information of a plurality of testers (4) and information of equipment (3) to be tested.
3. An automatic test system for electrical secondary equipment as claimed in claim 1 wherein: the device also comprises a switch (2), wherein one end of the switch (2) is in bidirectional connection with the upper computer (1) through a signal transmission line, and the other end of the switch (2) is respectively in bidirectional connection with the tester (4) and the equipment to be tested (3) through the signal transmission line.
4. A testing method of an automatic testing system of electric power secondary equipment comprises the following steps:
the first step: creating test engineering in test software, calling information of a tester (4) and a device to be tested (3) in a device information base (101), and creating a channel information object of the tester (4), a message of the device to be tested (3) and a fixed value information object;
and a second step of: based on the research and development design diagram, a tester draws a protection test logic diagram by using a logic drawing module (102), wherein the protection test logic diagram comprises a finite state machine main diagram and a conditional logic sub-diagram, the finite state machine main diagram is used for reflecting logic state conversion paths and conditions among various actions of the equipment (3) to be tested, and the conditional logic sub-diagram is used for reflecting implementation conditional logic of each action of the equipment (3) to be tested;
and a third step of: setting a range coverage value of each parameter in the protection test logic diagram and a test mode of a test action;
fourth step: generating a test command sequence, and projecting the test command sequence to an interactive display screen for confirmation by a tester;
fifth step: transmitting the test command sequence to a tester (4), and testing the equipment (3) to be tested;
sixth step: the test is completed and a test report is generated.
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