An overall automatic testing method for an intelligent substation system

Abstract

The present invention relates to the technical field of engineering testing, and particularly to an overall automatic testing method for an intelligent substation system. Specifically, it includes the following steps: S1: Connect an automatic tester to the process layer, the station control layer network switch, and the microcomputer monitoring system; S2: Respectively test the signals of the intelligent terminal module with the protection module, the measurement and control module, the fault recorder, and the microcomputer monitoring system; S3: Test the signals of the protection module with the intelligent terminal module, the measurement and control module, the fault recorder, and the microcomputer monitoring system; S4: Test whether the signal reception of the intelligent terminal module is normal; S5: Test whether the status quantity reception of the protection module is normal; S6: Conduct the main / standby network / main / standby machine switching test; S7: Determine the equipment to be repaired according to the test results; The present invention can use automatic testing by an automatic tester to replace manual one-by-one testing, effectively solving the problem of low overall testing efficiency of intelligent substations in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering testing, and particularly to an overall automatic testing method for an intelligent substation system. Background Art

[0002] A substation is an essential and indispensable part of the power system, which undertakes the heavy tasks of electric energy conversion and redistribution. Compared with conventional substations, the signal acquisition and action commands of secondary equipment in intelligent substations are transmitted in the form of process layer network data, featuring digitalization and networking of intelligent stations. It is a new measure to conform to the development trend of digital technology in substations and build a digital power grid.

[0003] To ensure the reliability of the operation of intelligent substations, there are still many problems to be solved in the testing, commissioning, and operation and maintenance of intelligent substations. Among these, the engineering detection of the secondary system of intelligent stations is indispensable. Referring to the FPT testing experience of HVDC projects, engineering simulation testing is carried out on the secondary system of intelligent stations to comprehensively verify the technical reliability of various aspects of intelligent stations, which is conducive to improving the grid connection efficiency of newly built or renovated and expanded intelligent substations. It not only reduces the on-site commissioning workload and difficulty but also reduces the need for cooperation from grass-roots personnel, achieving quality improvement and efficiency increase in the operation and maintenance management of secondary equipment.

[0004] Overall system testing is the most important testing work in the secondary engineering detection of intelligent stations. It can test the overall correctness of the intelligent substation system and is the key to ensuring the stable operation of intelligent stations. However, the progress of the current overall system testing technology reform is relatively slow, still remaining in the stage mainly based on manual testing, consuming a large amount of manpower and material resources and having relatively low testing efficiency. Summary of the Invention

[0005] The present invention provides an overall automatic testing method for an intelligent substation system to solve the problem of low overall testing efficiency of substations in the prior art.

[0006] The first aspect of the present invention provides an overall automatic testing method for an intelligent substation system, including the following steps:

[0007] S1: Connect the automatic tester to the process layer network switch to achieve process layer communication between the automatic tester and intelligent terminal modules, protection modules, measurement and control modules, fault recorders, etc.;

[0008] Connect the automatic tester to the station control layer network switch and the microcomputer monitoring system to achieve station control layer communication between the automatic tester and the protection module, the measurement and control module, and the microcomputer monitoring system;

[0009] S2: Use the automatic tester to perform a remote signaling test between the intelligent terminal module and the protection module, the measurement and control module, the fault recorder, and the microcomputer monitoring system respectively, and determine whether the signal reception is normal;

[0010] S3: Use the automatic tester to perform an action signal test between the protection module and the intelligent terminal module, the measurement and control module, the fault recorder, and the microcomputer monitoring system respectively, and use the automatic tester to detect whether the protection module can receive the incoming signal information across intervals, and determine whether the signal reception is normal;

[0011] S4: Control the protection module to act through the background, and use the automatic tester to test whether the signal reception of the intelligent terminal module is normal;

[0012] S5: Apply a fault status quantity to the protection module through the automatic tester, obtain the action time of the protection module and the action time of the intelligent terminal module, and calculate whether the system tripping time is less than the preset time threshold through the action time difference between the protection module and the intelligent terminal module;

[0013] S6: Perform the main and standby network switching tests of the protection module and the measurement and control module respectively, the main and standby network switching test of the host of the microcomputer monitoring system, and the main and standby host switching test of the microcomputer monitoring system, and determine whether the microcomputer monitoring system works normally during the switching process;

[0014] S7: Record the test results respectively, and determine the equipment to be repaired according to the test abnormal results in the record.

[0015] Specifically, the intelligent terminal module includes: main transformer intelligent terminal, bus intelligent terminal, bus-tie intelligent terminal, and line intelligent terminal;

[0016] The protection module includes: main transformer protection device, bus protection device, bus-tie protection device, and line protection device;

[0017] The measurement and control module includes: main transformer measurement and control device, bus measurement and control device, bus-tie measurement and control device, and line measurement and control device.

[0018] Specifically, in step S2, the remote signaling test between the intelligent terminal module and the protection module, the measurement and control module, and the fault recorder through the automatic tester is specifically as follows:

[0019] Use the automatic tester to control the intelligent terminal module, so that the intelligent terminal module triggers remote signaling signals including switches, disconnectors, and locks, and test whether the corresponding protection module, measurement and control module, fault recorder, and microcomputer monitoring system corresponding to the intelligent terminal module can receive the corresponding remote signaling signals.

[0020] Specifically, in step S3, the automatic tester is used to perform action signal tests between the protection module and the intelligent terminal module, the measurement and control module, the fault recorder, and the microcomputer monitoring system respectively, specifically as follows:

[0021] The automatic tester triggers the action and blocking commands of the protection module, and tests whether the intelligent terminal module, the measurement and control module, the fault recorder, and the microcomputer monitoring system corresponding to the protection module can receive the corresponding action signals.

[0022] Specifically, in step S4, the protection module is controlled to act through the background, and the automatic tester is used to test whether the signal reception of the intelligent terminal module is normal, specifically as follows:

[0023] The background is used to control the switch and disconnecting switch actions of the protection module, and the automatic tester is used to test whether the intelligent terminal module corresponding to the protection module can receive the corresponding action signals.

[0024] Specifically, in step S6, the main and standby network switching tests of the protection module and the measurement and control module, the main and standby network switching test of the host of the microcomputer monitoring system, and the main and standby host switching test of the microcomputer monitoring system are carried out respectively, specifically as follows:

[0025] The main network network cables of the protection module and the measurement and control module are disconnected one by one, hard contact signals or protection action signals are simulated on the protection module, and the signal window of the host of the microcomputer monitoring system is monitored;

[0026] The main network network cable of the host of the microcomputer monitoring system is disconnected, hard contact signals or protection action signals are simulated on the protection module, and the signal window of the host of the microcomputer monitoring system is monitored;

[0027] The dual network network cables of the host of the microcomputer monitoring system are disconnected, hard contact signals or protection action signals are simulated on the protection module, and the signal window of the host of the microcomputer monitoring system is monitored.

[0028] Specifically, in step S6, it is judged whether the microcomputer monitoring system works normally during the switching process, specifically as follows:

[0029] There should be switching alarm signals in the signal window of the host of the microcomputer monitoring system;

[0030] The simulated hard contact signals or protection action signals are not lost, not repeated, and the event time sequence records are accurate.

[0031] Specifically, the automatic tester is used to detect whether the protection module can receive the incoming quantity information across intervals, specifically as follows:

[0032] When the automatic tester is used to test whether the main transformer protection device in the protection module can receive the cross-interval digital input information, the digital input information is set to include: starting failure to bus protection, bus failure action tripping three sides, and releasing the re-pressure lock;

[0033] When the automatic tester is used to test whether the busbar protection device in the protection module can receive the input quantity information across the intervals, the input quantity information is set to include: each interval starts failure to the busbar protection, the busbar protection action starts remote tripping to each line interval, the busbar action trips and closes, the busbar failure protection releases the re-pressure lock, and the failure action trips the three sides of the main transformer;

[0034] When testing whether the busbar protection device in the protection module can receive the cross-interval digital input information by the automatic tester, the digital input information is set to include: starting failure to busbar protection;

[0035] When the automatic tester is used to test whether the line protection device in the protection module can receive the cross-interval digital input information, the digital input information is set to include: starting failure to bus protection, bus protection action starting remote trip, and bus action tripping and closing.

[0036] In the specific step S5, the preset time threshold is specifically 40ms.

[0037] Specifically, the automatic tester communicates with the process switch using the GOOSE protocol, and the automatic tester communicates with the station control layer switch and the microcomputer monitoring system using the MMS protocol.

[0038] The beneficial effects of the present invention are as follows. An embodiment of the present invention provides an overall automatic testing method for an intelligent substation system, including the following steps: S1: Connect the automatic tester to the process layer network switch to achieve the process layer communication between the automatic tester and the intelligent terminal module, protection module, measurement and control module, fault recorder, and between them; connect the automatic tester to the station control layer network switch and the microcomputer monitoring system to achieve the station control layer communication between the automatic tester and the protection module, measurement and control module, and microcomputer monitoring system; S2: Use the automatic tester to respectively perform remote signal tests between the intelligent terminal module and the protection module, measurement and control module, fault recorder, and microcomputer monitoring system to determine whether the signal reception is normal; S3: Use the automatic tester to respectively perform action signal tests between the protection module and the intelligent terminal module, measurement and control module, fault recorder, and microcomputer monitoring system, and use the automatic tester to detect whether the protection module can receive the incoming quantity information across intervals to determine whether the signal reception is normal; S4: Control the action of the protection module through the background and use the automatic tester to test whether the signal reception of the intelligent terminal module is normal; S5: Apply fault state quantities to the protection module through the automatic tester to obtain the action time of the protection module and the action time of the intelligent terminal module, and calculate whether the system tripping time is less than the preset time threshold through the time difference between the action times of the protection module and the intelligent terminal module; S6: Respectively perform the main and standby network switching tests of the protection module and the measurement and control module, the main and standby network switching test of the host of the microcomputer monitoring system, and the main and standby host switching test of the microcomputer monitoring system to determine whether the microcomputer monitoring system works normally during the switching process; S7: Record the test results respectively and determine the equipment to be repaired according to the test abnormal results in the record.

[0039] The overall automatic testing method for the intelligent substation system provided by the present invention realizes the communication between the automatic tester and the protection module, measurement and control module, intelligent terminal module, fault recorder, and microcomputer monitoring system by connecting the automatic tester to the station control layer network, process layer network, and microcomputer monitoring system of the intelligent substation, enabling the automatic tester to simulate various action signals and detect whether the signal reception between each module is normal, and determining whether the integrity of the intelligent substation is intact; the whole testing process uses automatic testing instead of manual one-by-one testing, effectively solving the problem of low efficiency of the overall testing of the intelligent substation in the prior art. Brief Description of the Drawings

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings without creative efforts based on these drawings.

[0041] Figure 1It is a flowchart of the overall automatic test method for the intelligent substation system;

[0042] Figure 2 It is a schematic diagram of the connection method for the automatic tester to access the substation. Specific implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] The first aspect of the present invention provides an overall automatic test method for the intelligent substation system. Please refer to Figure 1 , Figure 1 which is a flowchart of the overall automatic test method for the intelligent substation system, specifically including the following steps:

[0045] S1: Connect the automatic tester to the process layer network switch to realize the process layer communication between the automatic tester and the intelligent terminal module, protection module, measurement and control module, fault recorder, and between them;

[0046] Connect the automatic tester to the station control layer network switch and the microcomputer monitoring system to realize the station control layer communication between the automatic tester and the protection module, measurement and control module, and microcomputer monitoring system;

[0047] S2: Conduct remote signal tests between the intelligent terminal module and the protection module, measurement and control module, fault recorder, and microcomputer monitoring system respectively through the automatic tester to judge whether the signal reception is normal;

[0048] S3: Conduct action signal tests between the protection module and the intelligent terminal module, measurement and control module, fault recorder, and microcomputer monitoring system respectively through the automatic tester, and detect whether the protection module can receive the incoming quantity information across intervals through the automatic tester to judge whether the signal reception is normal;

[0049] S4: Control the action of the protection module through the background, and test whether the signal reception of the intelligent terminal module is normal through the automatic tester;

[0050] S5: Apply fault status quantities to the protection module through the automatic tester, obtain the action time of the protection module and the action time of the intelligent terminal module, and calculate whether the system tripping time is less than the preset time threshold through the time difference between the action times of the protection module and the intelligent terminal module;

[0051] S6: Perform the master-slave network switching test of the protection module and the measurement and control module, the master-slave network switching test of the host of the microcomputer monitoring system, and the master-slave machine switching test of the microcomputer monitoring system to determine whether the microcomputer monitoring system works normally during the switching process;

[0052] S7: The test results are recorded respectively, and the equipment to be repaired is determined according to the abnormal test results in the records.

[0053] It should be noted that there is no order of precedence between steps S2 to S6, and the staff can select the order for testing according to actual needs.

[0054] In a specific embodiment of the present invention, the intelligent terminal module includes: a main transformer intelligent terminal, a bus intelligent terminal, a bus tie intelligent terminal, and a line intelligent terminal;

[0055] The protection module includes: main transformer protection device, busbar protection device, bus tie protection device, and line protection device;

[0056] The measurement and control module includes: main transformer measurement and control device, busbar measurement and control device, bus tie measurement and control device, and line measurement and control device;

[0057] During the execution of steps S2-S6, each intelligent terminal in the intelligent terminal module, each protection device in the protection module, and each measurement and control device in the measurement and control module that need to be tested are tested one by one.

[0058] The present invention also provides a specific embodiment. On the basis of the above-mentioned embodiment, in step S2, the remote signal test is performed between the intelligent terminal module and the protection module, the measurement and control module, and the fault recorder by an automatic tester, specifically:

[0059] Use an automatic tester to trigger remote signaling signals such as switches, switches, and locks through the intelligent terminal module, and then test whether the protection module, measurement and control module, fault recorder, and microcomputer monitoring system corresponding to the intelligent terminal module can receive the remote signaling signal.

[0060] The present invention also provides a more specific embodiment. Based on the above embodiment, in step S3, an automatic tester is used to detect whether the protection module can receive the cross-interval binary input information, specifically:

[0061] The automatic tester is used to detect whether the main transformer protection device, busbar protection device, bus coupling protection device and line protection device can receive the cross-bay input quantity information, among which:

[0062] When the main transformer protection device is tested by the automatic tester, the input information to be set includes: starting the failure to busbar protection, busbar failure action tripping three sides, and releasing the re-pressure lock;

[0063] When detecting the bus protection device through an automatic tester, the set input quantity information includes: starting the malfunction to the bus protection for each interval, the bus protection action starting the remote trip to each line interval, the bus action tripping and closing the reclosing, the bus malfunction protection releasing the voltage suppression lockout, and the malfunction action tripping the main transformer on three sides;

[0064] When detecting the bus-tie protection device through an automatic tester, the set input quantity information includes: starting the malfunction to the bus protection;

[0065] When detecting the line protection device through an automatic tester, the set input quantity information includes: starting the malfunction to the bus protection, the bus protection action starting the remote trip, and the bus action tripping and closing the reclosing.

[0066] The present invention also provides a specific embodiment. In step S3, the action signal tests are respectively carried out between the protection module and the intelligent terminal module, the measurement and control module, the fault recorder, and the microcomputer monitoring system through an automatic tester. Specifically:

[0067] Trigger the action and blocking commands of the protection module through the automatic tester, and test whether the corresponding intelligent terminal module, measurement and control module, fault recorder, and microcomputer monitoring system corresponding to the protection module can receive the corresponding action signals.

[0068] The present invention also provides a specific embodiment. In step S4, control the action of the protection module through the background, and test whether the signal reception of the intelligent terminal module is normal through the automatic tester. Specifically:

[0069] Control the switch and disconnecting switch actions of the protection module through the background, and test whether the corresponding intelligent terminal module corresponding to the protection module can receive the corresponding action signals through the automatic tester.

[0070] The present invention also provides another specific embodiment. In step S6, the main and standby network switching tests of the protection module and the measurement and control module, the main and standby network switching test of the host of the microcomputer monitoring system, and the main and standby host switching test of the microcomputer monitoring system are respectively carried out. Specifically:

[0071] Disconnect the main network network cables of the protection module and the measurement and control module one by one, simulate hard contact signals or protection action signals on the protection module, and monitor the signal window of the host of the microcomputer monitoring system;

[0072] Disconnect the main network network cable of the host of the microcomputer monitoring system, simulate hard contact signals or protection action signals on the protection module, and monitor the signal window of the host of the microcomputer monitoring system;

[0073] Disconnect the dual network network cables of the host of the microcomputer monitoring system, simulate hard contact signals or protection action signals on the protection module, and monitor the signal window of the host of the microcomputer monitoring system.

[0074] The present invention also provides another specific embodiment. In step S6, it is judged whether the microcomputer monitoring system works normally during the switching process, specifically:

[0075] There should be a switching alarm signal in the host signal window of the microcomputer monitoring system;

[0076] The analog hard contact signal or the protection action signal is not lost, not repeated, and the event time sequence record is accurate.

[0077] In a specific embodiment of the present invention, the automatic tester and the process switch communicate using the GOOSE protocol, and the automatic tester and the substation control layer switch as well as the microcomputer monitoring system communicate using the MMS protocol.

[0078] The present invention also provides a specific embodiment. In step S5, the preset time threshold is specifically 40 ms.

[0079] The terms "comprising" and "having" and any variations thereof in the specification of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these process, method, product or device.

[0080] It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and both A and B exist at the same time. Among them, A and B can be singular or plural. The character " / " generally means that the associated objects before and after are in an "or" relationship. "At least one (one) of the following" or its similar expression means any combination of these items, including any combination of single item (one) or plural items (ones). For example, at least one (one) of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0081] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the above-described embodiments are merely illustrative. For example, the division of the devices is only a logical function division. In actual implementation, there may be other division methods. For example, multiple devices or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of the devices can be in electrical, mechanical or other forms.

[0082] The devices described as separate components may or may not be physically separated. The components shown as devices may or may not be physical devices, that is, they may be located in one place or distributed to multiple network devices. Some or all of the devices can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0083] In addition, the functional devices in each embodiment of the present application can be integrated in a processing device, or each device can exist physically alone, or two or more devices can be integrated in one device. The above integrated device can be implemented in the form of hardware or in the form of a software functional device.

Claims

1. An overall automatic testing method for an intelligent substation system, characterized in that The following steps are involved: S1: Connecting the automatic tester to the process layer network switch to achieve process layer communication between the automatic tester and the intelligent terminal module, protection module, measurement and control module, fault recorder, and so on; Connecting the automatic tester to the station control layer network switch and the microcomputer monitoring system to achieve station control layer communication between the automatic tester and the protection module, the measurement and control module, and the microcomputer monitoring system; S2: Performing remote signal testing between the intelligent terminal module and the protection module, the measurement and control module, the fault recorder and the microcomputer monitoring system through the automatic tester to determine whether the signal reception is normal; S3: using the automatic tester to respectively test the action signals between the protection module and the intelligent terminal module, the measurement and control module, the fault recorder, and the microcomputer monitoring system, and using the automatic tester to detect whether the protection module can receive the binary input information across the interval, and determine whether the signal reception is normal; S4: controlling the protection module to act through the background, and testing whether the signal reception of the intelligent terminal module is normal through the automatic tester; S5: applying a fault state quantity to the protection module through the automatic tester, obtaining the action time of the protection module and the action time of the intelligent terminal module, and calculating whether the system tripping time is less than a preset time threshold through the action time difference between the protection module and the intelligent terminal module; S6: Perform the master-slave network switching test of the protection module and the measurement and control module, the master-slave network switching test of the host of the microcomputer monitoring system, and the master-slave machine switching test of the microcomputer monitoring system respectively, and judge whether the microcomputer monitoring system works normally during the switching process; S7: Record the test results respectively, and determine the equipment to be repaired according to the abnormal test results in the records; In step S3, the automatic tester is used to detect whether the protection module can receive the binary input information across the interval, specifically: When the automatic tester is used to test whether the main transformer protection device in the protection module can receive the cross-interval digital input information, the digital input information is set to include: starting failure to bus protection, bus failure action tripping three sides, and releasing the re-pressure lock; When the automatic tester is used to test whether the busbar protection device in the protection module can receive the input quantity information across the intervals, the input quantity information is set to include: each interval starts failure to the busbar protection, the busbar protection action starts remote tripping to each line interval, the busbar action trips and closes, the busbar failure protection releases the re-pressure lock, and the failure action trips the three sides of the main transformer; When testing whether the busbar protection device in the protection module can receive the cross-interval digital input information by the automatic tester, the digital input information is set to include: starting failure to busbar protection; When the automatic tester is used to test whether the line protection device in the protection module can receive the cross-interval digital input information, the digital input information is set to include: starting failure to bus protection, bus protection action starting remote trip, and bus action tripping and closing.

2. The overall automatic testing method for an intelligent substation system according to claim 1, characterized in that, The intelligent terminal module includes: a main transformer intelligent terminal, a bus intelligent terminal, a bus tie intelligent terminal, and a line intelligent terminal; The protection module includes: main transformer protection device, bus protection device, bus-coupler protection device, and line protection device; The measurement and control module includes: main transformer measurement and control device, bus measurement and control device, bus-coupler measurement and control device, and line measurement and control device.

3. The overall automatic test method for an intelligent substation system according to claim 1, characterized in that In step S2, the automatic tester is used to perform remote signal tests between the intelligent terminal module and the protection module, the measurement and control module, and the fault recorder respectively, specifically: The automatic tester is used to control the intelligent terminal module to trigger remote signals including switches, disconnectors, and locks, and test whether the corresponding protection module, measurement and control module, fault recorder, and microcomputer monitoring system can receive the corresponding remote signals.

4. The overall automatic testing method for an intelligent substation system according to claim 1, characterized in that In step S3, the automatic tester is used to perform action signal tests between the protection module and the intelligent terminal module, the measurement and control module, the fault recorder, and the microcomputer monitoring system respectively, specifically: The automatic tester is used to trigger the action and locking commands of the protection module, and test whether the corresponding intelligent terminal module, measurement and control module, fault recorder, and microcomputer monitoring system can receive the corresponding action signals.

5. The overall automatic testing method for an intelligent substation system according to claim 1, wherein In step S4, the protection module is controlled to act through the background, and the automatic tester is used to test whether the signal reception of the intelligent terminal module is normal, specifically: The switches and disconnectors of the protection module are controlled to act through the background, and the automatic tester is used to test whether the corresponding intelligent terminal module can receive the corresponding action signals.

6. The overall automatic test method for an intelligent substation system according to claim 1, characterized in that, In step S6, the main-backup network switching tests of the protection module and the measurement and control module, the main-backup network switching test of the host of the microcomputer monitoring system, and the main-backup host switching test of the microcomputer monitoring system are performed respectively, specifically: The main network network cables of the protection module and the measurement and control module are disconnected one by one, hard contact signals or protection action signals are simulated on the protection module, and the signal window of the host of the microcomputer monitoring system is monitored; The main network network cable of the host of the microcomputer monitoring system is disconnected, hard contact signals or protection action signals are simulated on the protection module, and the signal window of the host of the microcomputer monitoring system is monitored; The dual network network cables of the host of the microcomputer monitoring system are disconnected, hard contact signals or protection action signals are simulated on the protection module, and the signal window of the host of the microcomputer monitoring system is monitored.

7. The overall automatic test method for an intelligent substation system according to claim 1, characterized in that, In step S6, it is judged whether the microcomputer monitoring system works normally during the switching process, specifically: There should be a switching alarm signal in the signal window of the host of the microcomputer monitoring system; The simulated hard contact signals or protection action signals are not lost, not repeated, and the event time sequence record is accurate.

8. The overall automatic test method for an intelligent substation system according to claim 1, characterized in that In step S5, the preset time threshold is specifically 40 ms.

9. The overall automatic test method for an intelligent substation system according to claim 1, wherein The automatic tester communicates with the process layer network switch using the GOOSE protocol, and the automatic tester communicates with the station control layer network switch and the microcomputer monitoring system using the MMS protocol.

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