A method for generating safety measures for substation secondary AC voltage circuit based on cable connection status of circuit model

Abstract

The present invention provides a method for generating safety measures for a secondary AC voltage circuit of a substation based on the cable connection status of a circuit model, the method comprising: identifying the connection relationship between the secondary circuit model of the substation and the voltage circuit by parsing a logic model file. According to the on-site work, the working panel cabinet and the non-working panel cabinet are distinguished, the voltage circuit connection between the two is analyzed, and the external voltage circuit of the working panel cabinet is determined. The circuit connection subdivision type is judged according to the voltage circuit connection relationship, and different safety measures are automatically matched to each voltage circuit subdivision type. Search logic is executed, and finally corresponding safety measures are automatically generated. The method for automatically generating safety measures for the secondary AC voltage circuit of a substation provided by the present invention can accurately distinguish between working panel cabinets and non-working panel cabinets, and automatically match corresponding safety measures, thereby improving the safety and operating efficiency of the secondary AC voltage circuit of the substation, reducing the errors and risks of manual operation, and ensuring the stable operation of the power system and the safety of personnel.

Description

Technical Field

[0001] The present invention relates to the technical field of power systems, and in particular to a method for generating safety measures for a secondary AC voltage circuit of a transformer substation based on a cable connection state of a circuit model. Background Art

[0002] When secondary work is carried out at the substation site, it is necessary to apply test voltage to the AC voltage circuit, prevent the debugging process from affecting the operating equipment, and implement safety measures on the AC voltage circuit to safely isolate the AC voltage circuit in the working range from the AC voltage circuit of the operating equipment. Therefore, generating AC voltage circuit safety measures is an important step before the work is carried out.

[0003] At present, in the process of writing the content of AC voltage circuit safety measures, the processing of the execution points of AC voltage circuit safety measures has the following problems:

[0004] 1. Currently, the preparation of safety measures mainly relies on manual operation, which requires staff to manually analyze and prepare safety measures based on experience and on-site conditions. This method is not only inefficient, but also prone to inaccurate or incomplete safety measures due to human negligence or errors, increasing operational risks.

[0005] 2. The connection relationship of the secondary AC voltage circuit of the substation is complex and changeable. It is very difficult to manually integrate this information to formulate comprehensive safety measures. The scattered and incomplete information may lead to incomplete formulation of safety measures and omission of key isolation points or measures.

[0006] 3. Manually written safety measures often lack unified standards and formats. Measures written by different personnel may differ, which not only increases the difficulty of understanding and implementation, but may also lead to inconsistent implementation of safety measures, affecting safety effects. In addition, the lack of standardization may also make it impossible to effectively compare and optimize safety measures in different substations or at different time points.

[0007] 4. With the development of technology and the replacement of personnel, the operation and maintenance knowledge of substations needs to be continuously updated and passed on. The manual method of writing safety measures may not be able to effectively record and convey best practices, and new employees may need a long time to become familiar with and master the relevant operations, which affects work efficiency and the quality of the implementation of safety measures. Summary of the invention

[0008] In view of this, the purpose of the present invention is to provide a method for automatically generating safety measures for the secondary AC voltage circuit of a substation based on the cable connection status of a loop model in order to improve the safety and operating efficiency of the secondary AC voltage circuit of a substation. By accurately distinguishing between working and non-working cabinets and automatically matching corresponding safety measures, the errors and risks of manual operation are reduced, ensuring the stable operation of the power system and the safety of personnel. The technical solutions adopted by the present invention are as follows:

[0009] A method for generating safety measures for a substation secondary AC voltage circuit based on a circuit model cable connection state, the method comprising the following steps:

[0010] S101, obtaining a power transmission and transformation engineering logic model file, parsing the power transformation engineering logic model, and obtaining a connection relationship between the model and the voltage loop;

[0011] S102, when there is work on site, the working panel cabinet is determined as a working panel cabinet, and the non-working panel cabinet is determined as a non-working panel cabinet, and the voltage circuit connection relationship between the terminal block wiring terminal of the working panel cabinet and the terminal block wiring terminal of the non-working panel cabinet is found to obtain all the voltage circuit connection relationships of the working panel cabinet to the outside;

[0012] S103, judging the type of each voltage circuit connection relationship of the working panel cabinet according to the voltage circuit connection relationship;

[0013] S104, for the no-voltage switching circuit, judging the subdivision type of the no-voltage switching circuit in combination with the voltage circuit connection relationship of the working panel cabinet;

[0014] S105, for a voltage switching circuit, determine the subdivision type of the voltage switching circuit in combination with the voltage circuit connection relationship of the working panel cabinet;

[0015] S106. Automatically generate safety measures based on the subdivision type of the voltage circuit connection relationship of the working panel cabinet.

[0016] Further, the obtaining of the model and the voltage loop connection relationship includes:

[0017] The models include: panel cabinet model, secondary device model, secondary device board model, secondary device board terminal model, voltage transformer secondary winding terminal model, circuit breaker model, circuit breaker terminal model, terminal segment model, terminal piece model, terminal piece terminal model;

[0018] The secondary device board model includes: a voltage switching node model in the secondary device board, and a voltage loop connection relationship between the voltage switching node in the secondary device board and the secondary device board terminal;

[0019] The voltage circuit connection relationship includes: the voltage circuit connection relationship between the secondary device board terminal and the circuit breaker terminal, the voltage circuit connection relationship between the secondary device board terminal and the terminal block terminal, the voltage circuit connection relationship between the voltage transformer secondary winding terminal and the circuit breaker terminal, the voltage circuit connection relationship between the voltage transformer secondary winding terminal and the terminal block terminal, the voltage circuit connection relationship between the circuit breaker terminal and the terminal block terminal, and the voltage circuit connection relationship between the terminal block terminal and the terminal block terminal;

[0020] According to the voltage loop connection relationship, a voltage full loop connection relationship is constructed starting from the voltage transformer secondary winding terminal at the polarity end, passing through the secondary device board terminal, circuit breaker terminal, terminal block terminal, and finally returning to the voltage transformer secondary winding terminal at the non-polarity end.

[0021] Furthermore, the determination of the type of connection relationship between the working panel cabinet and each external voltage circuit includes:

[0022] According to the connection relationship of all the voltage circuits of the working panel cabinet to the outside, for each of the voltage circuit connections of the working panel cabinet to the outside, find the terminal piece connection terminal A in the working panel cabinet that is used to connect the voltage circuit to the outside;

[0023] Based on the terminal block wiring terminal A, find all the voltage full-loop connection relationships passing through the terminal block wiring terminal A, and determine whether all the voltage full-loop connection relationships exist in the working panel cabinet. The voltage switching node model in the secondary device board card;

[0024] If any voltage full-circuit connection relationship does not have a voltage switching node model in the secondary device board in the working panel cabinet, the corresponding working panel cabinet external voltage circuit connection relationship is determined as no voltage switching circuit;

[0025] If any voltage full-loop connection relationship has a voltage switching node model in the secondary device board in the working panel cabinet, the corresponding working panel cabinet's external voltage loop connection relationship will be judged as having a voltage switching loop.

[0026] Further, the determining of the subdivision type of the voltage-free switching circuit includes:

[0027] Based on the terminal block wiring terminal A, all voltage full-loop connection relationships passing through the terminal block wiring terminal A are searched, and for each voltage full-loop connection relationship, the model is searched from the terminal block wiring terminal A along the connection direction from the polarity end to the non-polarity end to determine the model connection status between the terminal block wiring terminal A and the secondary device board wiring terminal model;

[0028] In the case where there is a circuit breaker terminal model between the terminal piece terminal A and the secondary device board terminal model, and there is another terminal piece terminal model connected between the circuit breaker terminal model and the secondary device board terminal model, the subdivision type of the no-voltage switching circuit is determined to be a no-voltage switching circuit-there is a terminal behind the circuit breaker;

[0029] In the case where there is a circuit breaker terminal model between the terminal piece terminal A and the secondary device board terminal model, but there is no other terminal piece terminal model connected between the circuit breaker terminal model and the secondary device board terminal model, the subdivision type of the no-voltage switching circuit is determined to be a no-voltage switching circuit-no circuit breaker or no terminal;

[0030] In the case where there is no circuit breaker terminal model connection between the terminal piece terminal A and the secondary device board terminal model, the subdivision type of the no-voltage switching circuit is determined to be a no-voltage switching circuit - no circuit breaker or no terminal.

[0031] Further, the determining of the subdivision type of the voltage switching circuit includes:

[0032] Based on the terminal block wiring terminal A, find all voltage full-loop connection relationships passing through the terminal block wiring terminal A, and for each voltage full-loop connection relationship, follow the connection direction from the polarity end to the non-polarity end to determine the sequence relationship between the terminal block wiring terminal A and the voltage switching node model in the secondary device board;

[0033] For a voltage switching circuit with a terminal block connection terminal A after the voltage switching node model in the secondary device board, the subdivision type of the voltage switching circuit is determined to be a voltage switching circuit-voltage output after switching;

[0034] For a voltage switching circuit where the terminal block connection terminal A is before the voltage switching node model in the secondary device board, the subdivision type of the voltage switching circuit is determined as for the voltage switching circuit-circuit before voltage switching;

[0035] Based on the terminal block wiring terminal A, follow the connection direction from the polarity end to the non-polarity end, and in the working panel cabinet, find the model connection between the voltage switching node model in the secondary device board and the wiring terminal model of the secondary device board;

[0036] In the case where there is an air switch terminal model between the voltage switching node model in the secondary device board and the secondary device board terminal model, and there is another terminal block terminal model connected between the air switch terminal model and the secondary device board terminal model, the subdivision type of the voltage circuit is determined as a voltage switching circuit - the air switch has terminals after switching;

[0037] In the case where there is a circuit breaker terminal model between the voltage switching node model in the secondary device board and the secondary device board terminal model, but there is no other terminal block terminal model connected between the circuit breaker terminal model and the secondary device board terminal model, the subdivision type of the voltage circuit is determined as a voltage switching circuit - no circuit breaker or terminal after switching;

[0038] In the case where there is no circuit breaker terminal model connection between the voltage switching node model in the secondary device board and the secondary device board terminal model, the subdivision type of the voltage circuit is determined as a voltage switching circuit - no circuit breaker or terminal after switching.

[0039] Furthermore, the automatic generation of safety measures includes: for a voltage circuit connection relationship between a non-voltage switching circuit and a voltage circuit with terminals behind the circuit breaker, the first step of the safety measures is to pull open the circuit breaker, the second step is to open the terminal connection piece of the rear terminal of the circuit breaker, and the third step is to seal the front terminal of the circuit breaker;

[0040] For the voltage circuit connection relationship of no voltage switching circuit - no circuit breaker or no terminal, the first step of the safety measure is to open the terminal connection piece at the front end of the circuit breaker, and the second step is to seal the non-working side terminal of the front terminal of the circuit breaker;

[0041] For the voltage circuit connection relationship between the voltage switching circuit and the voltage output after switching, no safety measures are taken;

[0042] For the voltage circuit connection relationship of the voltage switching circuit-the circuit before voltage switching, the first step of the safety measure is to open the terminal connection piece of the terminal, and the second step is to seal the non-working side terminal of the terminal;

[0043] For the voltage circuit connection relationship between the voltage switching circuit and the circuit breaker with terminals after switching, the first step of the safety measure is to pull the circuit breaker open, the second step is to open the terminal connecting piece of the rear terminal of the circuit breaker, and the third step is to seal the front terminal of the circuit breaker;

[0044] For a voltage switching circuit with no circuit breaker or terminal after switching, the first safety measure is to open the terminal connecting piece at the front end of the circuit breaker, and the second step is to seal the non-working side terminal of the front terminal of the circuit breaker.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] The embodiment of the present invention provides a method for automatically generating safety measures for the secondary AC voltage circuit of a substation based on the cable connection status of a loop model, including: identifying the connection relationship between the secondary circuit model of the substation and the voltage circuit by parsing a logic model file. According to the on-site work, the working panel cabinet and the non-working panel cabinet are distinguished, the voltage circuit connection between the two is analyzed, and the external voltage circuit of the working panel cabinet is determined. The loop connection subdivision type is judged according to the voltage loop connection relationship, and different safety measures are automatically matched for each voltage loop subdivision type. Search logic is executed, and finally the corresponding safety measures are automatically generated. The advantage of this patented method is that by accurately distinguishing the voltage loop subdivision loop type and automatically matching the corresponding safety measures, the safety and operating efficiency of the secondary AC voltage circuit of the substation are improved, the errors and risks of manual operation are reduced, and the stable operation of the power system and the safety of personnel are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0048] Figure 1 The present invention provides a schematic diagram of the implementation process of a method for automatically generating safety measures for a substation secondary AC voltage circuit based on the cable connection status of a circuit model, provided in an embodiment of the present invention.

[0049] Figure 2 It is a framework diagram of the implementation process of a method for automatically generating safety measures for a substation secondary AC voltage circuit based on the cable connection status of a circuit model provided by an embodiment of the present invention.

[0050] Figure 3 It is a schematic diagram of a no-voltage switching circuit safety measure of a method for automatically generating safety measures for a substation secondary AC voltage circuit based on the cable connection status of a circuit model provided by an embodiment of the present invention.

[0051] Figure 4 It is a schematic diagram of a voltage switching circuit-voltage output after switching and a voltage switching circuit-circuit safety measures before voltage switching, of a method for automatically generating safety measures for a substation secondary AC voltage circuit based on the cable connection status of a circuit model provided by an embodiment of the present invention.

[0052] Figure 5 The present invention provides a method for automatically generating safety measures for a substation secondary AC voltage circuit based on the cable connection status of a circuit model, and a schematic diagram of safety measures for a voltage switching circuit-breaker after switching with terminals.

[0053] Figure 6 It is a schematic diagram of a voltage switching circuit - no circuit breaker or no terminal safety measure after switching, of a method for automatically generating safety measures for a substation secondary AC voltage circuit based on the cable connection status of a circuit model provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0054] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The enumerated embodiments are only used to explain the present invention and are not used to limit the scope of the present invention.

[0055] See also Figure 1-Figure 6 The embodiment of the present invention provides a method for automatically generating safety measures for a substation secondary AC voltage circuit based on the cable connection status of a circuit model, the method comprising the following steps:

[0056] S101: Obtain a power transmission and transformation project logic model file, parse the power transformation project logic model, and obtain a connection relationship between the model and the voltage loop.

[0057] Preferably, S101 includes:

[0058] The models include: panel cabinet model, secondary device model, secondary device board model, secondary device board terminal model, voltage transformer secondary winding terminal model, circuit breaker model, circuit breaker terminal model, terminal segment model, terminal piece model, and terminal piece terminal model.

[0059] The secondary device board model includes: a voltage switching node model in the secondary device board, and a voltage loop connection relationship between the voltage switching node in the secondary device board and the secondary device board terminal.

[0060] The voltage circuit connection relationship includes: the voltage circuit connection relationship between the secondary device board terminal and the circuit breaker terminal, the voltage circuit connection relationship between the secondary device board terminal and the terminal strip terminal, the voltage circuit connection relationship between the voltage transformer secondary winding terminal and the circuit breaker terminal, the voltage circuit connection relationship between the voltage transformer secondary winding terminal and the terminal strip terminal, the voltage circuit connection relationship between the circuit breaker terminal and the terminal strip terminal, and the voltage circuit connection relationship between the terminal strip terminals and the terminal strip terminals.

[0061] According to the voltage loop connection relationship, a voltage full loop connection relationship is constructed starting from the voltage transformer secondary winding terminal at the polarity end, passing through the secondary device board terminal, circuit breaker terminal, terminal block terminal, and finally returning to the voltage transformer secondary winding terminal at the non-polarity end.

[0062] S102: When work is being carried out on site, the working cabinet is determined as a working cabinet, and the non-working cabinet is determined as a non-working cabinet. The voltage circuit connection relationship between the working cabinet terminal block wiring terminal and the non-working cabinet terminal block wiring terminal is found to obtain all the external voltage circuit connection relationships of the working cabinet.

[0063] S103: According to the voltage circuit connection relationship, determine the type of each voltage circuit connection relationship of the working panel cabinet to the outside.

[0064] Preferably, S103 includes:

[0065] According to the connection relationship of all the external voltage circuits of the working panel cabinet in the previous step, for each of the external voltage circuit connections of the working panel cabinet, find the terminal block connection terminal A in the working panel cabinet that constructs the external voltage circuit connection.

[0066] Based on the terminal block wiring terminal A, find all the voltage full-circuit connection relationships passing through the terminal block wiring terminal A, and determine whether all the voltage full-circuit connection relationships exist in the working panel cabinet. The voltage switching node model in the secondary device board card:

[0067] If any voltage full-circuit connection relationship does not have a voltage switching node model in the secondary device board in the working panel cabinet, the corresponding working panel cabinet's external voltage circuit connection relationship will be judged as having no voltage switching circuit.

[0068] If any voltage full-loop connection relationship has a voltage switching node model in the secondary device board in the working panel cabinet, the corresponding working panel cabinet's external voltage loop connection relationship will be judged as having a voltage switching loop.

[0069] S104: For the no-voltage switching circuit, the subdivision type of the no-voltage switching circuit is determined in combination with the voltage circuit connection relationship of the working panel cabinet.

[0070] Preferably, S104 includes:

[0071] Based on the terminal strip wiring terminal A, all voltage full-loop connection relationships passing through the terminal strip wiring terminal A are searched. For each voltage full-loop connection relationship, the model is searched from the terminal strip wiring terminal A along the connection direction from the polarity end to the non-polarity end to determine the model connection status between the terminal strip wiring terminal A and the secondary device board wiring terminal model.

[0072] In the case where there is a circuit breaker terminal model between the terminal piece terminal A and the secondary device board terminal model, and there is another terminal piece terminal model connected between the circuit breaker terminal model and the secondary device board terminal model, the subdivision type of the no-voltage switching circuit is determined to be a no-voltage switching circuit - there is a terminal after the circuit breaker.

[0073] In the case where there is an air switch terminal model between the terminal strip terminal A and the secondary device board terminal model, but there is no other terminal strip terminal model connected between the air switch terminal model and the secondary device board terminal model, the subdivision type of the no-voltage switching circuit is determined to be a no-voltage switching circuit - no air switch or no terminal.

[0074] In the case where there is no circuit breaker terminal model connection between the terminal piece terminal A and the secondary device board terminal model, the subdivision type of the no-voltage switching circuit is determined to be a no-voltage switching circuit - no circuit breaker or no terminal.

[0075] S105: For a voltage switching circuit, determine the subdivision type of the voltage switching circuit in combination with the voltage circuit connection relationship of the working panel cabinet.

[0076] Preferably, S105 includes: specifically including:

[0077] First, based on the terminal strip terminal A, all voltage full-loop connection relationships passing through the terminal strip terminal A are searched. For each voltage full-loop connection relationship, the connection direction from the polarity end to the non-polarity end is followed to determine the sequence relationship between the terminal strip terminal A and the voltage switching node model in the secondary device board.

[0078] For the voltage switching circuit with terminal block connection terminal A after the voltage switching node model in the secondary device board, the subdivision type of the voltage switching circuit is determined to be voltage switching circuit-voltage output after switching.

[0079] For a voltage-switching circuit in which the terminal strip connection terminal A is located before the voltage-switching node model in the secondary device board, the subdivision type of the voltage-switching circuit is determined as a voltage-switching circuit-circuit before voltage switching.

[0080] Then, based on the terminal block terminal A, along the connection direction from the polarity end to the non-polarity end, in the working panel cabinet, find the model connection between the voltage switching node model in the secondary device board and the secondary device board terminal model.

[0081] In the case where there is an air switch terminal model between the voltage switching node model in the secondary device board and the secondary device board terminal model, and there is another terminal block terminal model connected between the air switch terminal model and the secondary device board terminal model, the subdivision type of the voltage circuit is determined to be a voltage switching circuit - the air switch has terminals after switching.

[0082] In the case where there is an air switch terminal model between the voltage switching node model in the secondary device board and the secondary device board terminal model, but there is no other terminal block terminal model connected between the air switch terminal model and the secondary device board terminal model, the subdivision type of the voltage circuit is determined as a voltage switching circuit - no air switch or terminal after switching.

[0083] In the case where there is no circuit breaker terminal model connection between the voltage switching node model in the secondary device board and the secondary device board terminal model, the subdivision type of the voltage circuit is determined as a voltage switching circuit - no circuit breaker or terminal after switching.

[0084] S106: Safety measures are automatically generated according to the subdivision type of the voltage circuit connection relationship of the working panel cabinet.

[0085] Preferably, S106 includes: for the connection relationship between the no-voltage switching circuit and the voltage circuit with terminals behind the circuit breaker, the first step of the safety measure is to pull open the circuit breaker, the second step is to open the terminal connecting piece of the rear terminal of the circuit breaker, and the third step is to seal the front terminal of the circuit breaker.

[0086] For the voltage circuit connection relationship of no-voltage switching circuit - no circuit breaker or no terminal, the first step of the safety measure is to open the terminal connecting piece at the front end of the circuit breaker, and the second step is to seal the non-working side terminal of the front terminal of the circuit breaker.

[0087] No safety measures are taken for the voltage circuit connection relationship of a voltage switching circuit and a voltage output after switching.

[0088] For a voltage circuit connection relationship of a voltage switching circuit-a circuit before voltage switching, the first step of the safety measure is to open the terminal connection piece of the terminal, and the second step is to seal the non-working side terminal of the terminal.

[0089] For the voltage circuit connection relationship between a voltage switching circuit and a circuit breaker with terminals after switching, the first step of the safety measure is to pull open the circuit breaker, the second step is to open the terminal connecting piece at the rear end of the circuit breaker, and the third step is to seal the front terminal of the circuit breaker.

[0090] For a voltage switching circuit with no circuit breaker or terminal after switching, the first safety measure is to open the terminal connecting piece at the front end of the circuit breaker, and the second step is to seal the non-working side terminal of the front terminal of the circuit breaker.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for generating safety measures for a substation secondary AC voltage circuit based on the cable connection status of a circuit model, characterized in that: The method comprises the following steps: S101, obtaining a power transmission and transformation project logic model file, parsing the power transformation project logic model, and obtaining a connection relationship between the model and the voltage loop, wherein obtaining the connection relationship between the model and the voltage loop includes: The models include: panel cabinet model, secondary device model, secondary device board model, secondary device board terminal model, voltage transformer secondary winding terminal model, circuit breaker model, circuit breaker terminal model, terminal segment model, terminal piece model, terminal piece terminal model; The secondary device board model includes: a voltage switching node model in the secondary device board, and a voltage loop connection relationship between the voltage switching node in the secondary device board and the secondary device board terminal; The voltage circuit connection relationship includes: the voltage circuit connection relationship between the secondary device board terminal and the circuit breaker terminal, the voltage circuit connection relationship between the secondary device board terminal and the terminal block terminal, the voltage circuit connection relationship between the voltage transformer secondary winding terminal and the circuit breaker terminal, the voltage circuit connection relationship between the voltage transformer secondary winding terminal and the terminal block terminal, the voltage circuit connection relationship between the circuit breaker terminal and the terminal block terminal, and the voltage circuit connection relationship between the terminal block terminal and the terminal block terminal; According to the voltage loop connection relationship, a voltage full loop connection relationship is constructed starting from the voltage transformer secondary winding terminal at the polarity end, passing through the secondary device board terminal, the circuit breaker terminal, the terminal block terminal, and finally returning to the voltage transformer secondary winding terminal at the non-polarity end; S102, when there is work on site, the working panel cabinet is determined as a working panel cabinet, and the non-working panel cabinet is determined as a non-working panel cabinet, and the voltage circuit connection relationship between the terminal block wiring terminal of the working panel cabinet and the terminal block wiring terminal of the non-working panel cabinet is found to obtain all the voltage circuit connection relationships of the working panel cabinet to the outside; S103, judging the type of each voltage circuit connection relationship of the working panel cabinet to the outside according to the voltage circuit connection relationship, wherein judging the type of each voltage circuit connection relationship of the working panel cabinet to the outside includes: According to the connection relationship of all the voltage circuits of the working panel cabinet to the outside, for each of the voltage circuit connections of the working panel cabinet to the outside, find the terminal piece connection terminal A in the working panel cabinet that is used to connect the voltage circuit to the outside; Based on the terminal block wiring terminal A, find all the voltage full-loop connection relationships passing through the terminal block wiring terminal A, and determine whether all the voltage full-loop connection relationships exist in the working panel cabinet. The voltage switching node model in the secondary device board card; If any voltage full-circuit connection relationship does not have a voltage switching node model in the secondary device board in the working panel cabinet, the corresponding working panel cabinet external voltage circuit connection relationship is determined as no voltage switching circuit; If any voltage full-circuit connection relationship has a voltage switching node model in the secondary device board in the working panel cabinet, the corresponding working panel cabinet's external voltage circuit connection relationship is judged to have a voltage switching circuit; S104: for the no-voltage switching circuit, in combination with the voltage circuit connection relationship of the working panel cabinet, determine the subdivision type of the no-voltage switching circuit, wherein determining the subdivision type of the no-voltage switching circuit includes: Based on the terminal block wiring terminal A, all voltage full-loop connection relationships passing through the terminal block wiring terminal A are searched, and for each voltage full-loop connection relationship, the model is searched from the terminal block wiring terminal A along the connection direction from the polarity end to the non-polarity end to determine the model connection status between the terminal block wiring terminal A and the secondary device board wiring terminal model; In the case where there is a circuit breaker terminal model between the terminal piece terminal A and the secondary device board terminal model, and there is another terminal piece terminal model connected between the circuit breaker terminal model and the secondary device board terminal model, the subdivision type of the no-voltage switching circuit is determined to be a no-voltage switching circuit-there is a terminal behind the circuit breaker; In the case where there is a circuit breaker terminal model between the terminal piece terminal A and the secondary device board terminal model, but there is no other terminal piece terminal model connected between the circuit breaker terminal model and the secondary device board terminal model, the subdivision type of the no-voltage switching circuit is determined to be a no-voltage switching circuit-no circuit breaker or no terminal; In the case where there is no circuit breaker terminal model connection between the terminal block terminal A and the secondary device board terminal model, the subdivision type of the no-voltage switching circuit is determined to be a no-voltage switching circuit-no circuit breaker or no terminal; S105: For a voltage switching circuit, the subdivision type of the voltage switching circuit is determined in combination with the voltage circuit connection relationship of the working panel cabinet, wherein the determination of the subdivision type of the voltage switching circuit includes: Based on the terminal block wiring terminal A, find all voltage full-loop connection relationships passing through the terminal block wiring terminal A, and for each voltage full-loop connection relationship, follow the connection direction from the polarity end to the non-polarity end to determine the sequence relationship between the terminal block wiring terminal A and the voltage switching node model in the secondary device board; For a voltage switching circuit with a terminal block connection terminal A after the voltage switching node model in the secondary device board, the subdivision type of the voltage switching circuit is determined to be a voltage switching circuit-voltage output after switching; For a voltage switching circuit where the terminal block connection terminal A is before the voltage switching node model in the secondary device board, the subdivision type of the voltage switching circuit is determined to be a voltage switching circuit-circuit before voltage switching; Based on the terminal block wiring terminal A, follow the connection direction from the polarity end to the non-polarity end, and in the working panel cabinet, find the model connection between the voltage switching node model in the secondary device board and the wiring terminal model of the secondary device board; In the case where there is an air switch terminal model between the voltage switching node model in the secondary device board and the secondary device board terminal model, and there is another terminal block terminal model connected between the air switch terminal model and the secondary device board terminal model, the subdivision type of the voltage circuit is determined as a voltage switching circuit - the air switch has terminals after switching; In the case where there is a circuit breaker terminal model between the voltage switching node model in the secondary device board and the secondary device board terminal model, but there is no other terminal block terminal model connected between the circuit breaker terminal model and the secondary device board terminal model, the subdivision type of the voltage circuit is determined as a voltage switching circuit - no circuit breaker or terminal after switching; If there is no circuit breaker terminal model connection between the voltage switching node model in the secondary device board and the wiring terminal model of the secondary device board, the subdivision type of the voltage circuit is determined as a voltage switching circuit - no circuit breaker or no terminal after switching. S106, automatically generating safety measures according to the subdivision type of the voltage circuit connection relationship of the working panel cabinet, wherein the automatically generated safety measures include: for a voltage circuit connection relationship of a non-voltage switching circuit and a terminal behind the circuit breaker, the first step of the safety measures is to pull open the circuit breaker, the second step is to open the terminal connection piece of the rear terminal of the circuit breaker, and the third step is to seal the front terminal of the circuit breaker; For the voltage circuit connection relationship of no voltage switching circuit - no circuit breaker or no terminal, the first step of the safety measure is to open the terminal connection piece at the front end of the circuit breaker, and the second step is to seal the non-working side terminal of the front terminal of the circuit breaker; For the voltage circuit connection relationship between the voltage switching circuit and the voltage output after switching, no safety measures are taken; For the voltage circuit connection relationship of the voltage switching circuit-the circuit before voltage switching, the first step of the safety measure is to open the terminal connection piece of the terminal, and the second step is to seal the non-working side terminal of the terminal; For the voltage circuit connection relationship between the voltage switching circuit and the circuit breaker with terminals after switching, the first step of the safety measure is to pull the circuit breaker open, the second step is to open the terminal connecting piece of the rear terminal of the circuit breaker, and the third step is to seal the front terminal of the circuit breaker; For a voltage switching circuit with no circuit breaker or terminal after switching, the first safety measure is to open the terminal connecting piece at the front end of the circuit breaker, and the second step is to seal the non-working side terminal of the front terminal of the circuit breaker.

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