Trip control method, system and device of non-electric quantity protection system, and medium

By setting multiple temperature judgment thresholds and modules in the non-power protection system, the tripping is only performed when the data of the two modules are consistent, and the malfunction problem caused by oil surface thermometer failure is solved, and the accuracy and reliability of the system are improved.

CN120237593APending Publication Date: 2025-07-01YALONG RIVER HYDROPOWER DEV CO LTD
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Patent Information

Application Number
CN202510381624.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2025-07-01

AI Technical Summary

Technical Problem

In the existing non-power protection systems, there is a risk of malfunctioning tripping caused by oil surface thermometer failure, and there is a risk of malfunctioning of non-power protection systems.

Method used

Two acquisition modules are set to set multiple temperature judgment thresholds respectively, and the alarm signal or trip control signal is output through the comparison results of multiple temperature data to ensure that the trip action is performed only when both modules meet the trigger conditions.

Benefits of technology

It effectively avoids misjudgment caused by failure of a single acquisition module, improves the accuracy of tripping control, and reduces the occurrence of malfunctions.

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Abstract

The invention relates to the technical field of over-current protection, in particular to a tripping control method, system and device of a non-electric quantity protection system and a medium, and mainly comprises the steps that a first temperature judgment threshold value and a second temperature judgment threshold value of a first acquisition module are set; setting a third temperature judgment threshold value and a fourth temperature judgment threshold value acquired by a second acquisition module, and according to the comparison results of the first temperature data and the first temperature judgment threshold value, the second temperature judgment threshold value, the third temperature judgment threshold value and the fourth temperature judgment threshold value and the comparison results of the second temperature data and the first temperature judgment threshold value, the second temperature judgment threshold value and the fourth temperature judgment threshold value; and outputting an alarm signal or sending out a control signal of a tripping action. According to the method, smooth tripping can be carried out only when the temperatures acquired by the two acquisition modules reach the temperature of the control signal for triggering the tripping action, so that misjudgment caused by contact closing due to over-high oil temperature caused by faults of the acquisition modules when only one acquisition module exists is avoided as far as possible.
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Description

Technical Field

[0001] The present invention relates to the technical field of overcurrent protection, and in particular, to a tripping control method, system, device, and medium for a non-electrical quantity protection system. Background Art

[0002] The non-electrical quantity protection system of a hydropower plant is mainly used for the protection of the main transformer of the hydropower plant, including protection functions such as full-stop delay tripping of the main transformer cooler, main transformer heavy gas tripping, main transformer oil temperature too high tripping, and excitation transformer temperature too high tripping.

[0003] When the temperature of an oil level thermometer of a certain unit's main transformer reaches a certain temperature, the high-temperature contact of the oil level thermometer closes. However, if the oil level thermometer fails at this time, it will also cause the high-temperature contact of the oil temperature to close, and the non-electrical quantity protection system will trip, resulting in the risk of misoperation and tripping of the non-electrical quantity protection system. Summary of the Invention

[0004] The purpose of the present invention is to provide a tripping control method, system, device, and medium for a non-electrical quantity protection system to solve the above problems in the prior art.

[0005] The present invention is achieved through the following technical solutions:

[0006] In a first aspect, a tripping control method for a non-electrical quantity protection system provided by the present invention includes:

[0007] Set a first temperature judgment threshold and a second temperature judgment threshold for the first acquisition module, and set a third temperature judgment threshold and a fourth temperature judgment threshold collected by the second acquisition module. The first temperature judgment threshold is less than the second temperature judgment threshold, the third temperature judgment threshold is less than the fourth temperature judgment threshold, and the fourth temperature judgment threshold is less than the second temperature judgment threshold;

[0008] Obtain the first temperature data of the transformer collected by the first acquisition module and the second temperature data of the transformer collected by the second acquisition module, and output an alarm signal or issue a control signal for a tripping action according to the comparison results of the first temperature data and the second temperature data with the first temperature judgment threshold, the second temperature judgment threshold, the third temperature judgment threshold, and the fourth temperature judgment threshold.

[0009] Preferably, the outputting of the alarm signal or the issuing of the control signal for the tripping action includes:

[0010] If it is satisfied that the first temperature data is less than the first temperature judgment threshold and at the same time the second temperature data is less than the second temperature judgment threshold, no alarm is made;

[0011] If only the first temperature data being less than the first temperature judgment threshold and the second temperature data being less than the third temperature judgment threshold occur separately, an alarm signal is sent;

[0012] If the first temperature data is not less than the first temperature judgment threshold, the second temperature data is not less than the third temperature judgment threshold, and the first temperature data is less than the second temperature judgment threshold, an alarm signal is sent;

[0013] If the first temperature data is not less than the second temperature judgment threshold and the second temperature data is not less than the fourth temperature judgment threshold, a control signal for executing a tripping operation is sent.

[0014] Preferably, it further includes:

[0015] After receiving the control signal for executing a tripping operation, the current data in the current main transformer is obtained. If it is determined that the current data is zero, a feedback signal of successful tripping is sent;

[0016] If it is not zero, it is determined whether the current data is consistent with the current data before tripping. If it is inconsistent, a feedback signal of tripping failure is sent;

[0017] If it is consistent, a feedback signal of tripping failure is sent, the temperature of the current transformer is obtained, and based on the current transformer temperature data, it is determined whether to send a control signal for secondary power-off. The influence range of the secondary power-off is greater than the influence range of the tripping operation.

[0018] Preferably, the obtaining the temperature of the current transformer includes:

[0019] Select several temperature acquisition points of the transformer, and obtain several temperature values through the several temperature acquisition points;

[0020] Based on the several temperature values, the target temperature value of the current transformer is calculated, a judgment model is established, based on the target temperature value and the judgment model, the current judgment value is calculated, and an execution threshold is set. According to the judgment value and the execution threshold, it is output whether to send a control signal for secondary power-off.

[0021] Preferably, the calculating the target temperature value of the current transformer based on the several temperature values includes:

[0022]

[0023] In the formula, T s is the target temperature value, S i is the distance from the i-th temperature acquisition point to the geometric center of the transformer, S z is the total distance from all temperature acquisition points to the geometric center of the transformer, T iis the temperature value of the i-th temperature acquisition point, and m is the number of temperature acquisition points.

[0024] Preferably, the establishing of the judgment model includes:

[0025]

[0026] In the formula, T a is the second temperature judgment threshold, P e is the generated power loss after secondary power failure, P k is the generated power of the hydropower station, Q l is the loss value per hour after secondary power failure, Q t is the generated power value per hour of the hydropower station.

[0027] In a second aspect, a tripping control system for a non-electric quantity protection system provided by the present invention includes:

[0028] A threshold setting module configured to set multiple alarm levels, where the alarm levels include ordinary alarms and serious alarms; set a first temperature judgment threshold and a second temperature judgment threshold for the first acquisition module, and set a third temperature judgment threshold and a fourth temperature judgment threshold collected by the second acquisition module, the first temperature judgment threshold is less than the second temperature judgment threshold, the third temperature judgment threshold is less than the fourth temperature judgment threshold, and the fourth temperature judgment threshold is less than the second temperature judgment threshold;

[0029] A judgment module configured to obtain the first temperature data of the transformer collected by the first acquisition module and the second temperature data of the transformer collected by the second acquisition module, and output an alarm signal or issue a control signal for a tripping action according to the comparison results of the first temperature data and the second temperature data with the first temperature judgment threshold, the second temperature judgment threshold, the third temperature judgment threshold, and the fourth temperature judgment threshold;

[0030] A main control module, connected to the threshold setting module and the judgment module, for executing the above-mentioned tripping control method of a non-electric quantity protection system.

[0031] In a third aspect, the present invention also provides a tripping control device for a non-electric quantity protection system, including a processing module, a first oil surface thermometer, a second oil surface thermometer, an alarm signal module, and a tripping control module. The first oil surface thermometer and the second oil surface thermometer are connected in parallel with the alarm signal module, and the first oil surface thermometer and the second oil surface thermometer are connected in series with the tripping control module;

[0032] The processing module is connected to the first oil surface thermometer and the second oil surface thermometer for executing the above-mentioned tripping control method of a non-electric quantity protection system.

[0033] Preferably, the first oil level thermometer includes a first trigger module and a second trigger module, the second oil level thermometer includes a third trigger module and a fourth trigger module, the first trigger module and the third trigger module are connected in parallel with the alarm signal module, and the second trigger module and the fourth trigger module are connected in series with the trip control module.

[0034] In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the tripping control method of a non-electrical protection system is implemented.

[0035] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0036] The method or system provided by the present invention mainly includes setting the first temperature judgment threshold and the second temperature judgment threshold of the first acquisition module, setting the third temperature judgment threshold and the fourth temperature judgment threshold collected by the second acquisition module, and outputting an alarm signal or sending a control signal for a tripping action according to the comparison results of the first temperature data and the second temperature data with the first temperature judgment threshold, the second temperature judgment threshold, the third temperature judgment threshold and the fourth temperature judgment threshold. Through the above method, a smooth trip can only be performed when the temperatures collected by the two acquisition modules have reached the temperature that triggers the sending of the control signal for the tripping action, so as to avoid as much as possible the misjudgment caused by the closing of the contacts of the acquisition module due to the excessive oil temperature when there is only one acquisition module. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 is a process control diagram of the present invention;

[0039] Figure 2 It is a schematic diagram of the circuit structure of the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] The terms "first", "second", etc. in the description, claims and the above-mentioned drawings of this application are used to distinguish similar objects and do not necessarily describe a specific order or sequence. The naming or numbering of steps in this application does not mean that the steps in the method flow must be executed in the time / logical sequence indicated by the naming or numbering. The named or numbered process steps can be changed in the execution order according to the technical purpose to be achieved, as long as the same or similar technical effects can be achieved.

[0042] The independently described modules or sub-modules can be physically separated or not: they can be implemented in software or in hardware, and some of the modules or sub-modules can be implemented in software, and the functions of these modules or sub-modules are called by the processor, and other parts of the modules or sub-modules are implemented in hardware, for example, through a hardware circuit. In addition, some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this application.

[0043] Please refer to Figure 1 - Figure 2 , a tripping control method for a non-electric quantity protection system provided by the present invention, includes:

[0044] S101: Set the first temperature judgment threshold and the second temperature judgment threshold of the first acquisition module, set the third temperature judgment threshold and the fourth temperature judgment threshold collected by the second acquisition module, the first temperature judgment threshold is less than the second temperature judgment threshold, the third temperature judgment threshold is less than the fourth temperature judgment threshold, and the fourth temperature judgment threshold is less than the second temperature judgment threshold;

[0045] In this embodiment, two acquisition modules are set, and two judgment thresholds are respectively set for the two acquisition modules. The data collected by the two acquisition modules are combined for judgment, and finally the control logic for tripping is given.

[0046] Among them, the first temperature judgment threshold and the third temperature judgment threshold are the same value, which is used as a basis for starting an alarm. The second temperature and the fourth temperature judgment thresholds are set to two different values to distinguish the judgment basis for alarm or tripping.

[0047] The purpose of such a setting is, on the one hand, to use two acquisition modules to reduce the possibility of misjudgment. Secondly, the two acquisition modules have different judgment thresholds and can give different judgment results, such as alarm or tripping.

[0048] S102: Obtain the first temperature data of the transformer collected by the first acquisition module and the second temperature data of the transformer collected by the second acquisition module, and output an alarm signal or send a control signal for a tripping action according to the comparison results of the first temperature data and the second temperature data with the first temperature judgment threshold, the second temperature judgment threshold, the third temperature judgment threshold and the fourth temperature judgment threshold.

[0049] The method or system provided by the present invention mainly includes setting the first temperature judgment threshold and the second temperature judgment threshold of the first acquisition module, setting the third temperature judgment threshold and the fourth temperature judgment threshold collected by the second acquisition module, and outputting an alarm signal or sending a control signal for a tripping action according to the comparison results of the first temperature data and the second temperature data with the first temperature judgment threshold, the second temperature judgment threshold, the third temperature judgment threshold and the fourth temperature judgment threshold. Through the above method, a smooth trip can only be performed when the temperatures collected by the two acquisition modules have reached the temperature that triggers the sending of the control signal for the tripping action, so as to avoid as much as possible the misjudgment caused by the closing of the contacts of the acquisition module due to the excessive oil temperature when there is only one acquisition module.

[0050] In an exemplary embodiment of the present invention, outputting an alarm signal or issuing a control signal for a tripping action includes:

[0051] If the first temperature data is less than the first temperature judgment threshold and the second temperature data is less than the second temperature judgment threshold, no alarm is issued;

[0052] If the first temperature data is less than the first temperature judgment threshold and the second temperature data is less than the third temperature judgment threshold only occur separately, sending an alarm signal;

[0053] If the first temperature data is not less than the first temperature judgment threshold, and the second temperature data is not less than the third temperature judgment threshold, and the first temperature data is less than the second temperature judgment threshold, an alarm signal is sent;

[0054] If the first temperature data is not less than the second temperature judgment threshold, and the second temperature data is not less than the fourth temperature judgment threshold, a control signal for executing a tripping action is sent.

[0055] Regarding the above-mentioned control logic, it can be understood that only when the first temperature data is not less than the second temperature judgment threshold and the second temperature data is not less than the fourth temperature judgment threshold, a control signal for executing the tripping action is sent. In principle, the first temperature data should be consistent with the second temperature data, but there may be a fault, resulting in inconsistency between the two temperature data.

[0056] If the first temperature data is less than the first temperature judgment threshold and the second temperature data is less than the second temperature judgment threshold at the same time, no alarm is made.

[0057] Except for the conditions corresponding to not making an alarm and sending a control signal for executing a tripping action, other conditions are for sending an alarm signal. Secondly, in this embodiment, the oil temperature of the transformer reflected by the alarm signal is high, and the oil temperature of the transformer reflected by the tripping action is too high.

[0058] An exemplary embodiment of the present invention further includes:

[0059] After receiving the control signal for executing a tripping action, obtain the current current data in the main transformer. If it is determined that the current current data is zero, send a feedback signal indicating successful tripping;

[0060] If it is not zero, determine whether the current current data is consistent with the current data before tripping. If it is inconsistent, send a feedback signal indicating a tripping failure;

[0061] If it is consistent, send a feedback signal indicating a tripping failure, obtain the current temperature of the transformer, and determine whether to send a control signal for secondary power-off based on the current transformer temperature data. The influence range of the secondary power-off is greater than that of the tripping action.

[0062] Specifically, obtaining the current temperature of the transformer includes:

[0063] Select several temperature acquisition points of the transformer and obtain several temperature values through the several temperature acquisition points;

[0064] Based on the several temperature values, calculate the target temperature value of the current transformer, establish a judgment model, calculate the current judgment value based on the target temperature value and the judgment model, set an execution threshold, and output whether to send a control signal for secondary power-off according to the judgment value and the execution threshold.

[0065] In this embodiment, if a tripping failure occurs, in order to avoid a greater accident, it is necessary to immediately determine whether to perform a power-off in a larger range. For example, the tripping action is only executed on a certain transformer, and the secondary power-off may be a complete power-off of a certain partition of the power generation plant. However, this situation may cause greater losses than the transformer failure. Therefore, it is necessary to evaluate through a judgment model whether to immediately send a control signal for secondary power-off or wait for the staff to perform on-site maintenance of the transformer.

[0066] Specifically, calculating the target temperature value of the current transformer based on the several temperature values includes:

[0067]

[0068] Wherein, T s is the target temperature value, S i is the distance from the i-th temperature acquisition point to the geometric center of the transformer, S z is the total distance from all temperature acquisition points to the geometric center of the transformer, T i is the temperature value of the i-th temperature acquisition point, and m is the number of temperature acquisition points.

[0069] In this embodiment, instead of using the conventional method of collecting temperature at a certain point, this solution first selects several representative acquisition points, and then calculates through the function set in this solution to obtain a relatively objective temperature value, which can be directly obtained by infrared temperature measurement during the implementation process.

[0070] Secondly, the established judgment model includes:

[0071]

[0072] Wherein, T a is the second temperature judgment threshold, T s is the target temperature value, P e is the power generation power lost after the secondary power outage, P k is the power generation power of the hydropower station, Q l is the loss value per hour after the secondary power outage, Q t is the power generation value per hour of the hydropower station.

[0073] This judgment model combines the power generation power to be lost and the value of the lost power generation. The value can be converted into the relationship between the generated electricity and the current market price. In this way, by comparing the relationship between the local losses (such as shutdown power and power generation income) during power outage and the overall power generation capacity of the power station, losses outweighing gains can be avoided. Although a certain transformer may be lost, the long-term power generation value of the power station is protected. This kind of trade-off helps to allocate resources under the goal of maximizing the total revenue and improve the overall economic efficiency.

[0074] On the second aspect, a tripping control system of a non-electric quantity protection system provided by the present invention includes:

[0075] A threshold setting module, configured to set multiple alarm levels, where the alarm levels include ordinary alarm and serious alarm; set the first temperature judgment threshold and the second temperature judgment threshold of the first acquisition module, set the third temperature judgment threshold and the fourth temperature judgment threshold collected by the second acquisition module, the first temperature judgment threshold is less than the second temperature judgment threshold, the third temperature judgment threshold is less than the fourth temperature judgment threshold, and the fourth temperature judgment threshold is less than the second temperature judgment threshold;

[0076] A judgment module, configured to obtain the first temperature data of the transformer collected by the first collection module and the second temperature data of the transformer collected by the second collection module, and output an alarm signal or issue a control signal for a tripping operation according to the comparison results of the first temperature data and the second temperature data with the first temperature judgment threshold, the second temperature judgment threshold, the third temperature judgment threshold, and the fourth temperature judgment threshold;

[0077] A main control module, connected to the threshold setting module and the judgment module, for executing the tripping control method of the above non-electrical quantity protection system.

[0078] In a third aspect, the present invention further provides a tripping control device for a non-electrical quantity protection system, including a processing module, a first oil surface thermometer, a second oil surface thermometer, an alarm signal module, and a tripping control module. The first oil surface thermometer and the second oil surface thermometer are connected in parallel with the alarm signal module, and the first oil surface thermometer and the second oil surface thermometer are connected in series with the tripping control module;

[0079] The processing module is connected to the first oil surface thermometer and the second oil surface thermometer, and is used to execute the tripping control method of the above non-electrical quantity protection system.

[0080] Specifically, the first oil surface thermometer includes a first trigger module and a second trigger module, the second oil surface thermometer includes a third trigger module and a fourth trigger module, the first trigger module and the third trigger module are connected in parallel with the alarm signal module, and the second trigger module and the fourth trigger module are connected in series with the tripping control module.

[0081] In this embodiment, both the first trigger module and the third trigger module include a 31st contact, a 32nd contact, and a 34th contact, and both the second trigger module and the fourth trigger module include a 41st contact, a 42nd contact, and a 44th contact. Their specific connections are as Figure 2 shown. In the figure, when the oil temperature is high, it is transmitted to the alarm signal module, and when the oil temperature is too high, it is transmitted to the tripping control module.

[0082] The action setting value of the high-temperature node of the first oil surface thermometer and the second oil surface thermometer is 75°C, that is, the first temperature judgment threshold and the third temperature judgment threshold. When the temperature is greater than or equal to 75°C, the high-temperature nodes 31 and 34 of the first oil surface thermometer and the second oil surface thermometer change from normally open to normally closed.

[0083] The action setting value of the over-high temperature node of the first oil surface thermometer is 95°C, that is, the second temperature judgment threshold, and the action setting value of the over-high temperature node of the second oil surface thermometer is 85°C, that is, the fourth temperature judgment threshold.

[0084] When the temperature reaches 85°C but is lower than 95°C, the over-temperature nodes 41 and 44 of the first oil level thermometer do not actuate (remain normally open), and the over-temperature nodes 41 and 44 of the second oil level thermometer change from normally open to normally closed. At this time, the circuit from the over-temperature nodes of the first and second oil level thermometers to the non-electrical protection system is not conducting, and the non-electrical protection system does not trip due to excessive main transformer oil temperature.

[0085] When the temperature reaches 95°C or higher, the over-temperature nodes 41 and 44 of the first and second oil level thermometers change from normally open to normally closed, the circuit from the over-temperature nodes of the first and second oil level thermometers to the non-electrical protection system is conducting, and the non-electrical protection system trips due to excessive main transformer oil temperature.

[0086] In addition, in each embodiment of the present invention, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0087] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in the various embodiments of the present invention. The aforementioned storage medium includes: USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs and other various media that can store program codes.

[0088] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tripping control method for a non-electrical protection system, characterized in that: include: Set a first temperature judgment threshold and a second temperature judgment threshold of the first acquisition module, and set a third temperature judgment threshold and a fourth temperature judgment threshold collected by the second acquisition module, wherein the first temperature judgment threshold is less than the second temperature judgment threshold, the third temperature judgment threshold is less than the fourth temperature judgment threshold, and the fourth temperature judgment threshold is less than the second temperature judgment threshold; The first temperature data of the transformer collected by the first acquisition module and the second temperature data of the transformer collected by the second acquisition module are obtained, and an alarm signal is output or a control signal for a tripping action is issued according to the comparison results of the first temperature data and the second temperature data with the first temperature judgment threshold, the second temperature judgment threshold, the third temperature judgment threshold and the fourth temperature judgment threshold.

2. The tripping control method of a non-electrical protection system according to claim 1, characterized in that: The output alarm signal or the control signal for issuing a tripping action includes: If the first temperature data is less than the first temperature judgment threshold and the second temperature data is less than the second temperature judgment threshold, no alarm is issued; If the first temperature data is less than the first temperature judgment threshold and the second temperature data is less than the third temperature judgment threshold only occur separately, sending an alarm signal; If the first temperature data is not less than the first temperature judgment threshold, and the second temperature data is not less than the third temperature judgment threshold, and the first temperature data is less than the second temperature judgment threshold, an alarm signal is sent; If the first temperature data is not less than the second temperature judgment threshold, and the second temperature data is not less than the fourth temperature judgment threshold, a control signal for executing a tripping action is sent.

3. The tripping control method of a non-electrical protection system according to claim 2, characterized in that: Also includes: After receiving the control signal for executing the tripping action, the current data in the current main transformer is obtained, and if the current current data is determined to be zero, a feedback signal indicating successful tripping is sent; If it is not zero, it is determined whether the current current data is consistent with the current data before the tripping. If not, a feedback signal of the tripping fault is sent; If they are consistent, a feedback signal of trip failure is sent, and the current temperature of the transformer is obtained, and it is determined whether to send a secondary power-off control signal based on the current transformer temperature data. The impact range of the secondary power-off is greater than the impact range of the tripping action.

4. The tripping control method of a non-electrical protection system according to claim 3, characterized in that: The obtaining of the current transformer temperature comprises: Selecting a plurality of temperature acquisition points of the transformer, and acquiring a plurality of temperature values ​​through the plurality of temperature acquisition points; The target temperature value of the current transformer is calculated based on several temperature values, a judgment model is established, the current judgment value is calculated based on the target temperature value and the judgment model, and an execution threshold is set. According to the judgment value and the execution threshold, a control signal of whether to send a secondary power-off is output.

5. The tripping control method of a non-electrical protection system according to claim 4, characterized in that: The target temperature value of the current transformer is calculated based on a number of temperature values ​​and includes: Where, T s is the target temperature value, S i is the distance between the ith temperature acquisition point and the geometric center of the transformer, S z The total distance of all temperature acquisition points from the geometric center of the transformer, T i is the temperature value of the i-th temperature acquisition point, and m is the number of temperature acquisition points.

6. A trip control method for a non-electrical quantity protection system according to claim 5, characterized in that: The establishment of the judgment model comprises: Where, T a is the second temperature judgment threshold, P e is the power lost after the second power outage, P k is the power generation capacity of the hydropower station, Q l is the loss value per hour after the second power outage, Q t is the hourly power generation value of the hydropower station.

7. A trip control system for a non-electrical protection system, characterized in that: include: A threshold setting module is configured to set multiple alarm levels, wherein the alarm levels include ordinary alarm and severe alarm; Set a first temperature judgment threshold and a second temperature judgment threshold of the first acquisition module, and set a third temperature judgment threshold and a fourth temperature judgment threshold collected by the second acquisition module, wherein the first temperature judgment threshold is less than the second temperature judgment threshold, the third temperature judgment threshold is less than the fourth temperature judgment threshold, and the fourth temperature judgment threshold is less than the second temperature judgment threshold; A judgment module is configured to obtain the first temperature data of the transformer collected by the first acquisition module and the second temperature data of the transformer collected by the second acquisition module, and output an alarm signal or send a control signal for a tripping action according to the comparison results of the first temperature data and the second temperature data with the first temperature judgment threshold, the second temperature judgment threshold, the third temperature judgment threshold and the fourth temperature judgment threshold respectively; A main control module is connected to the threshold setting module and the judgment module, and is used to execute a tripping control method for a non-electrical protection system as described in any one of claims 1-6.

8. A trip control device for a non-electrical protection system, characterized in that: It includes a processing module, a first oil level thermometer, a second oil level thermometer, an alarm signal module and a trip control module, wherein the first oil level thermometer and the second oil level thermometer are connected in parallel with the alarm signal module, and the first oil level thermometer and the second oil level thermometer are connected in series with the trip control module; The processing module is connected to the first oil level thermometer and the second oil level thermometer, and is used to execute the tripping control method of a non-electrical protection system according to any one of claims 1 to 6.

9. A trip control device for a non-electrical quantity protection system according to claim 8, characterized in that: The first oil level thermometer includes a first trigger module and a second trigger module, the second oil level thermometer includes a third trigger module and a fourth trigger module, the first trigger module and the third trigger module are connected in parallel with the alarm signal module, and the second trigger module and the fourth trigger module are connected in series with the trip control module.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the tripping control method for a non-electrical protection system as described in any one of claims 1 to 6 is implemented.