Method and system for determining working state of transformer

Abstract

The invention discloses a method and system for determining the working state of a transformer, and relates to the field of power systems. The method comprises the steps that in response to the fact that a robot moves to an acquisition position, a first acquisition unit deployed in the robot is controlled to be connected with an oil taking valve pipeline of a transformer, and the distance between the acquisition position and the transformer meets a distance threshold value; in response to completion of connection between the first acquisition unit and the oil taking valve pipeline, opening and / or closing of a plurality of electromagnetic valves in the first acquisition unit are controlled respectively, so that transformer oil in the transformer is acquired; in response to the collected transformer oil, controlling a monitoring unit deployed in the robot to monitor the transformer oil to obtain a monitoring result; and determining the working state of the transformer based on the monitoring result. According to the invention, the technical problem of low monitoring efficiency of the transformer oil is solved.

Description

Technical Field

[0001] The present invention relates to the field of power systems, and in particular to a method and system for determining the working state of a transformer. Background Art

[0002] At present, during the normal operation of the transformer, it is necessary to conduct regular inspections and analyses on the dissolved gas in the transformer oil, trace water in the oil, breakdown voltage, dielectric loss, etc.

[0003] In the related art, the transformer oil in the transformer is usually monitored by manually collecting and monitoring the transformer oil. However, the above method has the technical problem of low efficiency in monitoring the transformer oil.

[0004] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiments of the present invention provide a method and system for determining the working state of a transformer, so as to at least solve the technical problem of low efficiency in monitoring transformer oil.

[0006] According to one aspect of an embodiment of the present invention, a method for determining a working state of a transformer is provided, and the method may include: in response to a robot moving to a collection position, controlling a first collection unit deployed in the robot to connect to an oil extraction valve pipeline of the transformer, wherein a distance between the collection position and the transformer satisfies a distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, respectively controlling opening and / or closing of a plurality of solenoid valves in the first collection unit to collect transformer oil in the transformer; in response to collecting the transformer oil, controlling a monitoring unit deployed in the robot to monitor the transformer oil to obtain a monitoring result; and determining the working state of the transformer based on the monitoring result.

[0007] Optionally, in response to the first acquisition unit being connected to the oil extraction valve pipeline, the opening and / or closing of multiple solenoid valves in the first acquisition unit are controlled respectively to collect transformer oil in the transformer, including: in response to the first acquisition unit being connected to the oil extraction valve pipeline, the first solenoid valve in the oil extraction valve pipeline and the oil inlet solenoid valve of the first acquisition unit are controlled to be opened to control the transformer oil to be transmitted to the temperature sensor of the first acquisition unit; temperature data obtained by the temperature sensor monitoring the transformer oil is obtained; the deviation between the temperature data and the standard temperature data is determined; based on the deviation, control data of the storage subunit and the collection subunit in the first acquisition unit is determined, wherein the control data is used to control the opening and closing of the solenoid valve in the storage subunit and the opening and closing of the solenoid valve in the collection subunit; according to the control data, the storage subunit and the collection subunit are controlled to complete the collection of transformer oil.

[0008] Optionally, based on the deviation, control data of the storage subunit and the collection subunit in the first acquisition unit are determined, including: in response to the deviation being less than or equal to a deviation threshold, determining that the control data is target control data, wherein the target control data is used to control the first solenoid valve and the oil inlet solenoid valve to close, and control the second solenoid valve in the storage subunit and the third solenoid valve in the collection subunit to open.

[0009] Optionally, according to the control data, the storage subunit and the collection subunit are controlled to complete the collection of transformer oil, including: according to the target control data, the storage subunit and the collection subunit are controlled to transfer the transformer oil in the storage subunit to the collection subunit; in response to the transformer oil in the storage subunit being transferred to the collection subunit, the first solenoid valve and the oil inlet solenoid valve are controlled to be opened, and the second solenoid valve and the third solenoid valve are controlled to be closed, so as to re-transfer the transformer oil in the transformer to the storage subunit; in response to the volume of the transformer oil in the storage subunit meeting the volume threshold, the first solenoid valve and the oil inlet solenoid valve are controlled to be closed, and the second solenoid valve and the third solenoid valve are controlled to be opened, so as to transfer the re-collected transformer oil to the collection subunit; in response to the re-collected transformer oil being transferred to the collection subunit, the first solenoid valve and the oil inlet solenoid valve are controlled to be opened, and the second solenoid valve and the third solenoid valve are controlled to be closed, so as to transfer the transformer oil in the transformer to the storage subunit again.

[0010] Optionally, the method may further include: in response to the volume of the transformer oil in the storage subunit meeting a volume threshold, controlling the first solenoid valve and the oil inlet solenoid valve to close, and controlling the oil extraction valve pipeline and the first collection unit to be disconnected.

[0011] Optionally, the monitoring unit includes at least a dielectric loss test subunit, a breakdown voltage test subunit and an oil micro-water test subunit, and controls the monitoring unit deployed in the robot to monitor the transformer oil to obtain monitoring results, including: respectively controlling the dielectric loss test subunit, the breakdown voltage test subunit and the oil micro-water test subunit to test the transformer oil to obtain monitoring results.

[0012] Optionally, determining the working state of the transformer based on the monitoring result includes: comparing the monitoring result with a standard monitoring result to obtain a comparison result; and determining the working state based on the comparison result.

[0013] Optionally, the method may also include: in response to a prompt message sent by the transformer, controlling the first collection unit to collect transformer oil in the transformer, and controlling the second collection unit to collect gas in the gas relay of the transformer; performing oil-gas separation processing on the transformer oil to obtain the gas to be monitored in the transformer oil; and monitoring the gas to be monitored and the gas.

[0014] Optionally, the method may further include: in response to a collection instruction, controlling the robot to move to a collection position of the transformer.

[0015] According to another aspect of an embodiment of the present invention, a system for determining the working state of a transformer is further provided, and the system may include: a first collection unit, for collecting transformer oil in the transformer; a monitoring unit, for monitoring the transformer oil and obtaining monitoring results; a central control system, for controlling a robot to move to a collection position, and controlling the first collection unit deployed in the robot to connect to the oil extraction valve pipeline of the transformer, wherein the distance between the collection position and the transformer satisfies a distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, respectively controlling the opening and / or closing of multiple solenoid valves in the first collection unit to collect transformer oil; in response to the transformer oil being collected, controlling the monitoring unit deployed in the robot to monitor the transformer oil; and determining the working state of the transformer based on the monitoring results.

[0016] Optionally, the system may further include: a second collection unit, configured to collect gas from a gas relay of the transformer.

[0017] According to another aspect of an embodiment of the present invention, a device for determining the working state of a transformer is also provided, and the device may include: a first control module, for controlling a first collection unit deployed in the robot to connect to the oil extraction valve pipeline of the transformer in response to the robot moving to the collection position, wherein the distance between the collection position and the transformer meets a distance threshold. A second control module, for controlling the opening and / or closing of multiple solenoid valves in the first collection unit in response to the first collection unit being connected to the oil extraction valve pipeline to collect transformer oil in the transformer. A monitoring module, for controlling a monitoring unit deployed in the robot to monitor the transformer oil in response to the transformer oil being collected to obtain a monitoring result. A determination module, for determining the working state of the transformer based on the monitoring result.

[0018] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is further provided, which includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute the method for determining the working state of the transformer of an embodiment of the present invention.

[0019] According to another aspect of an embodiment of the present invention, a processor is further provided. The processor is used to run a program, wherein when the program is run by the processor, the method for determining the working state of the transformer according to an embodiment of the present invention is executed.

[0020] According to another aspect of an embodiment of the present invention, a program product is further provided. The program product includes computer instructions. When the computer instructions are executed by a processor, the method for determining the working state of the transformer according to an embodiment of the present invention is implemented.

[0021] In an embodiment of the present invention, in response to the robot moving to the collection position, the first collection unit deployed in the robot is controlled to connect to the oil extraction valve pipeline of the transformer, wherein the distance between the collection position and the transformer meets the distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, the opening and / or closing of multiple solenoid valves in the first collection unit are respectively controlled to collect transformer oil in the transformer; in response to the transformer oil being collected, the monitoring unit deployed in the robot is controlled to monitor the transformer oil to obtain the monitoring result; based on the monitoring result, the working state of the transformer is determined. That is, in an embodiment of the present invention, the robot is used to collect transformer oil. When the robot moves to the collection position, the first collection unit in the robot can be controlled to collect transformer oil, and the monitoring unit can be controlled to monitor the collected transformer oil to obtain the monitoring result. Based on the monitoring result, the working state of the transformer can be determined. It should be clear that the above method can be controlled by a central controller without any manual processing, thereby achieving the technical effect of improving the efficiency of transformer oil monitoring and solving the technical problem of low efficiency of transformer oil monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 is a flow chart of a method for determining a working state of a transformer according to an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of a transformer oil collection unit according to an embodiment of the present invention;

[0025] Figure 3 is a schematic diagram of a monitoring unit according to an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of a gas collection unit according to an embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of a dissolved gas monitoring unit in oil according to an embodiment of the present invention;

[0028] Figure 6is a schematic diagram of a system for determining a working state of a transformer according to an embodiment of the present invention;

[0029] Figure 7 is a schematic diagram of an automatic collection and monitoring device according to an embodiment of the present invention;

[0030] Figure 8 is a schematic diagram of a device for determining a working state of a transformer according to an embodiment of the present invention;

[0031] Fig. 9 is a structural block diagram of a computer terminal according to an embodiment of the present invention;

[0032] Fig.10 It is a block diagram of an electronic device for determining a working state of a transformer according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] According to an embodiment of the present invention, an embodiment of a method for determining the working state of a transformer is provided. The steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0036] In this embodiment, a method for determining the working state of a transformer is proposed. The method can use a robot to collect transformer oil. When the robot moves to a collection position, the first collection unit in the robot can be controlled to collect the transformer oil, and the monitoring unit can be controlled to monitor the collected transformer oil to obtain a monitoring result. Based on the monitoring result, the working state of the transformer can be determined. It should be clear that the above method can be controlled by a central controller without any manual processing, thereby achieving the technical effect of improving the efficiency of monitoring the transformer oil and solving the technical problem of low efficiency in monitoring the transformer oil.

[0037] Figure 1 FIG. 1 is a flow chart of a method for determining the working state of a transformer according to an embodiment of the present invention. Figure 1 As shown, the method may include the following steps:

[0038] Step S102, in response to the robot moving to a collection position, controlling a first collection unit deployed in the robot to connect to an oil extraction valve pipeline of a transformer, wherein a distance between the collection position and the transformer meets a distance threshold.

[0039] In the technical solution provided in the above step S102 of the present invention, the above acquisition position can be a fixed position of the transformer to be sampled, and the distance between the acquisition position and the transformer meets the distance threshold, which can be 1 cm, 0.5 mm, etc. Therefore, the acquisition position can be a fixed position close to the transformer, and the above distance threshold and acquisition position can be pre-set. It should be noted that this is only an example, and the size of the distance threshold is not specifically limited. The above robot can be a mobile robot, which can at least include a first acquisition unit and a monitoring unit, for example, it can be a four-legged mechanical dog. The type of robot and the content included are not specifically limited here, and can be supplemented and deleted according to actual needs.

[0040] Optionally, the transformer oil can be a substance placed in a transformer oil tank, and can be a special mineral oil or synthetic oil, which can be used in power transformers and can play the role of insulation, cooling and arc extinguishing. The selection and maintenance of transformer oil are crucial to the operating safety and life of the transformer, so oil sampling can be monitored regularly to evaluate the quality of the oil and the health of the transformer.

[0041] Optionally, the central processing unit can control the movement of the robot, and in response to the robot moving to the collection position, it can control the first collection unit deployed in the robot to automatically connect to the oil extraction valve pipeline of the transformer. The first collection unit can be a transformer oil collection unit, which can be used to collect transformer oil. The first collection unit can at least include a transformer oil variable storage module, a waste transformer oil collection module, a plurality of solenoid valves and / or a variable volume storage container for loading transformer oil. It should be noted that there is no specific restriction on the objects contained in the first collection unit, and the objects in the first collection unit can be added or deleted according to actual needs.

[0042] For example, in order to accurately move to the position of the target transformer (i.e., the above-mentioned transformer) during collection, the collection and monitoring unit can be integrated and installed on a four-legged mechanical dog (i.e., the above-mentioned robot). The movement of the four-legged mechanical dog can also be controlled by the central system. The oil extraction valve pipeline of the transformer (which can be simply referred to as the oil extraction valve) is extended and modified to facilitate connection with the first collection unit. The modified oil and gas collection valve in the first collection unit can be a solenoid valve. The opening and closing of the valve is controlled by the central control system. The physical connection between the oil and gas collection valve and the first collection unit is achieved through mature pipeline automatic docking technology, thereby realizing automatic connection between the first collection unit and the oil extraction valve pipeline through the central control system without manual labor.

[0043] Step S104, in response to the first collection unit being connected to the oil extraction valve pipeline, the opening and / or closing of multiple solenoid valves in the first collection unit are controlled respectively to collect transformer oil in the transformer.

[0044] In the technical solution provided in the above step S104 of the present invention, in response to the first collection unit being successfully connected to the oil extraction valve pipeline, multiple solenoid valves in the first collection unit can be controlled separately. By controlling the opening and / or closing of the multiple solenoid valves, the first collection unit can be controlled to automatically collect transformer oil in the transformer.

[0045] Optionally, the first collection unit is modified, and the valve of the modified first collection unit can be a solenoid valve, the opening and closing of the valve can be controlled only by the central control system, and the physical connection between the first collection unit and the transformer can be achieved through mature automatic pipeline docking technology. In response to the successful connection between the first collection unit and the oil extraction valve pipeline, the opening and / or closing of multiple solenoid valves in the first collection unit can be further controlled by the central control system. By controlling the opening and / or closing of multiple solenoid valves, the purpose of automatically collecting transformer oil in the transformer without manual work can be achieved.

[0046] Step S106, in response to the transformer oil being collected, controlling the monitoring unit deployed in the robot to monitor the transformer oil to obtain a monitoring result.

[0047] In the technical solution provided in the above step S106 of the present invention, when the transformer oil is collected in the first collection unit, the monitoring unit deployed in the robot can be controlled by the central control system to monitor the transformer oil to obtain the monitoring result, wherein the above monitoring unit can be a transformer oil monitoring unit, which can be used to monitor the transformer oil. The above monitoring result can be used to determine the state of the transformer oil, for example, it can include the monitoring of indicators such as transformer oil micro-water, breakdown voltage, and dielectric loss.

[0048] Optionally, the first collection unit is controlled to collect transformer oil in the transformer, and in response to the collection of the transformer oil, a monitoring unit deployed in the robot can be controlled to monitor the transformer oil to obtain a monitoring result.

[0049] For example, under the instruction of the central control system, the first collection unit is connected to the oil extraction valve pipeline of the transformer to collect transformer oil samples (that is, the above-mentioned transformer oil). When the transformer oil enters the variable volume storage container and the oil volume reaches the target volume, the central control system determines that the oil sample collection is completed. After the oil sample collection is completed, the central control system can control the valve between the first collection unit and the transformer oil monitoring unit to open, so that the collected transformer oil flows from the variable volume storage container into the corresponding test pool and the sampling quantitative tube of the monitoring unit. Each module in the transformer oil monitoring unit (for example, a dielectric loss test module, a breakdown voltage test module, and a micro-water test module in oil) starts working under the instruction of the central control system to obtain monitoring results, such as the type and content of dissolved gas in the oil, the content of micro-water in the oil, the value of the breakdown voltage, and the value of the dielectric loss. The above process of obtaining the monitoring results is only for illustration and is not specifically limited here.

[0050] Step S108: determining the working state of the transformer based on the monitoring result.

[0051] In the technical solution provided in the above step S108 of the present invention, since transformer oil not only serves as an insulating medium but also plays a role in cooling and arc extinguishing, during operation, the electrical and mechanical stress inside the transformer may cause dissolved gases to be generated in the oil, such as hydrogen (H2), methane (CH4), acetylene (C2H2), etc. The generation of these gases is related to various faults inside the transformer, such as overheating, partial discharge or arc fault. Therefore, the monitoring results obtained by monitoring the transformer oil can be used to monitor the health status of the transformer and predict potential faults.

[0052] Optionally, after the monitoring result of the transformer oil is obtained, the working state of the transformer may be determined based on the monitoring result.

[0053] Optionally, indicators such as dissolved gas, trace water, breakdown voltage and dielectric loss in transformer oil can be monitored. The monitoring results can help power engineers to detect early faults or potential problems of transformers in a timely manner, so as to take necessary maintenance measures to avoid more serious faults and ensure the stability and safety of the power system. In addition, the monitoring results can also be used to evaluate the service life of transformers and predict maintenance needs.

[0054] Through the above steps S102 and S108 of the present invention, in response to the robot moving to the collection position, the first collection unit deployed in the robot is controlled to connect to the oil extraction valve pipeline of the transformer, wherein the distance between the collection position and the transformer meets the distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, the opening and / or closing of multiple solenoid valves in the first collection unit are respectively controlled to collect transformer oil in the transformer; in response to the transformer oil being collected, the monitoring unit deployed in the robot is controlled to monitor the transformer oil to obtain the monitoring result; based on the monitoring result, the working state of the transformer is determined. That is, in the embodiment of the present invention, the robot is used to collect transformer oil. When the robot moves to the collection position, the first collection unit in the robot can be controlled to collect transformer oil, and the monitoring unit can be controlled to monitor the collected transformer oil to obtain the monitoring result. Based on the monitoring result, the working state of the transformer can be determined. It should be clear that the above method can be controlled by a central controller without any manual processing, thereby achieving the technical effect of improving the efficiency of transformer oil monitoring and solving the technical problem of low efficiency of transformer oil monitoring.

[0055] The above method of this embodiment is further introduced below.

[0056] As an optional implementation, step S104, in response to the first acquisition unit being connected to the oil extraction valve pipeline, respectively controlling the opening and / or closing of multiple solenoid valves in the first acquisition unit to collect transformer oil in the transformer, includes: in response to the first acquisition unit being connected to the oil extraction valve pipeline, controlling the first solenoid valve in the oil extraction valve pipeline and the oil inlet solenoid valve of the first acquisition unit to open, so as to control the transformer oil to be transmitted to the temperature sensor of the first acquisition unit; acquiring temperature data obtained by the temperature sensor for monitoring the transformer oil; determining the deviation between the temperature data and the standard temperature data; based on the deviation, determining control data of the storage subunit and the collection subunit in the first acquisition unit, wherein the control data is used to control the opening and closing of the solenoid valve in the storage subunit and the opening and closing of the solenoid valve in the collection subunit; according to the control data, controlling the storage subunit and the collection subunit to complete the collection of transformer oil.

[0057] In this embodiment, in response to the first acquisition unit being connected to the oil extraction valve pipeline, the first solenoid valve in the oil extraction valve pipeline and the oil inlet solenoid valve of the first acquisition unit can be controlled to open, so as to control the transformer oil to be transmitted to the temperature sensor of the first acquisition unit; the temperature data obtained by the temperature sensor monitoring the transformer oil is obtained; the deviation between the temperature data and the standard temperature data is determined; based on the deviation, the control data of the storage subunit and the collection subunit in the first acquisition unit is determined, wherein the control data is used to control the opening and closing of the solenoid valve in the storage subunit and the opening and closing of the solenoid valve in the collection subunit; according to the control data, the storage subunit and the collection subunit are controlled to complete the collection of the transformer oil.

[0058] Optionally, after the central control system formulates the transformer oil collection task, the equipment operation and maintenance personnel transport the four-legged mechanical dog to the target substation by vehicle after receiving the task. The central control system can control the four-legged mechanical dog to move to a fixed position of the transformer where oil samples are to be taken (i.e., the collection position), and the transformer oil collection unit (i.e., the first collection unit) can start collecting transformer oil.

[0059] Further, the first collection unit can collect transformer oil through the following steps: the central control system controls the oil inlet pipeline of the collection unit to be connected with the oil extraction valve pipeline of the transformer through the automatic pipeline docking technology to complete the physical connection of the oil extraction valve pipeline. In response to the completion of the connection between the first collection unit and the oil extraction valve pipeline, the central control system can control the first solenoid valve (that is, the oil extraction valve) in the oil extraction valve pipeline of the transformer to open, and control the oil inlet solenoid valve (for example, solenoid valves 1 and 2) of the first collection unit to open, at this time, the transformer oil enters the variable volume storage container of the transformer oil, and the oil pressure automatically pushes the piston on the right side of the container. In this embodiment, in order to ensure that the collected transformer oil is representative, the dead volume oil sample in the pipeline between the transformer body and the oil extraction valve can be excluded first. Optionally, the method for judging the dead volume oil sample is: a temperature sensor is deployed in the oil inlet pipeline of the first collection unit, for example, it can be an oil temperature measurement sensor, and the type of the temperature sensor is not specifically limited here, and the temperature t1 of the collected transformer oil is monitored in real time to obtain temperature data, which can be used to characterize the temperature of the collected transformer oil. At the same time, the central control system can obtain the standard temperature data t2 of the transformer from the management system of the power grid. Determine the deviation between the temperature data and the standard temperature data, and determine whether the dead volume oil sample in the pipeline is excluded based on the deviation between the two. According to the exclusion of the dead volume oil sample in the pipeline, determine the control data of the storage subunit and the collection subunit in the first collection unit to control whether to continue to collect transformer oil.

[0060] As an optional implementation, based on the deviation, the control data of the storage subunit and the collection subunit in the first acquisition unit are determined, including: in response to the deviation being less than or equal to the deviation threshold, determining that the control data is target control data, wherein the target control data is used to control the first solenoid valve and the oil inlet solenoid valve to close, and control the second solenoid valve in the storage subunit and the third solenoid valve in the collection subunit to open.

[0061] In this embodiment, if the deviation is less than or equal to the deviation threshold, it can be determined that the residual transformer oil (that is, the dead volume oil sample) in the oil extraction valve pipeline has been eliminated, and the transformer oil entering the container is the main body oil sample of the transformer at this time, so the control data can be determined to be the target control data. The target control data can be used to control the first solenoid valve and the oil inlet solenoid valve to close, and control the second solenoid valve in the storage subunit and the third solenoid valve in the collection subunit to open.

[0062] Optionally, Figure 2 is a schematic diagram of a transformer oil collection unit according to an embodiment of the present invention, such as Figure 2As shown, the transformer oil collection unit (i.e., the first collection unit) may include a transformer oil variable storage module 201 and a waste transformer oil collection module 202. The air inlet valve of the waste transformer oil collection module 202 is to achieve pressure balance when the waste oil enters the waste transformer oil collection module. The temperature sensor 203 may be used to measure the oil temperature of the transformer oil in the transformer 204 entering the transformer oil collection unit. The transformer oil monitoring oil outlet valve may be used to control the transformer oil to enter the monitoring unit 205 after the collection is completed. The waste oil outlet valve may be used for waste oil transfer, i.e., the waste oil may be transferred to the waste oil barrel 206 through the waste oil outlet valve. The transformer oil storage module in the first collection unit may be a container with a constant pressure (e.g., 1 atmosphere) and a variable volume.

[0063] Optionally, all solenoid valves in the first acquisition unit are initially closed, the push rod and piston of the transformer oil storage module are on the far left, and there is no oil or gas remaining inside. Figure 2 As shown, in response to the first acquisition unit being connected to the oil extraction valve pipeline, the first solenoid valve (transformer oil extraction valve 21) and the oil inlet solenoid valve (solenoid valve 22) of the first acquisition unit can be controlled to open, and the transformer oil enters the variable volume storage container of the transformer oil, and the oil pressure automatically pushes the piston on the left side of the container to move to the right. Further, in order to ensure that the collected transformer oil is representative, it is necessary to exclude the dead volume oil sample in the pipeline between the transformer body and the oil extraction valve. Therefore, a temperature sensor 203 can be deployed in the oil inlet pipeline of the acquisition unit, such as an oil temperature measurement sensor. Through the temperature sensor, the temperature data of the transformer oil (that is, t1) can be measured in real time, and the central control system obtains the standard temperature data of the transformer from the management system of the power grid. When the deviation between t1 and t2 is less than or equal to the deviation threshold (for example, 0.5 degrees Celsius), it can be considered that the dead volume oil sample in the pipeline has been excluded, and the transformer oil entering the container is the transformer body oil sample. At this time, the storage subunit and the collection subunit in the first monitoring unit can be controlled according to the target control data to achieve the purpose of collecting the transformer oil.

[0064] Optionally, the storage subunit may be a transformer oil variable storage module, which may be used to store transformer oil. The collection subunit may be a waste transformer oil collection module, which may be used to collect waste transformer oil. It should be noted that the name of the module may be selected according to actual conditions, and no specific limitation is made here.

[0065] Optionally, the target control data can be used to control the transformer oil extraction valve 21 and the solenoid valve 22 to close, and control the second solenoid valve in the storage subunit and the third solenoid valve in the collection subunit to open. The second solenoid valve can be a waste oil collection inlet valve (for example, Figure 2The third solenoid valve may be an air intake valve (for example, Figure 2 valve 24 in the housing).

[0066] Optionally, by controlling the transformer oil extraction valve 21 and the solenoid valve 22 to be closed, and controlling the valve 23 and the valve 24 to be opened, and the piston to be compressed to the left, all the transformer oil in the container can be transferred to the waste oil storage container to complete the first cleaning of the oil extraction container and the pipeline.

[0067] As an optional implementation, the storage subunit and the collection subunit are controlled according to the control data to complete the collection of transformer oil, including: controlling the storage subunit and the collection subunit according to the target control data to transfer the transformer oil in the storage subunit to the collection subunit; in response to the transformer oil in the storage subunit being transferred to the collection subunit, controlling the first solenoid valve and the oil inlet solenoid valve to be opened, and controlling the second solenoid valve and the third solenoid valve to be closed, so as to re-transfer the transformer oil in the transformer to the storage subunit; in response to the volume of the transformer oil in the storage subunit meeting the volume threshold, controlling the first solenoid valve and the oil inlet solenoid valve to be closed, and controlling the second solenoid valve and the third solenoid valve to be opened, so as to transfer the re-collected transformer oil to the collection subunit; in response to the re-collected transformer oil being transferred to the collection subunit, controlling the first solenoid valve and the oil inlet solenoid valve to be opened, and controlling the second solenoid valve and the third solenoid valve to be closed, so as to re-transfer the transformer oil in the transformer to the storage subunit.

[0068] In this embodiment, the storage subunit and the collection subunit are controlled according to the target control data to transfer the transformer oil stored in the storage subunit to the collection subunit. In response to transferring the transformer oil in the storage subunit to the collection subunit, the first solenoid valve and the oil inlet solenoid valve can be controlled to open again, and the second solenoid valve and the third solenoid valve can be controlled to close to transfer the transformer oil in the transformer to the storage subunit again. At this time, the transformer oil enters the storage subunit (that is, the variable volume storage container) for the second time. In response to the volume of the transformer oil in the storage subunit meeting the volume threshold, the first solenoid valve and the oil inlet solenoid valve can be controlled to close, and the second solenoid valve and the third solenoid valve can be controlled to open to transfer the transformer oil recollected in the storage subunit to the collection subunit. In response to the recollected transformer oil being transferred to the collection subunit, the first solenoid valve and the oil inlet solenoid valve are controlled to open, and the second solenoid valve and the third solenoid valve are controlled to close to transfer the transformer oil in the transformer to the storage subunit again.

[0069] Optionally, control valves 21 and 22 are opened, valves 23 and 24 are closed, and transformer oil enters the variable volume storage container for the second time. When the amount of transformer oil in the variable volume storage container reaches the target volume (i.e., the volume threshold), control valves 21 and 22 are closed, valves 23 and 24 are opened, and the control piston is compressed to the left, and the transformer oil in the container is transferred to the waste oil storage container for the second time, completing the second cleaning of the oil collection container and pipeline. In response to the re-collected transformer oil being transmitted to the collection subunit, valves 21 and 22 can be controlled to be opened again, valves 23 and 24 can be closed, and transformer oil enters the variable volume storage container for the third time. After the amount of oil reaches the target volume, control valves 21 and 22 are closed, and the sampling of transformer oil is completed.

[0070] As an optional implementation, in response to the re-collected transformer oil being transmitted to the collection subunit, the first solenoid valve and the oil inlet solenoid valve are controlled to be opened, and the second solenoid valve and the third solenoid valve are controlled to be closed, so as to transfer the transformer oil in the transformer to the storage subunit again. The method may also include: in response to the volume of the transformer oil in the storage subunit satisfying the volume threshold, the first solenoid valve and the oil inlet solenoid valve are controlled to be closed, and the oil extraction valve pipeline and the first collection unit are controlled to be disconnected.

[0071] In this embodiment, in response to the volume of the transformer oil in the storage subunit meeting the volume threshold, the first solenoid valve and the oil inlet solenoid valve can be controlled to close to control the oil extraction valve pipeline and the first collection unit to be disconnected, thereby stopping the collection of transformer oil.

[0072] Optionally, when the transformer oil enters the variable volume storage container for the third time, in the storage submodule, after the transformer oil volume reaches the target volume, valves 21 and 22 can be controlled to close to complete the transformer oil sampling. The central control system can control the oil inlet pipeline of the first collection unit to separate from the oil extraction valve pipeline of the transformer to release the physical connection of the oil circuit.

[0073] As an optional implementation, the monitoring unit includes at least a dielectric loss test subunit, a breakdown voltage test subunit and an oil micro-water test subunit. Step S106 controls the monitoring unit deployed in the robot to monitor the transformer oil and obtains monitoring results, including: respectively controlling the dielectric loss test subunit, the breakdown voltage test subunit and the oil micro-water test subunit to test the transformer oil and obtain monitoring results.

[0074] In this implementation, after the transformer oil is obtained, the monitoring unit deployed in the robot can be controlled to monitor the transformer oil to obtain the monitoring results. The monitoring of the transformer oil can include the following parts: respectively controlling the dielectric loss test subunit, the breakdown voltage test subunit and the oil micro-water test subunit to test the transformer oil to obtain the monitoring results. It should be noted that the above monitoring content is only for example, and the monitoring unit can be supplemented according to actual needs, and no specific restrictions are made here.

[0075] Optionally, the above-mentioned monitoring unit can also be called a transformer oil monitoring unit, which can include a dielectric loss test module (i.e., a dielectric loss test sub-unit), a breakdown voltage test module (i.e., a breakdown voltage test sub-unit), and an oil micro-water test module (i.e., an oil micro-water test sub-unit). The dielectric loss and breakdown voltage are tested in the corresponding electrolytic cell, and the transformer oil micro-water needs to be tested by injecting a quantitative oil sample into the electrolytic cell through a quantitative tube.

[0076] Figure 3 is a schematic diagram of a monitoring unit according to an embodiment of the present invention, such as Figure 3 As shown, the first collection unit 301 collects transformer oil. When collecting transformer oil, the monitoring unit 302 has completed the preparation before monitoring, and all valves in the monitoring unit 302 are in a closed state before monitoring. Among them, the above-mentioned monitoring unit 302 can include a dielectric loss test module 303, a breakdown voltage test module 304, and a micro-water test module 305. The above-mentioned dielectric loss test module 303 and the breakdown voltage test module 304 can monitor the transformer oil in the corresponding test pool respectively.

[0077] Optionally, the central control system can control the monitoring oil outlet valve 38 of the first acquisition unit and the valves 31, 32, and 33 of the monitoring unit to open, and the transformer oil enters the two test pools and the sampling quantitative tube respectively, and then closes the valves 31, 32, and 33, opens the valves 34, 35, and 36, and the transformer oil flows out into the waste oil barrel 306. After the first cleaning of the test pool and the sampling quantitative tube is completed, the valves 34, 35, and 36 are closed, and the above steps are repeated to complete the second cleaning. Open valves 31, 32, and 33. When the oil volume of the transformer oil in the test pool and the sampling quantitative tube meets the test requirements, close valves 31, 32, and 33, and the two test pools of the dielectric loss test module and the breakdown voltage test module start the dielectric loss test and the breakdown voltage test respectively. At the same time, open valve 37, inject 1 ml of oil sample into the electrolytic cell, and then perform the oil micro-water test. After the three module tests are completed, the monitoring results are wirelessly transmitted to the diagnostic storage unit. It should be noted that the above numbers are only for illustration and may be changed according to actual conditions and are not specifically limited here.

[0078] Optionally, the valve 31 can be an oil inlet valve for a dielectric loss test cell; the valve 32 can be an oil inlet valve for an oil breakdown voltage test cell; the valve 33 can be an oil inlet valve for a trace water test sampling quantitative tube; the valve 34 can be an oil drain valve for a dielectric loss test cell; the valve 35 can be an oil drain valve for an oil breakdown voltage test cell; the valve 36 can be an oil drain valve for a trace water test sampling quantitative tube; the valve 37 can be an electrolytic cell sampling valve, and the valve 38 can be a transformer oil monitoring oil outlet valve.

[0079] As an optional implementation, step S108, determining the working state of the transformer based on the monitoring result, includes: comparing the monitoring result with the standard monitoring result to obtain a comparison result; and determining the working state based on the comparison result.

[0080] In this embodiment, the above monitoring results may include monitoring results corresponding to indicators such as dissolved gas, trace water, breakdown voltage and dielectric loss. Standard monitoring results can be set in advance, and the monitoring results can be compared with the standard monitoring results to obtain a comparison result. The comparison result can be used to determine the relationship between the monitoring results and the standard monitoring results, so as to determine the working state. For example, if the comparison result is used to characterize that the monitoring result is similar to the standard monitoring result, it can be determined that the working state is a normal working state. If the comparison result is used to characterize that the monitoring result is far different from the standard monitoring result, it can be determined that the working state is an abnormal working state. It should be noted that the above judgment method is only for example and is not specifically limited here.

[0081] Optionally, the above standard monitoring results can be determined based on the operating status and historical data of the transformer. Further, after obtaining the monitoring results, the monitoring results can be sent to the diagnosis and storage unit by wireless transmission. The diagnosis and storage unit performs a comprehensive analysis based on the received monitoring results, combined with the operating status and historical data of the transformer, to obtain a comparison result. Based on the comparison result, the health status (i.e., working status) of the transformer can be judged, and these data and results can be stored to provide a basis for subsequent equipment maintenance and fault analysis.

[0082] As an optional implementation, the method may also include: in response to a prompt message sent by the transformer, controlling the first acquisition unit to collect transformer oil in the transformer, and controlling the second acquisition unit to collect gas in the gas relay of the transformer; performing oil-gas separation processing on the transformer oil to obtain the gas to be monitored in the transformer oil; and monitoring the gas to be monitored and the gas.

[0083] In this embodiment, if the transformer issues a prompt message, the first acquisition unit can be controlled to collect transformer oil in the transformer, and the second acquisition unit can be controlled to collect gas in the gas relay of the transformer, and the transformer oil can be subjected to oil-gas separation treatment to obtain the gas to be monitored in the transformer oil, and the gas to be monitored and the gas to be monitored can be monitored. Among them, the above-mentioned prompt message can be voice, text and other prompt messages, which can be used to prompt that the transformer is abnormal. For example, when the transformer has an unexpected situation such as a light gas alarm, the transformer can issue a prompt message. It should be noted that this is only an example, and there is no specific restriction on the reason for issuing the prompt message.

[0084] Optionally, after a light gas alarm occurs in the transformer, in order to determine the internal state of the transformer, in addition to analyzing the transformer oil, the gas relay needs to be checked. Therefore, while controlling the first acquisition unit to collect the transformer oil, the second acquisition unit can be controlled to collect the gas in the gas relay. Further, the gas can be monitored by chromatography to measure the content of each component gas in the gas and transformer oil, and then the state of the transformer can be comprehensively analyzed and judged by the equilibrium criterion method.

[0085] In this embodiment, the second collection unit may be a gas collection unit, which may include a waste oil and gas collection module and a gas storage module, and both modules may be of a volumetric type. The piston and push rod of the waste oil and gas collection module may move freely with the volume change in the container, and the maximum volume is 1.25 liters (L). After reaching 1.25L, the piston and push rod cannot move. During the container cleaning and gas extraction process of the gas storage module, the piston and push rod on the right side may control the volume to 50 ml and cannot move. The air intake valve may be used to control the air to fill the gas storage module, and then a vacuum pump may be used to evacuate the gas storage module to achieve the cleaning of the gas storage module. When the gas extraction is completed and needs to be monitored, the piston and push rod on the right side are contacted and locked to become movable, and the gas monitoring outlet valve is opened to push the gas to the gas monitoring unit through the piston and push rod.

[0086] Optionally, after the central control system formulates the gas collection task, it can control the four-legged mechanical dog to move to the fixed position of the gas relay gas extraction valve, and the gas collection unit starts to collect gas. Furthermore, the central control system can control the air intake pipeline of the collection unit to be connected with the gas collection box gas extraction valve pipeline of the gas relay through the automatic pipeline docking technology, and the oil inlet valve to be connected with the oil discharge valve of the gas collection box to complete the physical connection of the two pipelines. The measurement range and working range of the gas volume can be set to 0 to 999 ml, and the gas volume setting range of the light gas alarm can be set to 250 ml to 300 ml. Therefore, the volume range of the accumulated gas in the light gas alarm gas relay can be 250 ml to 999 ml. During the test, only 1 ml of gas needs to be sampled, so the gas extraction volume is set to 50 ml to meet the sampling and test requirements. Through the gas volume range in the gas relay and the set gas extraction volume, the switch of each valve can be programmed to complete the gas collection.

[0087] Figure 4 is a schematic diagram of a gas collection unit according to an embodiment of the present invention, such as Figure 4 As shown, all valves in the second collection unit are initially closed, wherein the push rod and piston of the waste oil and gas collection module 402 are at the far right, and no gas remains inside.

[0088] Optionally, through the central control system, the gas collecting box oil drain valve 41 in the gas relay 406 and the waste oil inlet valve 43 in the waste oil and gas collecting module 402 can be controlled to open. At this time, the transformer oil enters the waste oil and gas collecting module 402 from the lower part of the gas collecting box 401 to push the piston and push rod in the waste oil and gas collecting module 402 to move to the left. At the same time, the electronic flow meter (FE) performs flow calculation, and controls 250 ml of transformer oil in the gas collecting box 401 to enter the waste oil and gas collecting module 402. After that, the gas collecting box oil drain valve 41 and the waste oil inlet valve 43 are closed. Under the oil pressure of the transformer oil pillow 403, 250 ml of gas gas gathered in the gas relay 406 can be flushed into the gas collecting box 401, and the remaining gas volume on the gas relay 406 ranges from 0 to 749 ml. After opening the air intake valve 47 and reaching a balance with the atmosphere for 10 seconds, the air intake valve 47 is closed, the vacuum valve 48 and the vacuum pump 404 are opened for vacuuming, and after 1 minute, the air intake valve 47 and the vacuum pump 404 are closed to complete the first cleaning of the gas storage module 405, and the air intake valve 47 is opened again to reach a balance with the atmosphere for 10 seconds, the air intake valve 47 is closed, the vacuum valve 48 and the vacuum pump 404 are opened for vacuuming, and after 1 minute, the vacuum valve 48 and the vacuum pump 404 are closed to complete the second cleaning. Further, the gas collection box gas extraction valve 42 and the gas collection intake valve 46 can be opened, and the gas enters the gas storage module 405 from the gas collection box 401. After reaching gas balance, the collection of 50 ml of gas has been completed, and the gas collection intake valve 46 is closed.

[0089] Optionally, the methane gas in the methane gas storage module can be transmitted to the monitoring unit through the methane gas monitoring outlet valve 49 .

[0090] Optionally, at this time, there are 200 ml of gas remaining in the gas collecting box 401, and the remaining gas volume on the gas relay 406 ranges from 0 to 749 ml. The waste oil and gas inlet valve 45 is opened, and the remaining gas in the gas collecting box 401 and the gas relay 406 enters the waste oil and gas collection module 402. If the gas is less, the transformer enters the waste oil and gas collection module 402. When the piston and push rod of the waste oil and gas collection module 402 reach the leftmost side, that is, the maximum volume of 1.25 liters, all the gas in the gas relay has entered the waste oil and gas collection module 402, and the gas collecting box gas valve 42 and the waste oil and gas transfer valve 44 are closed, thereby completing the collection of the gas.

[0091] Optionally, if the gas collection is completed, the central control system can control the air intake pipeline of the second collection unit to be separated from the gas valve pipeline of the gas relay gas collection box, and the oil intake valve to be separated from the oil discharge valve of the gas collection box, so as to release the physical connection between the two pipelines. Furthermore, the second collection unit can transmit the collected gas to the monitoring unit corresponding to the gas to monitor the collected gas.

[0092] The following is a further example of the monitoring unit corresponding to gas (ie, the dissolved gas monitoring unit in oil). It should be noted that the following units / modules are only examples, and no specific restrictions are imposed on the contents of the units / modules. Figure 5 is a schematic diagram of a dissolved gas monitoring unit in oil according to an embodiment of the present invention, such as Figure 5 As shown, the oil-dissolved gas monitoring unit may include an oil-gas separation module 501, a gas chromatograph 502, and a test gas supply module 503. Figure 5 As shown, the transformer oil collection unit 504 transmits the collected transformer oil to the oil-gas separation device 501, and the oil-gas separation device 501 processes the collected transformer oil. The gas chromatograph 502 and the test gas supply module 503 can process the collected gas and the gas to be monitored.

[0093] Optionally, the oil-gas separation module 501 may adopt the principle of vacuum degassing, and the gas chromatograph 502 may be equipped with an injection quantitative loop, a thermal conductivity detector (TCD) and a hydrogen flame detector (FID), so as to improve the monitoring accuracy.

[0094] Optionally, when monitoring the gas dissolved in transformer oil (i.e., the gas to be monitored), the transformer oil collected by the transformer oil collection unit 504 can be separated from the oil and gas to obtain the gas to be monitored. The gas removed by the vacuum degassing device can be monitored, but in gas monitoring, no processing is required and it can be directly sampled and monitored. When collecting transformer oil and gas, the dissolved gas monitoring unit in oil has completed the preparations before monitoring. At the same time, Figure 5 , all valves in the dissolved gas monitoring unit in oil are in closed state before monitoring.

[0095] Optionally, when monitoring gas composition, the central control system can control the gas detection outlet valve 56 of the gas collection unit 505 and the gas chromatograph inlet valve 53 to open, and the gas enters the gas chromatograph 502 for monitoring. When monitoring dissolved gas in transformer oil, the central control system can control the transformer oil monitoring outlet valve 55 of the transformer oil collection unit 504 and the oil and gas separation inlet valve 51 of the oil and gas separation module 501 to open, so that the transformer oil enters the oil and gas separation module 501. Further, the transformer oil monitoring outlet valve 55 and the oil and gas separation inlet valve 51 can be closed, the oil and gas separation waste oil discharge valve 54 can be opened, and the transformer oil flows into the waste oil barrel 506. After the first cleaning of the oil and gas separation module is completed, the oil and gas separation waste oil discharge valve 54 is closed, and the above steps are repeated to complete the second cleaning of the oil and gas separation module. After the cleaning is completed, the transformer oil monitoring oil outlet valve 55 and the oil-gas separation oil inlet valve 51 can be opened, and the transformer oil enters the oil-gas separation module 501. When the amount of transformer oil is sufficient for monitoring, the transformer oil monitoring oil outlet valve 55 and the oil-gas separation oil inlet valve 51 are closed, and the oil-gas separation module 501 starts vacuum degassing. After the oil-gas separation is completed, the oil-gas separation monitoring gas outlet valve 52 and the gas chromatograph inlet valve 53 are opened. Through the above steps, the gas to be monitored can be separated from the transformer oil. The gas to be monitored and the gas can be transmitted to the gas chromatograph 502 for monitoring. After the monitoring is completed, the unit can wirelessly transmit the monitoring results to the diagnostic storage unit.

[0096] It should be noted that the above parameter sizes, number and type of modules are only for illustration purposes. The parameter sizes and module types can be selected according to actual conditions and are not specifically limited here.

[0097] As an optional implementation, the method may further include: in response to a collection instruction, controlling the robot to move to a collection position of the transformer.

[0098] In this embodiment, the robot can be controlled to move to the collection position of the transformer in response to the collection instruction. The collection instruction can be used to trigger the oil and gas collection and monitoring task, which can be triggered at a fixed time, or can be triggered according to preset conditions, or can be triggered by a central control system.

[0099] Optionally, the sources of oil and gas collection and monitoring tasks may include: transformer oil periodic preventive test tasks formulated according to test procedures, transformer oil periodic tracking tasks formulated according to test results or special maintenance needs, and transformer oil and gas temporary inspection tasks that need to be formulated after unexpected situations such as light gas alarms in the main transformer. According to the above conditions, the collection command can be triggered to control the robot to automatically collect transformer oil.

[0100] For example, the central control system can establish a periodic collection and monitoring account of transformer oil according to the information of the transformer and the requirements of the test procedures. The account is automatically updated. After each collection and monitoring task is completed, the central control system can automatically record the completion time, and automatically generate the transformer oil collection and monitoring task for the next cycle according to the cycle. The formulation of this task is automatically completed by the central control system. When the test results are abnormal or the main transformer is overloaded, in order to ensure the safe operation of the equipment, a tracking test of transformer oil is required. This tracking test is generally periodic. The formulation of this task can be given by the equipment operation and maintenance personnel to the central control system. A tracking instruction, the central system periodically generates tracking tasks according to the instruction. In response to the current moment being the trigger time of the tracking task, the central control system can trigger the collection instruction, and in response to the collection instruction, the central control system can issue a control instruction, through which the robot is controlled to move to the collection position of the transformer.

[0101] It should be noted that the above two tasks only involve transformer oil collection and monitoring tasks, and do not involve gas. Only when an unexpected situation such as a light gas alarm occurs in the transformer, the equipment operation and maintenance personnel can manually give the central control system a temporary inspection instruction to generate a temporary transformer oil and gas collection and monitoring task, so that the central control system can control the first collection unit to collect transformer oil and control the first collection unit to collect gas.

[0102] In an embodiment of the present invention, a robot is used to collect transformer oil. When the robot moves to a collection position, the first collection unit in the robot can be controlled to collect the transformer oil, and the monitoring unit can be controlled to monitor the collected transformer oil to obtain a monitoring result. Based on the monitoring result, the working state of the transformer can be determined. It should be clear that the above method can be controlled by a central controller without any manual processing, thereby achieving the technical effect of improving the efficiency of monitoring the transformer oil and solving the technical problem of low efficiency in monitoring the transformer oil.

[0103] According to an embodiment of the present invention, a system for determining the working state of a transformer is also provided. It should be noted that the system for determining the working state of a transformer in this embodiment can be used to execute the method for determining the working state of a transformer in the above embodiment of the present invention.

[0104] Figure 6 is a schematic diagram of a system for determining the working state of a transformer according to an embodiment of the present invention. Figure 6 As shown, the system 60 for determining the working state of the transformer may include: a first acquisition unit 602 , a monitoring unit 604 and a central control system 606 .

[0105] The first collection unit 602 is used to collect transformer oil in the transformer.

[0106] Optionally, the first collection unit may be a transformer oil collection unit, which may be used to collect transformer oil.

[0107] The monitoring unit 604 is used to monitor the transformer oil and obtain monitoring results.

[0108] Optionally, the monitoring unit may be a dissolved gas in oil monitoring unit and / or a transformer oil monitoring unit, which may be used to monitor transformer oil to obtain monitoring results.

[0109] The central control system 606 is used to control the robot to move to the collection position, control the first collection unit deployed in the robot to connect to the oil extraction valve pipeline of the transformer, wherein the distance between the collection position and the transformer meets the distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, respectively control the opening and / or closing of multiple solenoid valves in the first collection unit to collect transformer oil; in response to the transformer oil being collected, control the monitoring unit deployed in the robot to monitor the transformer oil; and determine the working state of the transformer based on the monitoring result.

[0110] Optionally, the system may further include a second collection unit, which may be a gas collection unit, and may be used to collect gas in a gas relay of the transformer.

[0111] Optionally, the above system may further include a diagnosis and storage unit for obtaining monitoring results, and may judge the monitoring results to determine the working state of the transformer, and transmit the working state to the central control system to determine the working state of the transformer.

[0112] In this embodiment, transformer oil in the transformer is collected by a first collection unit; the transformer oil is monitored by a monitoring unit to obtain a monitoring result; the robot is controlled to move to a collection position by a central control system, and the first collection unit deployed in the robot is controlled to connect to the oil extraction valve pipeline of the transformer, wherein the distance between the collection position and the transformer meets a distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, the opening and / or closing of multiple solenoid valves in the first collection unit are controlled respectively to collect transformer oil; in response to the transformer oil being collected, the monitoring unit deployed in the robot is controlled to monitor the transformer oil; based on the monitoring result, the working state of the transformer is determined, thereby achieving the technical effect of improving the efficiency of monitoring the transformer oil and solving the technical problem of low efficiency in monitoring the transformer oil.

[0113] To solve the above problems, in this embodiment, an automatic collection and monitoring method for transformer oil and gas without power outage is established. This method uses machines to replace people, improves the safety of transformer oil and gas collection, and improves the accuracy of oil and gas monitoring. At the same time, the collection process and monitoring process can be completed by a fully automatic device. Figure 7 is a schematic diagram of an automatic collection and monitoring device according to an embodiment of the present invention, such as Figure 7 As shown, the device may include a central control system 701 , a transformer oil collection unit 702 , a gas collection unit 703 , a dissolved gas in oil monitoring unit 704 , a transformer oil monitoring unit 705 and a diagnostic storage unit 706 .

[0114] Optionally, the transformer oil can be transferred to the transformer oil collection unit 702 and / or the gas collection unit 703 through the oil and gas collection solenoid valve 707 after the transformer is modified.

[0115] Optionally, the central control system 701, as the control brain of the device, can control each unit separately, and the central control system can obtain transformer equipment information, oil temperature and other data from the power grid management system. The transformer oil collection unit 702 and the gas collection unit 703 can be responsible for completing the automatic collection of transformer oil and gas respectively.

[0116] Optionally, the dissolved gas monitoring unit 704 can monitor the content of each component of the dissolved gas and gas in the transformer oil. The transformer oil monitoring unit 705 can monitor the transformer oil micro-water, breakdown voltage, and dielectric loss. The dissolved gas monitoring unit 704 and the transformer oil monitoring unit 705 can transmit the monitoring results to the diagnosis and storage unit 706, and the diagnosis and storage unit 706 can analyze and judge the monitoring results according to the set judgment method.

[0117] In this embodiment, wireless transmission control is adopted between the central control system and each unit. The central control system is responsible for remote command and control. The diagnostic storage unit does not need to arrive at each substation to work, so these two parts can be placed in a fixed place and adopt a fixed type. The central control system can be used to control the transformer oil collection unit, the gas collection unit, the dissolved gas monitoring unit in oil, and the transformer oil monitoring unit respectively. When receiving the collection and monitoring tasks, the equipment operation and maintenance personnel transport the equipment to the target substation by vehicle, and the central control system remotely controls the four units to complete the tasks. After the two monitoring units complete the monitoring, the monitoring results are remotely transmitted to the diagnostic and storage unit, so the collection unit and the monitoring unit are both mobile. In order to accurately move to the target transformer position during collection, the collection unit and the monitoring unit can be integrated and installed on a four-legged mechanical dog, and the movement of the mechanical dog is also controlled by the central system. The oil extraction valve of the transformer and the gas extraction valve and the oil discharge valve of the gas relay gas collection box are conveniently connected to the collection unit through extension and modification. The modified oil and gas collection valve is an electromagnetic valve, and the opening and closing of the valve is controlled by the central control system. The physical connection between the oil and gas collection valve and the collection unit is realized through mature pipeline automatic docking technology.

[0118] Optionally, after a light gas alarm occurs in the transformer, in order to determine the internal state of the transformer, in addition to analyzing the transformer oil, the gas relay must also be checked. The gas in the gas relay can be collected and tested using chromatography to measure the content of each component gas in the gas and transformer oil. Then the balance criterion method can be used to comprehensively analyze and determine the state of the transformer.

[0119] In an embodiment of the present invention, a robot is used to collect transformer oil. When the robot moves to a collection position, the first collection unit in the robot can be controlled to collect the transformer oil, and the monitoring unit can be controlled to monitor the collected transformer oil to obtain a monitoring result. Based on the monitoring result, the working state of the transformer can be determined. It should be clear that the above method can be controlled by a central controller without any manual processing, thereby achieving the technical effect of improving the efficiency of monitoring the transformer oil and solving the technical problem of low efficiency in monitoring the transformer oil.

[0120] According to an embodiment of the present invention, a device for determining the working state of a transformer is also provided. It should be noted that the device for determining the working state of a transformer in this embodiment can be used to execute the method for determining the working state of a transformer in the above embodiment of the present invention.

[0121] Figure 8 Schematic diagram of a device for determining the working state of a transformer according to an embodiment of the present invention. Figure 8As shown, the device 80 for determining the working state of the transformer may include: a first control module 802 , a second control module 804 , a monitoring module 806 and a determining module 808 .

[0122] The first control module 802 is used to control a first collection unit deployed in the robot to connect to the oil extraction valve pipeline of the transformer in response to the robot moving to the collection position, wherein the distance between the collection position and the transformer meets the distance threshold.

[0123] The second control module 804 is used to control the opening and / or closing of multiple solenoid valves in the first collection unit in response to the first collection unit being connected to the oil extraction valve pipeline to collect transformer oil in the transformer.

[0124] The monitoring module 806 is used to control the monitoring unit deployed in the robot to monitor the transformer oil in response to the transformer oil being collected, and obtain the monitoring result.

[0125] The determination module 808 is used to determine the working state of the transformer based on the monitoring result.

[0126] The device for determining the working state of the transformer of this embodiment controls, through a first control module, a first collection unit deployed in the robot to be connected to the oil extraction valve pipeline of the transformer in response to the robot moving to the collection position, wherein the distance between the collection position and the transformer satisfies a distance threshold; controls, through a second control module, respectively opening and / or closing of a plurality of solenoid valves in the first collection unit in response to the first collection unit being connected to the oil extraction valve pipeline to collect transformer oil in the transformer; controls, through a monitoring module, a monitoring unit deployed in the robot to monitor the transformer oil in response to the collection of the transformer oil to obtain a monitoring result; determines, through a determination module, the working state of the transformer based on the monitoring result, thereby achieving the technical effect of improving the efficiency of monitoring the transformer oil and solving the technical problem of low efficiency of monitoring the transformer oil.

[0127] The embodiment of the present invention can provide a computer terminal, which can be any computer terminal device in a computer terminal group. Optionally, in this embodiment, the computer terminal can also be replaced by a terminal device such as a mobile terminal.

[0128] Optionally, in this embodiment, the computer terminal may be located in at least one network device among a plurality of network devices of the computer network.

[0129] In this embodiment, the above-mentioned computer terminal can execute the program code of the following steps in the method for determining the working status of the transformer: in response to the robot moving to the collection position, controlling the first collection unit deployed in the robot to connect to the oil extraction valve pipeline of the transformer, wherein the distance between the collection position and the transformer meets the distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, respectively controlling the opening and / or closing of multiple solenoid valves in the first collection unit to collect transformer oil in the transformer; in response to the transformer oil being collected, controlling the monitoring unit deployed in the robot to monitor the transformer oil to obtain monitoring results; and determining the working status of the transformer based on the monitoring results.

[0130] Optionally, Fig. 9 is a structural block diagram of a computer terminal according to an embodiment of the present invention. Fig. 9 As shown, the computer terminal 908 may include: one or more (only one is shown in the figure) processors 902 , a memory 904 , and a transmission device 906 .

[0131] Among them, the memory can be used to store software programs and modules, such as the program instructions / modules corresponding to the method and device for determining the working state of the transformer in the embodiment of the present invention. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory, that is, the above-mentioned method for determining the working state of the transformer is realized. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include a memory remotely arranged relative to the processor, and these remote memories can be connected to the computer terminal 908 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0132] The processor can call the information and application programs stored in the memory through the transmission device to perform the following steps: in response to the robot moving to the collection position, controlling the first collection unit deployed in the robot to connect to the oil extraction valve pipeline of the transformer, wherein the distance between the collection position and the transformer meets the distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, controlling the opening and / or closing of multiple solenoid valves in the first collection unit to collect transformer oil in the transformer; in response to the transformer oil being collected, controlling the monitoring unit deployed in the robot to monitor the transformer oil to obtain monitoring results; and determining the working state of the transformer based on the monitoring results.

[0133] It can be understood by those skilled in the art that Fig. 9The structure shown is for illustration only, and the computer terminal 908 may also be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a PDA, a mobile Internet device (MID for short), a PAD, or other terminal devices. Fig. 9 The structure of the computer terminal 908 is not limited. For example, the computer terminal 908 may also include Fig. 9 More or fewer components (such as network interfaces, display devices, etc.) shown in, or with Fig. 9 Different configurations shown.

[0134] A person of ordinary skill in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by instructing the hardware related to the terminal device through a program, and the program may be stored in a computer-readable storage medium, and the storage medium may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.

[0135] According to an embodiment of the present invention, a computer-readable storage medium is further provided. The computer-readable storage medium includes a stored program, wherein the program executes the method for determining the working state of the transformer in Embodiment 1.

[0136] Optionally, in this embodiment, the computer-readable storage medium may be located in any one of the computer terminals in a computer terminal group in a computer network, or in any one of the mobile terminals in a mobile terminal group.

[0137] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: in response to the robot moving to the collection position, controlling the first collection unit deployed in the robot to connect to the oil extraction valve pipeline of the transformer, wherein the distance between the collection position and the transformer satisfies the distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, controlling the opening and / or closing of multiple solenoid valves in the first collection unit to collect transformer oil in the transformer; in response to collecting the transformer oil, controlling the monitoring unit deployed in the robot to monitor the transformer oil to obtain monitoring results; and determining the working state of the transformer based on the monitoring results.

[0138] Optionally, the computer-readable storage medium may also execute program codes of the following steps: in response to the first acquisition unit being connected to the oil extraction valve pipeline, controlling the first solenoid valve in the oil extraction valve pipeline and the oil inlet solenoid valve of the first acquisition unit to open, so as to control the transformer oil to be transmitted to the temperature sensor of the first acquisition unit; acquiring temperature data obtained by the temperature sensor monitoring the transformer oil; determining the deviation between the temperature data and the standard temperature data; based on the deviation, determining control data of the storage subunit and the collection subunit in the first acquisition unit, wherein the control data is used to control the opening and closing of the solenoid valve in the storage subunit and the opening and closing of the solenoid valve in the collection subunit; and controlling the storage subunit and the collection subunit according to the control data to complete the collection of the transformer oil.

[0139] Optionally, the computer-readable storage medium can also execute the following program code: in response to a deviation being less than or equal to a deviation threshold, determining that the control data is target control data, wherein the target control data is used to control the first solenoid valve and the oil inlet solenoid valve to close, and control the second solenoid valve in the storage subunit and the third solenoid valve in the collection subunit to open.

[0140] Optionally, the computer-readable storage medium may also execute program codes of the following steps: controlling the storage subunit and the collection subunit according to the target control data to transfer the transformer oil in the storage subunit to the collection subunit; in response to the transformer oil in the storage subunit being transferred to the collection subunit, controlling the first solenoid valve and the oil inlet solenoid valve to be opened, and controlling the second solenoid valve and the third solenoid valve to be closed, so as to re-transfer the transformer oil in the transformer to the storage subunit; in response to the volume of the transformer oil in the storage subunit satisfying the volume threshold, controlling the first solenoid valve and the oil inlet solenoid valve to be closed, and controlling the second solenoid valve and the third solenoid valve to be opened, so as to transfer the re-collected transformer oil to the collection subunit; in response to the re-collected transformer oil being transferred to the collection subunit, controlling the first solenoid valve and the oil inlet solenoid valve to be opened, and controlling the second solenoid valve and the third solenoid valve to be closed, so as to transfer the transformer oil in the transformer to the storage subunit again.

[0141] Optionally, the computer-readable storage medium may also execute program code of the following steps: in response to the volume of transformer oil in the storage subunit satisfying a volume threshold, controlling the first solenoid valve and the oil inlet solenoid valve to close, and controlling the oil extraction valve pipeline and the first collection unit to disconnect.

[0142] Optionally, the computer-readable storage medium may also execute program codes of the following steps: respectively controlling the dielectric loss test subunit, the breakdown voltage test subunit and the water-in-oil test subunit to test the transformer oil and obtain monitoring results.

[0143] Optionally, the computer-readable storage medium may also execute program codes for the following steps: comparing the monitoring result with a standard monitoring result to obtain a comparison result; and determining a working status based on the comparison result.

[0144] Optionally, the computer-readable storage medium can also execute program codes for the following steps: in response to a prompt message sent by the transformer, control the first acquisition unit to collect transformer oil in the transformer, and control the second acquisition unit to collect gas in the gas relay of the transformer; perform oil-gas separation on the transformer oil to obtain the gas to be monitored in the transformer oil; and monitor the gas to be monitored and the gas.

[0145] Optionally, the computer-readable storage medium may also execute program codes of the following steps: in response to a collection instruction, controlling the robot to move to a collection position of the transformer.

[0146] In this embodiment, a robot is used to collect transformer oil. When the robot moves to the collection position, the first collection unit in the robot can be controlled to collect the transformer oil, and the monitoring unit can be controlled to monitor the collected transformer oil to obtain a monitoring result. Based on the monitoring result, the working state of the transformer can be determined. It should be clear that the above method can be controlled by a central controller without any manual processing, thereby achieving the technical effect of improving the efficiency of transformer oil monitoring and solving the technical problem of low efficiency in transformer oil monitoring.

[0147] According to an embodiment of the present invention, a processor is further provided, the processor being used to run a program, wherein when the program is run by the processor, the method for determining the working state of the transformer in Embodiment 1 is executed.

[0148] Optionally, in this embodiment, the computer terminal may be located in at least one network device among a plurality of network devices of the computer network.

[0149] In this embodiment, the above-mentioned computer terminal can execute the program code of the following steps in the method for determining the working status of the transformer: in response to the robot moving to the collection position, controlling the first collection unit deployed in the robot to connect to the oil extraction valve pipeline of the transformer, wherein the distance between the collection position and the transformer meets the distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, respectively controlling the opening and / or closing of multiple solenoid valves in the first collection unit to collect transformer oil in the transformer; in response to the transformer oil being collected, controlling the monitoring unit deployed in the robot to monitor the transformer oil to obtain monitoring results; and determining the working status of the transformer based on the monitoring results.

[0150] Among them, the memory can be used to store software programs and modules, such as the program instructions / modules corresponding to the method and device for determining the working state of the transformer in the embodiment of the present invention. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory, that is, the above-mentioned method for determining the working state of the transformer is realized. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include a memory remotely arranged relative to the processor, and these remote memories may be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0151] The processor can call the information and application programs stored in the memory through the transmission device to perform the following steps: in response to the robot moving to the collection position, controlling the first collection unit deployed in the robot to connect to the oil extraction valve pipeline of the transformer, wherein the distance between the collection position and the transformer meets the distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, controlling the opening and / or closing of multiple solenoid valves in the first collection unit to collect transformer oil in the transformer; in response to the transformer oil being collected, controlling the monitoring unit deployed in the robot to monitor the transformer oil to obtain monitoring results; and determining the working state of the transformer based on the monitoring results.

[0152] By adopting the embodiment of the present invention, a robot is used to collect transformer oil. When the robot moves to the collection position, the first collection unit in the robot can be controlled to collect the transformer oil, and the monitoring unit can be controlled to monitor the collected transformer oil to obtain a monitoring result. Based on the monitoring result, the working state of the transformer can be determined. It should be clarified that the above method can be controlled by a central controller without any manual processing, thereby achieving the technical effect of improving the efficiency of monitoring the transformer oil and solving the technical problem of low efficiency in monitoring the transformer oil.

[0153] According to an embodiment of the present invention, a computer program product is further provided. The computer program product includes computer instructions. When the computer instructions are executed by a processor, the method for determining the working state of the transformer in Embodiment 1 is implemented.

[0154] An embodiment of the present application may provide an electronic device, which may include a memory and a processor.

[0155] Fig.10It is a block diagram of an electronic device according to a method for determining the working state of a transformer according to an embodiment of the present application. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and / or required herein.

[0156] like Fig.10 As shown, the device 1000 includes a computing unit 1001, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 1002 or a computer program loaded from a storage unit 1008 to a random access memory (RAM) 1003. Various programs and data required for the operation of the device 1000 can also be stored in the RAM 1003. The computing unit 1001, the ROM 1002, and the RAM 1003 are connected to each other via a bus 1004. An input / output (I / O) interface 1005 is also connected to the bus 1004.

[0157] A number of components in the device 1000 are connected to the I / O interface 1005, including: an input unit 1006, such as a keyboard, a mouse, etc.; an output unit 1007, such as various types of displays, speakers, etc.; a storage unit 1008, such as a disk, an optical disk, etc.; and a communication unit 1009, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 1009 allows the device 1000 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0158] The computing unit 1001 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 1001 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The computing unit 1001 performs the various methods and processes described above, such as a data verification method. For example, in some embodiments, the data verification method may be implemented as a computer software program, which is tangibly included in a machine-readable medium, such as a storage unit 1008. In some embodiments, part or all of the computer program may be loaded and / or installed on the device 1000 via the ROM 1002 and / or the communication unit 1009. When the computer program is loaded into the RAM 1003 and executed by the computing unit 1001, one or more steps of the data verification method described above may be performed. Alternatively, in other embodiments, the computing unit 1001 may be configured to execute the data verification method in any other appropriate manner (for example, by means of firmware).

[0159] According to an embodiment of the present application, a method for determining the working state of a transformer is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0160] Various embodiments of the systems and techniques described above herein may be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0161] The program code for implementing the method of the present application can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0162] In the context of the present application, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0163] To provide interaction with a user, the systems and techniques described herein may be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or an LCD (liquid crystal display, monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or a path ball) through which the user can provide input to the computer. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0164] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a Local Area Network (LAN), a Wide Area Network (WAN), and the Internet.

[0165] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship with each other. The server may be a cloud server, a server of a distributed system, or a server combined with a blockchain.

[0166] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0167] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0168] In the several embodiments provided by the present invention, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic, for example, the division of units can be a logical function division, and there can be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0169] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0170] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0171] 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. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc. Various media that can store program codes.

[0172] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for determining the working state of a transformer, characterized in that: include: In response to the robot moving to a collection position, controlling a first collection unit deployed in the robot to connect to an oil extraction valve pipeline of a transformer, wherein a distance between the collection position and the transformer satisfies a distance threshold; In response to the first collection unit being connected to the oil extraction valve pipeline, the opening and / or closing of multiple solenoid valves in the first collection unit are controlled respectively to collect transformer oil in the transformer; In response to collecting the transformer oil, controlling a monitoring unit deployed in the robot to monitor the transformer oil to obtain a monitoring result; Based on the monitoring result, determining the working state of the transformer; Wherein, in response to the first acquisition unit being connected to the oil extraction valve pipeline, the opening and / or closing of multiple solenoid valves in the first acquisition unit are controlled respectively to collect transformer oil in the transformer, including: in response to the first acquisition unit being connected to the oil extraction valve pipeline, the first solenoid valve in the oil extraction valve pipeline and the oil inlet solenoid valve of the first acquisition unit are controlled to be opened to control the transformer oil to be transmitted to the temperature sensor of the first acquisition unit; the temperature data obtained by the temperature sensor monitoring the transformer oil is obtained; the deviation between the temperature data and the standard temperature data is determined; and based on the deviation, the opening and / or closing of multiple solenoid valves are controlled respectively.

2. The method according to claim 1, characterized in that Based on the deviation, respectively controlling the opening and / or closing of the plurality of solenoid valves comprises: Based on the deviation, determining control data of a storage subunit and a collection subunit in the first acquisition unit, wherein the control data is used to control the opening and closing of a solenoid valve in the storage subunit and the opening and closing of a solenoid valve in the collection subunit; According to the control data, the solenoid valve in the storage subunit and the solenoid valve in the collection subunit are controlled to complete the collection of the transformer oil.

3. The method according to claim 2, characterized in that The determining, based on the deviation, control data of a storage subunit and a collection subunit in the first acquisition unit includes: In response to the deviation being less than or equal to a deviation threshold, the control data is determined to be target control data, wherein the target control data is used to control the first solenoid valve and the oil inlet solenoid valve to close, and control the second solenoid valve in the storage subunit and the third solenoid valve in the collection subunit to open.

4. The method according to claim 3, characterized in that According to the control data, controlling the storage subunit and the collection subunit to complete the collection of the transformer oil includes: Controlling the storage subunit and the collection subunit according to the target control data to transfer the transformer oil in the storage subunit to the collection subunit; In response to the transformer oil in the storage subunit being transferred to the collection subunit, the first solenoid valve and the oil inlet solenoid valve are controlled to be opened, and the second solenoid valve and the third solenoid valve are controlled to be closed, so as to transfer the transformer oil in the transformer to the storage subunit again; In response to the volume of the transformer oil in the storage subunit meeting a volume threshold, controlling the first solenoid valve and the oil inlet solenoid valve to be closed, and controlling the second solenoid valve and the third solenoid valve to be opened, so as to transfer the recollected transformer oil to the collection subunit; In response to the recollected transformer oil being transferred to the collection subunit, the first solenoid valve and the oil inlet solenoid valve are controlled to be opened, and the second solenoid valve and the third solenoid valve are controlled to be closed, so as to transfer the transformer oil in the transformer to the storage subunit again.

5. The method according to claim 4, characterized in that In response to the recollected transformer oil being transferred to the collection subunit, the first solenoid valve and the oil inlet solenoid valve are controlled to be opened, and the second solenoid valve and the third solenoid valve are controlled to be closed, so as to transfer the transformer oil in the transformer to the storage subunit again, the method further includes: In response to the volume of the transformer oil in the storage subunit meeting the volume threshold, the first solenoid valve and the oil inlet solenoid valve are controlled to be closed, and the oil extraction valve pipeline and the first collection unit are controlled to be disconnected.

6. The method according to claim 1, characterized in that The monitoring unit at least includes a dielectric loss test subunit, a breakdown voltage test subunit and an oil micro-water test subunit. The monitoring unit deployed in the robot is controlled to monitor the transformer oil to obtain a monitoring result, including: The dielectric loss test subunit, the breakdown voltage test subunit and the water-in-oil test subunit are respectively controlled to test the transformer oil to obtain the monitoring result.

7. The method according to claim 1, characterized in that The determining the working state of the transformer based on the monitoring result includes: Comparing the monitoring result with a standard monitoring result to obtain a comparison result; Based on the comparison result, the working status is determined.

8. The method according to claim 1, characterized in that The method further comprises: In response to the prompt information sent by the transformer, the first collection unit is controlled to collect transformer oil in the transformer, and the second collection unit is controlled to collect gas in the gas relay of the transformer; Performing oil-gas separation processing on the transformer oil to obtain the gas to be monitored in the transformer oil; The gas to be monitored and the gaseous gas are monitored.

9. The method according to claim 1, characterized in that: The method further comprises: In response to the collection instruction, the robot is controlled to move to a collection position of the transformer.

10. A system for determining the working state of a transformer, characterized in that: include: A first collection unit is used to collect transformer oil in the transformer; A monitoring unit, used to monitor the transformer oil and obtain monitoring results; A central control system is used to control the robot to move to a collection position, control the first collection unit deployed in the robot to connect to the oil extraction valve pipeline of the transformer, wherein the distance between the collection position and the transformer meets a distance threshold; in response to the first collection unit being connected to the oil extraction valve pipeline, respectively control the opening and / or closing of multiple solenoid valves in the first collection unit to collect the transformer oil; in response to the transformer oil being collected, control the monitoring unit deployed in the robot to monitor the transformer oil; and determine the working state of the transformer based on the monitoring result; The central control system is used to control the opening and / or closing of multiple solenoid valves in the first acquisition unit to collect transformer oil in the transformer in response to the first acquisition unit being connected to the oil extraction valve pipeline through the following steps: in response to the first acquisition unit being connected to the oil extraction valve pipeline, control the opening of the first solenoid valve in the oil extraction valve pipeline and the oil inlet solenoid valve of the first acquisition unit to control the transmission of the transformer oil to the temperature sensor of the first acquisition unit; obtain the temperature data obtained by the temperature sensor monitoring the transformer oil; determine the deviation between the temperature data and the standard temperature data; and based on the deviation, control the opening and / or closing of multiple solenoid valves.

11. The system according to claim 10, characterized in that The system further comprises: The second collection unit is used to collect gas in the gas relay of the transformer.

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