Closing resistor friction force monitoring method and system

Abstract

The invention discloses a closing resistor friction force monitoring method and system, and the method comprises the steps: generating a closing resistor model, and configuring the closing resistor model to comprise a plurality of closing resistor assemblies; acquiring closing resistor friction force monitoring data according to the data code, and classifying the closing resistor friction force monitoring data according to the data code; binding similar closing resistor friction force monitoring data with a closing resistor assembly; and judging whether the closing resistor friction force monitoring data is abnormal, and when the closing resistor friction force monitoring data is abnormal, highlighting the corresponding closing resistor assembly and the closing resistor friction force monitoring data. Closing resistor friction force monitoring data.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of automatic control technology, and in particular to a closing resistance friction force monitoring method and system. Background Art

[0002] Closing resistors are electrical components installed in high-voltage switches and their power distribution devices. Their main function is to limit the instantaneous current impact when closing, reduce the potential peak and depth, and reduce the electrical stress level of the equipment, so as to reduce equipment damage and increase service life. Usually, 500kV lines with a length of more than 200km will have closing resistors at both ends of the circuit breaker. Ensuring that the friction force of the closing resistor before and after closing is within the qualified range can effectively improve the reliability of the equipment and the safety of operation, thereby better protecting the power system and improving the reliability of the power system.

[0003] At present, the friction force test of the closing resistor before and after closing mainly relies on manual on-site measurement and recording. This method is inefficient and unsafe, and there may be misjudgment in manual judgment of whether the friction force is qualified, which will affect the installation progress of the closing resistor and the reliability of the power system. Summary of the invention

[0004] The present invention provides a closing resistor friction force monitoring method and system, so as to achieve the purpose of realizing automatic and visual monitoring of closing resistor friction force monitoring data.

[0005] In a first aspect, an embodiment of the present invention provides a closing resistance friction force monitoring method, comprising:

[0006] Generate a closing resistance model, and configure the closing resistance model to include a plurality of closing resistance components;

[0007] Acquiring closing resistance friction force monitoring data according to the data code, and classifying the closing resistance friction force monitoring data according to the data code;

[0008] Binding the same type of closing resistance friction monitoring data and closing resistance components;

[0009] It is determined whether the closing resistor friction force monitoring data is abnormal. When the closing resistor friction force monitoring data is abnormal, the corresponding closing resistor component and the closing resistor friction force monitoring data are highlighted.

[0010] Optionally, the data code includes: an address bit, a function bit, a data bit and a byte number bit;

[0011] The address bit is used to classify the closing resistance friction force monitoring data, the function bit is used to determine whether the data code is a read or write operation, the data bit is used to represent the closing resistance friction force monitoring data, and the byte number is used to identify the number of bytes of the data code.

[0012] Optionally, determining whether the closing resistance friction force monitoring data is abnormal includes:

[0013] If the closing resistance friction force monitoring data is greater than an upper limit value, or the closing resistance friction force monitoring data is less than a lower limit value, it is determined that the closing resistance friction force monitoring data is abnormal.

[0014] Optionally, the closing resistance model is a three-dimensional visualization model;

[0015] The closing resistance model supports moving, rotating, scaling, cutting, showing and hiding, and displaying an exploded view.

[0016] Optionally, the closing resistance model also supports parent node selection, that is, when a parent node is selected, all child nodes corresponding to the parent node are selected at the same time.

[0017] Optionally, the closing resistor assembly includes a contact, an operating mechanism and a sliding component, and the contact, the operating mechanism and the sliding component are configured as a parent node;

[0018] The contacts, operating mechanism and sliding component are configured to be highlighted independently.

[0019] Optionally, the closing resistance friction monitoring data includes contact friction monitoring data, operating mechanism friction monitoring data, and sliding component friction monitoring data.

[0020] Optionally, when the closing resistor friction force monitoring data is abnormal, the corresponding closing resistor component is highlighted in the first color;

[0021] When the closing resistor friction force monitoring data is normal, the corresponding closing resistor component is highlighted in the second color.

[0022] Optionally, binding the same type of closing resistance friction monitoring data and closing resistance components includes:

[0023] The same type of closing resistor friction monitoring data and closing resistor components are set to correspond one to one, and an alarm event is triggered for the associated value of the closing resistor component.

[0024] In a second aspect, an embodiment of the present invention provides a closing resistor friction force monitoring system, including a closing resistor model assembly display unit and a data processing unit;

[0025] The closing resistance model assembly display unit is used to display the closing resistance model;

[0026] Wherein, the closing resistor model assembly display unit is further configured to highlight one or more closing resistor components in the closing resistor model when the closing resistor friction force is abnormal, and display the closing resistor friction force monitoring data bound to the corresponding closing resistor component;

[0027] The data processing unit is used to classify the closing resistor friction force monitoring data according to the data code, and obtain the closing resistor friction force monitoring data corresponding to the closing resistor component of this type;

[0028] The data processing unit is also configured to bind the closing resistor friction force monitoring data with the corresponding closing resistor component, determine whether the closing resistor friction force monitoring data is abnormal, and when the closing resistor friction force monitoring data is abnormal, enable the closing resistor model assembly display unit to highlight the corresponding closing resistor component and the closing resistor friction force monitoring data.

[0029] Optionally, the data processing unit is configured as:

[0030] If the closing resistance friction force monitoring data is greater than an upper limit value, or the closing resistance friction force monitoring data is less than a lower limit value, it is determined that the closing resistance friction force monitoring data is abnormal.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention proposes a closing resistor friction monitoring method, the method comprising generating a closing resistor model, based on which the installer can intuitively determine the structure of the closing resistor, reducing training costs, and also comprising classifying the closing resistor friction monitoring data according to the data code, determining the closing resistor friction monitoring data corresponding to the specified type of closing resistor component, and when it is judged that the closing resistor friction monitoring data is abnormal, the abnormal closing resistor friction monitoring data and the closing resistor component corresponding to the abnormal data can be displayed, thereby realizing automatic monitoring of the friction of the closing resistor, the friction test before and after the closing of the closing resistor does not rely on manual on-site measurement and recording, the automatic monitoring has high efficiency and high safety, can avoid the possible misjudgment phenomenon of manual judgment on whether the friction is qualified, and improve the installation progress of the closing resistor and the reliability of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a flow chart of a closing resistance friction force monitoring method in an embodiment;

[0033] Figure 2 is a flow chart of generating a closing resistance model in an embodiment;

[0034] Figure 3is a structural block diagram of a closing resistance friction monitoring system in an embodiment;

[0035] Figure 4 1 is a working flow chart of the closing resistance friction force monitoring system in the embodiment. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0037] Figure 1 is a flow chart of the closing resistance friction force monitoring method in the embodiment, refer to Figure 1 , methods include:

[0038] S101. Generate a closing resistance model, and configure the closing resistance model to include multiple closing resistance components.

[0039] In this embodiment, the structure of the closing resistor model is set to be the same as that of the actual closing resistor;

[0040] Specifically, the closing resistance model is set to consist of a plurality of closing resistance components, wherein the closing resistance components are the same as the closing resistance components included in the actual closing resistance.

[0041] In this embodiment, the method and software used to generate the closing resistance model are not limited and can be freely selected according to needs.

[0042] S102. Acquire closing resistance friction force monitoring data according to the data code, and classify the closing resistance friction force monitoring data according to the data code.

[0043] S103. Bind the similar closing resistance friction monitoring data and closing resistance components.

[0044] S104. Determine whether the closing resistor friction monitoring data is abnormal. When the closing resistor friction monitoring data is abnormal, highlight the corresponding closing resistor component and the closing resistor friction monitoring data.

[0045] In this embodiment, the type of the closing resistor is not limited, and the closing resistor may be a series closing resistor or a parallel closing resistor;

[0046] Accordingly, in this embodiment, according to the specific applicable closing resistor, the assembly (assembly) process of the closing resistor is determined according to actual operation requirements.

[0047] In this embodiment, the closing resistance model is set to consist of a plurality of closing resistance components, wherein the closing resistance components are the same as the closing resistance components included in the actual closing resistance.

[0048] In this embodiment, the specific form of the closing resistance model is not limited, and it can be a two-dimensional model or a three-dimensional model.

[0049] In this embodiment, the closing resistor friction force monitoring data may include multiple types, and one type of closing resistor friction force monitoring data corresponds to one type of closing resistor component;

[0050] Correspondingly, classifying the closing resistor friction force monitoring data specifically includes determining which closing resistor component the closing resistor friction force monitoring data specifically corresponds to.

[0051] In this embodiment, the data code may include a classification code and closing resistor friction force monitoring data, wherein one classification code is configured to correspond to one closing resistor component, and the classification of the closing resistor friction force monitoring data is configured based on the classification code;

[0052] In this embodiment, the form of the classification code can be freely set according to needs. For example, the classification code can be a binary number, a decimal number, or a letter, a Chinese character, or the like.

[0053] In this embodiment, the same type of closing resistance friction monitoring data and closing resistance components refer to that the friction data generated when an (actual) closing resistance component is actuated is the same type of closing resistance friction monitoring data as the closing resistance component (the closing resistance component included in the closing resistance model and corresponding to the same actual closing resistance component);

[0054] In this embodiment, the same type of closing resistor components and closing resistor friction force monitoring data can be determined according to the classification code. After the classification code is determined, the closing resistor friction force monitoring data and closing resistor components with the same classification code are classified into the same type according to the corresponding relationship between the preset classification code and the closing resistor component.

[0055] In this embodiment, the data code can be determined by splicing the classification code and the closing resistance friction force monitoring data through data (characters), or by performing a specified logical operation on the classification code and the closing resistance friction force monitoring data.

[0056] In this embodiment, the data code can be generated and sent by a measurement system connected to the closing resistance friction monitoring system, wherein the specific structure of the measurement system is not limited, and the measurement system at least includes a friction testing instrument, which is used to measure the closing resistance friction monitoring data.

[0057] In this embodiment, the closing resistor friction force monitoring data specifically represents the friction force data of a specified closing resistor component.

[0058] In this embodiment, the method for judging whether the closing resistance friction force monitoring data is abnormal can be to determine whether the closing resistance friction force monitoring data is abnormal by comparing it with a preset threshold value, or to determine whether the closing resistance friction force monitoring data is abnormal by a preset function model.

[0059] The present embodiment proposes a closing resistor friction monitoring method, which includes generating a closing resistor model. Based on the closing resistor model, the installer can intuitively determine the structure of the closing resistor, thereby reducing training costs. The method also includes classifying the closing resistor friction monitoring data according to the data code, determining the closing resistor friction monitoring data corresponding to the specified type of closing resistor component, and when it is determined that the closing resistor friction monitoring data is abnormal, the abnormal closing resistor friction monitoring data and the closing resistor component corresponding to the abnormal data can be displayed, thereby realizing automatic monitoring of the friction of the closing resistor. The friction test before and after the closing of the closing resistor does not rely on manual on-site measurement and recording. The automatic monitoring is efficient and safe, and can avoid the possibility of misjudgment in manual judgment of whether the friction is qualified or not, thereby improving the installation progress of the closing resistor and the reliability of the power system.

[0060] exist Figure 1 On the basis of the scheme shown, in one possible implementation scheme, an assembly process of generating a closing resistance model is further included. In this scheme, the assembly process of the closing resistance model is specifically as follows:

[0061] Based on the closing resistor component, each step of assembling the closing resistor is displayed in sequence in the form of animation according to the actual operation, that is, according to the established steps, the specified closing resistor components are assembled to the specified positions in sequence.

[0062] Based on the scheme of displaying the assembly process of the closing resistor model, in one possible implementation scheme, the assembly process of the closing resistor includes:

[0063] The assembly and adjustment of the cross arm, the moving side assembly, the static contact assembly, the transmission mechanism chamber and the moving contact, the insulation cylinder assembly, the static contact docking, and the resistor string assembly are displayed in sequence.

[0064] Exemplarily, in this solution, for a certain type of closing resistor, the assembly process of the closing resistor is set to include the assembly and adjustment of the cross arm, the assembly of the moving side, the assembly of the static contact, the assembly of the transmission mechanism chamber and the moving contact, the assembly of the insulation cylinder, the docking of the static contact, and the assembly of the resistor string;

[0065] Correspondingly, when the closing resistor model assembly display unit 100 is set to display the assembly process of the closing resistor, the cross arm assembly and adjustment, moving side assembly, static contact assembly, transmission mechanism chamber and moving contact, insulation cylinder assembly, static contact docking, and resistor string assembly are displayed in sequence.

[0066] Exemplarily, in this scheme, the cross arm is set to form a fracture, the moving side is the side where the moving contact is located, the static contact is one or more static contacts, which may include a static main contact and a static arc contact, the transmission mechanism chamber is used to drive the moving contact close to or away from the static contact, the moving contact is one or more moving contacts, which may include a moving main contact and a moving arc contact, the insulating cylinder is used for insulation of the outside of the closing resistor, and the resistor string is a resistor stack.

[0067] exist Figure 1 Based on the scheme shown, in one possible implementation scheme, the data code includes: address bits, function bits, data bits and byte number bits;

[0068] The address bit is used to classify the closing resistance friction force monitoring data, the function bit is used to determine whether the data code is a read or write operation, the data bit is used to represent the closing resistance friction force monitoring data, and the byte number bit is used to identify the number of bytes of the data code.

[0069] In this solution, it is set that the closing resistance friction force monitoring system receives the data code, wherein the data code can be generated and sent by the closing friction force measurement system connected to the closing resistance friction force monitoring system.

[0070] In this solution, the closing friction force measurement system may include a friction force testing instrument and an industrial computer. The friction force testing instrument is used to measure the friction force of a specified closing resistance component, and the industrial computer is used to generate a data code.

[0071] Exemplarily, in this solution, the data code may be configured in the following form: 010303E804;

[0072] Among them, 01 represents the data of the address bit, 03 represents the data of the function bit, 03E8 represents the data of the data bit, and 04 represents the data of the byte bit;

[0073] In this solution, the meaning of each data can be defined according to the requirements. For example, 01 is set to represent the friction tester of 01H (number), 03 represents the read operation, 03E8 represents the hexadecimal number (corresponding to decimal 1000), and 04 represents the number of bytes is 4.

[0074] Based on any of the above solutions, in one possible implementation scheme, determining whether the closing resistance friction force monitoring data is abnormal includes:

[0075] If the closing resistance friction force monitoring data is greater than the upper limit value, or the closing resistance friction force monitoring data is less than the lower limit value, it is determined that the closing resistance friction force monitoring data is abnormal.

[0076] In this solution, for the closing resistance friction force monitoring data of different closing resistance components, the corresponding upper limit value and lower limit value can be determined based on experience, calibration test or simulation test;

[0077] The upper limit values ​​corresponding to different types of closing resistance components may be the same or different, and the lower limit values ​​may be the same or different.

[0078] Based on any of the foregoing solutions, in one possible implementation, the closing resistance model is a three-dimensional visualization model.

[0079] In this solution, the closing resistance model is configured to support moving, rotating, scaling, cutting, showing and hiding, and displaying exploded views.

[0080] Based on any of the above solutions, in one possible implementation scheme, the closing resistance model also supports parent node selection, that is, when a parent node is selected, all child nodes corresponding to the parent node are selected at the same time.

[0081] In this solution, for the closing resistance model, you can view and operate all child nodes under the parent node by selecting the parent node;

[0082] For example, during the assembly of a static contact, seven contact fingers are grouped together. One parent node can be set for the seven contact fingers. The seven contact fingers can be selected simultaneously by directly selecting their parent node to avoid repetitive operations. Sub-nodes can also be merged for parts that do not require detailed operations.

[0083] Based on the scheme of configuring the parent node of the closing resistance model, in one possible implementation scheme, the closing resistance component includes a contact, an operating mechanism and a sliding component, and the contact, the operating mechanism and the sliding component are configured as a parent node;

[0084] The contacts, operating mechanism and sliding member are configured to be highlighted independently of each other.

[0085] In this solution, the contact includes a stationary contact and a moving contact, the operating mechanism is used to manually disconnect or connect the moving contact and the stationary contact, and the sliding component is used to drive the moving contact to approach or move away from the stationary contact.

[0086] Exemplarily, in this solution, the closing resistance friction monitoring data is set to mainly include the monitoring data of the contact, the operating mechanism and the sliding component, specifically including the contact friction monitoring data, the operating mechanism friction monitoring data and the sliding component friction monitoring data. ;

[0087] The three closing resistance components of the contact, the operating mechanism and the sliding part are combined into an integral node, that is, a parent node is set to facilitate manual selection operations and highlight display.

[0088] On the basis of a solution that the closing resistance friction monitoring data includes contact friction monitoring data, operating mechanism friction monitoring data, and sliding component friction monitoring data, in one feasible implementation scheme, a first upper limit value corresponding to the contact friction monitoring data is set to 1131N, and a first lower limit value is set to 889N;

[0089] The second upper limit value corresponding to the monitoring data of the friction force of the operating mechanism is 8602N, and the second lower limit value is 6758N;

[0090] The third upper limit corresponding to the sliding component friction force monitoring data is 7918N, and the third lower limit is 6222N.

[0091] Based on any of the foregoing solutions, in one possible implementation scheme, the data processing unit is configured to receive a data code once per second.

[0092] Figure 2 is a flow chart of the closing resistance model generation in the embodiment, refer to Figure 2 Based on any of the above solutions, in one possible implementation scheme, the closing resistance model generation process includes:

[0093] Obtain closing resistor data, generate CAD drawings, generate CREO drawings, obtain closing resistor photo data, photo processing, material analysis, model coloring and mapping, and import model into the system.

[0094] In this solution, the closing resistance model generation process can be specifically as follows:

[0095] Collect data and photos of the closing resistors produced by the High Voltage Switch Manufacturing Department of Chint Electric Co., Ltd., including the dimensions of the various parts of the closing resistors and the materials and colors of the various parts;

[0096] Arrange the components of the closing resistor into a two-dimensional CAD drawing according to their dimensions, and conduct material analysis with reference to photos and physical objects;

[0097] Draw a three-dimensional model based on drawings and photo materials, and then perform mapping and coloring operations on the three-dimensional model based on the results of material analysis to make it closer to the real physical model.

[0098] exist Figure 1 Based on the scheme shown, in one possible implementation scheme, binding the same type of closing resistance friction monitoring data and closing resistance components includes:

[0099] Set the same type of closing resistance friction monitoring data and closing resistance components to correspond one to one, and trigger an alarm event for the closing resistance component associated value.

[0100] Exemplarily, in this solution, the closing resistor component is bound to the corresponding data point, and the address code (bit) of the data point needs to correspond to the set address code to ensure that the friction force value of the actual part corresponds to the value of the corresponding closing resistor component;

[0101] At the same time, an alarm event is associated with the model part that needs to be detected. The triggering mode of the alarm event is value triggering. The trigger condition selects the interval. The upper and lower limits of the interval are set to the upper and lower limits of the qualified friction value of the closing resistor at this part (closing resistor component). The higher the friction value is, the higher the upper limit or the lower limit, the alarm will be triggered.

[0102] For example, if the upper and lower limits of the interval are set to 1200N and 1100N respectively, the lower limit alarm will be triggered when the friction value reaches 1000N;

[0103] Embodiment 2

[0104] Figure 3 This is a structural block diagram of the closing resistance friction monitoring system in the embodiment, refer to Figure 3 , the closing resistance friction force monitoring system comprises: a closing resistance model assembly display unit 100, a data processing unit 200;

[0105] The closing resistance model assembly display unit 100 is used to display the closing resistance model;

[0106] The closing resistor model assembly display unit 100 is further configured to highlight a closing resistor component in a corresponding closing resistor model when a closing resistor friction force is abnormal, and to highlight closing resistor components in multiple corresponding closing resistor models when multiple closing resistor friction forces are abnormal;

[0107] The closing resistor model assembly display unit 100 is also configured to display the closing resistor friction monitoring data bound to the corresponding closing resistor assembly;

[0108] The data processing unit 200 is used to classify the closing resistor friction force monitoring data according to the data code, and obtain the closing resistor friction force monitoring data corresponding to the closing resistor component of this type;

[0109] The data processing unit 200 is also configured to bind the closing resistor friction monitoring data with the corresponding closing resistor component to determine whether the closing resistor friction monitoring data is abnormal. When the closing resistor friction monitoring data is abnormal, the closing resistor model assembly display unit 100 highlights the corresponding closing resistor component and the closing resistor friction monitoring data.

[0110] In this embodiment, if the data processing unit 200 determines that one or several types of closing resistance friction monitoring data are abnormal, the data processing unit 200 interacts with the closing resistance model assembly display unit 100;

[0111] The data processing unit 200 sends the abnormal closing resistor friction monitoring data and the category of the corresponding closing resistor component to the closing resistor model assembly display unit 100, and the closing resistor model assembly display unit 100 highlights the corresponding category of the closing resistor component and displays the abnormal closing resistor friction monitoring data at the same time.

[0112] Exemplarily, in this embodiment, the closing resistance model assembly display unit 100 can be specifically configured to implement any one of the closing resistance model generation method and closing resistance model display method in the first embodiment;

[0113] The data processing unit 200 is configured to receive the data code. The data processing unit 200 can be specifically configured to implement any one of the closing resistance friction force monitoring data judgment methods and the closing resistance friction force monitoring data and closing resistance component binding methods in the first embodiment.

[0114] Preferably, in one possible implementation scheme, the data processing unit 200 is configured as follows:

[0115] If the closing resistance friction force monitoring data is greater than the upper limit value, or the closing resistance friction force monitoring data is less than the lower limit value, it is determined that the closing resistance friction force monitoring data is abnormal.

[0116] Figure 4 This is the working flow diagram of the closing resistance friction monitoring system in the embodiment, refer to Figure 4 Based on the solution recorded in Example 1, in one possible implementation scheme, the system operation and configuration process includes:

[0117] Assemble the model, obtain the measured friction, generate data code, receive the data code, parse and process the data code, bind the friction data to the model, and display the results.

[0118] In this solution, the assembly model is as follows:

[0119] First, according to the process of the closing resistor assembly operation installation guide, the closing resistor assembly is divided into six steps: cross arm assembly and adjustment; moving side assembly; static contact assembly; transmission mechanism chamber and moving contact, insulation cylinder assembly; static contact docking; resistor string assembly;

[0120] Then, the assembly process animation of each step is completed step by step. The assembly animation production of each step is based on first importing the component model required for this step, and then arranging the parts installation sequence according to the closing resistor assembly operation installation guide. After the arrangement is completed, the parts assembly process is carried out;

[0121] The operations on each component model during the assembly process include moving, rotating, scaling, cutting, showing and hiding, and exploded views, etc., among which moving and rotating can be done by manually dragging the model;

[0122] You can also directly input the pre-calculated X, Y, and Z values ​​to let the model move and rotate by itself. The X, Y, and Z values ​​of movement represent the distance moved along the X, Y, and Z axes, and the X, Y, and Z values ​​of rotation represent the angle of rotation along the X, Y, and Z axes. For example, during the dynamic measurement assembly process, screwing in and tightening require movement and rotation operations.

[0123] Scaling can be achieved by simply inputting the ratio to be enlarged or reduced. Currently, the model can be enlarged or reduced up to one thousand times. Since the tooling and model may be drawn by different software, there may be slight size deviations when imported, so scaling is required;

[0124] The cutting operation can be performed according to the width and depth desired by the operator, so as to see the internal structure of the parts more clearly. During the assembly of the closing resistor, the cutting operation is mainly used to check whether the screw holes and screws between the parts are aligned;

[0125] The display and hide operation can be set to control the display and hiding of some or all other components when a certain component is being assembled, so as to avoid the situation where the assembly process cannot be seen clearly due to the obstruction of the model. For example, in the assembly process of the static contact, the contact finger frame and contact fingers are installed first, and then the static arc contact is installed. Therefore, when installing the static arc contact, the contact finger frame and contact fingers need to be hidden to see the installation process of the static arc contact clearly.

[0126] The exploded view is to explode the assembled model after the step assembly is completed, so that it can be determined whether there are any missing parts in the assembled step model.

[0127] Based on the node tree function, you can view and operate all the child nodes under the parent node by selecting the parent node. For example, in the assembly process of the static contact, seven contact fingers are a group. You can select the seven contact fingers at the same time by directly selecting their parent node to avoid repetitive operations. You can also merge the child nodes of the parts that do not require detailed operations, making the model lightweight and loading faster in the published state;

[0128] In this scheme, the assembly steps are cross arm assembly and adjustment, dynamic measurement assembly, static contact assembly, transmission mechanism chamber and dynamic contact and insulation cylinder assembly, static contact docking, and resistor string assembly. During the process, the node relationship between different steps is ensured to be reasonable and orderly, and the component nodes of the three parts that need to be monitored, namely the arc contact and static arc contact, operating mechanism and sliding part, are merged into an integral node. At the same time, the position between the component models should also be ensured to be accurate to prevent the occurrence of mold penetration and subsequent alarm display confusion.

[0129] In this solution, obtaining the measured friction force, generating the data code, receiving the data code, parsing and processing the data code are specifically as follows:

[0130] Conduct friction tests on the contacts (including moving arc contacts and static arc contacts), operating mechanisms and sliding parts of the assembled closing resistor on site. Generate data codes based on the friction data detected by the dedicated friction test instrument and send them to the system. The data processing unit receives the data codes through the API interface and sets the receiving frequency to once per second.

[0131] Set the address of the friction test instrument. For example, the address codes of the friction test instruments at different locations can be set to 01H, 02H, etc., respectively. The collected unprocessed friction measurement data is transmitted to the designated device, and the designated device generates a data code.

[0132] The system configures the corresponding data parsing dictionary according to the set address code and the data format sent by the friction test instrument to parse the received data code into an easily recognizable decimal value and display it;

[0133] For example, the system receives a set of parameters of 01 03 03E8 04, where 01 represents the data measured by the friction tester with the address code of 01H, the first 03 is a read command, indicating that only a read operation is performed on the data, 03E8 is the hexadecimal friction value collected and sent by the friction tester, and the data processing unit converts it into a decimal value of 1000, which means that the friction value detected by the friction tester with the current address code of 01H is 1000N, and 04 represents the number of byte bits is 4.

[0134] In this solution, the friction data is bound to the model and the display results can be specifically as follows:

[0135] Bind the corresponding parts (closing resistance components) of the closing resistance model in the system to the corresponding data points. The address code (bit) of the data point needs to correspond to the set address code to ensure that the friction force value of the actual part corresponds to the value of the model part.

[0136] At the same time, an alarm event is associated with the model part that needs to be detected. The triggering mode of the alarm event is numerical triggering. The trigger condition selects the interval, and the upper and lower limits of the interval are set to the upper and lower limits of the qualified friction value of the closing resistor at this part. Finally, the analyzed friction value is imported into the corresponding part of the model. The higher the upper or lower limit of the friction value, the alarm will be triggered. For example, the upper and lower limits of the interval are set to 1200N and 1100N respectively, and the lower limit alarm will be triggered when the friction value is 1000N.

[0137] In this solution, the processed data of the moving arc contact and the static arc contact, the operating mechanism and the sliding part are used to create data points, and then the corresponding data points are bound to the overall nodes of the corresponding parts of the closing resistance model in the system, and an alarm event triggered by the value exceeding the limit is set to determine whether the friction force is qualified. Table 1 shows the upper and lower limits of the friction force before and after the moving arc contact and the static arc contact are closed;

[0138] As the friction test proceeds, the friction monitoring results of the moving arc contact, static arc contact, operating mechanism and sliding parts will be visualized by the digital twin model. If the friction test results are within the upper and lower limits, the corresponding parts of the digital twin model will flash green. If the friction test results are higher than the upper or lower limit, the corresponding parts of the digital twin model will flash red, to warn the operator that the friction test of this part has failed. At the same time, the digital twin platform will generate a test log that can be retrieved by time.

[0139] Table 1

[0140] Measuring point (travel) Upper limit Lower limit 100mm 1131N 889N 188mm 8602N 6758N 200mm 7918N 6222N

[0141] Exemplarily, in this solution, the system's hardware platform can select a digital twin platform, and the configuration of the digital twin platform includes a closing resistance model assembly display unit and a data processing unit, thereby realizing the display of a three-dimensional closing resistance model and automatic monitoring of abnormal closing resistance friction force monitoring data.

[0142] In this solution, based on the digital twin platform, we can make full use of its physical model, sensor updates, and operation history, integrate multi-disciplinary, multi-physical quantity, multi-scale, and multi-probability simulation processes, and complete mapping in the virtual space, thereby reflecting the entire life cycle of the corresponding physical equipment.

[0143] The present embodiment proposes a closing resistor friction monitoring system, which includes a closing resistor model assembly display unit and a data processing unit. Based on the closing resistor model assembly display unit, the closing resistor assembly process can be restored, so that the closing resistor installer can intuitively determine the correct installation steps of the closing resistor, reducing training costs. Based on the closing resistor model assembly display unit, abnormal closing resistor friction monitoring data and the closing resistor components corresponding to the abnormal data can also be realized, thereby realizing automatic monitoring of the friction of the closing resistor. The friction test before and after the closing of the closing resistor does not rely on manual on-site measurement and recording. The system automatic monitoring has high efficiency and high safety, which can avoid the possible misjudgment of manual judgment on whether the friction is qualified, thereby improving the installation progress of the closing resistor and the reliability of the power system.

[0144] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for monitoring the friction force of a closing resistor, characterized in that: include: Generate a closing resistance model, and configure the closing resistance model to include a plurality of closing resistance components; Acquiring closing resistance friction force monitoring data according to the data code, and classifying the closing resistance friction force monitoring data according to the data code; Binding the same type of closing resistance friction monitoring data and closing resistance components; It is determined whether the closing resistor friction force monitoring data is abnormal. When the closing resistor friction force monitoring data is abnormal, the corresponding closing resistor component and the closing resistor friction force monitoring data are highlighted.

2. The closing resistance friction force monitoring method according to claim 1, characterized in that: The data code includes: address bit, function bit, data bit; The address bit is used to classify the closing resistance friction force monitoring data, the function bit is used to determine whether the data code is a read or write operation, and the data bit is used to represent the closing resistance friction force monitoring data.

3. The closing resistance friction force monitoring method according to claim 1, characterized in that: Determining whether the closing resistance friction monitoring data is abnormal includes: If the closing resistance friction force monitoring data is greater than an upper limit value, or the closing resistance friction force monitoring data is less than a lower limit value, it is determined that the closing resistance friction force monitoring data is abnormal.

4. The closing resistance friction force monitoring method according to claim 1, characterized in that: The closing resistance model is also configured to support parent node selection, that is, when a parent node is selected, all child nodes corresponding to the parent node are selected at the same time.

5. The closing resistance friction force monitoring method according to claim 4, characterized in that: The closing resistor assembly includes a contact, an operating mechanism and a sliding component, and the contact, the operating mechanism and the sliding component are configured as a parent node; The contacts, operating mechanism and sliding component are configured to be highlighted independently.

6. The closing resistance friction force monitoring method according to claim 5, characterized in that: The closing resistance friction monitoring data includes contact friction monitoring data, operating mechanism friction monitoring data, and sliding component friction monitoring data.

7. The closing resistance friction force monitoring method according to claim 1, characterized in that: When the closing resistor friction force monitoring data is abnormal, the corresponding closing resistor component is highlighted in the first color; When the closing resistor friction force monitoring data is normal, the corresponding closing resistor component is highlighted in the second color.

8. The closing resistance friction force monitoring method according to claim 1, characterized in that: Binding the same type of closing resistance friction monitoring data and closing resistance components includes: The same type of closing resistor friction monitoring data and closing resistor components are set to correspond one to one, and an alarm event is triggered for the associated value of the closing resistor component.

9. A closing resistance friction monitoring system, characterized in that: It includes a closing resistance model assembly display unit and a data processing unit; The closing resistance model assembly display unit is used to display the closing resistance model; Wherein, the closing resistor model assembly display unit is further configured to highlight one or more closing resistor components in the closing resistor model when the closing resistor friction force is abnormal, and display the closing resistor friction force monitoring data bound to the corresponding closing resistor component; The data processing unit is used for: Acquiring closing resistance friction force monitoring data according to the data code, and classifying the closing resistance friction force monitoring data according to the data code; The data processing unit is also configured to bind the same type of closing resistor friction monitoring data and closing resistor components to determine whether the closing resistor friction monitoring data is abnormal. When the closing resistor friction monitoring data is abnormal, the closing resistor model assembly display unit highlights the corresponding closing resistor component and the closing resistor friction monitoring data.

10. The closing resistance friction force monitoring system according to claim 9, characterized in that: The data processing unit is configured as follows: If the closing resistance friction force monitoring data is greater than an upper limit value, or the closing resistance friction force monitoring data is less than a lower limit value, it is determined that the closing resistance friction force monitoring data is abnormal.

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