CN113706962A - Cable fault heating simulation training system and control method and equipment thereof - Google Patents
Cable fault heating simulation training system and control method and equipment thereof Download PDFInfo
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- G09B9/00—Simulators for teaching or training purposes
Abstract
The application relates to a cable fault heating simulation training system and a control method and equipment thereof, wherein the cable fault heating simulation training system is provided with heating units at different positions of a cable respectively, one or more heating units at different positions are controlled to work by a processor, operating parameters and thermal imaging images of the cable are acquired by a data acquisition unit, and the cable fault occurrence position acquired by a student is compared with the installation position of the working heating unit by the processor; the system can provide a student with a systematized and instant fault simulation site by simulating different faults of the cable through the cross interconnection cable fault simulation unit, the student can automatically judge whether a fault occurs according to the site detection condition and determine the fault occurrence position, so that the professional operation capacity of the student can be detected and improved, and the problems that the fault type and the fault position cannot be changed, diversified faults of the cable cannot be trained and the training quality is low in the conventional cable fault training are solved.
Description
Technical Field
The application relates to the technical field of cables, in particular to a cable fault heating simulation training system and a control method and equipment thereof.
Background
With the rapid development of social economy, the power grid is more and more complex, and the requirement on the power supply reliability of power grid equipment is higher and higher. In order to improve the reliable operation of the power supply system, operation and maintenance personnel are required to find hidden dangers such as heating existing in the operation of the power grid equipment in time, and professional skills for the operation and maintenance personnel to find hidden dangers and deal with the hidden dangers in time are urgently needed.
At present, the heat generation of a high-voltage cable line on an actual power grid site generally occurs at a cable terminal position, and is often solved and processed easily, so that the heat generation is difficult to provide for the centralized actual operation opportunity of personnel needing to learn. The existing cable fault training base is provided with cables and destructive manufacturing faults, the types and the positions of the faults cannot be changed, and the diversification of field faults is difficult to achieve.
Disclosure of Invention
The embodiment of the application provides a cable fault heating simulation training system and a control method and equipment thereof, which are used for solving the technical problems that the fault type and the fault position cannot be changed, diversified faults of a cable cannot be trained and the training quality is low in the conventional cable fault training.
In order to achieve the above object, the embodiments of the present application provide the following technical solutions:
a cable fault heating simulation training system, comprising: the fault simulation system comprises a processor, a heating fault simulation unit and a cross interconnection cable fault simulation unit, wherein the heating fault simulation unit and the cross interconnection cable fault simulation unit are connected with the processor, the heating fault simulation unit comprises a cable, a data acquisition unit and a heating unit which are connected with the processor, the cable is provided with a wire clamp, a stress cone, a tail pipe and a ground wire clamp, the stress cone, the tail pipe and the ground wire clamp are all provided with the heating unit, and the cross interconnection cable fault simulation unit is connected with the cable;
the data acquisition unit is used for acquiring the operating parameters and the thermal imaging images of the cable in real time and transmitting the acquired operating parameters and the thermal imaging images to the processor;
the processor is used for controlling the operation of one or more heating units on the cable and comparing the cable fault occurrence position obtained by the student with the cable installation position of the working heating unit;
the cross interconnection cable fault simulation unit is used for simulating the occurrence of low-resistance fault, high-resistance fault or no fault of the cable;
wherein the operating parameters include current, voltage, and power.
Preferably, the processor comprises a control subunit, an instruction input unit and a comparison output subunit;
the control subunit is used for controlling the operation of one or more heating units on the cable;
the instruction input unit is used for analyzing the thermal image acquired in real time by a student by adopting image color and hot spot tracking to obtain a cable fault occurrence position and inputting the cable fault occurrence position to the comparison output subunit;
and the comparison output subunit is used for comparing the cable installation position where the heating unit controlled by the control subunit works with the cable fault occurrence position obtained by the instruction input unit to obtain a fault judgment result.
Preferably, the data acquisition unit acquires the operating parameters of the cable in real time through the electric energy data acquisition element; and acquiring a thermal image of the cable in real time through an infrared thermal imager.
Preferably, the cross-connect cable fault simulation unit includes at least two cross-connect boxes and a fault occurrence module connected to each of the cross-connect boxes; the fault generation module is also connected with the processor, and the processor is also used for controlling the operation of the fault generation module.
Preferably, a first end of the fault generation module is connected with the cross interconnection box, a second end of the fault generation module is grounded, and the fault generation module comprises a low-resistance fault submodule, a high-resistance fault submodule and a fault-free submodule which are connected in parallel;
the low-resistance fault submodule is used for simulating the low-resistance fault of the cable and comprises a first resistor, a first switch connected with the first resistor in series and a first capacitor connected with the first resistor in parallel;
the high-resistance fault submodule is used for simulating the high-resistance fault of the cable and comprises a second switch, and the second switch is connected with the low-resistance fault submodule in parallel;
the fault-free sub-module is used for simulating that the cable is not in fault, and comprises a third switch and a second capacitor connected with the third switch in series.
Preferably, the cross interconnection boxes are used for connecting interfaces of the cables, a three-phase circuit is arranged in each cross interconnection box, the three-phase circuits of two adjacent cross interconnection boxes are connected with each other through a same-phase circuit, different-phase circuits in the two adjacent cross interconnection boxes are connected with each other through cross connection, and each phase circuit in each cross interconnection box is connected with one fault generation module.
Preferably, the cable fault heating simulation training system comprises a first grounding box, and the three-phase circuit connection of two adjacent cross interconnection boxes is connected with the first grounding box.
The application also provides a control method of the cable fault heating simulation training system, which is based on the control method of the cable fault heating simulation training system and comprises the following steps:
receiving a heating instruction, and responding to the heating instruction to control a corresponding heating unit to work, wherein the heating unit is provided with a unique identification code, the identification code is bound with the heating unit at a cable installation position, and the heating instruction comprises the identification code;
acquiring operation parameters and thermal images of the cable in real time, and analyzing the operation parameters and the thermal images by adopting image color and hot spot tracking to obtain a cable fault occurrence position;
and comparing the cable fault occurrence position with the installation position of the corresponding heating unit in the heating instruction to obtain a comparison result.
Preferably, the control method of the cable fault heating simulation training system comprises the following steps: the method comprises the steps of receiving a fault trigger instruction, responding to the fault trigger instruction, controlling the switch of a corresponding fault generation module to be closed so as to enable a low-resistance fault submodule or a high-resistance fault submodule in the fault generation module to work, wherein the fault trigger instruction comprises a fault generation module code and a switch serial number, the fault generation module code corresponds to the fault generation module one by one, and the switch serial number is used for indicating a first switch corresponding to the low-resistance fault submodule or a second switch corresponding to the high-resistance fault submodule in the fault generation module.
The application also provides a cable fault heating simulation training device which comprises a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is used for executing the control method of the cable fault heating simulation training system according to the instructions in the program codes.
According to the technical scheme, the embodiment of the application has the following advantages: the cable fault heating simulation training system comprises a processor, a heating fault simulation unit and a cross interconnection cable fault simulation unit, wherein the heating fault simulation unit is connected with the processor and comprises a cable, a data acquisition unit and a heating unit which are connected with the processor; the data acquisition unit is used for acquiring the operating parameters and the thermal imaging images of the cable in real time and transmitting the acquired operating parameters and the thermal imaging images to the processor; the processor is used for controlling the operation of one or more heating units on the cable and analyzing and processing the operation parameters and the thermal image to obtain the fault occurrence position of the cable; the cross-connection cable fault simulation unit is used for simulating low-resistance fault, high-resistance fault or no fault of the cable. The cable fault heating simulation training system is characterized in that heating units are respectively arranged at different positions of a cable, one or more heating units at different positions are controlled to work through a processor, so that the cable has heating hidden danger due to local heating, operating parameters and thermal imaging images of the cable are collected through a data acquisition unit, and the cable fault occurrence position obtained by a student is compared with the installation position of the working heating unit through the processor; the system can provide a student with a systematized and instant fault simulation site by simulating different faults of the cable through the cross interconnection cable fault simulation unit, the student can automatically judge whether a fault occurs according to the site detection condition and determine the fault occurrence position, so that the professional operation capacity of the student can be detected and improved, and the technical problems that the fault type and the fault position cannot be changed, diversified faults of the cable cannot be trained and the training quality is low in the conventional cable fault training are solved.
According to the control method of the cable fault heating simulation training system, the operation parameters and the thermal imaging image of the cable after the heating instruction is responded are collected in real time, the cable fault occurrence position is obtained, the cable fault occurrence position is compared with the installation position of the heating unit corresponding to the heating instruction on the cable, the learning condition of a student is determined, the high resistance fault and the low resistance fault of the cable are simulated through the fault triggering instruction, diversified fault types are learned for the student, the professional operation capacity of the student can be detected and improved, and the overhaul diversity training of operation and maintenance personnel is achieved.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a block diagram of a cable fault heating simulation training system according to an embodiment of the present application;
FIG. 2 is a block diagram of a cable fault heating simulation training system according to another embodiment of the present application;
fig. 3 is a schematic diagram illustrating connection between two cross interconnection boxes of a cable fault heating simulation training system according to an embodiment of the present application;
fig. 4 is a schematic view of an installation structure of a cross-connection box and a fault generation module of the cable fault heating simulation training system according to an embodiment of the present application;
FIG. 5 is a schematic circuit diagram of a fault generation module in the cable fault heating simulation training system according to an embodiment of the present application;
fig. 6 is a flowchart illustrating steps of a control method of a cable fault heating simulation training system according to an embodiment of the present application.
Detailed Description
In order to make the objects, features and advantages of the present invention more apparent and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the embodiments described below are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" or "directly coupled" or "communicatively coupled" to each other as used herein and as illustrated or discussed herein are intended to be broadly construed, e.g., as fixed or removable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be connected through one or more interfaces, devices or units, or through some other coupling or communication link. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The embodiment of the application provides a cable fault heating simulation training system and a control method and equipment thereof, which are used for solving the technical problems that the fault type and the fault position cannot be changed, diversified faults of a cable cannot be trained and the training quality is low in the conventional cable fault training.
Fig. 1 is a schematic diagram of a framework of a cable fault heating simulation training system according to an embodiment of the present application.
As shown in fig. 1, an embodiment of the present application provides a cable fault heating simulation training system, which includes a processor 101, and a heating fault simulation unit and a cross-connection cable fault simulation unit connected to the processor 101, where the heating fault simulation unit includes a cable 103, a data acquisition unit 102, and a heating unit 104 connected to the processor 101, the cable 103 is provided with a wire clamp, a stress cone, a tail pipe, and a ground clamp, the wire clamp, the stress cone, the tail pipe, and the ground clamp are all provided with the heating unit 104, and the cross-connection cable fault simulation unit is connected to the cable 103;
the data acquisition unit 102 is used for acquiring the operating parameters and the thermal imaging images of the cable 103 in real time and transmitting the acquired operating parameters and the thermal imaging images to the processor 101;
the processor 101 is used for controlling the operation of one or more heating units 104 on the cable 103 and comparing the cable fault occurrence position obtained by the student with the cable installation position of the working heating unit;
the fault simulation unit of the cross interconnection cable is used for simulating the occurrence of low-resistance fault, high-resistance fault or no fault of the cable 101;
the operating parameters include, among others, current, voltage and power.
It should be noted that the processor 101 is configured to control one or more heating units 104 to operate, receive and display the operation parameters acquired by the data acquisition unit 102, and receive a comparison between the operation position of the heating unit 104 mounted on the cable and the cable fault occurrence position input by the user according to the operation parameters, so as to determine whether the cable fault occurrence position analyzed by the trainee is correct. The processor comprises but is not limited to a single-chip microcomputer (singlechip), a Programmable Logic Controller (PLC), an embedded processor (ARM), a Micro Control Unit (MCU), a Digital Signal Processor (DSP), a CPU, a microprocessor, a microcontroller and other control elements for the cable fault heating simulation training system.
In the embodiment of the application, the data acquisition unit 102 acquires the operating parameters of the cable 103 in real time through the electric energy data acquisition element; the thermographic image of the cable 103 is acquired in real time by an infrared thermal imager.
It should be noted that the electric energy data acquisition element may be an electric energy meter, and may also be a current transformer, a voltage transformer, or the like. An infrared thermal imager is used to detect the thermographic image of the cable 103. The infrared thermal imaging camera is an external device, and is usually held by a student. Due to the existence of blackbody radiation, electromagnetic wave radiation is carried out on any object according to different temperatures, and the part with the wavelength of 2.0-1000 microns is called thermal infrared. The thermal infrared imaging can reflect the temperature field on the surface of an object by imaging the object through the thermal infrared sensitive CCD. The infrared thermal imager can image the whole target in real time in a 'surface' mode, so that a student operator can preliminarily judge the heating condition and the fault part by the aid of image colors and hot spot tracking display functions displayed on a screen of the infrared thermal imager, and then follow-up analysis is performed, so that the problem is determined efficiently and accurately. In an embodiment, after the processor 101 controls the corresponding heating unit 104 to heat the cable 103, the trainee holds the infrared thermal imager to detect the infrared heat of the cable in a non-contact manner, and the infrared thermal imager automatically generates a thermal image and a temperature value, and displays the thermal image and the temperature value on the display. Through the cooperation infrared thermal imager to the detection of cable temperature, can help the student to know the actual field application of infrared thermal imager, train when actual scene sends the trouble, how short-term test fault point that generates heat.
In the embodiment of the present application, the cable 103 is preferably a cable simulating the actual power grid, and has the same size and structure. A clip, stress cone, tail tube and ground clip may be provided at the end of the cable 103 or elsewhere, respectively. The clamp is used for fixing metal accessories on the cable, and is usually made of iron or aluminum. The stress cone is generally applied to the end part or the joint of a cable, and is provided with a metal sheath, and an insulating tape is wrapped around the edge of the stress cone, so that a component of a transition conical surface is formed between the edge of the metal sheath and the surface of the winding-increasing insulation, and is used for improving the electric field distribution at the tail end of the metal sheath and reducing the electric field intensity at the edge of the metal sheath. The tail pipe is usually applied to the cable terminal, plays the cable end and receives the corruption and the backlog of building materials such as cement, makes things convenient for later maintenance and trade line etc. extension cable life. The grounding wire clamp mainly comprises a reinforced shell, a puncture blade, a sealing gasket, waterproof silicone grease, a high-strength bolt, a torque nut and a cable terminal cap sleeve. When the cable needs to be branched or connected, the branch line terminal of the cable 103 is inserted into the waterproof terminal cap sleeve, after the branch position of the main line is determined, the force matrix nut on the cable clamp is screwed by using a socket wrench, the contact blade can pierce through the cable insulating layer and contact with the conductor in the process, the sealing gasket ring presses the periphery of the pierced position of the cable, silicone grease in the shell overflows, when the torque reaches a set value, the nut torque mechanism falls off, the main line and the branch line are connected, and the waterproof performance and the electrical effect reach the parameters of standard requirements.
In the embodiment of the present application, each heating unit 104 corresponds to a unique identification code, and through the identification code, related information of the heating unit 104 can be traced, and when the heating unit 104 is installed on the cable 103, the installation position of the heating unit 104 and the identification code corresponding to the heating unit 104 are stored in an associated manner, that is, the processor 101 can know which position of the heating unit 104 is controlled to generate heat by knowing the identification code.
Note that the processor 101 controls the operation of the heating unit 104. Specifically, the cable fault heating simulation training system is implemented by inputting a heating instruction by an appointed user, wherein the heating instruction carries a corresponding identification code, that is, the processor 101 can definitely know which specific heating unit 104 is controlled to operate. The processor 101 may control the operation of the heating unit 104, and may control the operation of a plurality of heating units 104 simultaneously. When the heating unit 104 is operated, the heating unit 104 generates heat to generate heat, and when the operating environment temperature of the cable 103 is too high, a failure may occur. In this embodiment, the data acquisition unit 102 may monitor the operating parameters of the cable 103, and in fact, the data acquisition unit 102 is often installed on the cable 103 to acquire, for example, voltage data, current data, power data, and the like of the cable 103. The operating parameters of the cable 103 collected by the data collection unit 102 are sent to the processor 101. The processor 101 may be connected to an external display, or the processor itself may be integrated into a smart device, such as a laptop computer, which has a display screen, and the processor 101 displays the received operating parameters via the display screen for the user to view. The user subjectively judges and analyzes the current operation condition of the cable 103 according to the currently detected operation parameters and the thermal image, so that the professional of the user on the cable fault can be developed.
In the embodiment of the application, the cross-connection cable fault simulation unit is mainly arranged to enable the cable fault heating simulation training system to provide different fault types for students to learn.
The application provides a cable fault heating simulation training system includes: the system comprises a processor, a heating fault simulation unit and a cross interconnection cable fault simulation unit, wherein the heating fault simulation unit and the cross interconnection cable fault simulation unit are connected with the processor; the data acquisition unit is used for acquiring the operating parameters and the thermal imaging images of the cable in real time and transmitting the acquired operating parameters and the thermal imaging images to the processor; the processor is used for controlling the operation of one or more heating units on the cable and analyzing and processing the operation parameters and the thermal image to obtain the fault occurrence position of the cable; the cross-connection cable fault simulation unit is used for simulating low-resistance fault, high-resistance fault or no fault of the cable. The cable fault heating simulation training system is characterized in that heating units are respectively arranged at different positions of a cable, one or more heating units at different positions are controlled to work through a processor, so that the cable has heating hidden danger due to local heating, operating parameters and thermal imaging images of the cable are collected through a data acquisition unit, and the cable fault occurrence position obtained by a student is compared with the installation position of the working heating unit through the processor; the system can provide a student with a systematized and instant fault simulation site by simulating different faults of the cable through the cross interconnection cable fault simulation unit, the student can automatically judge whether a fault occurs according to the site detection condition and determine the fault occurrence position, so that the professional operation capacity of the student can be detected and improved, and the technical problems that the fault type and the fault position cannot be changed, diversified faults of the cable cannot be trained and the training quality is low in the conventional cable fault training are solved.
In one embodiment of the present application, the processor 101 includes a control subunit, an instruction input unit, and a comparison output subunit;
a control subunit for controlling the operation of one or more heating units 104 on the cable 103;
the instruction input unit is used for analyzing the real-time collected thermal imaging by the student by adopting image color and hot spot tracking to obtain a cable fault occurrence position and inputting the cable fault occurrence position to the comparison output subunit;
and the comparison output subunit is used for comparing the cable installation position of the heating unit 104 controlled by the control subunit to work with the cable fault occurrence position obtained by the instruction input unit to obtain a fault judgment result.
It should be noted that the comparison of the fault determination result in the output subunit refers to the training result of the trainee in determining the cable thermal fault, and if the cable installation position of the working heating unit 104 is consistent with the comparison of the cable fault occurrence position obtained by the instruction input unit, it indicates that the trainee is qualified; if the cable installation position of the working heating unit 104 is inconsistent with the cable fault occurrence position obtained by the instruction input unit, the student is unqualified. In this embodiment, the instruction input unit is mainly used for a user or a trainee to input information, and may be an input device such as a keyboard, a key, and a button to implement the function to be implemented by the instruction input unit.
Fig. 2 is a schematic frame diagram of a cable fault heating simulation training system according to another embodiment of the present application, fig. 3 is a schematic connection diagram between every two cross interconnection boxes of the cable fault heating simulation training system according to an embodiment of the present application, and fig. 4 is a schematic installation structure diagram of the cross interconnection box and a fault generation module of the cable fault heating simulation training system according to an embodiment of the present application.
As shown in fig. 2, in one embodiment of the present application, the cross-connect cable fault simulation unit includes at least two cross-connect boxes and a fault occurrence module 301 connected to each cross-connect box; the fault occurrence module 301 is also connected to the processor 101, and the processor 101 is also used to control the operation of the fault occurrence module 301.
As shown in fig. 3 and 4, the cross-connection boxes are used for connecting interfaces of cable intermediate connectors, a three-phase circuit is arranged in each cross-connection box, the three-phase circuits of two adjacent cross-connection boxes are connected with each other through a same-phase circuit, different-phase circuits in two adjacent cross-connection boxes are connected with each other through cross-connection, and each phase circuit in each cross-connection box is connected with one fault generation module 301.
It should be noted that, in the existing power grid training base, the types of faults and the positions where the faults occur are often fixed, so that training and learning of students are relatively limited, and training effects are difficult to achieve the same diversity as those of actual lines. In this embodiment, the cable fault heating simulation training system is provided with a plurality of fault generation modules 301 and at least two cross-connection boxes, and low-resistance faults and high-resistance faults of cables can be simulated through cross-connection cable fault simulation units of the fault generation modules and the cross-connection boxes, so that the cable training is diversified.
The connection relationship of the plurality of cross-connection boxes in the embodiment of the present application is shown in fig. 3, taking three cross-connection boxes as an example, the first cross-connection box includes three-phase circuits a1, B1 and C1, the second cross-connection box includes three-phase circuits a2, B2 and C2, and the third cross-connection box includes three-phase circuits A3, B3 and C3. The connection relationship among the three cross-connection boxes is as follows: the same-phase A1, A2 and A3 are connected in sequence, the same-phase B1, B2 and B3 are connected in sequence, and the same-phase C1, C2 and C3 are connected in sequence, namely the same-phase circuits of every two adjacent cross interconnection boxes are connected in a same-phase circuit. Next, the circuits of different phases in two adjacent cross-connection boxes are cross-connected, a1 is cross-connected with B2, B2 is cross-connected with C3, B1 is cross-connected with C2, C2 is cross-connected with A3, C1 is cross-connected with a2, and a2 is cross-connected with B3. The cross-connection between the different phase circuits in two adjacent cross-connection boxes is not exclusive, and may be, for example, a1 cross-connection with C2, B1 cross-connection with a2, and C1 cross-connection with B2.
As shown in fig. 4, in one embodiment of the present application, the cable fault heating simulation training system includes a first grounding box 302, and the three-phase circuit connections of two adjacent cross-connection boxes are connected to the first grounding box 302. Each phase circuit of each cross interconnection box is respectively connected with a fault generation module 301, the fault generation module 301 is installed on the phase A circuit of three cross interconnection boxes, or the fault generation module 301 can be installed on the phase B circuit, or the fault generation module 301 is installed on the phase C circuit, and one end of each cross interconnection box, which is connected with the three phase circuit of another adjacent cross interconnection box, is connected to a first grounding box 302. That is, for example, the a-phase circuit in the first cross connect box is connected to one end of the second cross connect box circuit to the first ground box 302. The first grounding box 302 is a cross-connect protection grounding box. While the free end of each phase of circuit in the first cross connect box, i.e. when no other adjacent cross connect box circuit is connected to it, the free end is connected to the second ground box 303, the second ground box 303 is a direct ground box.
Fig. 5 is a schematic circuit diagram of a fault generation module in a cable fault heating simulation training system according to an embodiment of the present application.
As shown in fig. 5, in one embodiment of the present application, a first end of a fault occurrence module 301 is connected to a cross-connect box, a second end of the fault occurrence module 302 is connected to ground, and the fault occurrence module 302 includes a low resistance fault sub-module, a high resistance fault sub-module, and a no fault sub-module connected in parallel;
the low-resistance fault submodule is used for simulating low-resistance fault of the cable and comprises a first resistor R1, a first switch K1 connected with the first resistor R1 in series and a first capacitor C1 connected with the first resistor R1 in parallel;
the high-resistance fault submodule is used for simulating a high-resistance fault of the cable and comprises a second switch K2, and the second switch K2 is connected with the low-resistance fault submodule in parallel;
the non-fault submodule is used for simulating that the cable is not in fault and comprises a third switch K3 and a second capacitor C2 connected in series with the third switch K3.
As shown in fig. 5, one end of the first resistor R1 is connected to one end of the first switch K1, the first capacitor C1 is connected in parallel to both ends of the first resistor R1, the other end of the first resistor R1 is grounded, one end of the second capacitor C2 is connected to one point of the third switch K3, the other end of the second capacitor C2 is grounded, the other end of the first switch K1, the other end of the second switch K2, and the other end of the third switch K3 are all connected to a corresponding one-phase circuit, and the first switch K1, the second switch K2, and the third switch K3 are all connected to the processor. The fault occurrence module 301 may be configured as a pluggable module, and thus may be connected to a corresponding one-phase circuit in a plugging manner. In fig. 5, the positions of reference numerals 5, 6, and 7 correspond to the positions where the fault generation module 301 is connected to each phase circuit, the reference numerals 8, 11, and 14 correspond to high-resistance fault sub-modules, the reference numerals 9, 12, and 15 correspond to low-resistance fault sub-modules, and the reference numerals 10, 13, and 16 correspond to non-fault sub-modules.
Example two:
fig. 6 is a flowchart illustrating steps of a control method of a cable fault heating simulation training system according to an embodiment of the present application.
As shown in fig. 6, the present application further provides a control method of a cable fault heating simulation training system, where the control method based on the cable fault heating simulation training system includes the following steps:
s1, receiving a heating instruction, responding to the heating instruction to control a corresponding heating unit to work, wherein the heating unit is provided with a unique identification code, the identification code is bound with the heating unit at a cable installation position, and the heating instruction contains the identification code.
It should be noted that the heating instruction may be actively input into the cable fault heating simulation training system by the user, and the cable fault heating simulation training system may select the heating unit to be heated during the process of generating the heating instruction. The input of the heating instruction can also set the working time of the heating unit and the like. And after receiving a heating instruction of a user, the processor selects the corresponding heating unit to control the heating unit to work according to the identification code, so that heat is generated.
And S2, acquiring the operation parameters and the thermal imaging images of the cable in real time, and analyzing the operation parameters and the thermal imaging images by adopting image color and hot spot tracking to obtain the fault occurrence position of the cable.
It should be noted that the data acquisition unit monitors the operation data of the cable and acquires the thermal image of the cable in real time, and the data acquisition unit sends the detected operation data and thermal image to the processor for displaying. And the user or the student performs autonomous judgment according to the displayed operating data and the thermal imaging image, and inputs the judged cable fault occurrence position into the cable fault heating simulation training system.
And S3, comparing the cable fault occurrence position with the installation position of the corresponding heating unit in the heating instruction to obtain a comparison result.
It should be noted that, the processor knows the installation position in advance according to the heating unit for controlling heating, that is, the installation position of the heating unit corresponding to the heating instruction, so that the comparison between the cable fault occurrence position and the installation position input by the trainee or the user can be obtained, and the learning condition of the trainee or the user can be verified.
The control method of the cable fault heating simulation training system comprises the following steps: the method comprises the steps of receiving a fault trigger instruction, responding to the fault trigger instruction, controlling the switch of a corresponding fault generation module to be closed so as to enable a low-resistance fault submodule or a high-resistance fault submodule in the fault generation module to work, wherein the fault trigger instruction comprises a fault generation module code and a switch serial number, the fault generation module code corresponds to the fault generation module one by one, and the switch serial number is used for indicating a first switch corresponding to the low-resistance fault submodule or a second switch corresponding to the high-resistance fault submodule in the fault generation module.
It should be noted that, a user or a student inputs a fault trigger instruction to the cable fault heating simulation training system, where the fault trigger instruction carries specific information for controlling which fault generation module 301 operates, and which sub-module in the fault generation module 301 operates. Because the fault generation module 301 includes a low-resistance fault submodule, a high-resistance fault submodule, and a non-fault submodule, when the low-resistance fault submodule is opened, it means that the low-resistance fault submodule is in a low-resistance state, when the high-resistance fault submodule is opened, it means that the circuit is in a high-resistance state, when the non-fault submodule is opened, it means that the circuit is in a normal state, and a fault is not generated by the fault generation module 301. Because the fault occurrence module 301 corresponds to the fault occurrence module code, and the low-resistance fault submodule, the high-resistance fault submodule and the non-fault submodule in the fault occurrence module 301 respectively have corresponding switch serial numbers, for example, the code of one fault occurrence module 301 is 111, the switch serial number of the low-resistance fault submodule is a, and the switch serial number of the high-resistance fault submodule is b, when the code corresponding to the fault trigger instruction is 111, it indicates that the fault occurrence module corresponding to the code is started, and the switch serial number of the fault trigger instruction is b, indicates that the switch of the high-resistance fault submodule is opened, so that the circuit is in a high-resistance state.
The application also provides a control method of the cable fault heating simulation training system, which obtains the cable fault occurrence position by collecting the operation parameters and the thermal imaging image of the cable after responding to the heating instruction in real time, compares the cable fault occurrence position with the installation position of the heating unit on the cable corresponding to the heating instruction, determines the learning condition of a student, simulates the high resistance fault and the low resistance fault of the cable through the fault trigger instruction, provides diversified fault type learning for the student, can detect and improve the professional operation capability of the student, and realizes the maintenance diversity training of operation and maintenance personnel.
Example three:
the application further provides a cable fault heating simulation training device, including processor and memory:
a memory for storing the program code and transmitting the program code to the processor;
and the processor is used for executing the control method of the cable fault heating simulation training system according to the instructions in the program codes.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A cable fault heating simulation training system, comprising: the fault simulation system comprises a processor, a heating fault simulation unit and a cross interconnection cable fault simulation unit, wherein the heating fault simulation unit and the cross interconnection cable fault simulation unit are connected with the processor, the heating fault simulation unit comprises a cable, a data acquisition unit and a heating unit which are connected with the processor, the cable is provided with a wire clamp, a stress cone, a tail pipe and a ground wire clamp, the stress cone, the tail pipe and the ground wire clamp are all provided with the heating unit, and the cross interconnection cable fault simulation unit is connected with the cable;
the data acquisition unit is used for acquiring the operating parameters and the thermal imaging images of the cable in real time and transmitting the acquired operating parameters and the thermal imaging images to the processor;
the processor is used for controlling the operation of one or more heating units on the cable and comparing the cable fault occurrence position obtained by the student with the cable installation position of the working heating unit;
the cross interconnection cable fault simulation unit is used for simulating the occurrence of low-resistance fault, high-resistance fault or no fault of the cable;
wherein the operating parameters include current, voltage, and power.
2. The cable fault fever simulation training system as defined in claim 1, wherein the processor comprises a control subunit, a command input unit and a comparison output subunit;
the control subunit is used for controlling the operation of one or more heating units on the cable;
the instruction input unit is used for analyzing the thermal image acquired in real time by a student by adopting image color and hot spot tracking to obtain a cable fault occurrence position and inputting the cable fault occurrence position to the comparison output subunit;
and the comparison output subunit is used for comparing the cable installation position where the heating unit controlled by the control subunit works with the cable fault occurrence position obtained by the instruction input unit to obtain a fault judgment result.
3. The cable fault heating simulation training system according to claim 1, wherein the data acquisition unit acquires the operating parameters of the cable in real time through an electric energy data acquisition element; and acquiring a thermal image of the cable in real time through an infrared thermal imager.
4. The cable fault fever simulation training system as defined in claim 1, wherein the cross-connect cable fault simulation unit comprises at least two cross-connect boxes and a fault occurrence module connected to each of the cross-connect boxes; the fault generation module is also connected with the processor, and the processor is also used for controlling the operation of the fault generation module.
5. The cable fault heating simulation training system according to claim 4, wherein a first end of the fault generation module is connected with the cross-connection box, a second end of the fault generation module is grounded, and the fault generation module comprises a low-resistance fault submodule, a high-resistance fault submodule and a non-fault submodule which are connected in parallel;
the low-resistance fault submodule is used for simulating the low-resistance fault of the cable and comprises a first resistor, a first switch connected with the first resistor in series and a first capacitor connected with the first resistor in parallel;
the high-resistance fault submodule is used for simulating the high-resistance fault of the cable and comprises a second switch, and the second switch is connected with the low-resistance fault submodule in parallel;
the fault-free sub-module is used for simulating that the cable is not in fault, and comprises a third switch and a second capacitor connected with the third switch in series.
6. The cable fault heating simulation training system according to claim 4, wherein the cross interconnection boxes are used for connecting interfaces of the cables, a three-phase circuit is arranged in each cross interconnection box, the three-phase circuits of two adjacent cross interconnection boxes are connected with each other through a same-phase circuit, different-phase circuits in two adjacent cross interconnection boxes are connected with each other through a cross, and each phase circuit in each cross interconnection box is connected with one fault generation module.
7. The cable fault heating simulation training system according to claim 4, comprising a first grounding box, wherein the three-phase circuit connections of two adjacent cross-connection boxes are connected with the first grounding box.
8. A control method of a cable fault fever simulation training system, which is based on any one of claims 1 to 7, and comprises the following steps:
receiving a heating instruction, and responding to the heating instruction to control a corresponding heating unit to work, wherein the heating unit is provided with a unique identification code, the identification code is bound with the heating unit at a cable installation position, and the heating instruction comprises the identification code;
acquiring operation parameters and thermal images of the cable in real time, and analyzing the operation parameters and the thermal images by adopting image color and hot spot tracking to obtain a cable fault occurrence position;
and comparing the cable fault occurrence position with the installation position of the corresponding heating unit in the heating instruction to obtain a comparison result.
9. The control method of the cable fault fever simulation training system as set forth in claim 8, comprising: the method comprises the steps of receiving a fault trigger instruction, responding to the fault trigger instruction, controlling the switch of a corresponding fault generation module to be closed so as to enable a low-resistance fault submodule or a high-resistance fault submodule in the fault generation module to work, wherein the fault trigger instruction comprises a fault generation module code and a switch serial number, the fault generation module code corresponds to the fault generation module one by one, and the switch serial number is used for indicating a first switch corresponding to the low-resistance fault submodule or a second switch corresponding to the high-resistance fault submodule in the fault generation module.
10. The cable fault heating simulation training equipment is characterized by comprising a processor and a memory;
the memory is used for storing program codes and transmitting the program codes to the processor;
the processor is configured to execute the control method of the cable fault fever simulation training system according to the instructions in the program code, according to claim 9.
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| CN202111032319.9A CN113706962A (en) | 2021-09-03 | 2021-09-03 | Cable fault heating simulation training system and control method and equipment thereof |
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