CN115993508A - Method and device for simulating arc generation of contact ignition of bow net - Google Patents
Method and device for simulating arc generation of contact ignition of bow net Download PDFInfo
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Abstract
The application provides a method and a device for simulating occurrence of an arc of contact ignition of an arch net, wherein the method comprises the following steps: receiving a generation signal through a control module, wherein the generation signal is used for indicating a power conversion module to output working current to a power supply cable, and the power conversion module is connected with a power supply device; the working current is conveyed to an arcing generating module through a power supply cable; and generating voltage with a preset magnitude in a preset time through the arcing generating module so as to simulate the arcing. Solves the problem that the occurrence of ultraviolet light wave simulation arcing generated by a lighter has more defects when the arc net contact arcing detection is carried out in the urban rail transit field in the related technology.
Description
Technical Field
The application relates to the technical field of bow net contact ignition arc detection, in particular to a method and a device for simulating bow net contact ignition arc generation.
Background
In the field of rail transportation, arcing generated between a pantograph and a contact line can cause adverse effects on the flow taking quality of a metro vehicle, and greatly affect the service performance and the safety performance of a contact net in a power supply system, and meanwhile, the effective service lives of the pantograph and the contact net are shortened. The method has important significance in detecting and researching the hazard and preventive measures of the arc burning of the arch net.
In the test process, the generation of arcing needs to be simulated firstly, and the common practice is to use ultraviolet light waves emitted by a lighter to simulate the generation of arcing, and the method has a plurality of defects and disadvantages:
1. the principle of ultraviolet light emitted by the lighter and arc firing of the bow net are essentially different, and the actual working condition cannot be simulated most truly;
2. the ultraviolet light emitted by the lighter has limited transmission distance, which is not beneficial to evaluating the detection efficiency of the arcing detection module;
3. the lighter is a fire source with the quality which cannot be ensured, and has fire safety hidden trouble;
4. the working condition of the pantograph installation area is complex, and the scheme of using the lighter to simulate arcing requires an operator to hold the lighter in a simulated arcing position (namely, the contact point of the pantograph and the overhead contact system). The operator enters a pantograph installation area to work, so that the risk of collision injury exists;
5. the problem that the test environment cannot work fire or the application flow is complex exists, so that the test cannot be performed. .
Aiming at the problems that in the related art, when arc net contact ignition arc detection is carried out in the urban rail transit field, more defects exist in the generation of ultraviolet light wave simulation arcing emitted by a lighter, and no effective solution exists at present.
Disclosure of Invention
The embodiment of the application provides a method and a device for simulating arc occurrence of bow net contact ignition, which at least solve the problem that a plurality of defects exist in the arc occurrence simulation by using ultraviolet light waves emitted by a lighter when the arc detection is carried out in the field of urban rail transit in the related art.
According to one embodiment of the present application, there is provided a method of simulating bow net contact ignition arc generation, comprising: receiving a generation signal through a control module, wherein the generation signal is used for indicating a power supply conversion module to output working current to a power supply cable, and the power supply conversion module is connected with a power supply device; the working current is conveyed to an arcing generating module through the power supply cable; and generating voltage with preset magnitude in preset time through the arcing generating module so as to simulate the arcing.
Optionally, the generating, by the arcing generating module, a voltage with a preset magnitude in a preset time to simulate the occurrence of arcing includes: and continuously generating a voltage of 3-7 kv within 3-8s through the arcing generating module so as to simulate the arcing.
Optionally, after generating the voltage of the preset magnitude for the preset time by the arcing generating module, the method further includes: and sending a stop signal to the power conversion module through the control module, wherein the stop signal is used for indicating the power conversion module to stop outputting working current to the power supply cable.
Optionally, the receiving, by the control module, the occurrence signal includes: and receiving the generation signal sent by the infrared controller through the control module, wherein the control module adopts a low-power consumption IR type IO control mode.
There is also provided, in accordance with another embodiment of the present application, an apparatus for simulating the occurrence of an arching net contact ignition arc, comprising: a control module, mounted on the pantograph, configured to receive the generation signal; the power supply conversion module is respectively connected with the control module and the power supply device and is configured to output working current to the power supply cable according to the generation signal; a power supply cable configured to deliver the operating current to an arcing generating module; the arcing generating module is arranged on the cantilever beam below the pantograph carbon slide plate and is configured to generate voltage with a preset magnitude in preset time so as to simulate the arcing.
Optionally, the arcing generating module is further configured to: a voltage of 3kv to 7kv was continuously generated for 3-8s to simulate the occurrence of the arcing.
Optionally, the control module is further configured to: and when the time for continuously outputting the working current to the power supply cable by the power supply conversion module reaches a preset threshold, sending a stop signal to the power supply conversion module, wherein the stop signal is used for indicating the power supply conversion module to stop outputting the working current to the power supply cable.
Optionally, the apparatus further includes: an infrared controller configured to transmit the generation signal.
Through the embodiment of the application, a method for simulating occurrence of an arc of contact ignition of an arch net is provided, which comprises the following steps: receiving a generation signal through a control module, wherein the generation signal is used for indicating a power conversion module to output working current to a power supply cable, and the power conversion module is connected with a power supply device; the working current is conveyed to an arcing generating module through a power supply cable; and generating voltage with a preset magnitude in a preset time through the arcing generating module so as to simulate the arcing. The method solves the problem that the ultraviolet light wave emitted by the lighter is used for simulating the occurrence of arcing when the arc is detected in the urban rail transit field in the related art, and the arcing occurrence principle used by the method for simulating the occurrence of the arc is consistent with the arcing actual occurrence principle, so that the experimental requirements for simulating the actual working conditions can be met to the greatest extent.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a flow chart of an alternative method of simulating bow net contact ignition arc generation in accordance with embodiments of the present application;
fig. 2 is a schematic structural view of an alternative device for simulating bow net contact ignition arc generation in accordance with embodiments of the present application.
Description of the reference numerals
1, a control module; 2, a power supply conversion module; 3, supplying power to the cable; 4, an arcing generating module; and 5, an infrared controller.
Detailed Description
The present application will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
The embodiment of the application provides a method for simulating arc occurrence of contact ignition of an arch net. FIG. 1 is a flow chart of an alternative method of simulating bow net contact ignition arc generation, as shown in FIG. 1, according to an embodiment of the present application, the method comprising:
step S102, receiving a generation signal through a control module, wherein the generation signal is used for indicating a power supply conversion module to output working current to a power supply cable, and the power supply conversion module is connected with a power supply device;
step S104, working current is conveyed to an arcing generating module through a power supply cable;
step S106, generating voltage with preset magnitude in preset time through the arcing generating module so as to simulate the arcing.
Optionally, the step S106 may be implemented by the following steps: the arcing generation module continuously generates 3-7 kv voltage within 3-8s to simulate the occurrence of arcing.
Optionally, after generating the voltage of the preset magnitude for the preset time by the arcing generating module, the method further includes: and sending a stop signal to the power conversion module through the control module, wherein the stop signal is used for indicating the power conversion module to stop outputting working current to the power supply cable.
Optionally, the receiving, by the control module, the occurrence signal includes: and receiving the generation signal sent by the infrared controller through the control module, wherein the control module adopts a low-power consumption IR type IO control mode.
The technical problem to be solved by the application is to provide simulation equipment for the arc contact ignition of the bow net of the metro vehicle, and the equipment can truly simulate the actual working condition of the arc contact ignition of the bow net, so that a test link is convenient to detect the arc ignition condition and evaluate the performance of a detection device.
In order to solve the technical problem, the technical scheme provided by the application is that a stable 110V direct current power supply is adopted to output 3000V-7000V high voltage (preferably 7000V) external arcing generating module, a control module adopts a low-power consumption IR type IO control mode, the starting and stopping of the infrared remote control arcing generating module within the range of 10 meters can be realized, meanwhile, a protection circuit is arranged, and the protection circuit is automatically turned off after the protection circuit is continuously output at a high voltage end for 3-8s (preferably 5 s), so that risks and hidden dangers caused by false touch or misoperation are avoided.
The arcing generation principle used by the method for simulating the arc net contact arcing generation is consistent with the arcing actual generation principle, and the infrared remote controller is electrified after pressing the switch, so that a discharge module in the equipment works, and a high-voltage arcing of 3kv-7kv is generated at the transmitting end of the arcing generation module, so that the arcing generation mode and the arcing generation grade between the infrared remote controller and the actual arc net are consistent. If the remote controller is pressed for too long, a protection mechanism is excited so that the automatic closing and stopping function can meet the test requirement of simulating the actual working condition to the greatest extent; the remote control can be realized by an infrared remote control mode, the starting and stopping of equipment can be controlled at any time in an effective range, and the device has strong operability and convenience; the built-in protection circuit can be automatically turned off after a certain period of continuous operation, and risks and hidden dangers caused by false touch or false operation can be effectively prevented.
Fig. 2 is a schematic structural view of an alternative device for simulating bow net contact ignition arc generation in accordance with embodiments of the present application. There is also provided, in accordance with another embodiment of the present application, an apparatus for simulating the occurrence of an arching net contact ignition arc, comprising:
a control module 1, mounted on the pantograph, configured to receive the occurrence signal;
the power conversion module 2 is respectively connected with the control module and the power supply device and is configured to output working current to the power supply cable according to the generation signal;
a power supply cable 3 configured to deliver an operating current to the arcing generating module 4;
the arcing generating module 4 is installed on a cantilever beam below the pantograph carbon slide plate and is configured to generate a voltage with a preset magnitude in a preset time so as to simulate the arcing.
Optionally, the arcing generating module 4 is further configured to: a voltage of 3kv-7kv was continuously generated for 3-8s to simulate the occurrence of arcing.
Optionally, the control module 1 is further configured to: when the time for the power conversion module 2 to continuously output the working current to the power supply cable 3 reaches a preset threshold value, a stop signal is sent to the power conversion module 2, wherein the stop signal is used for indicating the power conversion module 2 to stop outputting the working current to the power supply cable 3.
Optionally, the apparatus further includes: an infrared controller 5 configured to emit a generation signal.
As shown in fig. 2, the arcing generating module 4 is mounted on a cantilever beam below a carbon sliding plate of a pantograph by using a plastic ribbon, the power supply cable 3 is fixed on an upper guide rod and a lower guide rod of the pantograph by using the ribbon, the power conversion module 2 and the control module 1 are mounted beside a composite insulator fixing frame, and the infrared controller 5 can be controlled and used by an operator within a range of 10 meters.
For example, when the arcing module needs to be started, the infrared controller 5 is triggered, the signal is received by the control module 1, and then the power conversion module 2 is controlled to work to output current so that the arcing module 4 works, when the arcing module works for 5 seconds, the control module 1 sends out a control command so that the power conversion module 2 stops working, and further the protection circuit prevents damage and harm to components caused by long-time operation.
Alternatively, in this embodiment, it will be understood by those skilled in the art that all or part of the steps in the methods of the above embodiments may be performed by a program for instructing a terminal device to execute the steps, where the program may be stored in a computer readable storage medium, and the storage medium may include: flash disk, read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application and are intended to be comprehended within the scope of the present application.
Claims (8)
1. A method of simulating the occurrence of an arching net contact ignition arc comprising:
receiving a generation signal through a control module, wherein the generation signal is used for indicating a power supply conversion module to output working current to a power supply cable, and the power supply conversion module is connected with a power supply device;
the working current is conveyed to an arcing generating module through the power supply cable;
and generating voltage with preset magnitude in preset time through the arcing generating module so as to simulate the arcing.
2. The method of claim 1, wherein generating, by the arcing generating module, a voltage of a preset magnitude for a preset time to simulate an occurrence of arcing, comprises:
and continuously generating a voltage of 3-7 kv within 3-8s through the arcing generating module so as to simulate the arcing.
3. The method of claim 1, wherein after generating a voltage of a preset magnitude for a preset time by the arcing generating module, the method further comprises:
and sending a stop signal to the power conversion module through the control module, wherein the stop signal is used for indicating the power conversion module to stop outputting working current to the power supply cable.
4. A method according to any one of claims 1 to 3, wherein the receiving, by the control module, the occurrence signal comprises:
and receiving the generation signal sent by the infrared controller through the control module, wherein the control module adopts a low-power consumption IR type IO control mode.
5. A device for simulating the occurrence of an arching net contact ignition arc, comprising:
a control module, mounted on the pantograph, configured to receive the generation signal;
the power supply conversion module is respectively connected with the control module and the power supply device and is configured to output working current to the power supply cable according to the generation signal;
a power supply cable configured to deliver the operating current to an arcing generating module;
the arcing generating module is arranged on the cantilever beam below the pantograph carbon slide plate and is configured to generate voltage with a preset magnitude in preset time so as to simulate the arcing.
6. The apparatus of claim 5, wherein the arcing generation module is further configured to:
a voltage of 3kv to 7kv was continuously generated for 3-8s to simulate the occurrence of the arcing.
7. The apparatus of claim 5, wherein the control module is further configured to:
and when the time for continuously outputting the working current to the power supply cable by the power supply conversion module reaches a preset threshold, sending a stop signal to the power supply conversion module, wherein the stop signal is used for indicating the power supply conversion module to stop outputting the working current to the power supply cable.
8. The apparatus according to any one of claims 5 to 7, further comprising:
an infrared controller configured to transmit the generation signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111210346.0A CN115993508A (en) | 2021-10-18 | 2021-10-18 | Method and device for simulating arc generation of contact ignition of bow net |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111210346.0A CN115993508A (en) | 2021-10-18 | 2021-10-18 | Method and device for simulating arc generation of contact ignition of bow net |
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| CN115993508A true CN115993508A (en) | 2023-04-21 |
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| CN206505131U (en) * | 2016-12-30 | 2017-09-19 | 西南交通大学 | A kind of bow net makes electrical contact with analogue experiment installation |
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| CN110646713A (en) * | 2019-09-02 | 2020-01-03 | 深圳供电局有限公司 | Fault arc simulation generating device and photovoltaic direct current system |
| CN213274888U (en) * | 2020-10-23 | 2021-05-25 | 南京天链交通轨道科技有限公司 | Pantograph simulation mechanism |
| CN112964825A (en) * | 2021-02-07 | 2021-06-15 | 国网江苏省电力有限公司电力科学研究院 | Fire source simulation device for fault arc ignition cable |
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2021
- 2021-10-18 CN CN202111210346.0A patent/CN115993508A/en active Pending
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|---|---|---|---|---|
| CN201846239U (en) * | 2010-09-07 | 2011-05-25 | 西南交通大学 | Bow net arc testing power supply device |
| CN102331536A (en) * | 2011-06-23 | 2012-01-25 | 上海市安全生产科学研究所 | Fault electric arc controllable simulative generation device |
| CN203216825U (en) * | 2013-05-07 | 2013-09-25 | 深圳大学 | Device for simulating arc erosion of contact resistance |
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