CN114284085A - Wireless remote control non-power-off transmission switching-on and switching-off device and control method - Google Patents

Wireless remote control non-power-off transmission switching-on and switching-off device and control method Download PDF

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CN114284085A
CN114284085A CN202111603227.1A CN202111603227A CN114284085A CN 114284085 A CN114284085 A CN 114284085A CN 202111603227 A CN202111603227 A CN 202111603227A CN 114284085 A CN114284085 A CN 114284085A
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switching
module
level signal
relay
remote control
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CN114284085B (en
Inventor
林炯
晏梦璇
陈浩林
吴朝花
梁德平
李海祥
何耀宇
黄昭
郑锡敏
肖英
于小桐
梁栩燊
唐国庆
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Guangdong Power Grid Co Ltd
Jiangmen Power Supply Bureau of Guangdong Power Grid Co Ltd
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Guangdong Power Grid Co Ltd
Jiangmen Power Supply Bureau of Guangdong Power Grid Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Abstract

The invention relates to the technical field of switching-on and switching-off control, and discloses a wireless remote control non-stop transmission switching-on and switching-off device and a control method.

Description

Wireless remote control non-power-off transmission switching-on and switching-off device and control method
Technical Field
The invention relates to the technical field of opening and closing control, in particular to a wireless remote control uninterrupted transmission opening and closing device and a control method.
Background
Along with the continuous improvement of power consumption quality requirement, the power failure time that the user required also is constantly dwindling, causes 10kV line switch of transformer substation to have a power failure to overhaul more and more difficult, from this, leads to 10kV line switch to reject the safe risk of moving increasing day by day. In order to discover and eliminate potential safety hazards of a tripping loop, a closing loop and a mechanism of a 10kV line switch of a transformer substation as early as possible and prevent the fault range from being enlarged due to the fact that the 10kV line switch fails to move, the 10kV line switch needs to be subjected to a non-power-off transmission test.
Aiming at the problem that a 10kV line protection device is arranged in a transformer substation of a 10kV high-voltage cabinet, in order to ensure the personal safety of a tester when the transmission of a non-stop switch is carried out, the currently adopted method is that the tester connects one box-type manual on-off switch with three switches which are about tens of meters long
Figure BDA0003432571010000011
The cable wires are connected, then the cable wires are led into a terminal row of the 10kV line protection device and are connected into a positive power supply public end and a corresponding tripping and closing terminal, a tester stands outside a 10kV high-voltage chamber door to manually press a switching-on/off button switch of the tester (in order to prevent the situation that the switch explodes suddenly in the transmission process and causes injury to the personnel, the personnel must operate outside the 10kV high-voltage chamber), and therefore the purpose of transmitting the switch without power failure is achieved.
However, in the above-mentioned uninterrupted switching transmission technology, the current transmission device adopts the method of leading out the secondary line of the opening and closing loop from the 10kV high-voltage chamber for remote operation, and since the 10kV high-voltage chamber is generally large, especially the 10kV high-voltage chamber of the 220kV substation, and the high-voltage cabinet in the middle is farthest to the doorway and has more than 50 meters, the secondary line is long, laying is inconvenient, and wiring is time-consuming; meanwhile, three secondary lines (a common line, a separating gate line and a closing gate line) are needed for the device which is arranged outside the 10kV high-voltage chamber at the terminal row of the protection device, the total length is 150 meters according to about 50 meters of each secondary line, and the needed secondary cable is long. The overall paying-off and taking-up are inconvenient; in the paying-off or taking-up process, the secondary wire is rubbed with the ground, so that the secondary cable sheath is easily abraded, the insulation of the secondary wire is reduced, and the direct current system is grounded in severe cases, so that the operation of the direct current system in the transformer substation is influenced; in addition, the cable may loose after long-term use, which results in unsuccessful switching on and off and other safety risks. In summary, the current uninterrupted switching transmission technology has low efficiency and poor stability.
Disclosure of Invention
The invention provides a wireless remote control uninterrupted power transmission switching-on and switching-off device and a control method, and solves the technical problems of low efficiency and poor stability of the existing uninterrupted power transmission technology.
In view of the above, the first aspect of the present invention provides a wireless remote control uninterruptible power transmission switching on/off device, including: the remote control module is wirelessly connected with the receiving module through a communication channel;
the remote control module is used for converting the first level signal into a second level signal according to a switching-on/off command input by a user in advance and also used for wirelessly transmitting the second level signal to the receiving module;
the receiving module is used for receiving the second level signal transmitted by the remote control module, generating a switching-on and switching-off driving instruction according to the second level signal and sending the switching-on and switching-off driving instruction to an external relay so as to enable the relay to execute the switching-on and switching-off driving instruction;
the self-checking module is used for detecting the communication channel between the remote control module and the receiving module so as to obtain a detection result, and the detection result is used for indicating whether the communication channel has a fault or not.
Preferably, the remote control module comprises a coding module, a processing module and a communication sending module;
the coding module is used for a user to edit a plurality of opening and closing instructions and is also used for sending the plurality of opening and closing instructions obtained by editing to the processing module;
the processing module is used for converting the first level signal into a second level signal according to the switching-on/off instruction and sending the second level signal to the communication sending module;
the communication sending module comprises a multi-channel communication sending interface and is used for receiving a plurality of second level signals and sending the second level signals to the receiving module.
Preferably, the receiving module comprises a communication receiving module, a signal processing module and a driving module;
the communication receiving module comprises a plurality of communication receiving interfaces which are in one-to-one correspondence with the plurality of communication interfaces, is used for receiving the second level signal and is also used for sending the second level signal to the signal processing module;
the signal processing module is used for filtering and amplifying the second level signal, generating a switching-on and switching-off driving instruction according to the second level signal and sending the switching-on and switching-off driving instruction to the driving module;
and the driving module is used for driving an external relay according to the opening and closing driving instruction, so that the relay executes the opening and closing driving instruction.
Preferably, the self-checking module is further configured to detect whether a contact of the relay is stuck when the relay is in a switching-off state, and generate a contact fault signal to send to the master station if the contact of the relay is detected to be stuck.
Preferably, the self-checking module is further configured to detect whether the relay executes the opening/closing drive instruction, so as to obtain an execution result.
In a second aspect, the invention further provides a control method of the wireless remote control uninterrupted transmission switching-on/off device, which comprises the following steps:
detecting a communication channel between a remote control module and a receiving module through a self-detection module to obtain a detection result, wherein the detection result is used for indicating whether the communication channel has a fault or not, and if the communication channel does not have the fault, executing the next step;
converting the first level signal into a second level signal through the remote control module according to a switching-on/off command input by a user in advance;
and generating a switching-on and switching-off driving instruction according to the second level signal through the receiving module, and sending the switching-on and switching-off driving instruction to an external relay so as to enable the relay to execute the switching-on and switching-off driving instruction.
Preferably, the method further comprises:
when the relay is in the opening state, whether the contact of the relay is adhered or not is detected through the self-checking module, and if the contact of the relay is adhered, a contact fault signal is generated and sent to the main station.
Preferably, the method further comprises:
and detecting whether the relay executes the opening and closing driving instruction or not through the self-checking module to obtain an execution result.
According to the technical scheme, the invention has the following advantages:
according to the invention, the remote control module converts the first level signal into the second level signal according to the switching-on and switching-off command input by a user in advance, the second level signal is wirelessly transmitted to the receiving module, and the receiving module generates the switching-on and switching-off driving command according to the second level signal, so that the relay executes the switching-on and switching-off driving command, thereby realizing the control of the switching-on and switching-off of the relay, simplifying the control program, avoiding the voltage interference caused by the line length, improving the working efficiency and reliability, and meanwhile, detecting the communication channel between the remote control module and the receiving module through the self-checking module to determine whether the communication channel has a fault, and improving the reliability of communication control.
Drawings
Fig. 1 is a schematic structural diagram of a wireless remote control uninterruptible transmission switching-on/off device provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of a remote control module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a receiving module according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a wireless remote control 10kV uninterrupted transmission switching-on and switching-off protection device provided by the embodiment of the invention;
fig. 5 is a flowchart of a control method of a wireless remote-control uninterruptible power transmission switching-on/off device according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
For easy understanding, please refer to fig. 1, the invention provides a wireless remote control non-power-off transmission switching-on and switching-off device, comprising: the system comprises a remote control module 100, a receiving module 200 and a self-checking module 300, wherein the remote control module 100 is wirelessly connected with the receiving module 200 through a communication channel;
the remote control module 100 is configured to convert the first level signal into a second level signal according to a switching-on/off instruction input by a user in advance, and is further configured to wirelessly send the second level signal to the receiving module 200.
In an embodiment, when the switching-off or switching-on button is pressed by the remote control module 100, the low level is converted into the high level for switching-off or switching-on, and then the high level signal is sent to the receiving module 200, and when the switching-off or switching-on lamp of the remote control module 100 flashes, the switching-off or switching-on signal is proved to be sent.
The receiving module 200 is configured to receive a second level signal transmitted by the remote control module 100, generate a switching-on/off driving instruction according to the second level signal, and send the switching-on/off driving instruction to an external relay, so that the relay executes the switching-on/off driving instruction;
the self-test module 300 is used for testing a communication channel between the remote control module 100 and the receiving module 200, so as to obtain a test result, and the test result is used for indicating whether the communication channel has a fault.
The embodiment provides a wireless remote control power-uninterrupted transmission divide-shut brake device, divide-shut brake instruction according to user's input in advance through the remote control module, convert first level signal into the second level signal, with the wireless transmission of second level signal to receiving module, generate divide-shut brake drive instruction according to the second level signal through receiving module, so that the relay carries out divide-shut brake drive instruction, thereby realize controlling the divide-shut brake of relay, control procedure has been simplified, avoid causing voltage interference because of the circuit length, work efficiency and reliability are improved, simultaneously, still detect the communication channel between remote control module and the receiving module through the self-checking module, with confirm whether communication channel has the trouble, communication control's reliability has been improved again.
In one embodiment, as shown in fig. 2, the remote control module includes an encoding module 101, a processing module 102, and a communication transmission module 103;
the coding module 101 is used for a user to edit a plurality of switching-on/off instructions and is also used for sending the plurality of switching-on/off instructions obtained by editing to the processing module 102;
the processing module 102 is configured to convert the first level signal into a second level signal according to the switching-on/off instruction, and is further configured to send the second level signal to the communication sending module 103;
the first level signal may be a low level, and the second level signal may be a high level.
The communication sending module 103 includes a multi-channel communication sending interface, and is configured to receive a plurality of second level signals and send the second level signals to the receiving module.
It can be understood that the communication transmission module 103 in this embodiment includes a multiplex communication transmission interface, and can separately multiplex and transmit a plurality of second level signals, thereby improving the signal driving efficiency.
In a specific embodiment, as shown in fig. 3, the receiving module includes a communication receiving module 201, a signal processing module 202, and a driving module 203;
the communication receiving module 201 includes multiple communication receiving interfaces corresponding to the multiple communication interfaces one to one, and is configured to receive the second level signal and send the second level signal to the signal processing module 202;
the signal processing module 202 is configured to filter and amplify the second level signal, generate a switching-on/off driving instruction according to the second level signal, and send the switching-on/off driving instruction to the driving module 203;
the driving module 203 is configured to drive an external relay according to the switching-on/off driving instruction, so that the relay executes the switching-on/off driving instruction.
In one example, the receiving module receives multiple second level signals through the multiple communication receiving interfaces, so that multiple second level signals can be independently processed to drive multiple relays to execute corresponding instructions, for example, a switching-off instruction and a switching-on instruction corresponding to the relay K1 and the relay K2 respectively are obtained, the relay K1 can be driven to switch on a switching-off contact, and the relay K2 can be driven to switch on a switching-on contact.
In one embodiment, the self-checking module is further configured to detect whether the contact of the relay is stuck when the relay is in the open state, and generate a contact fault signal to be sent to the master station if the contact of the relay is detected to be stuck.
It can be understood that the safety factor of the control loop of the relay can be improved through the self-checking module so as to improve the reliability of power supply.
In a specific embodiment, the self-checking module is further configured to detect whether the relay executes the opening/closing driving instruction, so as to obtain an execution result.
The execution result can be non-execution and execution completion, and when the execution result is non-execution, the relay is indicated to have a fault.
The method for realizing wireless remote control 10kV protection uninterrupted power transmission switching on and off by combining the wireless remote control uninterrupted power transmission switching on and off device provided by the embodiment comprises the following steps:
1) as shown in fig. 4, the schematic diagram is a schematic diagram of a wireless remote control 10kV protection non-stop power transmission switching-on and switching-off structure, when the confirmation switch is at the switching-on position, the reclosing lamp of the protection device is on, and secondary wiring is performed according to the wiring diagram of the protection device:
2) starting the remote control module and the receiving module, and connecting and pairing the remote control module and the receiving module;
3) detecting the matched communication channels through a self-checking module, and if the matched communication channels are detected successfully, flashing a lamp of the self-checking module;
4) the tester presses a switching-off button of the remote control module outside a 10kV high-voltage chamber, the receiving module drives the relay K1 after receiving a signal, the contact of the relay K1 is switched on, so that the 1D25 and the 1D64 are in short circuit, the simulation protection device starts tripping, after the switch is switched off, the protection device starts reclosing logic, and the switch is overlapped in a delayed manner, so that the uninterrupted transmission test is completed;
(5) when a tester presses a switching-off button of the remote control module, after the switch is switched off, and a switching-on signal of the switch is not heard in 3S, the switching-on button is manually pressed, the receiving module receives the signal and drives the relay K2, the contact of the relay K2 is switched on, so that the 1D25 and the 1D59 are in short circuit, the simulation protection device starts reclosing, and the switch is reclosed to ensure normal power supply;
(6) when a tester presses a switching-off button of the remote control module, after a switch is switched off, the protection does not start reclosing, and presses a switching-on button, the protection does not start switching on, at the moment, a possible switching-on loop has defects (such as a switching-on coil is burnt out, a switching mechanism has problems, and the like), and an emergency scheme is started immediately for processing.
(7) After the test is successful, the power supplies of the remote control module and the receiving module are turned off, and then the corresponding secondary wires are removed.
Through the process, the wireless remote control 10kV protection uninterrupted transmission opening and closing is realized, the power failure time is shortened, the working efficiency is improved, and the personal safety is also ensured.
The above is a detailed description of an embodiment of the wireless remote-control uninterruptible power transmission switching on/off device provided by the invention, and the following is a detailed description of an embodiment of a control method of the wireless remote-control uninterruptible power transmission switching on/off device provided by the invention.
Referring to fig. 5, the method for controlling the wireless remote-control uninterruptible power transmission switching-on/off device provided by the invention includes the following steps:
s1, detecting a communication channel between the remote control module and the receiving module through the self-checking module to obtain a detection result, wherein the detection result is used for indicating whether the communication channel has a fault or not, and if the communication channel does not have the fault, executing the next step;
s2, converting the first level signal into a second level signal through the remote control module according to a switching-on/off command input by a user in advance;
and S3, generating a switching-on and switching-off driving instruction according to the second level signal through the receiving module, and sending the switching-on and switching-off driving instruction to an external relay so that the relay executes the switching-on and switching-off driving instruction.
In one embodiment, the method further comprises:
when the relay is in the opening state, whether the contact of the relay is adhered or not is detected through the self-checking module, and if the contact of the relay is adhered, a contact fault signal is generated and sent to the main station.
In one embodiment, the method further comprises:
whether the relay executes the opening and closing driving instruction is detected through the self-checking module, and an execution result is obtained.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the method described above may refer to the corresponding process in the foregoing device embodiment, and is not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, 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 invention 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 above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will 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 of the embodiments of the present invention.

Claims (8)

1. The utility model provides a wireless remote control does not have a power failure transmission divide-shut brake device which characterized in that includes: the remote control module is wirelessly connected with the receiving module through a communication channel;
the remote control module is used for converting the first level signal into a second level signal according to a switching-on/off command input by a user in advance and also used for wirelessly transmitting the second level signal to the receiving module;
the receiving module is used for receiving the second level signal transmitted by the remote control module, generating a switching-on and switching-off driving instruction according to the second level signal and sending the switching-on and switching-off driving instruction to an external relay so as to enable the relay to execute the switching-on and switching-off driving instruction;
the self-checking module is used for detecting the communication channel between the remote control module and the receiving module so as to obtain a detection result, and the detection result is used for indicating whether the communication channel has a fault or not.
2. The wireless remote-control uninterrupted power transmission switching-on and switching-off device according to claim 1, wherein the remote control module comprises a coding module, a processing module and a communication sending module;
the coding module is used for a user to edit a plurality of opening and closing instructions and is also used for sending the plurality of opening and closing instructions obtained by editing to the processing module;
the processing module is used for converting the first level signal into a second level signal according to the switching-on/off instruction and sending the second level signal to the communication sending module;
the communication sending module comprises a multi-channel communication sending interface and is used for receiving a plurality of second level signals and sending the second level signals to the receiving module.
3. The wireless remote-control power-uninterrupted transmission switching-on/off device according to claim 2, wherein the receiving module comprises a communication receiving module, a signal processing module and a driving module;
the communication receiving module comprises a plurality of communication receiving interfaces which are in one-to-one correspondence with the plurality of communication interfaces, is used for receiving the second level signal and is also used for sending the second level signal to the signal processing module;
the signal processing module is used for filtering and amplifying the second level signal, generating a switching-on and switching-off driving instruction according to the second level signal and sending the switching-on and switching-off driving instruction to the driving module;
and the driving module is used for driving an external relay according to the opening and closing driving instruction, so that the relay executes the opening and closing driving instruction.
4. The wireless remote-control uninterruptible-power-transmission switching-on/off device according to claim 1, wherein the self-checking module is further configured to detect whether the contacts of the relay are stuck when the relay is in a switching-off state, and generate a contact fault signal to be sent to the master station if the contacts of the relay are detected to be stuck.
5. The wireless remote-control uninterruptible-power-transmission switching-on/off device according to claim 1, wherein the self-checking module is further configured to detect whether the relay executes the switching-on/off driving command to obtain an execution result.
6. A control method of a wireless remote-control uninterrupted power transmission switching-on and switching-off device based on any one of claims 1 to 5 is characterized by comprising the following steps:
detecting a communication channel between a remote control module and a receiving module through a self-detection module to obtain a detection result, wherein the detection result is used for indicating whether the communication channel has a fault or not, and if the communication channel does not have the fault, executing the next step;
converting the first level signal into a second level signal through the remote control module according to a switching-on/off command input by a user in advance;
and generating a switching-on and switching-off driving instruction according to the second level signal through the receiving module, and sending the switching-on and switching-off driving instruction to an external relay so as to enable the relay to execute the switching-on and switching-off driving instruction.
7. The control method of the wireless remote-control uninterrupted power transmission switching-on and switching-off device according to claim 6, further comprising:
when the relay is in the opening state, whether the contact of the relay is adhered or not is detected through the self-checking module, and if the contact of the relay is adhered, a contact fault signal is generated and sent to the main station.
8. The control method of the wireless remote-control uninterrupted power transmission switching-on and switching-off device according to claim 6, further comprising:
and detecting whether the relay executes the opening and closing driving instruction or not through the self-checking module to obtain an execution result.
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CN114879031A (en) * 2022-07-11 2022-08-09 广东电网有限责任公司佛山供电局 Method and related device for verifying remote control function of distribution network automatic switch in real time

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CN101211497A (en) * 2006-12-27 2008-07-02 财团法人资讯工业策进会 Control circuit for checking loop state
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