CN114221441A - Circuit protection method, device, equipment and storage medium - Google Patents

Circuit protection method, device, equipment and storage medium Download PDF

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Publication number
CN114221441A
CN114221441A CN202111533537.0A CN202111533537A CN114221441A CN 114221441 A CN114221441 A CN 114221441A CN 202111533537 A CN202111533537 A CN 202111533537A CN 114221441 A CN114221441 A CN 114221441A
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China
Prior art keywords
medium
change data
target
data
switch
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Granted
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CN202111533537.0A
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Chinese (zh)
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CN114221441B (en
Inventor
陈伟德
陈文彬
郭琳
徐大勇
李鸿文
魏可慰
洪敏�
郭旭东
王毕元
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Guangdong Power Grid Co Ltd
Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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Guangdong Power Grid Co Ltd
Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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Priority to CN202111533537.0A priority Critical patent/CN114221441B/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS 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
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS 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
    • Y04S40/00—Systems 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
    • Y04S40/12—Systems 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
    • Y—GENERAL 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS 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
    • Y04S40/00—Systems 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
    • Y04S40/12—Systems 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
    • Y04S40/124—Systems 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 wired telecommunication networks or data transmission busses

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Keying Circuit Devices (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The embodiment of the invention discloses a circuit protection method, a circuit protection device, circuit protection equipment and a storage medium. The method comprises the following steps: acquiring medium state data of each switching device in a target line in real time; under the condition that the medium state data of any target switch device is determined to be changed into the alarm state data range, medium change data of the target switch device are obtained; and under the condition that the medium change data are determined to be in the range of the isolation change data, performing switch isolation processing on the target line. The embodiment of the invention can improve the fault handling efficiency and the circuit safety in the circuit, reduce the loss caused by the switch fault and save the labor cost for circuit maintenance.

Description

Circuit protection method, device, equipment and storage medium
Technical Field
The embodiment of the invention relates to the technical field of electric power, in particular to a circuit protection method, a circuit protection device, circuit protection equipment and a storage medium.
Background
In power systems, switches suspended in a line may be used to control circuit opens, control current interruptions or flow to other circuits, and the like. Illustratively, the 110kV power distribution network topology is a radiation type, and double bus wiring can be adopted to improve power supply reliability. Fig. 1 is a schematic diagram of a double bus bar connection provided in the prior art. As shown in fig. 1, one of the double-bus lines is a working bus and the other is a standby bus, and they are operated in parallel by a switch breaker.
In the circuit operation, when the switch breaks down to cause the pressure of the insulating medium to be too low, if the switch hanging circuit still operates in a live mode, the circuit connecting equipment is likely to explode, great influence is caused on the equipment, and even the personal safety of field personnel is threatened. In the prior art, the density of the insulating medium in the switch can be detected, and when the detected density is lower than the alarm density value, a warning is given to inform the staff to take maintenance measures.
However, the method provided by the prior art needs the staff to check the station after the staff gets the alarm to confirm the power failure mode, so that the efficiency is low and the risk of delayed treatment exists. If the density of the insulating medium is lower than the alarm density value and is not processed in time, the circuit can be powered off comprehensively, and if the density of the insulating medium is further lower than the locking opening and closing density value, the opening and closing of the switch is locked, and the fault switch cannot be isolated in time manually, so that the fault range is expanded.
Disclosure of Invention
Embodiments of the present invention provide a circuit protection method, apparatus, device, and storage medium, so as to improve fault handling efficiency and circuit safety in a circuit, reduce loss caused by a switch fault, and save labor cost for circuit maintenance.
In a first aspect, an embodiment of the present invention provides a circuit protection method, including:
acquiring medium state data of each switching device in a target line in real time;
under the condition that the medium state data of any target switch device is determined to be changed into the alarm state data range, medium change data of the target switch device are obtained;
and under the condition that the medium change data are determined to be in the range of the isolation change data, performing switch isolation processing on the target line.
In a second aspect, an embodiment of the present invention further provides a circuit protection device, including:
the state acquisition module is used for acquiring medium state data of each switching device in a target line in real time;
the change acquisition module is used for acquiring the medium change data of any target switch device under the condition that the medium state data of the target switch device is determined to be changed into the alarm state data range;
and the switch isolation module is used for performing switch isolation processing on the target line under the condition that the medium change data is determined to be in the range of the isolation change data.
In a third aspect, an embodiment of the present invention further provides a computer device, where the computer device includes:
one or more processors;
storage means for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the circuit protection method provided by any embodiment of the present invention.
In a fourth aspect, an embodiment of the present invention further provides a computer storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the circuit protection method provided in any embodiment of the present invention.
According to the embodiment of the invention, the medium state data of each switch device in the target circuit is acquired in real time, the medium change data of the target switch device is acquired under the condition that the medium state data of any target switch device is determined to be changed into the alarm state data range, and the target circuit is subjected to switch isolation processing under the condition that the medium change data is determined to be in the isolation change data range, so that the state of the insulating medium in the switch is automatically monitored, and circuit protection measures are automatically taken according to the state and the state change condition of the insulating medium, so that the problems of low efficiency, fault range expansion risk and the like caused by manual switch fault handling in the prior art are avoided, the fault handling efficiency and the circuit safety in the circuit are improved, the loss caused by switch faults is reduced, and the manual cost for circuit maintenance is saved.
Drawings
Fig. 1 is a schematic diagram of a double bus bar connection provided in the prior art.
Fig. 2 is a flowchart of a circuit protection method according to an embodiment of the present invention.
Fig. 3 is a flowchart of a circuit protection method according to a second embodiment of the present invention.
Fig. 4 is a schematic flowchart of a circuit protection method according to a second embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a circuit protection device according to a third embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a computer device according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.
It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Example one
Fig. 2 is a flowchart of a circuit protection method according to an embodiment of the present invention, where the present embodiment is applicable to a situation where a fault switch is automatically isolated for circuit protection, and the method may be executed by a circuit protection device according to an embodiment of the present invention, where the device may be implemented by software and/or hardware, and may be generally integrated in a computer device. Accordingly, as shown in fig. 2, the method includes the following operations:
and S110, acquiring the medium state data of each switching device in the target line in real time.
The target line can be any line with a switching device hung thereon, and can be a power distribution network bus, for example. The switching device may be any device that relies on a medium to perform a switching function. The media status data may be data describing the status of media in the switchgear.
Correspondingly, the medium state data of each switching device in the target line can be acquired by monitoring the medium in each switching device in any form in real time in the same target line, and the real-time state of the medium in each switching device can be determined according to the medium state data, so that whether the medium state can cause the switching fault or not can be judged in real time. Optionally, the specific content of the media status data may be determined according to a monitoring form of the media, and this embodiment is not limited herein.
For example, switching devices based on sulfur hexafluoride gas as an insulating medium can be generally adopted in a power distribution network bus, density of the sulfur hexafluoride gas in each switching device can be measured in real time through density measurement devices, correspondingly obtained medium state data are medium density, pressure values of the sulfur hexafluoride gas stored in a switch can also be measured in real time through pressure measurement devices, and correspondingly obtained medium state data are medium pressure values.
S120, under the condition that the medium state data of any target switch device is determined to be changed into the alarm state data range, the medium change data of the target switch device is obtained.
Wherein the target switching device may be a switching device for which the media status data is within the alarm status data range. The alarm state data range may be a data value range formed by medium state data describing the medium state in the switchgear that has failed but has not caused the circuit failure. The medium change data may be data describing a state change situation of the medium in the target switching device.
Accordingly, the alarm state data range may be a predetermined value range based on empirical values in historical operation of the switchgear, and is not limited herein. If the medium state data of any target switch device in all the switch devices connected with the target line changes to be within the alarm state data range, it can be shown that the medium in the target switch device is abnormal due to the fault of the target switch device, and the fault of the target line and the circuit formed by the target line can be possibly caused, and the medium change data of the target switch device can be further obtained according to the change situation of the medium state in the target switch device.
For example, in the above-mentioned switchgear using sulfur hexafluoride gas as an insulating medium, if it is determined that the density or the pressure value of the medium acquired in real time in any target switchgear is lower than a preset alarm value, which may indicate that sulfur hexafluoride gas in the target switchgear leaks, the rate of decrease in the density or the pressure value of sulfur hexafluoride gas in the target switchgear may be further acquired as medium change data, that is, the rate of leakage of sulfur hexafluoride gas in the target switchgear may be described.
And S130, performing switch isolation processing on the target line under the condition that the medium change data is determined to be in the range of the isolation change data.
The isolation change data range may be a data value range formed by medium change data describing a medium state change condition when a medium state change rate in a target switch device is too large, so that an alarm notification cannot be timely performed before a circuit fault occurs and manual circuit maintenance is realized. The switch isolation process may be an operation of isolating any switching device in the target line, including but not limited to the target switching device, from the target line.
Accordingly, the isolation variation data range may be a value range predetermined according to an empirical value of a relationship between a medium state change rate in the switchgear and a maintenance efficiency of the manual circuit, and is not limited herein. If the switching change data of the target switching device is within the range of the isolation change data, it can be shown that the medium state in the target switching device changes too fast, so that the circuit fault cannot be timely reported and notified and the manual circuit maintenance is realized before the circuit fault occurs, and then the switching isolation processing can be automatically performed on the target circuit, so that the problem that the manual work cannot be timely processed after the target switching device breaks down and is still connected to the target circuit in live operation to cause the large-range fault of the circuit or even greater danger is avoided.
In an optional embodiment of the present invention, after the acquiring the medium change data of the target switching device, the method may further include: under the condition that the medium change data are determined not to be in the range of the isolated change data, generating alarm information according to the medium state data and the medium change data; and carrying out alarm processing according to the alarm information.
The alarm information may be information for providing the medium state and the change condition of the target switching device to the user. The alert process may be an operation of providing alert information to the user.
Correspondingly, if the medium change data of the target switch device is not in the range of the isolation change data, it can be shown that the medium state in the target switch device changes slowly, an alarm can be given and manual circuit maintenance can be realized, so that a more reasonable strategy is adopted to handle the fault of the target switch device through manual maintenance, alarm information can be generated according to the medium state data and the medium change data, alarm processing is carried out according to the alarm information, and a user can timely know the medium state and the change condition of the current target switch device and handle the fault in time.
The embodiment of the invention provides a circuit protection method, which can obtain the medium state data of each switch device in a target line in real time, acquiring medium change data of the target switching device in the case that it is determined that the medium state data of any one of the target switching devices is changed to be within the alarm state data range, and the switch isolation processing is carried out on the target circuit under the condition that the medium change data is determined to be in the range of the isolation change data, the state of the insulating medium in the switch is automatically monitored, and circuit protection measures are automatically taken according to the state and the state change condition of the insulating medium, so that the problems of low efficiency, fault range expansion risk and the like caused by manual switch fault handling in the prior art are solved, the fault handling efficiency and the circuit safety in the circuit are improved, the loss caused by switch faults is reduced, and the labor cost for circuit maintenance is saved.
Example two
Fig. 3 is a flowchart of a circuit protection method according to a second embodiment of the present invention. The embodiment of the present invention is embodied on the basis of the above-described embodiment, and in the embodiment of the present invention, a specific optional implementation manner for performing the switch isolation processing on the target line when it is determined that the medium change data is within the isolation change data range is given.
As shown in fig. 3, the method of the embodiment of the present invention specifically includes:
and S210, acquiring the medium state data of each switching device in the target line in real time.
And S220, judging whether the medium state data of any target switch device changes into the alarm state data range, if so, executing S230-S250, otherwise, continuing executing S210-S220 until determining that the medium state data of any target switch device changes into the alarm state data range.
And S230, acquiring medium change data of the target switch equipment.
S240, comparing the medium change data with a first rate threshold value.
Wherein the first rate threshold may be a maximum rate of change of the medium provided that the time required for the medium to change from the state described by the medium status data to the state causing the circuit failure is sufficient to ensure opening of the target switching device.
Accordingly, the first rate threshold may be a predetermined range of values based on empirical values in historical operation of the switchgear and is not limited herein. The medium change data may describe a rate of change of the medium state, and the magnitude relationship between the medium change data and the first rate threshold may be determined by comparing the medium change data with the first rate threshold, thereby determining a fault handling policy to which the rate of change of the medium state may match. If the media change data is less than or equal to the first rate threshold, it can be stated that the rate of change of media state is sufficiently small that the time required for the media to change from the current state described by the media state data to the state causing the circuit fault is sufficient to ensure that the target switching device is opened. If the media change data is greater than the first rate threshold, it may indicate that the media state change rate is greater, and the time required for the media to change from the current state described by the media state data to the state causing the circuit fault is shorter, failing to ensure that the target switching device is turned off.
In an optional embodiment of the present invention, before the comparing the medium change data with the first rate threshold, the method may further include: acquiring a first difference value between the medium state data and a state endpoint value; and acquiring a first ratio of the first difference to a first motor time, and determining the first ratio as the first speed threshold.
Wherein the state endpoint value may be a value of the medium state data corresponding to the medium changing to the final state causing the circuit failure. The first motor time may be a time required to ensure that the target switching device is turned off.
Accordingly, both the state endpoint value and the first operating time may be predetermined according to parameters and empirical values of the target switching device, and are not limited herein. A first difference between the medium status data and the status endpoint values is obtained, and a first ratio of the first difference to the first actuation time is obtained as a first rate threshold, which may represent a maximum rate of change of the medium on the premise that the time required for the medium to change from the state described by the medium status data to the state causing the circuit fault is sufficient to ensure that the target switching device is switched off.
And S250, under the condition that the medium change data is determined to be larger than the first rate threshold, disconnecting all the switch devices in the target line, and opening isolation disconnecting links of the target switch devices.
Accordingly, if the media change data is greater than the first rate threshold, it may indicate that the media state change rate is greater, and the time required for the media to change from the current state described by the media state data to the state causing the circuit fault is shorter, and it may not be ensured that the target switching device is turned off. Thus, all switching devices in the target line may be opened, and any one or more of the switching devices may be opened, the target line may be ensured to be opened. Further, the isolation switch of the target switching device may be opened to isolate the target switching device from the target line to ensure that it is no longer coupled to the target line.
In an optional embodiment of the present invention, after the comparing the medium change data with the first rate threshold, the method may further include: comparing the media change data to a second rate threshold if it is determined that the media change data is less than or equal to the first rate threshold; and under the condition that the medium change data is determined to be larger than the second rate threshold value, disconnecting the target switch device and opening an isolation disconnecting link of the target switch device.
Wherein the second rate threshold may be a maximum rate of change of the medium under the premise that a time required for the medium to change from the state described by the medium state data to the state causing the circuit failure is much longer than a time required for ensuring that the target switching device is turned off, and the second rate threshold is smaller than the first rate threshold.
Accordingly, the second rate threshold may be a predetermined range of values based on empirical values in historical operation of the switchgear, and is not limited herein. In the case that the medium change data is determined not to be greater than the first rate threshold, the medium change data may be further compared with a second rate threshold, and a magnitude relationship between the medium change data and the second rate threshold is determined, so as to determine a fault handling policy that the rate of the medium state change may match.
Further, if the medium change data is not greater than the first rate threshold and is greater than the second rate threshold, it may be stated that at the rate of change described by the medium change data, the time required for the medium to change from the current state described by the medium state data to the state causing the circuit fault may be used to ensure that the target switching device is turned off, and then the device that turns off the target switching device may be taken. Specifically, the target switching device may be turned off to disconnect the target line, and the isolation switch of the target switching device may be turned on to isolate the target switching device from the target line.
Optionally, if the medium change data is less than or equal to the second rate threshold, it may be determined that the medium change data is not within the range of the isolation change data, which may indicate that the medium state change rate is sufficiently small, and that the time required for the medium to change from the current state described by the medium state data to the state causing the circuit fault is much longer than the time required to ensure that the target switching device is turned off.
In an optional embodiment of the present invention, before the comparing the medium change data with the second rate threshold, the method may further include: acquiring a second difference between the medium state data and a state latching value; and acquiring a second ratio of the second difference to a second maneuvering time, and determining the second ratio as the second speed threshold.
The state locking value can be a numerical value of medium state data corresponding to the state that the medium changes to the state that the switching device is locked and switched off. The second maneuver time may be a time much greater than the time required to ensure opening of the target switching device.
Accordingly, the status lockout value and the second maneuver time may be predetermined according to parameters of the target switching device, empirical values, and user requirements, and are not limited herein. And acquiring a second difference between the medium state data and the state latching value, and acquiring a second ratio of the second difference to the second maneuvering time as a second rate threshold, where the second rate threshold may indicate that the time required for the medium to change from the state described by the medium state data to the state causing the circuit fault is far longer than the maximum change rate of the medium on the premise of ensuring that the time required for opening the target switching device is far longer.
In an optional embodiment of the present invention, after the disconnecting the target switching device, the method may further include: detecting the opening and closing position of the target switch device; and under the condition that the switching position is determined to be a switching-on position, all the switch devices in the target line are switched off.
The switching position may be a position where a switching device of the target switching device is located. The switching-on position may be a position where the switching-on/off of the target switching device is located when the target switching device is switched on.
Correspondingly, after the target switch device is disconnected, the opening and closing positions of the target switch device can be further checked, and if the opening and closing positions are determined to be the opening and closing positions, it can be shown that the target switch device is not successfully disconnected, and all switch devices in the target line can be disconnected, so that the target line is ensured to be disconnected.
For example, fig. 4 is a schematic flowchart of a circuit protection method according to a second embodiment of the present invention. In a specific example, as shown in fig. 4, in the above-mentioned switchgear using sulfur hexafluoride gas as an insulating medium, it is necessary to automatically implement circuit protection when sulfur hexafluoride gas in the switch leaks to a certain extent, and different strategies may be adopted according to the leakage rate of sulfur hexafluoride gas. Specifically, the pressure value of the sulfur hexafluoride gas of the switch can be obtained in real time, whether the pressure value is reduced to the alarm value or not is judged, and if not, the pressure value of the sulfur hexafluoride gas of the switch is continuously obtained in real time; if so, further acquiring the leakage rate of the sulfur hexafluoride, and comparing the leakage rate with a preset rate threshold value, wherein the rate threshold value V1 can be a ratio of an alarm value to 1 minute, that is, when the leakage rate is greater than V1, the pressure value of the sulfur hexafluoride gas is reduced to 0 within 1 minute; the speed threshold V2 may be a ratio of a difference between the alarm value and the locking value to 30 minutes, that is, when the leakage rate is greater than V2, the pressure value of the sulfur hexafluoride gas will drop to the locking value within 30 minutes, resulting in the switch being locked and switched.
Correspondingly, by comparing the leakage rate with the magnitude of V1, when the leakage rate is determined to be greater than V1, namely sulfur hexafluoride gas leaks rapidly, all switches on a bus hung by the fault switch can be directly disconnected, and isolating switches on two sides of the fault switch are automatically opened to isolate the fault switch from the bus. When the leakage rate is determined to be not greater than V1, the leakage rate can be further compared with the magnitude of V2, when the leakage rate is determined to be greater than V2, the fault switch can be disconnected, whether the switch is in the opening position or not is then detected, if yes, the disconnecting switches on the two sides of the fault switch can be directly and automatically opened to isolate the fault switch from the bus, otherwise, all switches on the bus on which the fault switch is hung can be disconnected first, and then the disconnecting switches on the two sides of the fault switch can be automatically opened to isolate the fault switch from the bus. When the leakage rate is determined to be not more than V2, namely the leakage of the sulfur hexafluoride gas is slow enough, the user can be warned, and the strategy of automatically turning off the switch is not adopted for the moment.
The embodiment of the invention provides a circuit protection method, which can obtain the medium state data of each switch device in a target line in real time, acquiring medium change data of the target switching device in the case that it is determined that the medium state data of any one of the target switching devices is changed to be within the alarm state data range, and the switch isolation processing is carried out on the target circuit under the condition that the medium change data is determined to be in the range of the isolation change data, the state of the insulating medium in the switch is automatically monitored, the circuit protection measures are automatically taken according to the state and the state change condition of the insulating medium, so that the problems of low efficiency, fault range expansion risk and the like caused by manual switch fault handling in the prior art are solved, the fault handling efficiency and the circuit safety in the circuit are improved, the loss caused by switch faults is reduced, and the labor cost for circuit maintenance is saved; furthermore, by means of partition coping of medium change data, automatic circuit protection strategies with different emergency degrees are adopted when the medium change rates in the switch are different, the fault range and cost consumption caused by switch faults are greatly reduced, and the practicability is further improved.
EXAMPLE III
Fig. 5 is a schematic structural diagram of a circuit protection device according to a third embodiment of the present invention, and as shown in fig. 5, the circuit protection device includes: a state acquisition module 310, a change acquisition module 320, and a switch isolation module 330.
The state obtaining module 310 is configured to obtain medium state data of each switching device in the target line in real time.
A change obtaining module 320, configured to obtain the medium change data of any target switch device when it is determined that the medium state data of the target switch device changes into the alarm state data range.
And the switch isolation module 330 is configured to perform switch isolation processing on the target line under the condition that it is determined that the medium change data is within the isolation change data range.
In an optional implementation manner of the embodiment of the present invention, the switch isolation module 330 may include: the first comparison sub-module is used for comparing the medium change data with a first rate threshold; and the first disconnection submodule is used for disconnecting all the switch equipment in the target line and opening an isolation disconnecting link of the target switch equipment under the condition that the medium change data is determined to be larger than the first rate threshold.
In an optional implementation manner of the embodiment of the present invention, the switch isolation module 330 may further include: the first threshold value obtaining sub-module is used for obtaining a first difference value between the medium state data and the state endpoint value; and acquiring a first ratio of the first difference to a first motor time, and determining the first ratio as the first speed threshold.
In an optional implementation manner of the embodiment of the present invention, the switch isolation module 330 may further include: the second comparison submodule is used for comparing the medium change data with a second speed threshold value under the condition that the medium change data are determined to be smaller than or equal to the first speed threshold value; wherein the second rate threshold is less than the first rate threshold; and the second disconnection submodule is used for disconnecting the target switch device and opening the isolation disconnecting link of the target switch device under the condition that the medium change data is determined to be larger than the second speed threshold.
In an optional implementation manner of the embodiment of the present invention, the second disconnection submodule may further be configured to: detecting an open-close position of the target switching device after the target switching device is disconnected; and under the condition that the switching position is determined to be a switching-on position, all the switch devices in the target line are switched off.
In an optional implementation manner of the embodiment of the present invention, the switch isolation module 330 may further include: a second threshold acquisition submodule for acquiring a second difference between the medium state data and the state lockout value; and acquiring a second ratio of the second difference to a second maneuvering time, and determining the second ratio as the second speed threshold.
In an optional implementation manner of the embodiment of the present invention, the apparatus may further include: the alarm processing module is used for generating alarm information according to the medium state data and the medium change data under the condition that the medium change data are determined not to be in the range of the isolated change data; and carrying out alarm processing according to the alarm information.
The device can execute the circuit protection method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects for executing the method.
The embodiment of the invention provides a circuit protection device, which can obtain the medium state data of each switch device in a target line in real time, acquiring medium change data of the target switching device in the case that it is determined that the medium state data of any one of the target switching devices is changed to be within the alarm state data range, and the switch isolation processing is carried out on the target circuit under the condition that the medium change data is determined to be in the range of the isolation change data, the state of the insulating medium in the switch is automatically monitored, and circuit protection measures are automatically taken according to the state and the state change condition of the insulating medium, so that the problems of low efficiency, fault range expansion risk and the like caused by manual switch fault handling in the prior art are solved, the fault handling efficiency and the circuit safety in the circuit are improved, the loss caused by switch faults is reduced, and the labor cost for circuit maintenance is saved.
Example four
Fig. 6 is a schematic structural diagram of a computer device according to a fourth embodiment of the present invention. FIG. 6 illustrates a block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present invention. The computer device 12 shown in FIG. 6 is only an example and should not bring any limitations to the functionality or scope of use of embodiments of the present invention.
As shown in FIG. 6, computer device 12 is in the form of a general purpose computing device. The components of computer device 12 may include, but are not limited to: one or more processors 16, a memory 28, and a bus 18 that connects the various system components (including the memory 28 and the processors 16).
Bus 18 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, micro-channel architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.
Computer device 12 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by computer device 12 and includes both volatile and nonvolatile media, removable and non-removable media.
The memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 6, and commonly referred to as a "hard drive"). Although not shown in FIG. 6, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
Computer device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), with one or more devices that enable a user to interact with computer device 12, and/or with any devices (e.g., network card, modem, etc.) that enable computer device 12 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 22. Also, computer device 12 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet) via network adapter 20. As shown, network adapter 20 communicates with the other modules of computer device 12 via bus 18. It should be appreciated that although not shown in FIG. 6, other hardware and/or software modules may be used in conjunction with computer device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
The processor 16 executes various functional applications and data processing by running the program stored in the memory 28, thereby implementing the circuit protection method provided by the embodiment of the present invention: acquiring medium state data of each switching device in a target line in real time; under the condition that the medium state data of any target switch device is determined to be changed into the alarm state data range, medium change data of the target switch device are obtained; and under the condition that the medium change data are determined to be in the range of the isolation change data, performing switch isolation processing on the target line.
EXAMPLE five
Fifth embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where when the computer program is executed by a processor, the computer program implements a circuit protection method provided in the fifth embodiment of the present invention: acquiring medium state data of each switching device in a target line in real time; under the condition that the medium state data of any target switch device is determined to be changed into the alarm state data range, medium change data of the target switch device are obtained; and under the condition that the medium change data are determined to be in the range of the isolation change data, performing switch isolation processing on the target line.
Any combination of one or more computer-readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or computer device. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A circuit protection method, comprising:
acquiring medium state data of each switching device in a target line in real time;
under the condition that the medium state data of any target switch device is determined to be changed into the alarm state data range, medium change data of the target switch device are obtained;
and under the condition that the medium change data are determined to be in the range of the isolation change data, performing switch isolation processing on the target line.
2. The method of claim 1, wherein the performing a switch isolation process on the target line if the media change data is determined to be within an isolation change data range comprises:
comparing the medium change data with a first rate threshold;
and under the condition that the medium change data is determined to be larger than the first rate threshold value, disconnecting all the switch devices in the target line and opening isolation disconnecting links of the target switch devices.
3. The method of claim 2, further comprising, prior to said comparing said media change data to a first rate threshold:
acquiring a first difference value between the medium state data and a state endpoint value;
and acquiring a first ratio of the first difference to a first motor time, and determining the first ratio as the first speed threshold.
4. The method of claim 2, further comprising, after said comparing said media change data to a first rate threshold:
comparing the media change data to a second rate threshold if it is determined that the media change data is less than or equal to the first rate threshold; wherein the second rate threshold is less than the first rate threshold;
and under the condition that the medium change data is determined to be larger than the second rate threshold value, disconnecting the target switch device and opening an isolation disconnecting link of the target switch device.
5. The method of claim 4, further comprising, after said opening said target switching device:
detecting the opening and closing position of the target switch device;
and under the condition that the switching position is determined to be a switching-on position, all the switch devices in the target line are switched off.
6. The method of claim 4, further comprising, prior to said comparing said media change data to a second rate threshold:
acquiring a second difference between the medium state data and a state latching value;
and acquiring a second ratio of the second difference to a second maneuvering time, and determining the second ratio as the second speed threshold.
7. The method of claim 1, further comprising, after said obtaining media change data for said target switching device:
under the condition that the medium change data are determined not to be in the range of the isolated change data, generating alarm information according to the medium state data and the medium change data;
and carrying out alarm processing according to the alarm information.
8. A circuit protection device, comprising:
the state acquisition module is used for acquiring medium state data of each switching device in a target line in real time;
the change acquisition module is used for acquiring the medium change data of any target switch device under the condition that the medium state data of the target switch device is determined to be changed into the alarm state data range;
and the switch isolation module is used for performing switch isolation processing on the target line under the condition that the medium change data is determined to be in the range of the isolation change data.
9. A computer device, characterized in that the computer device comprises:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the circuit protection method of any one of claims 1-7.
10. A computer storage medium on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the circuit protection method according to any one of claims 1 to 7.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101447659A (en) * 2008-12-22 2009-06-03 中国广东核电集团有限公司 Fault alarm device and switchboard
US20150204753A1 (en) * 2011-08-05 2015-07-23 Karl F. Scheucher Network manageable advanced gas sensor apparatus and method
CN106324461A (en) * 2016-11-23 2017-01-11 国网四川省电力公司成都供电公司 GIS alternate AC voltage withstand test insulation monitoring system and method
CN108418304A (en) * 2018-03-09 2018-08-17 国家电网公司 Substation secondary circuit state monitoring method, apparatus and system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101447659A (en) * 2008-12-22 2009-06-03 中国广东核电集团有限公司 Fault alarm device and switchboard
US20150204753A1 (en) * 2011-08-05 2015-07-23 Karl F. Scheucher Network manageable advanced gas sensor apparatus and method
CN106324461A (en) * 2016-11-23 2017-01-11 国网四川省电力公司成都供电公司 GIS alternate AC voltage withstand test insulation monitoring system and method
CN108418304A (en) * 2018-03-09 2018-08-17 国家电网公司 Substation secondary circuit state monitoring method, apparatus and system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
严宵 等: "变电运行事故分析与事故处理", 科学咨询(科技・管理), no. 11, 5 November 2017 (2017-11-05), pages 33 - 35 *

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