CN111211619B - Reclosing switch on-off state monitoring method - Google Patents
Reclosing switch on-off state monitoring method Download PDFInfo
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- CN111211619B CN111211619B CN202010075126.0A CN202010075126A CN111211619B CN 111211619 B CN111211619 B CN 111211619B CN 202010075126 A CN202010075126 A CN 202010075126A CN 111211619 B CN111211619 B CN 111211619B
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- switching
- reclosing
- breaker
- state
- power supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
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- 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
- Y04S10/40—Display of information, e.g. of data or controls
Abstract
The invention relates to the technical field of power monitoring, and particularly discloses a reclosing switch on/off state monitoring method which is suitable for a power supply line with a breaker, wherein the on/off condition of a reclosing function of the breaker is determined by the on/off state of a corresponding reclosing switch, and the method comprises the following steps: imaging each power supply line with a breaker to obtain a graphical interface; switching-on and switching-off signal collection is carried out on the switching-on and switching-off states of the reclosure switches corresponding to the power supply lines; and displaying the graphic identification of the circuit breaker in the graphic interface in a distinguishing manner according to the switching state of the reclosing switch. The invention provides a reclosing switch on-off state monitoring method, which can realize automatic monitoring of on-off states of reclosing switches, improve scheduling efficiency and reduce error leakage rate.
Description
Technical Field
The invention relates to the technical field of power monitoring, in particular to a reclosing switch on/off state monitoring method.
Background
When the fault of the overhead line is cleared, the breaker is closed in a short time, which is called reclosing; reclosing is one of the self-recovery power supply methods commonly employed in operation, since in practice most overhead line faults are transient or temporary.
Generally, a reclosing function of a circuit breaker is performed by a reclosing control loop, a reclosing switch is arranged in the reclosing control loop, when the reclosing switch is switched on, the reclosing control loop is switched on, the reclosing function of the circuit breaker is started, when the reclosing switch is switched off, the reclosing control loop is switched off, the reclosing function of the circuit breaker is stopped, and therefore the switching-on/off state of the reclosing switch determines whether the corresponding circuit breaker starts the reclosing function.
The power supply network is complicated, the number of the circuit breakers is large, and reclosing functions of the circuit breakers on different lines need to be started and stopped, so that one-cutting unified switching-on and switching-off processing cannot be performed on all reclosing switches. At present, a dispatcher mainly monitors and manages the switching-on/off state of a reclosure switch in a manual on-site observation and recording mode, so that the efficiency is low, the fault and the leakage are easy to occur, and the overall effect is poor.
Therefore, a monitoring method is needed, which can realize automatic monitoring of the switching-on/off state of each reclosing switch, thereby improving the scheduling efficiency and reducing the error leakage rate.
Disclosure of Invention
The invention aims to provide a reclosing switch on/off state monitoring method, which can realize automatic monitoring of on/off states of reclosing switches, improve scheduling efficiency and reduce error leakage rate.
In order to achieve the above object, the present invention provides a method for monitoring the on/off state of a reclosing switch, which is suitable for a power supply line with a circuit breaker, wherein the on/off state of the reclosing function of the circuit breaker is determined by the on/off state of the corresponding reclosing switch, and the method comprises the following steps:
imaging each power supply line with a breaker to obtain a graphical interface;
switching-on and switching-off signal collection is carried out on the switching-on and switching-off states of the reclosure switches corresponding to the power supply lines;
and displaying the graphic identification of the circuit breaker in the graphic interface in a distinguishing manner according to the switching state of the reclosing switch.
Preferably, part the circuit breaker is remote operation type circuit breaker, throw and move back signal acquisition to the switching state of the reclosing switch that each power supply line corresponds, include:
software control words in a soft pressing plate of the remote-operated circuit breaker are collected to serve as corresponding switching signals.
Preferably, part the circuit breaker is the on-the-spot operation type circuit breaker, throw and move back signal acquisition to the switching-on state of the reclosing switch that each power supply line corresponds, include:
the electrical signals in the hard press plate of the in-place operation type circuit breaker are collected to be used as corresponding on-off signals.
Preferably, the distinguishing and displaying the graphic identifier of the circuit breaker in the graphic interface according to the on/off state of the reclosing switch includes:
and displaying the graphic identification of the remote-operation type circuit breaker and the local-operation type circuit breaker in the graphic interface in a distinguishing way.
Preferably, after the switching signal acquisition is carried out to the switching state of the reclosure switch that each power supply line corresponds, still include:
and exporting a monitoring file, wherein the monitoring file records the types of the circuit breakers on the power supply lines and the switching information of the reclosure switches corresponding to the circuit breakers.
Preferably, the method further comprises the following steps:
importing a requirement file, wherein the requirement file records the target switching-on and switching-off states of the circuit breakers corresponding to the reclosing switches on the power supply lines;
and comparing the switching-on/off signal of the reclosing switch with the corresponding target switching-on/off state in the requirement file, and if the switching-on/off signal is not matched with the target switching-on/off state, sending out warning information.
Preferably, the method further comprises the following steps:
setting switching time of switching on and off states aiming at a reclosing switch corresponding to at least one circuit breaker;
and when the set time is reached, popping up corresponding switching reminding information of the switching state.
The invention has the beneficial effects that: on one hand, the automatic acquisition of the starting and stopping states of the reclosing function of each breaker is realized by acquiring the switching-on and switching-off signals corresponding to each reclosing switch, the workload of manual recording is reduced, the recording efficiency is improved, and the error and leakage rate of manual reading is reduced; on the other hand, the circuit breakers in different states are subjected to differential display of graphic identifiers according to the switching-on/off signals, so that a dispatcher can quickly know the switching-on/off states of the reclosing switches of the circuit breakers, and the monitoring efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the present embodiment or the prior art, the drawings needed to be used in the description of the embodiment or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings according to these drawings without inventive labor.
Fig. 1 is a flowchart of a reclosing switch on/off state monitoring method according to an embodiment;
FIG. 2 is a schematic diagram of a graphical interface provided by an embodiment;
fig. 3 is a flowchart of a reclosing switch on/off state monitoring method provided in the second embodiment;
FIG. 4 is a schematic diagram of a requirements file provided by an embodiment;
FIG. 5 is a diagram illustrating an exemplary embodiment of an alert message;
FIG. 6 is a schematic diagram of a monitoring file provided by an embodiment;
fig. 7 is a flowchart of a reclosing switch on/off state monitoring method provided in the third embodiment;
fig. 8 is a schematic diagram of a reminder message provided by an embodiment.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all 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.
Example one
The embodiment provides a reclosing switch on/off state monitoring method, which is suitable for application scenes in the field of reclosing switch on/off state monitoring, can realize automatic monitoring of on/off states of reclosing switches, improves scheduling efficiency and reduces a fault leakage rate, and is executed by a monitoring device and realized through software and/or hardware.
Fig. 1 is a flowchart of a method for monitoring an on/off state of a reclosing switch according to a first embodiment of the present invention.
Referring to fig. 1, the reclosing switch on/off state monitoring method is applicable to a power supply line with a circuit breaker, the on/off condition of the reclosing function of the circuit breaker is determined by the on/off state of the corresponding reclosing switch, and the method comprises the following steps:
s101: and imaging each power supply line with the breaker to obtain a graphical interface.
Preferably, referring to fig. 2, the power supply line 1 may be represented by a straight line in the graphical interface, the circuit breakers 2 may be represented by rectangular boxes, different power supply lines 1 are assigned with different text identifiers for distinction, and different circuit breakers 2 are assigned with different numbers, for example, the text identifiers of the power supply lines may be "jindong line", "jinsouth line", "jinxi line", and "jinbei line", and the numbers may be "510", "520", "530", and "540".
S102: and acquiring switching-on and switching-off signals of switching-on and switching-off states of the reclosure switches corresponding to the power supply lines.
It should be noted that, in general, circuit breakers can be classified into a remote-operable circuit breaker and a local-operable circuit breaker. The remotely operable circuit breaker is generally provided with a communication module and an execution mechanism, and a dispatcher can remotely perform switching operation. The on-site operation type circuit breaker cannot realize remote operation and can only be put on or taken off on site.
The circuit breaker capable of being remotely operated is generally internally provided with a soft pressing plate for storing a control program, so that software control words in the soft pressing plate can be collected to be used as corresponding switching signals. Further, in general, when the software control word is "1", the corresponding reclosing switch is in an on state, and when the software control word is "0", the corresponding reclosing switch is in an off state.
Circuit breakers of the in-place type typically have only hard press plates. The hard pressure plate is also called a protective pressure plate and is a connecting piece arranged on the protective screen. The closing and opening of the switch represents the switching on and off of the switch, so that the electric signal in the hard pressing plate can be collected to be used as the corresponding switching on and off signal. Furthermore, if the hard pressing plate is closed, an electric signal can be acquired to indicate that the reclosing switch is in an on state, and if the hard pressing plate is opened, no electric signal exists to indicate that the reclosing switch is in an off state.
S103: and displaying the graphic identification of the circuit breaker in the graphic interface in a distinguishing manner according to the switching state of the reclosing switch.
The reclosing function of the breaker which is switched into by the reclosing switch is started, and the reclosing function of the breaker which is switched out by the reclosing switch is stopped. The reclosing switch on and off conditions of the circuit breakers can be clearly indicated through the distinguishing display of the graphic representation. For example, an open rectangular frame represents a breaker to which the reclosing switch is withdrawn, and a solid rectangle represents a breaker to which the reclosing switch is put.
Further, the graphic identification of the remote-operation type circuit breaker and the local-operation type circuit breaker in the graphic interface can be displayed in a distinguishing mode. For example, a remotely operable type circuit breaker may be represented by red and a locally operable type circuit breaker may be represented by green.
In summary, referring to fig. 1, it is optional:
a red hollow rectangular wire frame 201 represents a remote-operable breaker from which a reclosing switch exits;
a red solid rectangle 202 represents a remote-operable breaker with a reclosing switch put in;
a green hollow rectangular wire frame 203 represents an on-site operation type breaker with a reclosing switch withdrawn;
the recloser switch-on, field-operated circuit breaker is represented by the green solid rectangle 204.
In this embodiment, the identifiers of the circuit breakers 2 in the power supply line 1 are the same, a centralized display area 3 is arranged below the graphical interface, and the graphical identifiers of different circuit breakers 2 are displayed in a differentiated manner and are centralized in the centralized display area 3. The centralized display setting is beneficial to enabling a dispatcher to clearly see the switching-on and switching-off states of the reclosing switch heads of all the circuit breakers at a glance, and searching in complicated power supply lines is not needed. Of course, in other embodiments, the differentiated display of the circuit breaker may be performed directly on the power line.
On one hand, the reclosing switch on/off state monitoring method provided by the embodiment realizes automatic acquisition of the on/off state of the reclosing function of each breaker by acquiring on/off signals corresponding to each reclosing switch, reduces the workload of manual recording, provides recording efficiency and reduces the error and leakage rate of manual recording; on the other hand, the circuit breakers in different states are subjected to differential display of graphic identifiers according to the switching-on/off signals, so that a dispatcher can quickly know the switching-on/off states of the reclosing switches of the circuit breakers, and the monitoring efficiency is improved.
Example two
The embodiment provides a reclosing switch on/off state monitoring method, which is characterized in that file import and export functions are added on the basis of the first embodiment, so that monitoring and management efficiency of a dispatcher on each breaker is improved conveniently.
Fig. 3 is a flowchart of a reclosing switch on/off state monitoring method provided in the third embodiment.
Referring to fig. 3, the reclosing switch on/off state monitoring method includes the following steps:
s201: and imaging each power supply line with the breaker to obtain a graphical interface.
S202: and acquiring switching-on and switching-off signals of switching-on and switching-off states of the reclosure switches corresponding to the power supply lines.
S203: and displaying the graphic identification of the circuit breaker in the graphic interface in a distinguishing manner according to the switching state of the reclosing switch.
S204: and importing a requirement file, wherein the requirement file records the target switching-on and switching-off states of the circuit breakers corresponding to the reclosing switches on the power supply lines.
Preferably, the requirement file may be a table or a document. Referring to fig. 4, the requirement file includes information such as a name of a substation, a number of a breaker switch, and a target trip state.
S205: and comparing the switching-on/off signal of the reclosing switch with the corresponding target switching-on/off state in the requirement file, and if the switching-on/off signal is not matched with the target switching-on/off state, sending out warning information.
For example, if the on/off signal of a reclosing switch is on and the corresponding target on/off state is off, a pop-up window type warning message as shown in fig. 5 may be transmitted. The scheduling personnel can select to click a 'click link to enter a page' to enter a remote control page, and remote reclosing state switching operation is carried out on the remotely operable breaker; or click on "no more alerts" to cancel the alert message.
It can be understood that the automatic comparison between the requirement file and the switching-on/off information can help the scheduling personnel to quickly find the reclosing switch which does not meet the switching-on/off requirement, and the monitoring efficiency is improved.
S206: and exporting a monitoring file, wherein the monitoring file records the types of the circuit breakers on the power supply lines and the switching information of the reclosure switches corresponding to the circuit breakers.
Specifically, the monitoring document can be used for the scheduler to perform statistics, summarization or reporting. Referring to fig. 6, preferably, the monitoring file may be a table, and includes information such as a name of the substation, a serial number of the circuit breaker, a type of the circuit breaker, an on/off state of the reclosing switch, a time when the warning information is sent out, an actual operation time, and whether real-time on/off is consistent with a requirement.
The reclosing switch on/off state monitoring method provided by the embodiment can help a dispatcher to quickly find the reclosing switch with the real-time on/off state inconsistent with the requirement, so that the monitoring efficiency of the dispatcher is greatly improved, and the occurrence of monitoring missing is reduced.
EXAMPLE III
The embodiment provides a reclosing switch on/off state monitoring method, which is characterized in that a reminding function is added on the basis of the first embodiment, and the occurrence of operation missing can be reduced.
Fig. 7 is a flowchart of a method for monitoring the on/off state of a reclosing switch provided in the third embodiment.
Referring to fig. 7, the reclosing switch on/off state monitoring method includes the following steps:
s301: and imaging each power supply line with the breaker to obtain a graphical interface.
S302: and acquiring switching-on and switching-off signals of switching-on and switching-off states of the reclosure switches corresponding to the power supply lines.
S303: and displaying the graphic identification of the circuit breaker in the graphic interface in a distinguishing manner according to the switching state of the reclosing switch.
S304: and setting switching time of the switching on/off state for a reclosing switch corresponding to at least one breaker.
S305: and when the set time is reached, popping up corresponding switching reminding information of the switching state.
In order to avoid forgetting to switch the switching operation of the switching-on/off state of the reclosing switch, the reminding setting can be performed in advance. For example, the on/off state switching time may be set for a reclosing switch, and when the set time is reached, the pop-up window type warning message shown in fig. 8 is displayed. The scheduling personnel can select to click a 'click link to enter a page' to enter a remote control page, and remote reclosing state switching operation is carried out on the remotely operable breaker; or click on "no more reminders" to cancel the reminder.
The reclosing switch on/off state monitoring method provided by the embodiment can remind a dispatcher of timely switching reclosing on/off states, and greatly reduces the occurrence of operation leakage.
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 (1)
1. A reclosing switch on-off state monitoring method is suitable for a power supply line with a breaker, wherein part of the breaker is a remote-operable breaker, and part of the breaker is a local-operable breaker; the reclosing function of circuit breaker opens and stops the condition and is decided by its switching-on state that corresponds reclosing switch, its characterized in that includes:
imaging each power supply line with a breaker to obtain a graphical interface;
throw and move back signal acquisition to the switching on state of the reclosing switch that each power supply line corresponds, include:
acquiring software control words in a soft pressing plate of a remotely operable circuit breaker to serve as corresponding switching signals;
collecting an electric signal in a hard pressing plate of the on-site operation type circuit breaker to serve as a corresponding on-off signal;
according to reclosing switch's the state of switching on and off to the circuit breaker in graphical interface graphical identification difference show includes:
the graphic identification of the remote-operation type circuit breaker and the local-operation type circuit breaker in the graphic interface is displayed in a distinguishing way;
importing a requirement file, wherein the requirement file records the target switching-on and switching-off states of the circuit breakers corresponding to the reclosing switches on the power supply lines;
comparing the switching-on/off signal of the reclosing switch with the corresponding target switching-on/off state in the requirement file, and if the switching-on/off signal is not matched with the target switching-on/off state, sending out warning information;
exporting a monitoring file, wherein the monitoring file records the types of the circuit breakers on each power supply line and switching information of reclosure switches corresponding to the circuit breakers;
setting switching time of switching on and off states aiming at a reclosing switch corresponding to at least one circuit breaker;
and when the set time is reached, popping up corresponding switching reminding information of the switching state.
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| CN111756117B (en) * | 2020-07-23 | 2022-02-15 | 广东电网有限责任公司 | Switching control method and system for distribution network reclosure |
| CN114024293B (en) * | 2021-09-23 | 2024-01-26 | 广东核电合营有限公司 | Nuclear power station transmission line tripping processing system, method and storage medium |
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