CN113437806B - Method and device for controlling opening of metal loop switch and computer equipment - Google Patents
Method and device for controlling opening of metal loop switch and computer equipment Download PDFInfo
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- CN113437806B CN113437806B CN202110991814.6A CN202110991814A CN113437806B CN 113437806 B CN113437806 B CN 113437806B CN 202110991814 A CN202110991814 A CN 202110991814A CN 113437806 B CN113437806 B CN 113437806B
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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
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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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
- H02H3/027—Details with automatic disconnection after a predetermined time
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
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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
- 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
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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
- 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
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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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
- Y04S10/18—Systems supporting electrical power generation, transmission or distribution using switches, relays or circuit breakers, e.g. intelligent electronic devices [IED]
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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
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Abstract
The application relates to a method and a device for controlling the opening of a metal return wire switch, computer equipment and a storage medium. The method comprises the following steps: responding to a brake opening instruction sent by a dispatching center, and judging whether a metal return line switch to be opened is in a brake opening state; if the metal return line switch to be opened is in an unopened state, acquiring an opening count value sent by a counting end of the metal return line switch to be opened; judging whether the metal loop switch to be opened meets a preset reset condition of a counting end, and if the metal loop switch to be opened meets the preset reset condition of the counting end, controlling the reset end of the metal loop switch to be opened to generate a reset signal; and when the to-be-opened metal return line switch meets the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value and the reset signal. By adopting the method, the switching-off time interval of the metal return line switch can be shortened.
Description
Technical Field
The present disclosure relates to the field of power control technologies, and in particular, to a method and an apparatus for controlling a metal loop switch to open, a computer device, and a storage medium.
Background
When one pole needs to quit the shutdown due to some reason, the high-voltage direct-current system is converted from the bipolar operation into the monopolar ground return operation, a large amount of injection current flows to the ground through the grounding pole, and the direct-current magnetic bias is possibly brought to a main transformer near the grounding pole and the ecological environment near the grounding pole is also influenced.
Because frequent shutdown of the high-voltage direct-current system can generate large impact on alternating-current systems on two sides, in order to improve the reliability and the availability of the operation of the high-voltage direct-current system, the ground return wire and the metal return wire are generally required to be carried out under the condition that the system is not in shutdown when being switched with each other. The failure of the ground return wire to the metal return wire is more than the failure of the metal return wire to the ground return wire, wherein the most critical link is the opening control of the metal return wire switch.
The existing metallic return wire switch opening control method mainly realizes the metallic return wire switch opening control through a metallic return wire switch thermal load curve, but the technical problem of overlong metallic return wire switch opening interval caused by the phenomenon that a metallic return wire switch is pulled due to the fault in a converter station is not considered when the control is carried out according to the metallic return wire switch thermal load curve.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a metallic loop switch opening control method, an apparatus, a computer device and a storage medium, which can shorten the metallic loop switch opening interval.
A metallic return switch opening control method comprises the following steps:
responding to a brake opening instruction sent by a dispatching center, and judging whether a metal return line switch to be opened is in a brake opening state;
if the metal return line switch to be opened is in an unopened state, acquiring an opening count value sent by a counting end of the metal return line switch to be opened;
judging whether the metal loop switch to be opened meets a preset reset condition of a counting end, and if the metal loop switch to be opened meets the preset reset condition of the counting end, controlling the reset end of the metal loop switch to be opened to generate a reset signal;
and when the to-be-opened metal return line switch meets the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value and the reset signal.
In one embodiment, the method further comprises the following steps: judging whether a switching-off failure phenomenon caused by the parallel connection of two metal loop switches exists before the switching-off of the metal loop switch to be switched off;
and if the to-be-opened metal loop switch has an opening failure phenomenon caused by the parallel connection of two metal loop switches, judging that the to-be-opened metal loop switch meets a preset reset condition of a counting end.
In one embodiment, the method further comprises the following steps: judging whether a ground return wire switch corresponding to the metal return wire switch to be switched off is pulled up in order to eliminate the fault in the converter station;
and if the ground return wire switch corresponding to the to-be-switched metal return wire switch is pulled up in order to eliminate the fault in the converter station, judging that the to-be-switched metal return wire switch meets the preset reset condition of the counting end.
In one embodiment, the method further comprises the following steps: and when the to-be-opened metal return line switch does not accord with the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value.
In one embodiment, the method further comprises the following steps: resetting the opening count value according to the reset signal to obtain a reset opening count value;
and completing the switching-off task for the metal return line switch to be switched off according to the reset switching-off count value.
In one embodiment, the method further comprises the following steps: generating a switch allowable opening signal according to the reset opening count value;
and controlling the metal return line switch to be opened to complete opening based on the opening allowing signal of the switch, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened.
In one embodiment, the method further comprises the following steps: when the metal return line switch to be opened does not meet the preset reset condition of the counting end, acquiring the opening counting value;
if the opening count value is 0, controlling the metal return line switch to be opened to complete opening, and meanwhile adding one to the opening count value of the counting end of the metal return line switch to be opened;
if the opening count value is 1, controlling the metal return line switch to be opened to complete opening after a first preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened;
if the opening count value is 2, controlling the metal return line switch to be opened to complete opening after a second preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened;
and if the switching-off count value exceeds 2, controlling the metal return line switch to be switched off not to switch off.
A metallic return switch opening control apparatus, the apparatus comprising:
the switching-off judgment module is used for responding to a switching-off instruction sent by the dispatching center and judging whether the metal return line switch to be switched off is in a switching-off state;
the numerical value acquisition module is used for acquiring a switching-off count value sent by a counting end of the metal return line switch to be switched off when the metal return line switch to be switched off is in a non-switching-off state;
the reset judging module is used for judging whether the metal return line switch to be opened meets a preset reset condition of the counting end, and controlling the reset end of the metal return line switch to be opened to generate a reset signal if the metal return line switch to be opened meets the preset reset condition of the counting end;
and the switching-off processing module is used for controlling the metal return line switch to be switched off to complete a switching-off task based on the switching-off count value and the reset signal when the metal return line switch to be switched off meets the preset reset condition of the counting end.
A computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
responding to a brake opening instruction sent by a dispatching center, and judging whether a metal return line switch to be opened is in a brake opening state;
if the metal return line switch to be opened is in an unopened state, acquiring an opening count value sent by a counting end of the metal return line switch to be opened;
judging whether the metal loop switch to be opened meets a preset reset condition of a counting end, and if the metal loop switch to be opened meets the preset reset condition of the counting end, controlling the reset end of the metal loop switch to be opened to generate a reset signal;
and when the to-be-opened metal return line switch meets the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value and the reset signal.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
responding to a brake opening instruction sent by a dispatching center, and judging whether a metal return line switch to be opened is in a brake opening state;
if the metal return line switch to be opened is in an unopened state, acquiring an opening count value sent by a counting end of the metal return line switch to be opened;
judging whether the metal loop switch to be opened meets a preset reset condition of a counting end, and if the metal loop switch to be opened meets the preset reset condition of the counting end, controlling the reset end of the metal loop switch to be opened to generate a reset signal;
and when the to-be-opened metal return line switch meets the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value and the reset signal.
According to the method, the device, the computer equipment and the storage medium for controlling the opening of the metal loop switch, whether the metal loop switch to be opened is in the opened state or not is judged in response to an opening instruction sent by a dispatching center, when the metal loop switch to be opened is in the non-opened state, an opening count value sent by a counting end of the metal loop switch to be opened is obtained, whether the metal loop switch to be opened meets a preset counting end reset condition or not is judged, if the metal loop switch to be opened meets the preset counting end reset condition, a reset end of the metal loop switch to be opened is controlled to generate a reset signal, and the metal loop switch to be opened is controlled to complete an opening task based on the opening count value and the reset signal. When the preset reset condition is met, the switching-off count value is reset, and the switching-off process is carried out on the to-be-switched-off metal return switch based on the reset switching-off count value, so that the switching-off interval of the metal return switch is shortened.
Drawings
Fig. 1 is an application environment diagram of a metal return switch opening control method in an embodiment;
FIG. 2 is a schematic flow chart of a method for controlling the opening of a metallic loop switch according to an embodiment;
FIG. 3 is a schematic flow chart of the switching-off control procedure of the metal loop switch in another embodiment;
FIG. 4 is a block diagram of an embodiment of a metallic return switch opening control device;
FIG. 5 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The method for controlling the opening of the metal return switch can be applied to the application environment shown in fig. 1. Where dispatch center 102 communicates with control center 104 over a network. The dispatch center 102 and the control center 104 can be independently used to execute the metallic loop switch opening control method provided by the present application. Dispatch center 102 and control center 104 may also be used to cooperatively perform the metallic loop switch opening control provided herein. For example, the control center 104 is configured to respond to a switching-off instruction sent by the scheduling center, and determine whether the metal return line switch to be switched off is in a switched-off state; if the metal return line switch to be opened is in an unopened state, acquiring an opening count value sent by a counting end of the metal return line switch to be opened; judging whether the metal loop switch to be opened meets a preset reset condition of a counting end, and if the metal loop switch to be opened meets the preset reset condition of the counting end, controlling the reset end of the metal loop switch to be opened to generate a reset signal; and when the to-be-opened metal return line switch meets the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value and the reset signal.
In one embodiment, as shown in fig. 2, there is provided a metallic return switch opening control method, which is described by taking the method as an example applied to the terminal in fig. 1, and includes the following steps:
s202, responding to a brake opening instruction sent by the dispatching center, and judging whether the metal return line switch to be subjected to brake opening is in a brake opening state.
Specifically, in response to a switching-off instruction sent by the scheduling center, whether the to-be-switched-off metal return line switch is in a switched-off state is judged according to the received switching-off instruction. If the metal return line switch to be opened is already in the opening state, the operation of opening the gate again is not needed, and the metal return line switch to be opened is controlled to finish the operation of opening the gate.
S204, if the metal return line switch to be opened is in a non-opening state, acquiring an opening count value sent by a counting end of the metal return line switch to be opened.
Specifically, if the to-be-opened metal return line switch is in an unopened state, the to-be-opened metal return line switch needs to be opened to switch from the metal return line to the ground return line. The to-be-separated-gate metal loop switch is connected with a counting end and used for counting and calculating the number of separating-gate times of the metal loop switch, obtaining a separating-gate counting value sent by the counting end of the to-be-separated-gate metal loop switch and controlling the separating-gate of the to-be-separated-gate metal loop switch according to the separating-gate counting value.
And S206, judging whether the to-be-opened metal loop switch meets a preset reset condition of the counting end, and if so, controlling the reset end of the to-be-opened metal loop switch to generate a reset signal.
Specifically, whether a to-be-switched metal return wire switch meets a preset reset condition of a counting end is judged; judging whether the preset reset condition of the counting end is met or not by judging whether the metal loop switch to be opened meets the preset reset condition of the counting end or not, and controlling the reset end of the metal loop switch to be opened to generate a reset signal if the metal loop switch to be opened meets the preset reset condition of the counting end; correspondingly, if the to-be-opened metal return wire switch does not meet the preset reset condition of the counting end, the reset end of the to-be-opened metal return wire switch is not controlled to generate a reset signal. The reset signal can clear the switching-off times of the metal return wire switch, namely the switching-off count value. The reset signal can be generated manually when the to-be-opened metal loop switch meets the preset reset condition of the counting end, or automatically generated by program control when the to-be-opened metal loop switch meets the preset reset condition of the counting end.
And S208, when the to-be-opened metal loop switch meets the preset reset condition of the counting end, controlling the to-be-opened metal loop switch to complete the opening task based on the opening counting value and the reset signal.
Specifically, when the to-be-switched metal return line switch meets a preset reset condition of the counting end, the switching-off counting value needs to be reset according to a reset signal; resetting and resetting the opening count value according to the reset signal; after the switching-off count value is reset, controlling the metal return line switch to be switched off to complete the switching-off task according to the switching-off count value after resetting.
According to the method for controlling the opening of the metal loop switch, whether the metal loop switch to be opened is in an opened state or not is judged in response to an opening instruction sent by a dispatching center, when the metal loop switch to be opened is in a non-opened state, an opening count value sent by a counting end of the metal loop switch to be opened is obtained, whether the metal loop switch to be opened meets a preset counting end reset condition or not is judged, if the preset counting end reset condition is met, a reset end of the metal loop switch to be opened is controlled to generate a reset signal, and when the metal loop switch to be opened meets the preset counting end reset condition, the metal loop switch to be opened is controlled to complete an opening task based on the opening count value and the reset signal. When the preset reset condition is met, the switching-off count value is reset, and the switching-off process is carried out on the to-be-switched-off metal return switch based on the reset switching-off count value, so that the switching-off interval of the metal return switch is shortened.
In one embodiment, the determining whether the to-be-switched metallic return switch meets a preset reset condition of the counting end includes:
judging whether a switching-off failure phenomenon caused by the parallel connection of two metal loop switches exists before the switching-off of the metal loop switch to be switched off;
and if the to-be-opened metal loop switch has an opening failure phenomenon caused by the parallel connection of two metal loop switches, judging that the to-be-opened metal loop switch meets a preset reset condition of a counting end.
Specifically, the preset reset condition of the counting end includes that in the process of converting a metallic return line into a ground return line, after a control center sends a switching-off signal of a metallic return line switch, because a condition that a metallic return line of one converter station is connected in parallel with a metallic return line or a ground return line of another converter station exists in an intermediate state in the conversion process, at this time, under certain power levels (usually, under low power), current in a line cannot meet the conversion fixed value of the metallic return line into the ground return line, and a result of conversion failure is caused; at this time, the metal loop switch needs to be closed again, and the metal loop switch is prohibited from being opened again, and meanwhile, the counting end is reset to generate a reset signal. Namely, when the phenomenon of switching-off failure caused by the fact that the two metal loop switches are connected in parallel exists in the metal loop switch to be switched off, the metal loop switch to be switched off is judged to accord with the preset reset condition of the counting end.
In this embodiment, whether a switching-off failure phenomenon caused by the parallel connection of two metal loop switches exists in the to-be-switched-off metal loop switch before switching-off is judged, and the to-be-switched-off metal loop switch meets a preset reset condition of a counting end is judged, so that the prepositive judgment on the generation of a reset signal is realized, and the control level of the to-be-switched-off metal loop switch is improved.
In one embodiment, the determining whether the to-be-switched metallic return switch meets a preset reset condition of the counting end further includes:
judging whether a ground return wire switch corresponding to the metal return wire switch to be switched off is pulled up in order to eliminate the fault in the converter station;
and if the ground return wire switch corresponding to the to-be-switched metal return wire switch is pulled up in order to eliminate the fault in the converter station, judging that the to-be-switched metal return wire switch meets the preset reset condition of the counting end.
Specifically, the preset reset condition of the counting end further includes that whether the ground return switch corresponding to the to-be-switched metal return switch is pulled up in order to eliminate the fault in the converter station where the ground return switch is located. When a direct current system runs on a single-pole metal return wire and faults occur at different positions in a converter station, different protection operations can be performed, for example, when a neutral bus differential protection action is performed, only a neutral bus switch is pulled up, the faults cannot be isolated, and a ground return wire switch also needs to be pulled up; similarly, after the dc backup differential protection and the ground bus differential protection are performed, the ground return switch also needs to be pulled up. Namely, when the earth return line switch corresponding to the to-be-switched metal return line switch is pulled up in order to eliminate the fault in the converter station, the to-be-switched metal return line switch is judged to accord with the preset reset condition of the counting end.
In this embodiment, it is determined whether the ground return switch corresponding to the metal return switch to be opened is pulled up in order to cooperate with elimination of the fault in the converter station where the ground return switch is located, and when the ground return switch corresponding to the metal return switch to be opened is pulled up in order to cooperate with elimination of the fault in the converter station where the ground return switch is located, it is determined that the metal return switch to be opened meets the preset reset condition of the counter terminal, thereby implementing a pre-determination on the generation of the reset signal, and improving the control level of the metal return switch to be opened.
In one embodiment, the method for controlling the opening of the metallic return line switch further includes: and when the to-be-opened metal return line switch does not accord with the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value.
Specifically, when the to-be-opened metal return wire switch does not meet the preset reset condition of the counting end, the reset end of the to-be-opened metal return wire switch does not generate a reset signal; at the moment, the opening count value can not be reset according to the reset signal, and the to-be-opened metal return switch only needs to be controlled to complete the opening task based on the opening count value of the counting end.
In this embodiment, when the to-be-opened metal return line switch does not conform to the preset reset condition of the counting end, the to-be-opened metal return line switch is controlled to complete the opening task based on the opening count value, so that the opening control of the to-be-opened metal return line switch through the opening count value when the reset is not performed is realized.
In one embodiment, the controlling the to-be-opened metallic return line switch to complete the opening task based on the opening count value and the reset signal includes:
resetting the opening count value according to the reset signal to obtain a reset opening count value;
and completing the switching-off task for the metal return line switch to be switched off according to the reset switching-off count value.
Specifically, after the metal return line switch to be opened is reset, that is, the opening count value is reset according to the reset signal, the reset opening count value is obtained, that is, the opening count value obtained after the original opening count value is cleared. And controlling the metal return line switch to be opened to complete the opening task according to the reset opening counting value.
In the embodiment, the switching-off count value is reset according to the reset signal, the switching-off count value after resetting is obtained, and the switching-off task of the to-be-switched-off metal return line switch is completed according to the reset switching-off count value, so that switching-off control over the to-be-switched-off metal return line switch through the reset signal is realized, and the switching-off time interval of the to-be-switched-off metal return line switch in the prior art is shortened.
In one embodiment, the step of completing the switching-off task on the to-be-switched-off metallic return wire switch according to the reset switching-off count value includes:
generating a switch allowable opening signal according to the reset opening count value;
and controlling the metal return line switch to be opened to complete opening based on the opening allowing signal of the switch, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened.
Specifically, after the metal return line switch to be opened is reset, a switch allowable opening signal is generated according to an opening count value after resetting, the metal return line switch to be opened is controlled to be opened according to the switch allowable opening signal, and because the opening count value after resetting is zero, the opening count value of the counting end of the metal return line switch to be opened is increased by one after opening is completed, so that opening control can be performed on the metal return line switch according to a new opening count value during next opening.
In this embodiment, according to the reset opening count value, a switch-allowable opening signal is generated, and based on the switch-allowable opening signal, the to-be-opened metal loop switch is controlled to complete opening, and meanwhile, the opening count value of the counting end of the to-be-opened metal loop switch is increased by one, so that opening control of the to-be-opened metal loop switch through the reset signal is realized, and the opening time interval of the to-be-opened metal loop switch in the prior art is shortened.
In one embodiment, when the to-be-gated metallic return line switch does not meet a preset reset condition of the counting end, controlling the to-be-gated metallic return line switch to complete a gating task based on the gating count value includes:
when the metal return line switch to be opened does not meet the preset reset condition of the counting end, acquiring the opening counting value;
if the opening count value is 0, controlling the metal return line switch to be opened to complete opening, and meanwhile adding one to the opening count value of the counting end of the metal return line switch to be opened;
if the opening count value is 1, controlling the metal return line switch to be opened to complete opening after a first preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened;
if the opening count value is 2, controlling the metal return line switch to be opened to complete opening after a second preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened;
and if the switching-off count value exceeds 2, controlling the metal return line switch to be switched off not to switch off.
Specifically, fig. 3 is a schematic flow chart of the switching-off control step of the metallic return line switch in another embodiment, as shown in fig. 3, when the metallic return line switch to be switched off does not meet the preset reset condition of the counting end, the switching-off count value is obtained, and the switching-off control of the metallic return line switch to be switched off is realized according to the switching-off count value. When the opening count value is 0, controlling the metal return line switch to be opened to complete opening, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened, wherein opening of the metal return line switch to be opened is immediately completed. When the opening count value is 1, controlling the metal return line switch to be opened to complete opening after a first preset time length (usually 1 minute), and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened. When the opening count value is 2, controlling the metal return line switch to be opened to complete opening after a second preset time (usually 120 minutes), and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened; when the opening count value exceeds 2, because the metal return line switch all has the conversion of energy when opening at every turn, in order to avoid the overheated damage of electric components such as condenser, arrester because of frequent separating brake, control at this moment waits that the opening metal return line switch does not carry out the opening.
In this embodiment, when the to-be-switched metal return line switch does not conform to the preset reset condition of the counting end, the switching-off count value is obtained, when the switching-off count value is 0, the to-be-switched metal return line switch is controlled to complete switching-off, when the switching-off count value is 1, the to-be-switched metal return line switch is controlled to complete switching-off after a first preset time length, when the switching-off count value is 2, the to-be-switched metal return line switch is controlled to complete switching-off after a second preset time length, and when the switching-off count value exceeds 2, the to-be-switched metal return line switch is controlled not to perform switching-off. The opening control of the metal return line switch to be opened is realized through the opening counting value, and the safety of opening the metal return line switch is ensured.
It should be understood that although the various steps in the flow charts of fig. 2-3 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-3 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps.
In one embodiment, as shown in fig. 4, there is provided a metallic return switch opening control device, including: separating brake judging module 401, numerical value obtaining module 402, reset judging module 403 and separating brake processing module 404, wherein:
and the switching-off judgment module 401 is configured to respond to a switching-off instruction sent by the scheduling center, and judge whether the to-be-switched-off metal loop switch is in a switched-off state.
A value obtaining module 402, configured to obtain a switching-off count value sent by a count end of the to-be-switched-off metallic return line switch when the to-be-switched-off metallic return line switch is in a non-switching-off state.
The reset determining module 403 is configured to determine whether the to-be-switched metal loop switch meets a preset reset condition of the counting end, and if the to-be-switched metal loop switch meets the preset reset condition of the counting end, control the reset end of the to-be-switched metal loop switch to generate a reset signal.
And the switching-off processing module 404 is configured to control the to-be-switched-off metal return line switch to complete a switching-off task based on the switching-off count value and the reset signal when the to-be-switched-off metal return line switch meets a preset reset condition of the counting end.
In one embodiment, the reset determining module 403 is further configured to: judging whether a switching-off failure phenomenon caused by the parallel connection of two metal loop switches exists before the switching-off of the metal loop switch to be switched off; and if the to-be-opened metal loop switch has an opening failure phenomenon caused by the parallel connection of two metal loop switches, judging that the to-be-opened metal loop switch meets a preset reset condition of a counting end.
In one embodiment, the reset determining module 403 is further configured to: judging whether a ground return wire switch corresponding to the metal return wire switch to be switched off is pulled up in order to eliminate the fault in the converter station; and if the ground return wire switch corresponding to the to-be-switched metal return wire switch is pulled up in order to eliminate the fault in the converter station, judging that the to-be-switched metal return wire switch meets the preset reset condition of the counting end.
In one embodiment, the opening processing module 404 is further configured to: and when the to-be-opened metal return line switch does not accord with the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value.
In one embodiment, the opening processing module 404 is further configured to: resetting the opening count value according to the reset signal to obtain a reset opening count value; and completing the switching-off task for the metal return line switch to be switched off according to the reset switching-off count value.
In one embodiment, the opening processing module 404 is further configured to: generating a switch allowable opening signal according to the reset opening count value; and controlling the metal return line switch to be opened to complete opening based on the opening allowing signal of the switch, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened.
In one embodiment, the opening processing module 404 is further configured to: when the metal return line switch to be opened does not meet the preset reset condition of the counting end, acquiring the opening counting value; if the opening count value is 0, controlling the metal return line switch to be opened to complete opening, and meanwhile adding one to the opening count value of the counting end of the metal return line switch to be opened; if the opening count value is 1, controlling the metal return line switch to be opened to complete opening after a first preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened; if the opening count value is 2, controlling the metal return line switch to be opened to complete opening after a second preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened; and if the switching-off count value exceeds 2, controlling the metal return line switch to be switched off not to switch off.
The metal return wire switch opening control device responds to an opening instruction sent by a dispatching center, judges whether a to-be-opened metal return wire switch is in an opened state, acquires an opening count value sent by a counting end of the to-be-opened metal return wire switch when the to-be-opened metal return wire switch is in a non-opened state, judges whether the to-be-opened metal return wire switch meets a preset counting end reset condition, controls a reset end of the to-be-opened metal return wire switch to generate a reset signal if the to-be-opened metal return wire switch meets the preset counting end reset condition, and controls the to-be-opened metal return wire switch to complete an opening task based on the opening count value and the reset signal. When the preset reset condition is met, the switching-off count value is reset, and the switching-off process is carried out on the to-be-switched-off metal return switch based on the reset switching-off count value, so that the switching-off interval of the metal return switch is shortened.
For specific limitations of the metallic loop switch opening control device, reference may be made to the above limitations on the metallic loop switch opening control method, which is not described herein again. All or part of each module in the metal loop switch opening control device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 5. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to realize a metallic return wire switch opening control method.
Those skilled in the art will appreciate that the architecture shown in fig. 5 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
responding to a brake opening instruction sent by a dispatching center, and judging whether a metal return line switch to be opened is in a brake opening state;
if the metal return line switch to be opened is in an unopened state, acquiring an opening count value sent by a counting end of the metal return line switch to be opened;
judging whether the metal loop switch to be opened meets a preset reset condition of a counting end, and if the metal loop switch to be opened meets the preset reset condition of the counting end, controlling the reset end of the metal loop switch to be opened to generate a reset signal;
and when the to-be-opened metal return line switch meets the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value and the reset signal.
In one embodiment, the processor, when executing the computer program, further performs the steps of: judging whether a switching-off failure phenomenon caused by the parallel connection of two metal loop switches exists before the switching-off of the metal loop switch to be switched off; and if the to-be-opened metal loop switch has an opening failure phenomenon caused by the parallel connection of two metal loop switches, judging that the to-be-opened metal loop switch meets a preset reset condition of a counting end.
In one embodiment, the processor, when executing the computer program, further performs the steps of: judging whether a ground return wire switch corresponding to the metal return wire switch to be switched off is pulled up in order to eliminate the fault in the converter station; and if the ground return wire switch corresponding to the to-be-switched metal return wire switch is pulled up in order to eliminate the fault in the converter station, judging that the to-be-switched metal return wire switch meets the preset reset condition of the counting end.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and when the to-be-opened metal return line switch does not accord with the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value.
In one embodiment, the processor, when executing the computer program, further performs the steps of: resetting the opening count value according to the reset signal to obtain a reset opening count value; and completing the switching-off task for the metal return line switch to be switched off according to the reset switching-off count value.
In one embodiment, the processor, when executing the computer program, further performs the steps of: generating a switch allowable opening signal according to the reset opening count value; and controlling the metal return line switch to be opened to complete opening based on the opening allowing signal of the switch, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened.
In one embodiment, the processor, when executing the computer program, further performs the steps of: when the metal return line switch to be opened does not meet the preset reset condition of the counting end, acquiring the opening counting value; if the opening count value is 0, controlling the metal return line switch to be opened to complete opening, and meanwhile adding one to the opening count value of the counting end of the metal return line switch to be opened; if the opening count value is 1, controlling the metal return line switch to be opened to complete opening after a first preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened; if the opening count value is 2, controlling the metal return line switch to be opened to complete opening after a second preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened; and if the switching-off count value exceeds 2, controlling the metal return line switch to be switched off not to switch off.
The computer equipment responds to a switching-off instruction sent by a dispatching center, judges whether a metal return line switch to be switched off is in a switched-off state, acquires a switching-off count value sent by a counting end of the metal return line switch to be switched off when the metal return line switch to be switched off is in a non-switched-off state, judges whether the metal return line switch to be switched off meets a preset counting end reset condition, controls a reset end of the metal return line switch to be switched off to generate a reset signal if the metal return line switch to be switched off meets the preset counting end reset condition, and controls the metal return line switch to be switched off to complete a switching-off task based on the switching-off count value and the reset signal. When the preset reset condition is met, the switching-off count value is reset, and the switching-off process is carried out on the to-be-switched-off metal return switch based on the reset switching-off count value, so that the switching-off interval of the metal return switch is shortened.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
responding to a brake opening instruction sent by a dispatching center, and judging whether a metal return line switch to be opened is in a brake opening state;
if the metal return line switch to be opened is in an unopened state, acquiring an opening count value sent by a counting end of the metal return line switch to be opened;
judging whether the metal loop switch to be opened meets a preset reset condition of a counting end, and if the metal loop switch to be opened meets the preset reset condition of the counting end, controlling the reset end of the metal loop switch to be opened to generate a reset signal;
and when the to-be-opened metal return line switch meets the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value and the reset signal.
In one embodiment, the computer program when executed by the processor further performs the steps of: judging whether a switching-off failure phenomenon caused by the parallel connection of two metal loop switches exists before the switching-off of the metal loop switch to be switched off; and if the to-be-opened metal loop switch has an opening failure phenomenon caused by the parallel connection of two metal loop switches, judging that the to-be-opened metal loop switch meets a preset reset condition of a counting end.
In one embodiment, the computer program when executed by the processor further performs the steps of: judging whether a ground return wire switch corresponding to the metal return wire switch to be switched off is pulled up in order to eliminate the fault in the converter station; and if the ground return wire switch corresponding to the to-be-switched metal return wire switch is pulled up in order to eliminate the fault in the converter station, judging that the to-be-switched metal return wire switch meets the preset reset condition of the counting end.
In one embodiment, the computer program when executed by the processor further performs the steps of: and when the to-be-opened metal return line switch does not accord with the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value.
In one embodiment, the computer program when executed by the processor further performs the steps of: resetting the opening count value according to the reset signal to obtain a reset opening count value; and completing the switching-off task for the metal return line switch to be switched off according to the reset switching-off count value.
In one embodiment, the computer program when executed by the processor further performs the steps of: generating a switch allowable opening signal according to the reset opening count value; and controlling the metal return line switch to be opened to complete opening based on the opening allowing signal of the switch, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened.
In one embodiment, the computer program when executed by the processor further performs the steps of: when the metal return line switch to be opened does not meet the preset reset condition of the counting end, acquiring the opening counting value; if the opening count value is 0, controlling the metal return line switch to be opened to complete opening, and meanwhile adding one to the opening count value of the counting end of the metal return line switch to be opened; if the opening count value is 1, controlling the metal return line switch to be opened to complete opening after a first preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened; if the opening count value is 2, controlling the metal return line switch to be opened to complete opening after a second preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened; and if the switching-off count value exceeds 2, controlling the metal return line switch to be switched off not to switch off.
The storage medium responds to a switching-off instruction sent by a dispatching center, judges whether a metal return line switch to be switched off is in a switched-off state, acquires a switching-off count value sent by a counting end of the metal return line switch to be switched off when the metal return line switch to be switched off is in a non-switched-off state, judges whether the metal return line switch to be switched off meets a preset counting end reset condition, controls a reset end of the metal return line switch to be switched off to generate a reset signal if the metal return line switch to be switched off meets the preset counting end reset condition, and controls the metal return line switch to be switched off to complete a switching-off task based on the switching-off count value and the reset signal. When the preset reset condition is met, the switching-off count value is reset, and the switching-off process is carried out on the to-be-switched-off metal return switch based on the reset switching-off count value, so that the switching-off interval of the metal return switch is shortened.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A method for controlling the opening of a metal loop switch is characterized by comprising the following steps:
responding to a brake opening instruction sent by a dispatching center, and judging whether a metal return line switch to be opened is in a brake opening state;
if the metal return line switch to be opened is in an unopened state, acquiring an opening count value sent by a counting end of the metal return line switch to be opened;
judging whether the metal loop switch to be opened meets a preset reset condition of a counting end, and if the metal loop switch to be opened meets the preset reset condition of the counting end, controlling the reset end of the metal loop switch to be opened to generate a reset signal;
when waiting that separating brake metallic return line switch accords with the reset condition of preset counting end, based on separating brake count value with reset signal, control waits that separating brake metallic return line switch accomplishes the separating brake task, specifically include: according to the reset signal, resetting the switching-off count value to obtain a reset switching-off count value, generating a switch-allowable switching-off signal according to the reset switching-off count value, and controlling the metal return line switch to be switched off to complete switching-off based on the switch-allowable switching-off signal;
judging whether the metal return line switch to be switched off meets the preset reset condition of the counting end comprises the following steps:
judging whether a switching-off failure phenomenon caused by the parallel connection of two metal loop switches exists before the switching-off of the metal loop switch to be switched off;
and if the to-be-opened metal loop switch has an opening failure phenomenon caused by the parallel connection of two metal loop switches, judging that the to-be-opened metal loop switch meets a preset reset condition of a counting end.
2. The method of claim 1, wherein the determining whether the metal return switch to be opened meets a preset reset condition of the counting end further comprises:
judging whether a ground return wire switch corresponding to the metal return wire switch to be switched off is pulled up in order to eliminate the fault in the converter station;
and if the ground return wire switch corresponding to the to-be-switched metal return wire switch is pulled up in order to eliminate the fault in the converter station, judging that the to-be-switched metal return wire switch meets the preset reset condition of the counting end.
3. The method of claim 1, wherein the metallic return switch opening control method further comprises:
and when the to-be-opened metal return line switch does not accord with the preset reset condition of the counting end, controlling the to-be-opened metal return line switch to complete the opening task based on the opening counting value.
4. The method according to claim 1, wherein the step of completing the switching-off task for the to-be-switched-off metallic return wire switch according to the reset switching-off count value comprises the following steps:
generating a switch allowable opening signal according to the reset opening count value;
and controlling the metal return line switch to be opened to complete opening based on the opening allowing signal of the switch, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened.
5. The method as claimed in claim 3, wherein the controlling the to-be-opened metallic return line switch to complete the opening task based on the opening count value when the to-be-opened metallic return line switch does not meet the preset counting end reset condition comprises:
when the metal return line switch to be opened does not meet the preset reset condition of the counting end, acquiring the opening counting value;
if the opening count value is 0, controlling the metal return line switch to be opened to complete opening, and meanwhile adding one to the opening count value of the counting end of the metal return line switch to be opened;
if the opening count value is 1, controlling the metal return line switch to be opened to complete opening after a first preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened;
if the opening count value is 2, controlling the metal return line switch to be opened to complete opening after a second preset time length, and simultaneously adding one to the opening count value of the counting end of the metal return line switch to be opened;
and if the switching-off count value exceeds 2, controlling the metal return line switch to be switched off not to switch off.
6. A metallic return switch opening control device, characterized in that, the device includes:
the switching-off judgment module is used for responding to a switching-off instruction sent by the dispatching center and judging whether the metal return line switch to be switched off is in a switching-off state;
the numerical value acquisition module is used for acquiring a switching-off count value sent by a counting end of the metal return line switch to be switched off when the metal return line switch to be switched off is in a non-switching-off state;
the reset judging module is used for judging whether the metal return line switch to be opened meets a preset reset condition of the counting end, and controlling the reset end of the metal return line switch to be opened to generate a reset signal if the metal return line switch to be opened meets the preset reset condition of the counting end; judging whether the metal return line switch to be switched off meets the preset reset condition of the counting end comprises the following steps:
judging whether a switching-off failure phenomenon caused by the parallel connection of two metal loop switches exists before the switching-off of the metal loop switch to be switched off; if the to-be-opened metal loop switch has a switching failure phenomenon caused by the fact that two metal loop switches are connected in parallel, judging that the to-be-opened metal loop switch meets a preset reset condition of a counting end;
the separating brake processing module is used for controlling the separating brake metal return line switch to complete the separating brake task based on the separating brake count value and the reset signal when the separating brake metal return line switch meets the preset reset condition of the counting end, and specifically comprises the following steps: and resetting the switching-off count value according to the reset signal to obtain a reset switching-off count value, generating a switch-allowable switching-off signal according to the reset switching-off count value, and controlling the metal return line switch to be switched off to complete switching-off based on the switch-allowable switching-off signal.
7. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 5.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 5.
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