CN111049131B - Regional power grid online fault handling plan generation method and system - Google Patents
Regional power grid online fault handling plan generation method and system Download PDFInfo
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- CN111049131B CN111049131B CN201911271625.0A CN201911271625A CN111049131B CN 111049131 B CN111049131 B CN 111049131B CN 201911271625 A CN201911271625 A CN 201911271625A CN 111049131 B CN111049131 B CN 111049131B
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- 238000005259 measurement Methods 0.000 claims description 4
- 238000011156 evaluation Methods 0.000 claims description 3
- 238000012502 risk assessment Methods 0.000 abstract description 8
- 238000004590 computer program Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 5
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- 230000008520 organization Effects 0.000 description 2
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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
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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
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention discloses a regional power grid online fault handling plan generation method, which comprises the steps of analyzing tripping switches around fault equipment according to fault equipment information and a power grid topological structure; according to the topological structure of the power grid, starting from a tripping switch, searching a power loss station and a power loss bus thereof; generating a power failure station and a power failure bus power failure plan according to a preset power failure principle; and performing risk assessment on all the complex electric plans, and taking the optimal complex electric plan as a final fault treatment plan. A corresponding system is also disclosed. According to the invention, according to the fault equipment information and the power grid topological structure, the power loss station and the power loss bus thereof are searched, the complex electricity plans are generated, risk assessment is carried out on each complex electricity plan, and the optimal complex electricity plan is obtained according to the assessment result and is used as the final fault treatment plan.
Description
Technical Field
The invention relates to a regional power grid on-line fault handling plan generation method and system, and belongs to the technical field of intelligent analysis and control of power systems.
Background
The problems of complex running mode, heavy equipment load, insufficient power supply capacity and the like of the current power grid are increasingly outstanding, the pressure of safe running of the power grid is increasingly increased, the fault event of the power grid is also increasingly frequent, and serious consequences are brought to the running safety of the power grid.
In the process of dispatching operation accidents, an optimal power failure fault treatment plan needs to be provided rapidly, and as regional power grids are gradually expanded, when dispatching personnel search a power supply path for power failure loads, the power supply path obtained only by observation and experience is inevitably omitted and neglected, so that a new fault treatment plan generation method is urgently needed.
Disclosure of Invention
The invention provides a regional power grid on-line fault handling plan generation method and system, and solves the problems disclosed in the background technology.
In order to solve the technical problems, the invention adopts the following technical scheme:
a regional power grid on-line fault handling scheme generation method comprises,
according to the fault equipment information and the power grid topological structure, analyzing trip switches around the fault equipment;
according to the topological structure of the power grid, starting from a tripping switch, searching a power loss station and a power loss bus thereof;
generating a power failure station and a power failure bus power failure plan according to a preset power failure principle;
and performing risk assessment on all the complex electric plans, and taking the optimal complex electric plan as a final fault treatment plan.
The fault equipment information is fault equipment information extracted from the fault alarm information or preset fault equipment information on the station diagram.
The process of searching for the power loss station and the power loss bus thereof is that,
judging whether the spare power automatic switching is started on a section after the tripping switch acts;
and responding to the automatic backup power switching start, writing the action information of the automatic backup power switching switch into an analysis section, and searching the power loss station and the power loss bus thereof.
The process of judging whether the spare power automatic switching is started is that,
and scanning the bus of the whole network, judging whether the voltage is lost according to bus measurement information, and judging whether the automatic switching is started or not according to an automatic switching model and action logic in a dispatching control system if the voltage is lost.
And (3) starting from the fault equipment, searching the power-losing equipment by adopting a breadth-first searching algorithm according to the trend direction of the power grid, and analyzing the power-losing station and the power-losing bus thereof from the power-losing equipment.
The principle of duplicate electricity is as follows:
re-electrifying the power-losing station according to the descending order of the voltage level; if the voltage levels are the same, re-electrifying the power-losing station according to a preset rule;
re-electrifying a power-losing bus of a power-losing station according to the descending order of the voltage levels;
firstly searching whether an external power supply is used for carrying out power restoration on the power-losing bus, then searching whether a bus-bar is used for carrying out power restoration on the power-losing bus, and finally searching whether a high-voltage main transformer of the original power supply is used for carrying out power restoration on the power-losing bus.
And calculating the weight value of each complex electric plan, and evaluating the risk level according to the weight value, wherein the complex electric plan with the lowest risk level is the optimal complex electric plan.
An on-line fault handling scheme generation system for regional power grids, comprising,
trip switch analysis module: according to the fault equipment information and the power grid topological structure, analyzing trip switches around the fault equipment;
and the power-off searching module is used for: according to the topological structure of the power grid, starting from a tripping switch, searching a power loss station and a power loss bus thereof;
and the complex electricity plan generating module: generating a power failure station and a power failure bus power failure plan according to a preset power failure principle;
and an evaluation module: and performing risk assessment on all the complex electric plans, and taking the optimal complex electric plan as a final fault treatment plan.
A computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computing device, cause the computing device to perform a regional grid online fault treatment plan generation method.
A computing device comprising one or more processors, memory, and one or more programs, wherein one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising instructions for performing a regional grid online fault treatment plan generation method.
The invention has the beneficial effects that: according to the invention, according to the fault equipment information and the power grid topological structure, the power loss station and the power loss bus thereof are searched, the complex electricity plans are generated, risk assessment is carried out on each complex electricity plan, and the optimal complex electricity plan is obtained according to the assessment result and is used as the final fault treatment plan.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1, a regional power grid online fault handling scheme generating method includes the following steps:
and step 1, collecting fault equipment information.
Under the abnormal condition of the power grid, acquiring fault equipment information extracted from fault alarm information or fault equipment information preset on a station diagram by adopting a real-time periodic scanning mode; and acquiring power grid model information, equipment remote signaling telemetry data, equipment parameters, node connection relations and the like in the dispatching control system, and establishing an initial section for fault recovery analysis.
The fault device information mainly includes: switch tripping, bus fault, line fault and total station voltage loss information.
When a real-time fault occurs, the organization form of a transmitted message and a channel of the message need to be determined by the intelligent alarm function, and if the fault occurs after the organization form is completely consistent with the channel of the message, the fault equipment information is received.
And 2, analyzing trip switches around the fault equipment according to the fault equipment information and the power grid topological structure.
After the fault equipment information is received, the topology analysis is carried out until the bus and the main transformer are reached, and trip switches around the fault equipment are analyzed.
Step 3, searching a power loss station and a power loss bus thereof from a tripping switch according to the topological structure of the power grid; the specific process is as follows:
31 Judging whether the spare power automatic switching is started on the section after the tripping switch acts.
And scanning the bus of the whole network, judging whether the voltage is lost according to bus measurement information, and judging whether the automatic switching is started or not according to an automatic switching model and action logic in a dispatching control system if the voltage is lost.
32 Responding to the automatic backup power switching, writing the action information of the automatic backup power switching into an analysis section (namely writing into an initial section), remote signaling and telemetry data according to a power grid topological structure on the new analysis section, starting from fault equipment, searching power-losing equipment according to the power flow direction of the power grid by adopting a breadth-first search algorithm, and analyzing a power-losing station and a power-losing bus thereof from the power-losing equipment; and searching the power failure station and the power failure bus thereof under the condition of an initial section in response to the non-starting of the spare power automatic switching.
And step 4, generating a power failure station and a power failure bus power failure plan thereof according to a preset power failure principle.
The principle of duplicate electricity is as follows:
A. re-electrifying the power-losing station according to the descending order of the voltage levels, namely, preferentially re-electrifying the power-losing station when the voltage level is higher; if the voltage levels are the same, re-electrifying the power-losing station according to a preset rule; the preset rules are manually configured rules, such as: the number of lost loads, the number of important users and the like, namely, the higher the lost load is, the higher the number of important users is, the higher the important users are, the more the important users are, the priority is, the power is, and the like;
B. re-electrifying a power-losing bus of a power-losing station according to the descending order of voltage levels, namely, preferentially re-electrifying the higher the voltage level is;
C. firstly searching whether an external power supply is used for carrying out power restoration on a power-losing bus, if so, generating an external power supply power restoration plan, then searching whether a bus connection is used for carrying out power restoration on the power-losing bus, if so, generating a bus connection power restoration plan, and finally searching whether a high-voltage main transformer of an original power supply is used for carrying out power restoration on the power-losing bus, and if so, generating a high-voltage main transformer power restoration plan; the weight coefficient of the external power supply is high; the weight coefficient of the high-voltage main transformer complex power by using the primary power supply is the lowest.
And 5, performing risk assessment on all the complex electricity plans, and taking the optimal complex electricity plan as a final fault treatment plan.
And calculating the weight value of each complex electric plan, and evaluating the risk level according to the weight value, wherein the complex electric plan with the lowest risk level is the optimal complex electric plan.
According to the method, according to the fault equipment information and the power grid topological structure, the power loss station and the power loss bus thereof are searched, the power restoration plan is generated, risk assessment is carried out on each power restoration plan, and the optimal power restoration plan is obtained according to the assessment result and is used as a final fault disposal plan.
An on-line fault handling scheme generation system for regional power grids, comprising,
trip switch analysis module: according to the fault equipment information and the power grid topological structure, analyzing trip switches around the fault equipment;
and the power-off searching module is used for: according to the topological structure of the power grid, starting from a tripping switch, searching a power loss station and a power loss bus thereof;
and the complex electricity plan generating module: generating a power failure station and a power failure bus power failure plan according to a preset power failure principle;
and an evaluation module: and performing risk assessment on all the complex electric plans, and taking the optimal complex electric plan as a final fault treatment plan.
A computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computing device, cause the computing device to regional power grid online fault handling plan generation method.
A computing device comprising one or more processors, memory, and one or more programs, wherein one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising instructions for performing a regional grid online fault treatment plan generation method.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing is illustrative of the present invention and is not to be construed as limiting thereof, but rather as providing for the use of additional embodiments and advantages of all such modifications, equivalents, improvements and similar to the present invention are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (5)
1. A regional power grid on-line fault handling scheme generation method is characterized by comprising the following steps of: comprising the steps of (a) a step of,
according to the fault equipment information and the power grid topological structure, analyzing trip switches around the fault equipment;
according to the topological structure of the power grid, starting from a tripping switch, searching a power loss station and a power loss bus thereof;
the process of searching the power loss station and the power loss bus thereof is as follows:
judging whether the spare power automatic switching is started on a section after the tripping switch acts; responding to the starting of the spare power automatic switching, writing the action information of the spare power automatic switching into an analysis section, and searching a power loss station and a power loss bus thereof; the method comprises the steps of scanning a bus of the whole network, judging whether the bus is out of voltage according to bus measurement information, and judging whether the automatic switching is started or not according to an automatic switching model and action logic in a dispatching control system if the bus is out of voltage; starting from the fault equipment, searching the power-losing equipment by adopting a breadth-first searching algorithm according to the trend direction of the power grid, and analyzing a power-losing plant station and a power-losing bus thereof from the power-losing equipment;
generating a power failure station and a power failure bus power failure plan according to a preset power failure principle; wherein, the principle of duplicate electricity is: re-electrifying the power-losing station according to the descending order of the voltage level; if the voltage levels are the same, re-electrifying the power-losing station according to a preset rule; re-electrifying a power-losing bus of a power-losing station according to the descending order of the voltage levels; firstly searching whether an external power supply is used for carrying out power restoration on a power-losing bus, if so, generating an external power supply power restoration plan, then searching whether a bus connection is used for carrying out power restoration on the power-losing bus, if so, generating a bus connection power restoration plan, and finally searching whether a high-voltage main transformer of an original power supply is used for carrying out power restoration on the power-losing bus, and if so, generating a high-voltage main transformer power restoration plan; the weight coefficient of the duplicate power by using the external power supply is high; the weight coefficient of the bus-tie complex power is utilized for a plurality of times, and the weight coefficient of the high-voltage main transformer complex power of the original power supply is utilized to be the lowest;
and calculating the weight value of each complex electric plan, and evaluating the risk level according to the weight value, wherein the complex electric plan with the lowest risk level is the optimal complex electric plan.
2. The regional power grid on-line fault handling scheme generation method of claim 1, wherein: the fault equipment information is fault equipment information extracted from the fault alarm information or preset fault equipment information on the station diagram.
3. An regional power grid on-line fault handling scheme generation system is characterized in that: comprising the steps of (a) a step of,
trip switch analysis module: according to the fault equipment information and the power grid topological structure, analyzing trip switches around the fault equipment;
and the power-off searching module is used for: according to the topological structure of the power grid, starting from a tripping switch, searching a power loss station and a power loss bus thereof;
the process of searching the power loss station and the power loss bus thereof is as follows:
judging whether the spare power automatic switching is started on a section after the tripping switch acts; responding to the starting of the spare power automatic switching, writing the action information of the spare power automatic switching into an analysis section, and searching a power loss station and a power loss bus thereof; the method comprises the steps of scanning a bus of the whole network, judging whether the bus is out of voltage according to bus measurement information, and judging whether the automatic switching is started or not according to an automatic switching model and action logic in a dispatching control system if the bus is out of voltage; starting from the fault equipment, searching the power-losing equipment by adopting a breadth-first searching algorithm according to the trend direction of the power grid, and analyzing a power-losing plant station and a power-losing bus thereof from the power-losing equipment;
and the complex electricity plan generating module: generating a power failure station and a power failure bus power failure plan according to a preset power failure principle; wherein, the principle of duplicate electricity is: re-electrifying the power-losing station according to the descending order of the voltage level; if the voltage levels are the same, re-electrifying the power-losing station according to a preset rule; re-electrifying a power-losing bus of a power-losing station according to the descending order of the voltage levels; firstly searching whether an external power supply is used for carrying out power restoration on a power-losing bus, if so, generating an external power supply power restoration plan, then searching whether a bus connection is used for carrying out power restoration on the power-losing bus, if so, generating a bus connection power restoration plan, and finally searching whether a high-voltage main transformer of an original power supply is used for carrying out power restoration on the power-losing bus, and if so, generating a high-voltage main transformer power restoration plan; the weight coefficient of the duplicate power by using the external power supply is high; the weight coefficient of the bus-tie complex power is utilized for a plurality of times, and the weight coefficient of the high-voltage main transformer complex power of the original power supply is utilized to be the lowest;
and an evaluation module: and calculating the weight value of each complex electric plan, and evaluating the risk level according to the weight value, wherein the complex electric plan with the lowest risk level is the optimal complex electric plan.
4. A computer readable storage medium storing one or more programs, characterized by: the one or more programs include instructions, which when executed by a computing device, cause the computing device to perform any of the methods of claims 1-2.
5. A computing device, characterized by: comprising the steps of (a) a step of,
one or more processors, memory, and one or more programs, wherein one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising instructions for performing any of the methods of claims 1-2.
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| CN111969709B (en) * | 2020-07-27 | 2022-04-19 | 国电南瑞科技股份有限公司 | Intelligent alarm method and system based on power system spare power automatic switching analysis |
| CN113092930A (en) * | 2021-02-20 | 2021-07-09 | 贵州电网有限责任公司 | Intelligent regulation and control system and method for power grid power failure and restoration |
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