CN103971205B - Method for acquiring data for automation generation of power grid accident pre-arranged plan - Google Patents

Method for acquiring data for automation generation of power grid accident pre-arranged plan Download PDF

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Publication number
CN103971205B
CN103971205B CN201410207246.6A CN201410207246A CN103971205B CN 103971205 B CN103971205 B CN 103971205B CN 201410207246 A CN201410207246 A CN 201410207246A CN 103971205 B CN103971205 B CN 103971205B
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power
current value
branch
transformer
power branch
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CN103971205A (en
Inventor
袁智育
夏志平
符国善
段武军
陈晨
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Jiangsu Power Co Gaochun County Electric Co
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Nanjing Power Supply Co of Jiangsu Electric Power Co
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Jiangsu Power Co Gaochun County Electric Co
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Nanjing Power Supply Co of Jiangsu Electric Power Co
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Publication of CN103971205A publication Critical patent/CN103971205A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

Abstract

The invention relates to a method for acquiring data for automation generation of a power grid accident pre-arranged plan and belongs to the technical field of power supply systems. The method comprises the following steps of (1) drawing a power grid topological structure chart according to connection relations of a plurality of electric devices in a power grid; (2) selecting out the electric device needing accident pre-arranged plan making in the power grid topological structure chart, and identifying the electric device as a fault device; (3) searching for the power grid topological structure chart, according to a power supply path from a transformer substation power supply to the fault device in the power grid topological structure chart, setting the end of the fault device connected with a transformer substation power supply as a fault device front end, setting the other end of the fault device as a fault device rear end, and judging connection conditions of the fault device rear end. By means of the method for acquiring data for automation generation of the power grid accident pre-arranged plan, data can be acquired to automatically generate the power grid accident pre-arranged plan on performing electricity regulation or load transfer on the device in the rear end in a power grid connection diagram.

Description

The collecting method automatically generating for power grid accident prediction scheme
Technical field
The present invention relates to a kind of collecting method automatically generating for power grid accident prediction scheme, belong to electric power system technology Field.
Background technology
In recent years, with the development of social economy, distribution scale gradually expands, and gradually increases with the contact of 10kv circuit, The usage quantity of all kinds of accident predictions also increases continuous.
Power grid accident prediction scheme refer to power grid accident do not occur before preparation, for line outage, switch trip, bus therefore What situations such as barrier, main transformer dead electricity was made prepares in advance, when accident truly occurs, can rapidly carry out accident according to this prediction scheme Process, transfer load, until restoring electricity, reduce the loss that user's power failure causes.
Accident prediction is all hand-coding at present, and hand-coding depends entirely on experience and the responsibility of method of operation personnel The heart, speed is slow, and there may be mistakes and omissions, becomes increasingly complex with modern power network, lead to all kinds of accident predictions writes difficulty Also increasing.
In writing all kinds of accident predictions, when wherein certain device fails, in order to reduce loss, need this is set The equipment of standby rear end carries out adjusting electricity or transfer load.Particularly when the equipment of this equipment rear end closes on multiple power supplys, Ke Yiyu When multiple power supplys connect, the most rational path how is selected to carry out adjusting electricity just to become a great problem.
Content of the invention
The technical problem to be solved in the present invention is not enough for prior art, proposes one kind and carries out data acquisition for right On electrical network communication chart, the equipment of rear end carries out adjusting the data acquisition automatically generating for power grid accident prediction scheme of electricity or transfer load Method.
The present invention is that the technical scheme solving above-mentioned technical problem proposition is: one kind automatically generates for power grid accident prediction scheme Collecting method, comprise the following steps:
1) annexation according to electrical equipments multiple in described electrical network draws topological structure of electric figure, from existing Open3000 system obtain described electrical equipment telemetry parameter, give topological structure of electric in figure electrical equipment be in original Working condition;
Described electrical equipment includes transformer station's power supply, bus, branch line, switch, plug-in strip and terminal unit, described telemetry parameter Including voltage, electric current, active and idle data;
2) select topological structure of electric in figure to need to work out the electrical equipment of accident prediction, its original operating states is set to Power down mode, and this electrical equipment is designated faulty equipment;
3) search for topological structure of electric figure, according to topological structure of electric in figure from transformer station's power supply to described faulty equipment Residing supply path, one end that described faulty equipment is connected with transformer station power supply is set to faulty equipment front end, described fault The other end of equipment is set to faulty equipment rear end, judges the connection of described faulty equipment rear end:
A. the connectionless equipment in described faulty equipment rear end, then this faulty equipment make power failure and process, export topological structure of electric The supply path of this faulty equipment of in figure;
B. described faulty equipment rear end is connected with multiple equipment, then faulty equipment according to topological structure of electric in figure The branch road that rear end connects, multiple equipment is divided into non-transformer branch road and have power branch, and search for each non-transformer branch road and Each has power branch, and analyzing each non-transformer branch road has a line condition of power branch with each:
B1. described faulty equipment rear end is only connected with non-transformer branch road, and the non-transformer of output topological structure of electric in figure props up The supply path on road;
B2. described faulty equipment rear end be connected with non-transformer branch road and one have power branch, then read any one no electric The first current value before the branch road power-off of source, reads this second current value before having power-off on power branch, this has on power branch The first load current value and this have the second load current value of power branch source main transformer;When described first current value has with this Described second current value sum on power branch be less than this of 1.2 times have the first load current value on power branch and this have During the second load current value sum of power branch source main transformer, then this non-transformer branch road there is is power branch to carry out even with this Connect, this of output topological structure of electric in figure has the supply path that power branch is connected with non-transformer branch road;When the described first electricity Flow valuve and this have described second current value sum on power branch to be more than or equal to this of 1.2 times to have the first volume on power branch When determining the second load current value sum that current value has power branch source main transformer with this, then export topological structure of electric in figure The supply path of this non-transformer branch road;
B3. described faulty equipment rear end be connected with non-transformer branch road and multiple have power branch, then read any one no electric The first current value before the branch road power-off of source, read each second current value before having power-off on power branch, this have power branch On the first load current value and this have the second load current value of power branch source main transformer, when described first current value with appoint One described second current value sum having on power branch is less than this of 1.2 times the first load current value on power branch Have with this power branch source main transformer the second load current value sum when, output topological structure of electric in figure this have power supply to prop up Road and the supply path of non-transformer branch road;
The described data automatically generating for power grid accident prediction scheme is each supply path and the 1st that above steps obtains) Step obtains the set of telemetry parameter.
The present invention can carry out data acquisition for carrying out to the equipment of rear end on electrical network communication chart adjusting electricity or transfer negative The automatically generating for power grid accident prediction scheme of lotus, particularly when this equipment rear end is connected with multiple non-transformer branch roads and multiple has electricity Source branch road, can select the most rational path to carry out adjusting electricity, thus have generate prediction scheme speed is fast, efficiency high, safe, Consideration is more comprehensively;And the prediction scheme uniform format generating, beneficial to the advantage of management.
The improvement of technique scheme is: in described b3 step, described faulty equipment rear end be connected with non-transformer branch road and Multiple have power branch, then read the first current value before power-off on any one non-transformer branch road, read each and have power branch The second current value before upper power-off, this have ct mono- sub-value on power branch and this have the second specified of power branch source main transformer Current value, when described first current value and any one have the second current value sum on power branch to be less than this of 1.2 times to have electricity During the ct mono- sub-value sum of the second load current value of source branch road source main transformer and this power branch, export topological structure of electric figure In this have the supply path of power branch and non-transformer branch road.
The present invention can carry out data acquisition for carrying out to the equipment of rear end on electrical network communication chart adjusting electricity or transfer negative The automatically generating for power grid accident prediction scheme of lotus, particularly when this equipment rear end is connected with multiple non-transformer branch roads and multiple has electricity Source branch road, can select the most rational path to carry out adjusting electricity.
The improvement of technique scheme is: in described b3 step, when any one non-transformer branch road with multiple have power branch It is satisfied by described first current value and any one has described second current value sum on power branch to be less than this of 1.2 times to have electricity When the first load current value on the branch road of source has the second load current value sum of power branch source main transformer with this, then first export Described first current value of topological structure of electric in figure and any one have the second current value sum on power branch with 1.2 times This has the confession circuit having power branch and non-transformer branch road of the second load current value difference maximum of power branch source main transformer Footpath;Described first current value exporting topological structure of electric in figure again has the second current value sum on power branch with any one Differ the maximum confession having power branch to be connected with non-transformer branch road with 1.2 times this first load current value having power branch Power path.
Brief description
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the workflow diagram that the embodiment of the present invention is used for the collecting method that power grid accident prediction scheme automatically generates.
Specific embodiment
Embodiment
The collecting method automatically generating for power grid accident prediction scheme of the present embodiment, as shown in figure 1, include following walking Rapid:
1) annexation according to electrical equipments multiple in electrical network draws topological structure of electric figure, from existing open3000 System obtains the telemetry parameter of electrical equipment, and the electrical equipment giving topological structure of electric in figure is in original operating states;
Electrical equipment includes transformer station's power supply, bus, branch line, switch, plug-in strip and terminal unit, and telemetry parameter includes electricity Pressure, electric current, active and idle data;
2) select topological structure of electric in figure to need to work out the electrical equipment of accident prediction, its original operating states is set to Power down mode, and this electrical equipment is designated faulty equipment;
3) search for topological structure of electric figure, according to residing for topological structure of electric in figure is from transformer station power supply to faulty equipment Supply path, one end that faulty equipment is connected with transformer station power supply is set to faulty equipment front end, the other end of faulty equipment It is set to faulty equipment rear end, the connection of failure judgement equipment rear end:
A. the connectionless equipment in faulty equipment rear end, then this faulty equipment make power failure process, export topological structure of electric in figure This faulty equipment supply path;
B. faulty equipment rear end is connected with multiple equipment, then connected according to topological structure of electric in figure faulty equipment rear end Branch road, multiple equipment is divided into non-transformer branch road and have power branch, and searches for each non-transformer branch road and each has electricity Source branch road, analyzing each non-transformer branch road has a line condition of power branch with each:
B1. faulty equipment rear end is only connected with non-transformer branch road, the non-transformer branch road of output topological structure of electric in figure Supply path;
B2. faulty equipment rear end be connected with non-transformer branch road and one have power branch, then read any one non-transformer and prop up The first current value before the power-off of road, read this second current value before having power-off on power branch, this have on power branch One load current value has the second load current value of power branch source main transformer with this;When the first current value has power branch with this On the second current value sum be less than this of 1.2 times have the first load current value on power branch and this have power branch source During the second load current value sum of main transformer, then this non-transformer branch road there is is power branch to be attached with this, output electrical network is opened up This flutterring in structure chart has the supply path that power branch is connected with non-transformer branch road;When the first current value has power branch with this On the second current value sum be more than or equal to this of 1.2 times have the first load current value on power branch and this have power branch During the second load current value sum of source main transformer, then the confession circuit of this non-transformer branch road of output topological structure of electric in figure Footpath;
B3. faulty equipment rear end be connected with non-transformer branch road and multiple have power branch, then read any one non-transformer and prop up The first current value before the power-off of road, reads each second current value before having power-off on power branch, this has on power branch First load current value has the second load current value of power branch source main transformer with this, when the first current value has electricity with any one The second current value sum on the branch road of source be less than this of 1.2 times have the first load current value on power branch and this have power supply to prop up During the second load current value sum of road source main transformer, this of output topological structure of electric in figure has power branch to prop up with non-transformer The supply path on road;
The data automatically generating for power grid accident prediction scheme is each supply path and the 1st that above steps obtains) step Obtain the set of telemetry parameter.
In the b3 step of the present embodiment, faulty equipment rear end be connected with non-transformer branch road and multiple have power branch, then read Take the first current value before power-off on any one non-transformer branch road, read each second electric current before having power-off on power branch Value, this have ct mono- sub-value on power branch and this have the second load current value of power branch source main transformer, when the first electric current Value and any one have the second current value sum on power branch to be less than this of 1.2 times to have the second volume of power branch source main transformer Determine current value and this power branch ct mono- sub-value sum when, this of output topological structure of electric in figure has power branch and no electricity The supply path of source branch road.
The ct of the present embodiment is the abbreviation of current transformer, and its effect is by certain by primary current larger for numerical value No-load voltage ratio is converted to the less secondary current of numerical value.
In the b3 step of the present embodiment, when any one non-transformer branch road with multiple have power branch to be satisfied by the first current value Having the second current value sum on power branch to be less than this of 1.2 times with any one has the first load current value on power branch Have with this power branch source main transformer the second load current value sum when, then first output topological structure of electric in figure described the One current value and any one have the second current value sum on power branch and this of 1.2 times to have the of power branch source main transformer The maximum supply path having power branch and non-transformer branch road of two load current value differences;Export topological structure of electric in figure again The first current value and any one have the second current value sum on power branch and this of 1.2 times to have the first volume of power branch Determine the maximum supply path having power branch to be connected of current value difference with non-transformer branch road.
The accident prediction of the present embodiment refer to power grid accident do not occur before preparation, for line outage, switch trip, mother The preparation that situations such as line fault, main transformer dead electricity is made, including contents such as operating unit, operation content and remarks.
The present invention is not limited to above-described embodiment.The technical scheme that all employing equivalents are formed, all falling within the present invention will The protection domain asked.

Claims (1)

1. a kind of collecting method automatically generating for power grid accident prediction scheme it is characterised in that: comprise the following steps:
1) annexation according to electrical equipments multiple in described electrical network draws topological structure of electric figure, from existing open3000 System obtains the telemetry parameter of described electrical equipment, and the electrical equipment giving topological structure of electric in figure is in original work shape State;
Described electrical equipment includes transformer station's power supply, bus, branch line, switch, plug-in strip and terminal unit, and described telemetry parameter includes Voltage, electric current, active and idle data;
2) select topological structure of electric in figure to need to work out the electrical equipment of accident prediction, its original operating states is set to have a power failure State, and this electrical equipment is designated faulty equipment;
3) search for topological structure of electric figure, according to topological structure of electric in figure from transformer station's power supply to described faulty equipment residing for Supply path, one end that described faulty equipment is connected with transformer station power supply is set to faulty equipment front end, described faulty equipment The other end be set to faulty equipment rear end, judge the connection of described faulty equipment rear end:
A. the connectionless equipment in described faulty equipment rear end, then this faulty equipment make power failure and process, export topological structure of electric in figure This faulty equipment supply path;
B. described faulty equipment rear end is connected with multiple equipment, then faulty equipment rear end according to topological structure of electric in figure The branch road connecting, multiple equipment is divided into non-transformer branch road and have power branch, and search for each non-transformer branch road and each There is power branch, analyzing each non-transformer branch road has a line condition of power branch with each:
B1. described faulty equipment rear end is only connected with non-transformer branch road, the non-transformer branch road of output topological structure of electric in figure Supply path;
B2. described faulty equipment rear end be connected with non-transformer branch road and one have power branch, then read any one non-transformer and prop up The first current value before the power-off of road, read this second current value before having power-off on power branch, this have on power branch One load current value has the second load current value of power branch source main transformer with this;When described first current value has power supply with this Described second current value sum on branch road be less than this of 1.2 times have the first load current value on power branch and this have power supply During the second load current value sum of branch road source main transformer, then this non-transformer branch road there is is power branch to be attached with this, defeated This going out topological structure of electric in figure has the supply path that power branch is connected with non-transformer branch road;When described first current value and This has described second current value sum on power branch to be more than or equal to this of 1.2 times and has the first rated current on power branch Value and this have power branch source main transformer the second load current value sum when, then output topological structure of electric in figure this is no electric The supply path of source branch road;
B3. described faulty equipment rear end be connected with non-transformer branch road and multiple have power branch, then read any one non-transformer and prop up The first current value before the power-off of road, reads each second current value before having power-off on power branch, this has on power branch First load current value and this have the second load current value of power branch source main transformer, when described first current value and any one Having described second current value sum on power branch to be less than this of 1.2 times has the first load current value on power branch and should Have power branch source main transformer the second load current value sum when, output topological structure of electric in figure this have power branch with The supply path of non-transformer branch road;
The described data automatically generating for power grid accident prediction scheme is each supply path and the 1st that above steps obtains) step Obtain the set of telemetry parameter;
In described b3 step, described faulty equipment rear end be connected with non-transformer branch road and multiple have power branch, then read arbitrary The first current value before power-off on individual non-transformer branch road, read each second current value before having power-off on power branch, this has Ct mono- sub-value on power branch and this have the second load current value of power branch source main transformer, when described first current value and Any one has the second current value sum on power branch to be less than this of 1.2 times and has the second specified electricity of power branch source main transformer During the ct mono- sub-value sum of flow valuve and this power branch, this of output topological structure of electric in figure has power branch to prop up with non-transformer The supply path on road;
In described b3 step, when any one non-transformer branch road with multiple have power branch to be satisfied by described first current value and arbitrary The individual described second current value sum having on power branch be less than this of 1.2 times have the first load current value on power branch and When this has the second load current value sum of power branch source main transformer, then first export described the first of topological structure of electric in figure Current value and any one have the second current value sum on power branch and this of 1.2 times to have the second of power branch source main transformer The maximum supply path having power branch and non-transformer branch road of load current value difference;Export topological structure of electric in figure again Described first current value and any one have the second current value sum on power branch and this of 1.2 times to have the first of power branch The maximum supply path having power branch to be connected with non-transformer branch road of load current value difference.
CN201410207246.6A 2014-05-16 2014-05-16 Method for acquiring data for automation generation of power grid accident pre-arranged plan Active CN103971205B (en)

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