CN105388882B - A kind of power grid accident prediction scheme determines method and apparatus - Google Patents

A kind of power grid accident prediction scheme determines method and apparatus Download PDF

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Publication number
CN105388882B
CN105388882B CN201510744668.1A CN201510744668A CN105388882B CN 105388882 B CN105388882 B CN 105388882B CN 201510744668 A CN201510744668 A CN 201510744668A CN 105388882 B CN105388882 B CN 105388882B
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prediction
power grid
check
faulty equipment
grid accident
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CN105388882A (en
Inventor
郑伟彦
阙波
乐全明
朱义勇
陈蕾
苏毅方
崔建业
刘家齐
王凯
孟凯
徐塑
付俊强
李晓波
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Hangzhou Wo Rui Power Tech Corp Inc
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Hangzhou Wo Rui Power Tech Corp Inc
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00Testing or monitoring of control systems or parts thereof
    • G05B23/02Electric testing or monitoring
    • G05B23/0205Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0208Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
    • G05B23/0213Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/32Operator till task planning
    • G05B2219/32404Scada supervisory control and data acquisition

Abstract

The embodiment of the present invention provides a kind of power grid accident prediction scheme and determines method and apparatus, and wherein method includes:Power grid accident signal is monitored, faulty equipment and the faulty equipment title are determined according to the power grid accident information;Searched according to the faulty equipment title in default accident prediction model and obtain alternative prediction scheme, wherein, accident prediction model includes:The title of each faulty equipment and the corresponding prediction scheme of title with each faulty equipment;Each alternative prediction scheme is checked according to default check rule, obtain the check prediction scheme by check, wherein, the method for operation after the method for operation of the check corresponding equipment of prediction scheme is isolated with faulty equipment is identical, the formal power grid accident prediction scheme using the check prediction scheme as the faulty equipment.The prediction scheme of needs can be quickly and accurately found, meanwhile, the prediction scheme found is checked, the prediction scheme for solving the problems, such as to find out caused by topological structure of electric varies widely no longer is applicable in, and improves the security of power grid.

Description

A kind of power grid accident prediction scheme determines method and apparatus
Technical field
The present invention relates to dispatching of power netwoks technical field, and method and apparatus are determined more particularly to a kind of power grid accident prediction scheme.
Background technology
At present, when accident occurs for power grid, dispatcher relies primarily on existing accident prediction and carries out accident treatment.Work as dispatcher Supervised by SCADA (Supervisory Control And Data Acquisition, data acquisition are controlled with monitoring) system When measuring power grid accident signal, after judging and positioning faulty equipment, then manual retrieval, all accident prediction of identification, work as identification After going out corresponding prediction scheme, a series of subsequent operation (such as load transfer, Fault Isolation and restore electricity) is carried out according still further to prediction scheme.
After accident generation, by manual identified and prediction scheme is searched, since the energy and identification lookup speed of people are limited, this It will need to spend longer prediction scheme to identify query time so that the time lengthening of power grid accident is handled, and due to power network topology knot Structure often varies widely, and after identification lookup obtains prediction scheme, the dispatch reserve plan obtained after the lookup may be no longer appropriate for, together When, by artificial mode, it can not also ensure the correctness of the relevant operation in prediction scheme identification search procedure, make what is finally obtained Prediction scheme be not be optimal prediction scheme, the safe operation to power grid brings very big hidden danger, particularly when some faulty equipment be related to it is more During kind processing prediction scheme, problem above will be particularly evident.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of power grid accident prediction scheme and determines method and apparatus, to solve existing skill By manual identified and prediction scheme is searched in art so that the time lengthening of power grid accident is handled, and since topological structure of electric is frequent It can vary widely, after identification lookup obtains prediction scheme, the dispatch reserve plan obtained after the lookup may be no longer appropriate for, meanwhile, lead to Artificial mode is crossed, can not also ensure the correctness of the relevant operation in prediction scheme identification search procedure, make the prediction scheme finally obtained It is not optimal prediction scheme, the problem of safe operation to power grid brings very big hidden danger.
To achieve the above object, the embodiment of the present invention provides following technical solution:
A kind of power grid accident prediction scheme determines method, including:
Power grid accident signal is monitored, the name of faulty equipment and the faulty equipment is determined according to the power grid accident signal Claim;
It is corresponding that the faulty equipment in default accident prediction model is searched according to the title of the faulty equipment Prediction scheme, obtains alternative prediction scheme, wherein, the accident prediction model includes:The title of each faulty equipment and with each faulty equipment The corresponding prediction scheme of title;
Each alternative prediction scheme is checked according to default check rule, obtains the check prediction scheme by the check, Wherein, the method for operation after the method for operation for checking the corresponding equipment of prediction scheme is isolated with the faulty equipment is identical, Formal power grid accident prediction scheme using the check prediction scheme as the faulty equipment.
Wherein, the prediction scheme includes:Faulty equipment partition method, power system restoration power supply and transfer load method, monitoring are set Standby and trend limit value.
Wherein, it is described using the check prediction scheme as being further included after the formal power grid accident prediction scheme of the faulty equipment:
The formal power grid accident prediction scheme is sent to power grid;
Control the power grid to perform the formal power grid accident prediction scheme, recover normal work;
Wherein, the control power grid performs the formal power grid accident prediction scheme and includes:
The disconnecting switch for determining to disconnect according to the faulty equipment partition method, all disconnecting switch are disconnected, Isolate the faulty equipment;
Switched according to the recovery that power system restoration power supply and transfer load method determine to close, by all recoveries Switch closure, accesses the supervision equipment;
The trend limit value of the supervision equipment is revised as the corresponding trend limit value of the formal power grid accident prediction scheme.
Wherein, it is described check is carried out according to default check rule to each alternative prediction scheme to include:
Determine to wait to check alternative prediction scheme, wait to check power system restoration power supply and transfer load method in alternative prediction scheme according to described Wait to check the recovery switch for needing closure in alternative prediction scheme described in determining;
Judge in power grid whether it is all it is described wait that checking the recovery switch that closure is needed in alternative prediction scheme is in off-state, If it is not, wait that checking alternative prediction scheme does not pass through check described in then judging;
Judge when all described after the recovery that closure is needed in alternative prediction scheme switch closure is checked in power grid, it is described to treat school Whether the supervision equipment in the alternative prediction scheme of core is in running order, if it is not, waiting that checking alternative prediction scheme does not pass through school described in then judging Core.
Wherein, it is described obtain the check prediction scheme by the check after further include:
Judge whether to check prediction scheme;
If being not present, error message, end operation are shown.
Wherein, it is described to judge whether to further include after checking prediction scheme:
Prediction scheme is checked if it is determined that existing, then judges whether the number of the check prediction scheme is more than 1;
Implement each network operating mode checked after prediction scheme, defect situation and negative if more than, it is determined that the faulty equipment Lotus distribution situation, selects a check prediction scheme, by the choosing by the network operating mode, defect situation and power load distributing information summary Formal power grid accident prediction scheme of the check prediction scheme taken as faulty equipment.
Wherein, the power grid accident signal is the power grid accident signal after merger is handled and is screened.
A kind of power grid accident prediction scheme determining device, including:Monitoring modular, searching module and check module;Wherein,
The monitoring modular, for monitoring power grid accident signal, according to the power grid accident signal determine faulty equipment and The title of the faulty equipment;
The searching module, searched for the title according to the faulty equipment in default accident prediction model described in The corresponding prediction scheme of faulty equipment, obtains alternative prediction scheme, wherein, the accident prediction model includes:The title of each faulty equipment And the corresponding prediction scheme of title with each faulty equipment;
The check module, for checking each alternative prediction scheme according to default check rule, obtains passing through institute State the check prediction scheme of check, the method for operation for checking the corresponding equipment of prediction scheme isolated with the faulty equipment after fortune Line mode is identical, the formal power grid accident prediction scheme using the check prediction scheme as the faulty equipment.
Wherein, the accident prediction determining device further includes:Recovery module, for sending the formal power grid thing to power grid Therefore prediction scheme, control the power grid to perform the formal power grid accident prediction scheme, recover normal work;
The recovery module includes isolated location, recovery unit and trend unit;Wherein,
The isolated location, will be all described for the disconnecting switch for determining to disconnect according to faulty equipment partition method Disconnecting switch disconnects, and isolates the faulty equipment;
The recovery unit, the recovery for determining to close according to power system restoration power supply and transfer load method switch, All switches that recover are closed, access supervision equipment;
The trend unit, for the trend limit value of the supervision equipment to be revised as the formal power grid accident prediction scheme phase Corresponding trend limit value.
Wherein, the power grid accident prediction scheme determining device, further includes:First judgment module and the second judgment module;Wherein,
First judgment module, for judging whether to check prediction scheme, if being not present, shows error message, ties Beam operates;
Second judgment module, for when judging to exist check prediction scheme, whether judging the number for checking prediction scheme More than 1, implement each network operating mode checked after prediction scheme, defect situation and negative if more than, it is determined that the faulty equipment Lotus distribution situation, selects a check prediction scheme, by the choosing by the network operating mode, defect situation and power load distributing information summary Formal power grid accident prediction scheme of the check prediction scheme taken as faulty equipment.
Based on above-mentioned technical proposal, power grid accident prediction scheme provided in an embodiment of the present invention determines method and apparatus, monitoring electricity Net trouble-signal, determines the title of faulty equipment and the faulty equipment, according to faulty equipment according to the power grid accident signal of monitoring Title searched in default accident prediction model with the corresponding prediction scheme of the faulty equipment, obtain alternative prediction scheme, wherein, institute Stating accident prediction model includes:The title of each faulty equipment and the corresponding prediction scheme of title with each faulty equipment, to each alternative Prediction scheme is checked according to default check rule, obtains the check prediction scheme by check, wherein, check the corresponding equipment of prediction scheme The method of operation after the method for operation is isolated with the faulty equipment is identical, the formal electricity using the check prediction scheme as faulty equipment Net accident prediction, after performing the formal power grid accident prediction scheme, can solve power grid accident caused by the faulty equipment. Monitoring power grid accident signal in real time, once it is determined that accident occurs for power grid, then determines that failure is set according to the monitoring power grid accident signal The standby and title of the faulty equipment, and searched in default accident prediction model according to the title of the faulty equipment pre- accordingly Case, can quickly and accurately find the prediction scheme of needs, it is possible to reduce during prediction scheme is searched, topological structure of electric occurs Larger change, and make the no longer applicable possibility of the prediction scheme found, meanwhile, searched in default accident prediction model corresponding pre- After case, also further the prediction scheme found is checked, formal power grid accident prediction scheme will be used as by the prediction scheme of check, such as This, it is ensured that no matter whether power grid during prediction scheme is searched occurs larger change, and the formal power grid accident made is pre- Case is suitable for solving relevant device failure problems in the power grid, efficiently solves because larger change often occurs for topological structure of electric The problem of prediction scheme found out caused by change is no longer applicable in, improves the security of power grid.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.
Fig. 1 is the flow chart that power grid accident prediction scheme provided in an embodiment of the present invention determines method;
Fig. 2 determines to control power grid to perform formal power grid accident in method for power grid accident prediction scheme provided in an embodiment of the present invention The method flow diagram of prediction scheme;
Fig. 3 is determined in method to each alternative prediction scheme according to default check for power grid accident prediction scheme provided in an embodiment of the present invention The method flow diagram that rule is checked;
Fig. 4 is the method that power grid accident prediction scheme provided in an embodiment of the present invention determines that further screening verifies prediction scheme in method Flow chart;
Fig. 5 is the system block diagram of power grid accident prediction scheme determining device provided in an embodiment of the present invention;
Fig. 6 is the another system block diagram of power grid accident prediction scheme determining device provided in an embodiment of the present invention;
Fig. 7 is the structure diagram of recovery module in power grid accident prediction scheme determining device provided in an embodiment of the present invention;
Fig. 8 is the another system block diagram of power grid accident prediction scheme determining device provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is the flow chart that power grid accident prediction scheme provided in an embodiment of the present invention determines method, can be quickly and accurately Find the prediction scheme of needs, it is possible to reduce during prediction scheme is searched, larger change occurs for topological structure of electric, and makes to find The no longer applicable possibility of prediction scheme, meanwhile, the prediction scheme found is checked, is efficiently solved because topological structure of electric passes through The problem of prediction scheme found out caused by often varying widely is no longer applicable in, improves the security of power grid;Reference Fig. 1, The power grid accident prediction scheme determines that method can include:
Step S100:Power grid accident signal is monitored, faulty equipment and the failure are determined according to the power grid accident signal The title of equipment;
Wherein, the power grid accident signal of monitoring can be the single power grid accident signal from an equipment or Combination power grid accident signal from multiple devices.Correspondingly, the faulty equipment determined according to the power grid accident signal, Ke Yishi One equipment, or the failure group of multiple devices composition.Specifically, faulty equipment can be busbar, circuit, switch and knife Brake apparatus etc..
Optionally, the power grid accident signal of monitoring can come from SCADA (Supervisory Control And Data Acquisition, data acquisition are controlled with monitoring) the power grid accident signal of system, at this time, monitor power grid accident information It is to monitor the power grid accident signal that SCADA system is sent, when monitoring power grid accident signal, is believed according to the power grid accident Breath determines the title of faulty equipment and the faulty equipment.
Optionally, when the power grid accident signal of monitoring comes from the power grid accident signal of SCADA system, in monitoring electricity Before net trouble-signal, data acquisition instructions can be sent to SCADA system by elder generation, the SCADA system is gathered power grid in real time The job information of interior each equipment, determines the working status of each equipment in power grid, to obtain power grid accident information.
Optionally, the concurrency and complexity of the signal sent due to SCADA system, the signal sent by SCADA system In therefore, the signal can will likely be done after the signal that SCADA system is sent is obtained there are more pseudo- alarm signal Certain merger is screened with intelligent alarm processing, and SCADA system is sent signal and is converted into real, single signal, is monitored This does the information after merger screening, i.e. the power grid accident signal of monitoring is the power grid accident letter after merger is handled and is screened Number.
Step S110:The faulty equipment is searched in default accident prediction model according to the title of the faulty equipment Corresponding prediction scheme, obtains alternative prediction scheme, wherein, the accident prediction model includes:The title of each faulty equipment and with it is each therefore Hinder the corresponding prediction scheme of title of equipment;
There are plurality of devices in power grid, every kind of equipment has its corresponding accident prediction, therefore, according to power grid accident Information is determined after the title of faulty equipment and the faulty equipment, it is necessary to by the title of faulty equipment in default accident prediction mould Searched in type obtain with the relevant prediction scheme of the faulty equipment, exclude the accident prediction unrelated with the faulty equipment, reduce pre- Case range of choice.
Wherein, when power grid accident signal comes from individual equipment, it is single that the filtering to prediction scheme, which only needs filter faults equipment, The prediction scheme of a faulty equipment, when monitoring that trouble-signal comes from multiple equipment, the filtering to prediction scheme, which also needs to filtering, to be had The accident prediction of multiple failure group.
Carrying out before power grid accident prediction scheme determines, it should default accident prediction model, in the default accident prediction model It should include:The title of each faulty equipment and the corresponding prediction scheme of title with each faulty equipment, to obtain faulty equipment After title, the corresponding prediction scheme of the faulty equipment can be searched in the default power grid accident prediction scheme.
Optionally, the prediction scheme preserved in default accident prediction model can include:Faulty equipment partition method, power grid are extensive Multiple power supply and transfer load method, supervision equipment and trend limit value.Faulty equipment is only included in existing accident prediction model Partition method and power system restoration power supply and transfer load method, without including supervision equipment and trend limit value.In this way, according to tradition Accident prediction operated after, dispatcher can only passively understand how accident is handled, before and after can not holding accident treatment in advance The change and its influence of electric network swim, supervision equipment and trend limit value, which are brought into accident prediction model, must effectively solve Certainly this problem.
Step S120:Each alternative prediction scheme is checked according to default check rule, is obtained by the check Check prediction scheme, wherein, it is described check the corresponding equipment of prediction scheme the method for operation isolated with the faulty equipment after operation Mode is identical, the formal power grid accident prediction scheme using the check prediction scheme as the faulty equipment.
Since topological structure of electric often varies widely, by the title of faulty equipment in default accident The alternative prediction scheme searched in emergency plan model, might not be adapted to current accident treatment.Therefore, it is also desirable to combine electricity Net topology and prediction scheme progress are selected, and each alternative prediction scheme is checked according to default check rule, if alternatively prediction scheme is by checking, Illustrate that the alternative prediction scheme meets the method for operation requirement after accident, if alternative prediction scheme illustrates that this is alternative pre- not over check Case is not appropriate for instructing current accident treatment, should give up this alternative prediction scheme automatically, finally obtain the method for operation and the failure Equipment isolated after the identical check prediction scheme of the method for operation, the formal power grid thing using the check prediction scheme as the faulty equipment Therefore prediction scheme.
Corresponding prediction scheme is searched in default accident prediction model, it is further standby to what is obtained after obtaining alternative prediction scheme Select prediction scheme to be checked, formal power grid accident prediction scheme will be used as by the prediction scheme of check, so, it is ensured that no matter power grid whether Larger change occurs during prediction scheme is searched, the formal power grid accident prediction scheme made is suitable for solving related in the power grid Equipment fault problem, efficiently solves the prediction scheme found out caused by often being varied widely because of topological structure of electric not The problem of being applicable in again, improves the security of power grid.
Wherein, the method for operation of equipment refers to the totality of the electric system production and operation of electric power system dispatching department establishment Technical solution, it includes network topology, generated output, power load distributing.The method of operation has a variety of different types, general next Say, including at least normal mode, maintenance mode, temporal fashion etc..Wherein, normal mode is to ensure electric system in normal condition The mode of lower safe operation, it is embodied in the method for operation of year, month, day, and maintenance run is capital equipment in electric system Method of operation during maintenance, the purpose for working out maintenance run are that system remains to normal operation when overhaul of the equipments, temporarily Mode is to coordinate capital construction, the method for operation to adjust temporarily, and the mode in a short time formulated.
Optionally, the formal power grid thing can be sent to power grid after the formal power grid accident prediction scheme of faulty equipment is obtained Therefore prediction scheme, control the power grid to perform the formal power grid accident prediction scheme, work normally the power system restoration.
Optionally, power grid, can be by according to the formal power grid accident prediction scheme after formal power grid accident prediction scheme is received Described in faulty equipment partition method determine the disconnecting switch that need to be disconnected, all disconnecting switch are disconnected, isolate it is described therefore Hinder equipment, power system restoration power supply and transfer load method according to described in the formal power grid accident prediction scheme, determine what need to be closed Recover switch, recover switch closure by all, access supervision equipment, the trend limit value of the supervision equipment is finally being revised as this just The corresponding trend limit value of formula power grid accident prediction scheme, to complete formal power grid accident prediction scheme, recovers normal work.
Optionally, following rule can be included by presetting check rule:If the recovery switch in alternative prediction scheme is closed form State, then check the alternative and do not pass through;If after performing alternative prediction scheme, supervision equipment is not at operating status, then checks The alternative does not pass through.
Optionally, when default rule of checking includes rule:If the recovery switch in alternative prediction scheme is closure state, school The core alternative is obstructed out-of-date, can be by determining to wait to check alternative prediction scheme, and according to this, to wait to check power grid in alternative prediction scheme extensive Multiple power supply and transfer load method, determine that this waits to check the recovery switch for needing closure in alternative prediction scheme, judge in power grid whether institute There is the recovery that need to be closed switch to be in off-state, to judge that this waits to check alternative prediction scheme and check whether pass through.If all need The recovery switch of closure is in off-state, then judge that this waits to check alternative prediction scheme by checking, and need to be closed if not all Recover switch and be in off-state, then judge that this waits that checking alternative prediction scheme does not pass through check.
Optionally, when default rule of checking includes rule:If after performing alternative prediction scheme, supervision equipment is not at running State, then it is obstructed out-of-date to check the alternative, can wait to check alternative prediction scheme according to this by determining to wait to check alternative prediction scheme Middle power system restoration power supply and transfer load method, determine that this waits to check the recovery switch for needing closure in alternative prediction scheme, judge when electricity After all recovery switches that need to be closed close in net, whether which is in work shape State, to judge that this waits to check alternative prediction scheme and check whether pass through.If supervision equipment is in running order, it is standby to judge that this waits to check Prediction scheme is selected, if supervision equipment is not at working status, to judge that this waits that checking alternative prediction scheme does not pass through check by checking.
Optionally, rule can be included by presetting check rule:If the disconnecting switch in alternative prediction scheme is off-state, Check the alternative by, but need further confirm that.
Optionally, since all alternatives being likely to be obtained can not be by checking, to each described alternative pre- Case is checked according to default check rule, after obtaining the check prediction scheme by check, be can also determine whether to exist and is checked in advance Case, if being not present, illustrates that all alternatives can not then show error message by checking, end operation, if in the presence of, Then illustrate to exist in all alternatives and faulty equipment can will be used as by the check prediction scheme of check by the scheme of check Power grid accident prediction scheme.
Optionally, after being checked to each alternative prediction scheme according to default check rule, two or more are likely to be obtained By the check scheme of check, therefore, checked to each alternative prediction scheme according to default check rule, obtain passing through school After the check prediction scheme of core, prediction scheme is checked if it is determined that existing, then whether the number for the check prediction scheme that can also be judged is more than 1 A, if no more than 1, that is, the verification prediction scheme obtained is 1, then the power grid accident directly using the verification prediction scheme as faulty equipment Prediction scheme, if more than 1, it is determined that the faulty equipment implements each network operating mode, defect situation and power load distributing checked after prediction scheme Situation, a check prediction scheme is selected by network operating mode, defect situation and power load distributing information summary, by the check prediction scheme of the selection Formal power grid accident prediction scheme as faulty equipment.
Based on above-mentioned technical proposal, power grid accident prediction scheme provided in an embodiment of the present invention determines method and apparatus, monitoring electricity Net trouble-signal, determines the title of faulty equipment and the faulty equipment, according to faulty equipment according to the power grid accident signal of monitoring Title searched in default accident prediction model with the corresponding prediction scheme of the faulty equipment, obtain alternative prediction scheme, wherein, institute Stating accident prediction model includes:The title of each faulty equipment and the corresponding prediction scheme of title with each faulty equipment, to each alternative Prediction scheme is checked according to default check rule, obtains the check prediction scheme by check, wherein, check the corresponding equipment of prediction scheme The method of operation after the method for operation is isolated with the faulty equipment is identical, the formal electricity using the check prediction scheme as faulty equipment Net accident prediction, after performing the formal power grid accident prediction scheme, can solve power grid accident caused by the faulty equipment. Monitoring power grid accident signal in real time, once it is determined that accident occurs for power grid, then determines that failure is set according to the monitoring power grid accident signal The standby and title of the faulty equipment, and searched in default accident prediction model according to the title of the faulty equipment pre- accordingly Case, can quickly and accurately find the prediction scheme of needs, it is possible to reduce during prediction scheme is searched, topological structure of electric occurs Larger change, and make the no longer applicable possibility of the prediction scheme found, meanwhile, searched in default accident prediction model corresponding pre- After case, also further the prediction scheme found is checked, formal power grid accident prediction scheme will be used as by the prediction scheme of check, such as This, it is ensured that no matter whether power grid during prediction scheme is searched occurs larger change, and the formal power grid accident made is pre- Case is suitable for solving relevant device failure problems in the power grid, efficiently solves because larger change often occurs for topological structure of electric The problem of prediction scheme found out caused by change is no longer applicable in, improves the security of power grid.
Optionally, Fig. 2 shows that power grid accident prediction scheme provided in an embodiment of the present invention determines to control power grid to perform in method The method flow diagram of formal power grid accident prediction scheme, with reference to Fig. 2, the method which performs formal power grid accident prediction scheme can wrap Include:
Step S200:The formal power grid accident prediction scheme is sent to power grid;
After the formal power grid accident prediction scheme of faulty equipment is obtained, by sending the formal power grid accident prediction scheme to power grid, To control the power grid to perform the formal power grid accident prediction scheme, work normally the power system restoration.
Step S210:The disconnecting switch for determining to disconnect according to the faulty equipment partition method, by all isolation Switch off, isolate the faulty equipment;
Power grid, can be according to the faulty equipment described in the formal power grid accident prediction scheme after formal power grid accident prediction scheme is obtained Partition method, determines the disconnecting switch that need to be disconnected, then disconnects all disconnecting switch, isolate faulty equipment therein.
Step S220:Switched according to the recovery that power system restoration power supply and transfer load method determine to close, by institute There is the switch that recovers to close, access the supervision equipment;
, can be according to the electricity described in the formal power grid accident prediction scheme meanwhile power grid is after formal power grid accident prediction scheme is obtained Network recovery is powered and transfer load method, and the recovery switch that need to be closed, then recovers switch closure by all, access the formal electricity Supervision equipment described in net accident prediction.
, wherein it is desired to explanation, does not have logical order relation, can first carry out step between step S210 and step S220 S210 performs step S220 again, can also first carry out step S220 and perform step S210 again, can also perform step S210 and step at the same time Rapid S220.
Step S230:The trend limit value of the supervision equipment is revised as the corresponding tide of the formal power grid accident prediction scheme Restriction value.
After isolated fault equipment and access supervision equipment, the trend limit value of the supervision equipment of access can be revised as this just Trend limit value described in formula power grid accident prediction scheme, so as to not complete the normal work for recovering power grid.
Optionally, Fig. 3 shows that power grid accident prediction scheme provided in an embodiment of the present invention is determined in method to each alternative prediction scheme Check the method flow diagram checked of rule according to default, with reference to Fig. 3, this to each alternative prediction scheme according to it is default check rule into The method that row is checked can include:
Step S300:Determine to wait to check alternative prediction scheme, power and turn according to the power system restoration of waiting to check in alternative prediction scheme Shifting load method is waited to check the recovery switch for needing closure in alternative prediction scheme described in determining;
Determine after alternative prediction scheme is checked, can wait to check power system restoration power supply and transfer described in alternative prediction scheme according to this Load method, needs the recovery of closure to switch to determine that this waits to check in alternative prediction scheme.
Step S310:Judge in power grid whether all described to wait that checking the recovery switch for needing closure in alternative prediction scheme is in Off-state, if it is not, waiting that checking alternative prediction scheme does not pass through check described in then judging;
If default rule of checking includes rule:If the recovery switch in alternative prediction scheme is closure state, it is standby to check this Select scheme not by, then can determine this after the recovery switch that closure is needed in checking alternative prediction scheme, judge in power grid whether institute There is the recovery switch for waiting to check the need closure described in alternative prediction scheme to be in off-state, to judge that it is alternative pre- that this waits to check Whether case is checked passes through.
If all recovery switches that need to be closed are in off-state, judge that this waits to check alternative prediction scheme by checking, The no not all recovery switch that need to be closed is in off-state, then judges that this waits that checking alternative prediction scheme does not pass through check.
Step S320:Judge to work as and all in power grid described wait that checking the recovery switch that closure is needed in alternative prediction scheme closes Afterwards, whether the supervision equipment waiting to check in alternative prediction scheme is in running order, if it is not, waiting to check described in then judging alternative pre- Case does not pass through check.
If default rule of checking includes rule:If after performing alternative prediction scheme, supervision equipment is not at operating status, then This can determined after the recovery switch that closure is needed in checking alternative prediction scheme, judge to work as all recovery switches that need to be closed in power grid After closing, whether the supervision equipment that this waits to check in alternative prediction scheme is in running order, to judge that this waits to check alternative prediction scheme Whether check passes through.
If supervision equipment is in running order, judge that this waits to check alternative prediction scheme by checking, no supervision equipment is not located In working status, then judge that this waits that checking alternative prediction scheme does not pass through check.
Optionally, Fig. 4 shows that power grid accident prediction scheme provided in an embodiment of the present invention determines further to screen school in method The method flow diagram of prediction scheme is tested, with reference to Fig. 4, the method for the further screening verification prediction scheme can include:
Step S400:Judge whether to check prediction scheme;
Due to all alternatives for being likely to be obtained can not by checking, to each alternative prediction scheme according to pre- If checking rule to be checked, after obtaining the check prediction scheme by check, it can also determine whether to exist and check prediction scheme.
Step S410:If being not present, error message, end operation are shown.
If it is determined that there is no prediction scheme is checked, then illustrate that all alternatives can not then show error message by check, End operation.
Step S420:If in the presence of, judge it is described check prediction scheme number whether be more than 1;
If it is determined that exist check prediction scheme, then illustrate in all alternatives exist can by the scheme of check, but due to After being checked to each alternative prediction scheme according to default check rule, two or more check sides by check are likely to be obtained Case, therefore, is checked to each alternative prediction scheme according to default check rule, after obtaining the check prediction scheme by check, Whether the number for the check prediction scheme that can also be judged is more than 1.
Step S430:If more than, it is determined that network operating mode, defect after each check prediction scheme of faulty equipment implementation Situation and power load distributing situation, a check prediction scheme is selected by the network operating mode, defect situation and power load distributing information summary, Formal power grid accident prediction scheme using the check prediction scheme of the selection as faulty equipment.
If it is determined that the number of obtained check prediction scheme is not more than 1, that is, the verification prediction scheme obtained is 1, then directly should Power grid accident prediction scheme of the prediction scheme as faulty equipment is verified, if it is determined that the number of obtained check prediction scheme is more than 1, then can be passed through Determine that the faulty equipment implements each network operating mode, defect situation and power load distributing situation checked after prediction scheme, by network operating mode, lack The situation of falling into and power load distributing information summary select a check prediction scheme, using the check prediction scheme of the selection as the formal of faulty equipment Power grid accident prediction scheme.
Power grid accident prediction scheme provided in an embodiment of the present invention determines method, can quickly and accurately find the pre- of needs Case, it is possible to reduce during prediction scheme is searched, larger change occurs for topological structure of electric, and the prediction scheme for making to find no longer is applicable in Possibility, meanwhile, the prediction scheme found is checked, efficiently solve because topological structure of electric often vary widely Caused by the prediction scheme that finds out the problem of being no longer applicable in, improve the security of power grid.
Power grid accident prediction scheme determining device provided in an embodiment of the present invention is introduced below, power grid thing described below Therefore prediction scheme determining device determines that method can correspond reference with above-described power grid accident prediction scheme.
Fig. 5 is the system block diagram of power grid accident prediction scheme determining device provided in an embodiment of the present invention, with reference to Fig. 5, the power grid Accident prediction determining device can include:Monitoring modular 100, searching module 200 and check module 300;Wherein,
Monitoring modular 100, for monitoring power grid accident signal, faulty equipment and institute are determined according to the power grid accident signal State the title of faulty equipment;
Searching module 200, searched for the title according to the faulty equipment in default accident prediction model described in The corresponding prediction scheme of faulty equipment, obtains alternative prediction scheme, wherein, the accident prediction model includes:The title of each faulty equipment And the corresponding prediction scheme of title with each faulty equipment;
Module 300 is checked, for being checked to each alternative prediction scheme according to default check rule, is obtained by described The check prediction scheme of check, it is described check the corresponding equipment of prediction scheme the method for operation isolated with the faulty equipment after operation Mode is identical, the formal power grid accident prediction scheme using the check prediction scheme as the faulty equipment.
Optionally, Fig. 6 shows the another system block diagram of power grid accident prediction scheme determining device provided in an embodiment of the present invention, With reference to Fig. 6, which can also include:Recovery module 400.
Recovery module 400, for sending the formal power grid accident prediction scheme to power grid, controls the power grid execution described just Formula power grid accident prediction scheme, recovers normal work.
Optionally, Fig. 7 shows recovery module 600 in power grid accident prediction scheme determining device provided in an embodiment of the present invention Structure diagram, with reference to Fig. 7, which can include:Isolated location 410, recovery unit 420 and trend unit 430; Wherein,
Isolated location 410, for the disconnecting switch for determining to disconnect according to faulty equipment partition method, will it is all it is described every From switching off, isolate the faulty equipment;
Recovery unit 420, the recovery for determining to close according to power system restoration power supply and transfer load method switch, will All switches that recover close, and access supervision equipment;
Trend unit 430, for the trend limit value of the supervision equipment to be revised as the formal power grid accident prediction scheme phase Corresponding trend limit value.
Optionally, Fig. 8 shows the another system block diagram of power grid accident prediction scheme determining device provided in an embodiment of the present invention, With reference to Fig. 8, which can also include:First judgment module 500 and the second judgment module 600;Its In,
First judgment module 500, for judging whether to check prediction scheme, if being not present, shows error message, terminates Operation;
Second judgment module 600, for when judging to exist check prediction scheme, judging whether the number of the check prediction scheme is big In 1, if more than, it is determined that the faulty equipment implements each network operating mode, defect situation and load checked after prediction scheme Distribution situation, selects a check prediction scheme, by the selection by the network operating mode, defect situation and power load distributing information summary Formal power grid accident prediction scheme of the check prediction scheme as faulty equipment.
Power grid accident prediction scheme determining device provided in an embodiment of the present invention, can quickly and accurately find the pre- of needs Case, it is possible to reduce during prediction scheme is searched, larger change occurs for topological structure of electric, and the prediction scheme for making to find no longer is applicable in Possibility, meanwhile, the prediction scheme found is checked, efficiently solve because topological structure of electric often vary widely Caused by the prediction scheme that finds out the problem of being no longer applicable in, improve the security of power grid.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related part is said referring to method part It is bright.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention. A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one The most wide scope caused.

Claims (10)

1. a kind of power grid accident prediction scheme determines method, it is characterised in that including:
Power grid accident signal is monitored, the title of faulty equipment and the faulty equipment is determined according to the power grid accident signal;
The corresponding prediction scheme of the faulty equipment is searched in default accident prediction model according to the title of the faulty equipment, Alternative prediction scheme is obtained, wherein, the accident prediction model includes:The title of each faulty equipment and the title phase with each faulty equipment Corresponding prediction scheme;
Each alternative prediction scheme is checked according to default check rule, obtains the check prediction scheme by the check, wherein, The method of operation after the method for operation for checking the corresponding equipment of prediction scheme is isolated with the faulty equipment is identical, by described in Check formal power grid accident prediction scheme of the prediction scheme as the faulty equipment.
2. power grid accident prediction scheme according to claim 1 determines method, it is characterised in that the prediction scheme includes:Failure is set Standby partition method, power system restoration power supply and transfer load method, supervision equipment and trend limit value.
3. power grid accident prediction scheme according to claim 2 determines method, it is characterised in that described to make the check prediction scheme To be further included after the formal power grid accident prediction scheme of the faulty equipment:
The formal power grid accident prediction scheme is sent to power grid;
Control the power grid to perform the formal power grid accident prediction scheme, recover normal work;
Wherein, the control power grid performs the formal power grid accident prediction scheme and includes:
The disconnecting switch for determining to disconnect according to the faulty equipment partition method, all disconnecting switch is disconnected, isolation The faulty equipment;
Switched according to the recovery that power system restoration power supply and transfer load method determine to close, all recoveries are switched Closure, accesses the supervision equipment;
The trend limit value of the supervision equipment is revised as the corresponding trend limit value of the formal power grid accident prediction scheme.
4. power grid accident prediction scheme according to claim 2 determines method, it is characterised in that described to each alternative prediction scheme Carrying out check according to default check rule includes:
Determine to wait to check alternative prediction scheme, power system restoration power supply is waited to check in alternative prediction scheme and transfer load method determines according to described It is described to wait to check the recovery switch for needing closure in alternative prediction scheme;
Judge in power grid whether it is all it is described wait that checking the recovery switch that closure is needed in alternative prediction scheme is in off-state, if It is no, then wait that checking alternative prediction scheme does not pass through check described in judgement;
Judge when all described after the recovery that closure is needed in alternative prediction scheme switch closure is checked in power grid, it is described wait to check it is standby Select the supervision equipment in prediction scheme whether in running order, if it is not, waiting that checking alternative prediction scheme does not pass through check described in then judging.
5. power grid accident prediction scheme according to claim 1 determines method, it is characterised in that described to obtain by the check Check prediction scheme after further include:
Judge whether to check prediction scheme;
If being not present, error message, end operation are shown.
6. power grid accident prediction scheme according to claim 5 determines method, it is characterised in that described to judge whether to check Further included after prediction scheme:
Prediction scheme is checked if it is determined that existing, then judges whether the number of the check prediction scheme is more than 1;
If more than, it is determined that the faulty equipment implements each network operating mode, defect situation and load point checked after prediction scheme Cloth situation, selects a check prediction scheme, by the selection by the network operating mode, defect situation and power load distributing information summary Check formal power grid accident prediction scheme of the prediction scheme as faulty equipment.
7. power grid accident prediction scheme according to claim 1 determines method, it is characterised in that the power grid accident signal is warp Cross the power grid accident signal after merger processing and screening.
A kind of 8. power grid accident prediction scheme determining device, it is characterised in that including:Monitoring modular, searching module and check module;Its In,
The monitoring modular, for monitoring power grid accident signal, faulty equipment and described is determined according to the power grid accident signal The title of faulty equipment;
The searching module, the failure is searched for the title according to the faulty equipment in default accident prediction model The corresponding prediction scheme of equipment, obtains alternative prediction scheme, wherein, the accident prediction model includes:The title of each faulty equipment and with The corresponding prediction scheme of title of each faulty equipment;
The check module, for being checked to each alternative prediction scheme according to default check rule, obtains by the school The check prediction scheme of core, it is described check the corresponding equipment of prediction scheme the method for operation isolated with the faulty equipment after operation side Formula is identical, the formal power grid accident prediction scheme using the check prediction scheme as the faulty equipment.
9. power grid accident prediction scheme determining device according to claim 8, it is characterised in that
The accident prediction determining device further includes:Recovery module, for sending the formal power grid accident prediction scheme, control to power grid Make the power grid and perform the formal power grid accident prediction scheme, recover normal work;
The recovery module includes isolated location, recovery unit and trend unit;Wherein,
The isolated location, for the disconnecting switch for determining to disconnect according to faulty equipment partition method, by all isolation Switch off, isolate the faulty equipment;
The recovery unit, the recovery for determining to close according to power system restoration power supply and transfer load method switchs, by institute There is the switch that recovers to close, access supervision equipment;
The trend unit, it is corresponding for the trend limit value of the supervision equipment to be revised as the formal power grid accident prediction scheme Trend limit value.
10. power grid accident prediction scheme determining device according to claim 8, it is characterised in that further include:First judgment module With the second judgment module;Wherein,
First judgment module, for judging whether to check prediction scheme, if being not present, shows error message, terminates behaviour Make;
Second judgment module, for when judging to exist check prediction scheme, judging whether the number of the check prediction scheme is more than 1 It is a, if more than, it is determined that the faulty equipment implements each network operating mode, defect situation and power load distributing checked after prediction scheme Situation, selects a check prediction scheme, by the school of the selection by the network operating mode, defect situation and power load distributing information summary Formal power grid accident prediction scheme of the core prediction scheme as faulty equipment.
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