CN105388882A - Preliminary plan determining method and apparatus of power grid accident - Google Patents
Preliminary plan determining method and apparatus of power grid accident Download PDFInfo
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- CN105388882A CN105388882A CN201510744668.1A CN201510744668A CN105388882A CN 105388882 A CN105388882 A CN 105388882A CN 201510744668 A CN201510744668 A CN 201510744668A CN 105388882 A CN105388882 A CN 105388882A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular 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
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
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- G05B2219/32404—Scada supervisory control and data acquisition
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Abstract
The embodiment of the invention provides a preliminary plan determining method and apparatus of a power grid accident. The method comprises: a grid accident signal is monitored and a fault device and a fault device title are determined according to the grid accident signal; on the basis of the fault device title, searching is carried out on a preset accident preliminary plan model to obtain standby preliminary plans, wherein the accident preliminary plan model contains titles of all fault devices and preliminary plans corresponding to the titles of all fault devices; checking is carried out on all standby preliminary plans according to a preset checking rule to obtain a checked preliminary plan, wherein the operating way of the device corresponding to the checked preliminary plan is identical with the operating way of the fault device after isolation, and the checked preliminary plan is used as a formal preliminary grid accident plan of the fault device. Therefore, a needed preliminary plan can be searched rapidly and accurately. Meanwhile, the searched preliminary plan is checked, so that a problem that the searched preliminary plan is not suitable for the accident because of the large change of the grid topological structure can be solved; and thus safety of the power grid is improved.
Description
Technical field
The present invention relates to dispatching of power netwoks technical field, particularly relate to a kind of power grid accident prediction scheme defining method and device.
Background technology
At present, when electrical network has an accident, yardman mainly relies on existing accident prediction and carries out accident treatment.When yardman is by SCADA (SupervisoryControlAndDataAcquisition, data acquisition and Monitor and Control) system monitoring to power grid accident signal time, judge and localizing faults equipment after, again manual retrieval, identify all accident predictions, after identifying corresponding prediction scheme, then carry out a series of subsequent operation (as load transfer, fault isolation and restore electricity) according to prediction scheme.
After accident occurs, prediction scheme is searched by artificial cognition, due to the energy of people and identification, to search speed limited, this prediction scheme identification query time that will cost needed longer, make the time lengthening processing power grid accident, and often can there is larger change due to topological structure of electric, after identification is searched and is obtained prediction scheme, this dispatch reserve plan obtained after searching may be no longer applicable, simultaneously, by artificial mode, also the correctness of the associative operation in prediction scheme identification search procedure cannot be ensured, the prediction scheme finally obtained is made to be not best prediction scheme, very big hidden danger is brought to the safe operation of electrical network, particularly when certain faulty equipment relates to multiple process prediction scheme, above problem is by particularly evident.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of power grid accident prediction scheme defining method and device, to solve in prior art by artificial cognition and to search prediction scheme, make the time lengthening processing power grid accident, and often can there is larger change due to topological structure of electric, after identification is searched and is obtained prediction scheme, this dispatch reserve plan obtained after searching may be no longer applicable, simultaneously, by artificial mode, also the correctness of the associative operation in prediction scheme identification search procedure cannot be ensured, the prediction scheme finally obtained is made to be not best prediction scheme, the problem of very big hidden danger is brought to the safe operation of electrical network.
For achieving the above object, the embodiment of the present invention provides following technical scheme:
A kind of power grid accident prediction scheme defining method, comprising:
Monitoring power grid accident signal, according to the title of described power grid accident information determination faulty equipment and described faulty equipment;
Title according to described faulty equipment searches the corresponding prediction scheme of described faulty equipment in the accident prediction model preset, obtain alternative prediction scheme, wherein, described accident prediction model comprises: the title of each faulty equipment and the prediction scheme corresponding with the title of each faulty equipment;
Each described alternative prediction scheme is checked according to default check rule, obtain the check prediction scheme by described check, wherein, the method of operation of the corresponding equipment of described check prediction scheme isolate with described faulty equipment after the method for operation identical, using the formal power grid accident prediction scheme of described check prediction scheme as described faulty equipment.
Wherein, described prediction scheme comprises: faulty equipment partition method, power system restoration are powered and transfer load method, surveillance equipment and trend limit value.
Wherein, described described check prediction scheme also to be comprised after the power grid accident prediction scheme of described faulty equipment:
Described formal power grid accident prediction scheme is sent to electrical network;
Control described electrical network and perform described formal power grid accident prediction scheme, recover normally to work.
Wherein, the described formal power grid accident prediction scheme of described control described electrical network execution comprises:
Determine the disconnector that need disconnect according to described faulty equipment partition method, all described disconnectores are disconnected, isolates described faulty equipment;
To power according to described power system restoration and transfer load method is determined to close the recovery switch that need close all described recovery switches, access described surveillance equipment;
The trend limit value of described surveillance equipment is revised as the corresponding trend limit value of described formal power grid accident prediction scheme.
Wherein, describedly according to default check rule, check carried out to each described alternative prediction scheme comprise:
Determine to wait to check alternative prediction scheme, according to described wait to check power system restoration in alternative prediction scheme power and transfer load method determine described in wait to check in alternative prediction scheme the recovery switch needing to close;
To judge in electrical network whether all described in wait to check in alternative prediction scheme the recovery switch needing to close and be all in off-state, if not, then wait described in judging to check alternative prediction scheme by checking;
Judge described in all in electrical network after checking in alternative prediction scheme the recovery switch needing to close and be all closed, described in wait that whether the surveillance equipment of checking in alternative prediction scheme in running order, if not, then wait described in judging to check alternative prediction scheme by check.
Wherein, also comprise after obtaining the check prediction scheme by described check described in:
Judge whether to exist and check prediction scheme;
If do not exist, then show error message, end operation.
Wherein, also comprise after judging whether to there is check prediction scheme described in:
If it is determined that the presence of verification prediction scheme, then judge whether the number of described check prediction scheme is greater than 1;
If be greater than, then determine network operating mode, defect situation and the power load distributing situation after each described check prediction scheme of described faulty equipment enforcement, a check prediction scheme is selected, using the power grid accident prediction scheme of the described check prediction scheme chosen as faulty equipment by described network operating mode, defect situation and power load distributing information summary.
Wherein, described power grid accident signal is the power grid accident signal after merger process and screening.
A kind of power grid accident prediction scheme determining device, comprising: monitoring modular, search module and check module; Wherein,
Described monitoring modular, for monitoring power grid accident signal, according to the title of described power grid accident information determination faulty equipment and described faulty equipment;
Describedly search module, in the accident prediction model preset, the corresponding prediction scheme of described faulty equipment is searched for the title according to described faulty equipment, obtain alternative prediction scheme, wherein, described accident prediction model comprises: the title of each faulty equipment and the prediction scheme corresponding with the title of each faulty equipment;
Described check module, for checking according to default check rule each described alternative prediction scheme, obtain the check prediction scheme by described check, the method of operation of the corresponding equipment of described check prediction scheme isolate with described faulty equipment after the method for operation identical, using the formal power grid accident prediction scheme of described check prediction scheme as described faulty equipment.
Wherein, described accident prediction determining device also comprises: recover module, for sending described formal power grid accident prediction scheme to electrical network, controlling described electrical network and performing described formal power grid accident prediction scheme, recover normally to work;
Described recovery module comprises isolated location, recovery unit and trend unit; Wherein,
Described isolated location, for the disconnector determining to disconnect according to described faulty equipment partition method, disconnects all described disconnectores, isolates described xegregating unit;
Described recovery unit, for power according to described power system restoration and transfer load method is determined to close the recovery switch that need close all described recovery switches, access described surveillance equipment;
Described trend unit, for being revised as the corresponding trend limit value of described power grid accident prediction scheme by the trend limit value of described surveillance equipment.
Wherein, described power grid accident prediction scheme determining device, also comprises: the first judge module and the second judge module; Wherein,
Described first judge module, checking prediction scheme for judging whether to exist, if do not exist, then showing error message, end operation;
Described second judge module, for when it is determined that the presence of check prediction scheme, judge whether the number of described check prediction scheme is greater than 1, if be greater than, then determine network operating mode, defect situation and the power load distributing situation after each described check prediction scheme of described faulty equipment enforcement, a check prediction scheme is selected, using the power grid accident prediction scheme of the described check prediction scheme chosen as faulty equipment by described network operating mode, defect situation and power load distributing information summary.
Based on technique scheme, the power grid accident prediction scheme defining method that the embodiment of the present invention provides and device, monitoring power grid accident signal, according to the power grid accident information determination faulty equipment of monitoring and the title of this faulty equipment, title according to faulty equipment searches the prediction scheme corresponding with this faulty equipment in the accident prediction model preset, obtain alternative prediction scheme, wherein, described accident prediction model comprises: the title of each faulty equipment and the prediction scheme corresponding with the title of each faulty equipment, each alternative prediction scheme is checked according to default check rule, obtain the check prediction scheme by checking, wherein, the method of operation of checking prediction scheme corresponding equipment isolate with this faulty equipment after the method for operation identical, using the formal power grid accident prediction scheme of this check prediction scheme as faulty equipment, after performing described formal power grid accident prediction scheme, the accident that electrical network causes due to this faulty equipment can be solved.Real-Time Monitoring power grid accident signal, once determine that electrical network has an accident, then according to the title of this monitoring power grid accident signal determination faulty equipment with this faulty equipment, and in default accident prediction model, search corresponding prediction scheme according to the title of this faulty equipment, fast and accurately can find the prediction scheme of needs, can reduce and search in prediction scheme process, there is larger change in topological structure of electric, and make the possibility that the prediction scheme found no longer is suitable for, simultaneously, search corresponding prediction scheme in default accident prediction model after, also further the prediction scheme found is checked, using the prediction scheme by checking as formal power grid accident prediction scheme, so, can ensure that no matter whether electrical network larger change occurs searching in prediction scheme process, the formal power grid accident prediction scheme obtained all is made to be applicable to solve relevant device failure problems in this electrical network, efficiently solve the problem that the prediction scheme found out that causes because larger change often occurs topological structure of electric is no longer suitable for, improve the security of electrical network.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The process flow diagram of the power grid accident prediction scheme defining method that Fig. 1 provides for the embodiment of the present invention;
The method flow diagram that electrical network performs formal power grid accident prediction scheme is controlled in the power grid accident prediction scheme defining method that Fig. 2 provides for the embodiment of the present invention;
In the power grid accident prediction scheme defining method that Fig. 3 provides for the embodiment of the present invention to each alternative prediction scheme according to the default method flow diagram of checking rule and checking;
The method flow diagram of screening verification prediction scheme further in the power grid accident prediction scheme defining method that Fig. 4 provides for the embodiment of the present invention;
The system chart of the power grid accident prediction scheme determining device that Fig. 5 provides for the embodiment of the present invention;
Another system chart of the power grid accident prediction scheme determining device that Fig. 6 provides for the embodiment of the present invention;
The structured flowchart of module is recovered in the power grid accident prediction scheme determining device that Fig. 7 provides for the embodiment of the present invention;
The another system chart of the power grid accident prediction scheme determining device that Fig. 8 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The process flow diagram of the power grid accident prediction scheme defining method that Fig. 1 provides for the embodiment of the present invention, fast and accurately can find the prediction scheme of needs, can reduce and search in prediction scheme process, there is larger change in topological structure of electric, and the possibility that the prediction scheme found no longer is suitable for, the prediction scheme found is checked meanwhile, efficiently solve the problem that the prediction scheme found out that causes because larger change often occurs topological structure of electric is no longer suitable for, improve the security of electrical network; With reference to Fig. 1, this power grid accident prediction scheme defining method can comprise:
Step S100: monitoring power grid accident signal, according to the title of described power grid accident information determination faulty equipment and described faulty equipment;
Wherein, the power grid accident signal of monitoring can be the single power grid accident signal from an equipment, also can be the combination power grid accident signal from multiple devices.Accordingly, according to the faulty equipment that this power grid accident signal is determined, can be an equipment, also can be the fault group of multiple devices composition.Concrete, faulty equipment can be bus, circuit, switch and disconnecting link equipment etc.
Optionally, the power grid accident signal of monitoring can be come from SCADA (SupervisoryControlAndDataAcquisition, data acquisition and Monitor and Control) the power grid accident signal of system, now, namely monitoring power grid accident information be the power grid accident signal that monitoring SCADA system is sent, when monitoring power grid accident signal, according to the title of this power grid accident information determination faulty equipment and described faulty equipment.
Optionally, when the power grid accident signal of monitoring is the power grid accident signal coming from SCADA system, before monitoring power grid accident signal, can by first sending Data Data acquisition instructions to SCADA system, make the job information of each equipment in this SCADA system Real-time Collection electrical network, determine the duty of each equipment in electrical network, obtain power grid accident information.
Optionally, the concurrency of the signal sent due to SCADA system and complicacy, more pseudo-alarm signal may be there is in the signal sent by SCADA system, therefore, can after obtaining the signal that SCADA system sends, certain merger is done to this signal and intelligent alarm process is screened, SCADA system is sent signal and converts real, single signal to, monitor this do merger screening after information, that is, the power grid accident signal of monitoring is the power grid accident signal after merger process and screening.
Step S110: the title according to described faulty equipment searches the corresponding prediction scheme of described faulty equipment in the accident prediction model preset, obtain alternative prediction scheme, wherein, described accident prediction model comprises: the title of each faulty equipment and the prediction scheme corresponding with the title of each faulty equipment;
Plurality of devices is there is in electrical network, often kind of equipment all has its corresponding accident prediction, therefore, after according to the title of power grid accident information determination faulty equipment and this faulty equipment, need in the accident prediction model preset, to search the prediction scheme relevant to this faulty equipment obtained by the title of faulty equipment, exclude the accident prediction irrelevant with this faulty equipment, reduce prediction scheme range of choice.
Wherein, when power grid accident signal is from individual equipment, only need filter faults equipment to be the prediction scheme of single faulty equipment to the filtration of prediction scheme, when monitoring trouble-signal and coming from multiple equipment, also need to filter the accident prediction with multiple failure group to the filtration of prediction scheme.
Before carrying out power grid accident prediction scheme and determining, accident prediction model should be preset, should comprise in this accident prediction model preset: the title of each faulty equipment and the prediction scheme corresponding with the title of each faulty equipment, so that after obtaining the title of faulty equipment, in the power grid accident prediction scheme can preset at this, search the corresponding prediction scheme of this faulty equipment.
Optionally, the prediction scheme of preserving in the accident prediction model preset can comprise: faulty equipment partition method, power system restoration are powered and transfer load method, surveillance equipment and trend limit value.All only comprise faulty equipment partition method in existing accident prediction model and power system restoration is powered and transfer load method, and do not comprise surveillance equipment and trend limit value.Like this, after accident prediction traditionally operates, how yardman can only passive understanding accident process, and cannot hold change and the impact thereof of electric network swim before and after accident treatment in advance, and surveillance equipment and trend limit value are brought in accident prediction model and can effectively must be addressed this problem.
Step S120: each described alternative prediction scheme is checked according to default check rule, obtain the check prediction scheme by described check, wherein, the method of operation of the corresponding equipment of described check prediction scheme isolate with described faulty equipment after the method for operation identical, using the formal power grid accident prediction scheme of described check prediction scheme as described faulty equipment.
Because larger change often occurs topological structure of electric, therefore, in the accident prediction model preset, search the alternative prediction scheme obtained by the title of faulty equipment, might not all be suitable for current accident treatment.Therefore, also need to carry out selected in conjunction with power network topology and prediction scheme, each alternative prediction scheme is checked according to default check rule, if alternative prediction scheme is by checking, illustrate this alternative prediction scheme meet accident after method of operation requirement, if alternative prediction scheme is not by checking, this alternative prediction scheme is then described and is not suitable for instructing current accident treatment, automatically this alternative prediction scheme should be given up, finally obtain the method for operation isolate with this faulty equipment after the identical check prediction scheme of the method for operation, using the formal power grid accident prediction scheme of this check prediction scheme as this faulty equipment.
Corresponding prediction scheme is searched in default accident prediction model, after obtaining alternative prediction scheme, further the alternative prediction scheme obtained is checked, using the prediction scheme by checking as formal power grid accident prediction scheme, so, can ensure that no matter whether electrical network larger change occurs searching in prediction scheme process, the formal power grid accident prediction scheme obtained all is made to be applicable to solve relevant device failure problems in this electrical network, efficiently solve the problem that the prediction scheme found out that causes because larger change often occurs topological structure of electric is no longer suitable for, improve the security of electrical network.
Wherein, the method for operation of equipment refers to the overall technological scheme that the electric system that electric power system dispatching department works out is produced and run, and it comprises network topology, generated output, power load distributing.The method of operation has multiple different type, in general, at least comprises normal mode, maintenance mode, temporal fashion etc.Wherein, normal mode is the mode ensureing electric system safe operation in normal state, it is embodied in the method for operation of year, month, day, method of operation when maintenance run is major equipment maintenance in electric system, the object of establishment maintenance run is that system still can normally be run when overhaul of the equipments, temporal fashion is cooperation capital construction, the method for operation adjusts temporarily, and the mode in a short time formulated.
Optionally, after obtaining the formal power grid accident prediction scheme of faulty equipment, this formal power grid accident prediction scheme can be sent to electrical network, control this electrical network and perform this formal power grid accident prediction scheme, this power system restoration is normally worked.
Optionally, electrical network is after receiving formal power grid accident prediction scheme, can by determining the disconnector that need disconnect according to the faulty equipment partition method recorded in this formal power grid accident prediction scheme, all disconnectores are disconnected, isolate described faulty equipment, power system restoration according to recording in this formal power grid accident prediction scheme is powered and transfer load method, determine the recovery switch that need close, all recovery switches are closed, access surveillance equipment, finally the trend limit value of this surveillance equipment is revised as the corresponding trend limit value of this formal power grid accident prediction scheme, carry out formal power grid accident prediction scheme, recover normal work.
Optionally, preset check rule and can comprise following rule: if the recovery switch in alternative prediction scheme is closure state, then checks this alternatives and do not pass through; If performed after alternative prediction scheme, surveillance equipment is not in running status, then check this alternatives and do not pass through.
Optionally, when default check rule comprises rule: if the recovery switch in alternative prediction scheme is closure state, then check this alternatives obstructed out-of-date, can by determining to wait to check alternative prediction scheme, wait to check power system restoration in alternative prediction scheme power and transfer load method according to this, determine that this waits to check in alternative prediction scheme the recovery switch needing to close, judge that the recovery switch that in electrical network, whether all need close all is in off-state, judge that this waits whether check the check of alternative prediction scheme passes through.If the recovery switch that all need are closed is all in off-state, then judge that this waits to check alternative prediction scheme by checking, the recovery switch that no not all need close all is in off-state, then judge that this waits to check alternative prediction scheme not by checking.
Optionally, when default check rule comprises rule: if perform after alternative prediction scheme, surveillance equipment is not in running status, then check this alternatives obstructed out-of-date, can by determining to wait to check alternative prediction scheme, wait to check power system restoration in alternative prediction scheme power and transfer load method according to this, determine that this waits to check in alternative prediction scheme the recovery switch needing to close, judge after the recovery switch that need all in electrical network are closed is all closed, this waits that whether the surveillance equipment of checking in alternative prediction scheme is in running order, judges that this waits whether check the check of alternative prediction scheme passes through.If surveillance equipment is in running order, then judge that this waits to check alternative prediction scheme by checking, no surveillance equipment is not in running order, then judge that this waits to check alternative prediction scheme not by checking.
Optionally, presetting check rule can comprise rule: if the disconnector in alternative prediction scheme is off state, then checks this alternatives and pass through, but needs to confirm further.
Optionally, owing to can getable all alternativess all passing through to check, therefore each described alternative prediction scheme is being checked according to default check rule, after obtaining the check prediction scheme by checking, can also judge whether to exist and check prediction scheme, if do not exist, then illustrate that all alternativess all cannot by checking, then show error message, end operation, if exist, then the scheme existed by checking is described in all alternativess, can using the power grid accident prediction scheme of the check prediction scheme by checking as faulty equipment.
Optionally, after each alternative prediction scheme is checked according to default check rule, the check scheme that two or more pass through to check may be obtained, therefore, each described alternative prediction scheme is being checked according to default check rule, after obtaining the check prediction scheme by checking, if it is determined that the presence of check prediction scheme, then can also judge whether the number of the check prediction scheme obtained is greater than 1, if be not more than 1, namely the verification prediction scheme obtained is 1, then direct using the power grid accident prediction scheme of this verification prediction scheme as faulty equipment, if be greater than 1, then determine this faulty equipment implement each check prediction scheme after network operating mode, defect situation and power load distributing situation, by network operating mode, defect situation and power load distributing information summary select a check prediction scheme, the check prediction scheme this chosen is as the power grid accident prediction scheme of faulty equipment.
Based on technique scheme, the power grid accident prediction scheme defining method that the embodiment of the present invention provides and device, monitoring power grid accident signal, according to the power grid accident information determination faulty equipment of monitoring and the title of this faulty equipment, title according to faulty equipment searches the prediction scheme corresponding with this faulty equipment in the accident prediction model preset, obtain alternative prediction scheme, wherein, described accident prediction model comprises: the title of each faulty equipment and the prediction scheme corresponding with the title of each faulty equipment, each alternative prediction scheme is checked according to default check rule, obtain the check prediction scheme by checking, wherein, the method of operation of checking prediction scheme corresponding equipment isolate with this faulty equipment after the method for operation identical, using the formal power grid accident prediction scheme of this check prediction scheme as faulty equipment, after performing described formal power grid accident prediction scheme, the accident that electrical network causes due to this faulty equipment can be solved.Real-Time Monitoring power grid accident signal, once determine that electrical network has an accident, then according to the title of this monitoring power grid accident signal determination faulty equipment with this faulty equipment, and in default accident prediction model, search corresponding prediction scheme according to the title of this faulty equipment, fast and accurately can find the prediction scheme of needs, can reduce and search in prediction scheme process, there is larger change in topological structure of electric, and make the possibility that the prediction scheme found no longer is suitable for, simultaneously, search corresponding prediction scheme in default accident prediction model after, also further the prediction scheme found is checked, using the prediction scheme by checking as formal power grid accident prediction scheme, so, can ensure that no matter whether electrical network larger change occurs searching in prediction scheme process, the formal power grid accident prediction scheme obtained all is made to be applicable to solve relevant device failure problems in this electrical network, efficiently solve the problem that the prediction scheme found out that causes because larger change often occurs topological structure of electric is no longer suitable for, improve the security of electrical network.
Optionally, Fig. 2 shows in the power grid accident prediction scheme defining method that the embodiment of the present invention provides and controls the method flow diagram that electrical network performs formal power grid accident prediction scheme, and with reference to Fig. 2, the method that this electrical network performs formal power grid accident prediction scheme can comprise:
Step S200: send described formal power grid accident prediction scheme to electrical network;
After obtaining the formal power grid accident prediction scheme of faulty equipment, by sending this formal power grid accident prediction scheme to electrical network, control this electrical network and perform this formal power grid accident prediction scheme, this power system restoration is normally worked.
Step S210: determine the disconnector that need disconnect according to described faulty equipment partition method, disconnects all described disconnectores, isolates described faulty equipment;
Electrical network, after obtaining formal power grid accident prediction scheme, according to the faulty equipment partition method recorded in this formal power grid accident prediction scheme, can be determined the disconnector that need disconnect, is then disconnected by all disconnectores, isolation faulty equipment wherein.
Step S220: to power according to described power system restoration and transfer load method is determined to close the recovery switch that need close all described recovery switches, access described surveillance equipment;
Simultaneously, electrical network, after obtaining formal power grid accident prediction scheme, can be powered and transfer load method according to the power system restoration recorded in this formal power grid accident prediction scheme, the recovery switch that need close, then all recovery switches are closed, access the surveillance equipment recorded in this formal power grid accident prediction scheme.
Wherein, it should be noted that not have logical order relation between step S210 and step S220, can first perform step S210 and perform step S220 again, also can first perform step S220 and perform step S210 again, also can perform step S210 and step S220 simultaneously.
Step S230: the trend limit value of described surveillance equipment is revised as the corresponding trend limit value of described formal power grid accident prediction scheme.
After access surveillance equipment, the trend limit value of the surveillance equipment of access can be revised as the trend limit value recorded in this formal power grid accident prediction scheme at isolated fault equipment, thus not complete and recover the normal work of electrical network.
Optionally, Fig. 3 to show in the power grid accident prediction scheme defining method that the embodiment of the present invention provides each alternative prediction scheme according to the default method flow diagram of checking rule and checking, with reference to Fig. 3, this can comprise the method that each alternative prediction scheme is checked according to default check rule:
Step S300: determine to wait to check alternative prediction scheme, according to described wait to check power system restoration in alternative prediction scheme power and transfer load method determine described in wait to check in alternative prediction scheme the recovery switch needing to close;
Determine after checking alternative prediction scheme, can wait that checking the power system restoration recorded in alternative prediction scheme powers and transfer load method, determines that this waits to check in alternative prediction scheme the recovery switch needing to close according to this.
Step S310: to judge in electrical network whether all described in wait to check in alternative prediction scheme the recovery switch needing to close and be all in off-state, if not, then wait described in judging to check alternative prediction scheme by checking;
Check rule if preset and comprise rule: if the recovery switch in alternative prediction scheme is closure state, then check this alternatives not pass through, then can determine that this is after checking in alternative prediction scheme the recovery switch needing to close, to judge in electrical network that whether all recovery switches that this waits to check the need recorded in alternative prediction scheme closed are all in off-state, judge that this is waited to check alternative prediction scheme and checks and whether pass through.
If the recovery switch that all need are closed is all in off-state, then judge that this waits to check alternative prediction scheme by checking, the recovery switch that no not all need close all is in off-state, then judge that this waits to check alternative prediction scheme not by checking.
Step S320: judge described in all in electrical network after checking in alternative prediction scheme the recovery switch needing to close and be all closed, described in wait that whether the surveillance equipment of checking in alternative prediction scheme in running order, if not, then wait described in judging to check alternative prediction scheme by check.
Check rule if preset and comprise rule: if perform after alternative prediction scheme, surveillance equipment is not in running status, then can determine that this is after checking in alternative prediction scheme the recovery switch needing to close, judge after the recovery switch that need all in electrical network are closed is all closed, this waits that whether the surveillance equipment of checking in alternative prediction scheme is in running order, judges that this waits whether check the check of alternative prediction scheme passes through.
If surveillance equipment is in running order, then judge that this waits to check alternative prediction scheme by checking, no surveillance equipment is not in running order, then judge that this waits to check alternative prediction scheme not by checking.
Optionally, Fig. 4 shows the method flow diagram of screening verification prediction scheme further in the power grid accident prediction scheme defining method that the embodiment of the present invention provides, and with reference to Fig. 4, method of this screening verification prediction scheme further can comprise:
Step S400: judge whether to exist and check prediction scheme;
Owing to can getable all alternativess all by checking, therefore checking according to default check rule each described alternative prediction scheme, after obtaining the check prediction scheme by checking, can also judge whether to exist and checking prediction scheme.
Step S410: if do not exist, then show error message, end operation.
If judge there is not check prediction scheme, then illustrate that all alternativess all by checking, then cannot show error message, end operation.
Step S420: if exist, then judge whether the number of described check prediction scheme is greater than 1;
If it is determined that the presence of check prediction scheme, the scheme existed by checking then is described in all alternativess, but after each alternative prediction scheme is checked according to default check rule, the check scheme that two or more pass through to check may be obtained, therefore, each described alternative prediction scheme being checked according to default check rule, after obtaining the check prediction scheme by checking, can also judge whether the number of the check prediction scheme obtained is greater than 1.
Step S430: if be greater than, then determine network operating mode, defect situation and the power load distributing situation after each described check prediction scheme of described faulty equipment enforcement, a check prediction scheme is selected, using the power grid accident prediction scheme of the described check prediction scheme chosen as faulty equipment by described network operating mode, defect situation and power load distributing information summary.
If judge, the number of the check prediction scheme obtained is not more than 1, namely the verification prediction scheme obtained is 1, then direct using the power grid accident prediction scheme of this verification prediction scheme as faulty equipment, if judge, the number of the check prediction scheme obtained is greater than 1, then by determining that this faulty equipment implements network operating mode, defect situation and power load distributing situation after each check prediction scheme, select a check prediction scheme by network operating mode, defect situation and power load distributing information summary, the check prediction scheme this chosen is as the power grid accident prediction scheme of faulty equipment.
The power grid accident prediction scheme defining method that the embodiment of the present invention provides, fast and accurately can find the prediction scheme of needs, can reduce and search in prediction scheme process, there is larger change in topological structure of electric, and the possibility that the prediction scheme found no longer is suitable for, the prediction scheme found is checked meanwhile, efficiently solve the problem that the prediction scheme found out that causes because larger change often occurs topological structure of electric is no longer suitable for, improve the security of electrical network.
Be introduced the power grid accident prediction scheme determining device that the embodiment of the present invention provides below, power grid accident prediction scheme determining device described below can mutual corresponding reference with above-described power grid accident prediction scheme defining method.
The system chart of the power grid accident prediction scheme determining device that Fig. 5 provides for the embodiment of the present invention, with reference to Fig. 5, this power grid accident prediction scheme determining device can comprise: monitoring modular 100, search module 200 and check module 300; Wherein,
Monitoring modular 100, for monitoring power grid accident signal, according to the title of described power grid accident information determination faulty equipment and described faulty equipment;
Search module 200, in the accident prediction model preset, the corresponding prediction scheme of described faulty equipment is searched for the title according to described faulty equipment, obtain alternative prediction scheme, wherein, described accident prediction model comprises: the title of each faulty equipment and the prediction scheme corresponding with the title of each faulty equipment;
Check module 300, for checking according to default check rule each described alternative prediction scheme, obtain the check prediction scheme by described check, the method of operation of the corresponding equipment of described check prediction scheme isolate with described faulty equipment after the method for operation identical, using the formal power grid accident prediction scheme of described check prediction scheme as described faulty equipment.
Optionally, Fig. 6 shows another system chart of the power grid accident prediction scheme determining device that the embodiment of the present invention provides, and with reference to Fig. 6, this power grid accident prediction scheme determining device can also comprise: recover module 400.
Recover module 400, for sending described formal power grid accident prediction scheme to electrical network, controlling described electrical network and performing described formal power grid accident prediction scheme, recover normally to work.
Optionally, Fig. 7 shows the structured flowchart recovering module 600 in the power grid accident prediction scheme determining device that the embodiment of the present invention provides, and with reference to Fig. 7, this recovery module 600 can comprise: isolated location 410, recovery unit 420 and trend unit 430; Wherein,
Isolated location 410, for the disconnector determining to disconnect according to described faulty equipment partition method, disconnects all described disconnectores, isolates described xegregating unit;
Recovery unit 420, for power according to described power system restoration and transfer load method is determined to close the recovery switch that need close all described recovery switches, access described surveillance equipment;
Trend unit 430, for being revised as the corresponding trend limit value of described power grid accident prediction scheme by the trend limit value of described surveillance equipment.
Optionally, Fig. 8 shows the another system chart of the power grid accident prediction scheme determining device that the embodiment of the present invention provides, and with reference to Fig. 8, this power grid accident prediction scheme determining device can also comprise: the first judge module 500 and the second judge module 600; Wherein,
First judge module 500, checking prediction scheme for judging whether to exist, if do not exist, then showing error message, end operation;
Second judge module 600, for when it is determined that the presence of check prediction scheme, judge whether the number of described check prediction scheme is greater than 1, if be greater than, then determine network operating mode, defect situation and the power load distributing situation after each described check prediction scheme of described faulty equipment enforcement, a check prediction scheme is selected, using the power grid accident prediction scheme of the described check prediction scheme chosen as faulty equipment by described network operating mode, defect situation and power load distributing information summary.
The power grid accident prediction scheme determining device that the embodiment of the present invention provides, fast and accurately can find the prediction scheme of needs, can reduce and search in prediction scheme process, there is larger change in topological structure of electric, and the possibility that the prediction scheme found no longer is suitable for, the prediction scheme found is checked meanwhile, efficiently solve the problem that the prediction scheme found out that causes because larger change often occurs topological structure of electric is no longer suitable for, improve the security of electrical network.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a power grid accident prediction scheme defining method, is characterized in that, comprising:
Monitoring power grid accident signal, according to the title of described power grid accident information determination faulty equipment and described faulty equipment;
Title according to described faulty equipment searches the corresponding prediction scheme of described faulty equipment in the accident prediction model preset, obtain alternative prediction scheme, wherein, described accident prediction model comprises: the title of each faulty equipment and the prediction scheme corresponding with the title of each faulty equipment;
Each described alternative prediction scheme is checked according to default check rule, obtain the check prediction scheme by described check, wherein, the method of operation of the corresponding equipment of described check prediction scheme isolate with described faulty equipment after the method for operation identical, using the formal power grid accident prediction scheme of described check prediction scheme as described faulty equipment.
2. power grid accident prediction scheme defining method according to claim 1, it is characterized in that, described prediction scheme comprises: faulty equipment partition method, power system restoration are powered and transfer load method, surveillance equipment and trend limit value.
3. power grid accident prediction scheme defining method according to claim 2, is characterized in that, describedly described check prediction scheme is also comprised after the power grid accident prediction scheme of described faulty equipment:
Described formal power grid accident prediction scheme is sent to electrical network;
Control described electrical network and perform described formal power grid accident prediction scheme, recover normally to work.
Wherein, the described formal power grid accident prediction scheme of described control described electrical network execution comprises:
Determine the disconnector that need disconnect according to described faulty equipment partition method, all described disconnectores are disconnected, isolates described faulty equipment;
To power according to described power system restoration and transfer load method is determined to close the recovery switch that need close all described recovery switches, access described surveillance equipment;
The trend limit value of described surveillance equipment is revised as the corresponding trend limit value of described formal power grid accident prediction scheme.
4. power grid accident prediction scheme defining method according to claim 2, is characterized in that, describedly carries out check to each described alternative prediction scheme according to default check rule and comprises:
Determine to wait to check alternative prediction scheme, according to described wait to check power system restoration in alternative prediction scheme power and transfer load method determine described in wait to check in alternative prediction scheme the recovery switch needing to close;
To judge in electrical network whether all described in wait to check in alternative prediction scheme the recovery switch needing to close and be all in off-state, if not, then wait described in judging to check alternative prediction scheme by checking;
Judge described in all in electrical network after checking in alternative prediction scheme the recovery switch needing to close and be all closed, described in wait that whether the surveillance equipment of checking in alternative prediction scheme in running order, if not, then wait described in judging to check alternative prediction scheme by check.
5. power grid accident prediction scheme defining method according to claim 1, is characterized in that, described in obtain by described check check prediction scheme after also comprise:
Judge whether to exist and check prediction scheme;
If do not exist, then show error message, end operation.
6. power grid accident prediction scheme defining method according to claim 5, is characterized in that, described in judge whether to exist to check after prediction scheme and also comprise:
If it is determined that the presence of verification prediction scheme, then judge whether the number of described check prediction scheme is greater than 1;
If be greater than, then determine network operating mode, defect situation and the power load distributing situation after each described check prediction scheme of described faulty equipment enforcement, a check prediction scheme is selected, using the power grid accident prediction scheme of the described check prediction scheme chosen as faulty equipment by described network operating mode, defect situation and power load distributing information summary.
7. power grid accident prediction scheme defining method according to claim 1, is characterized in that, described power grid accident signal is the power grid accident signal after merger process and screening.
8. a power grid accident prediction scheme determining device, is characterized in that, comprising: monitoring modular, search module and check module; Wherein,
Described monitoring modular, for monitoring power grid accident signal, according to the title of described power grid accident information determination faulty equipment and described faulty equipment;
Describedly search module, in the accident prediction model preset, the corresponding prediction scheme of described faulty equipment is searched for the title according to described faulty equipment, obtain alternative prediction scheme, wherein, described accident prediction model comprises: the title of each faulty equipment and the prediction scheme corresponding with the title of each faulty equipment;
Described check module, for checking according to default check rule each described alternative prediction scheme, obtain the check prediction scheme by described check, the method of operation of the corresponding equipment of described check prediction scheme isolate with described faulty equipment after the method for operation identical, using the formal power grid accident prediction scheme of described check prediction scheme as described faulty equipment.
9. power grid accident prediction scheme determining device according to claim 8, is characterized in that,
Described accident prediction determining device also comprises: recover module, for sending described formal power grid accident prediction scheme to electrical network, controlling described electrical network and performing described formal power grid accident prediction scheme, recover normally to work;
Described recovery module comprises isolated location, recovery unit and trend unit; Wherein,
Described isolated location, for the disconnector determining to disconnect according to described faulty equipment partition method, disconnects all described disconnectores, isolates described xegregating unit;
Described recovery unit, for power according to described power system restoration and transfer load method is determined to close the recovery switch that need close all described recovery switches, access described surveillance equipment;
Described trend unit, for being revised as the corresponding trend limit value of described power grid accident prediction scheme by the trend limit value of described surveillance equipment.
10. power grid accident prediction scheme determining device according to claim 8, is characterized in that, also comprise: the first judge module and the second judge module; Wherein,
Described first judge module, checking prediction scheme for judging whether to exist, if do not exist, then showing error message, end operation;
Described second judge module, for when it is determined that the presence of check prediction scheme, judge whether the number of described check prediction scheme is greater than 1, if be greater than, then determine network operating mode, defect situation and the power load distributing situation after each described check prediction scheme of described faulty equipment enforcement, a check prediction scheme is selected, using the power grid accident prediction scheme of the described check prediction scheme chosen as faulty equipment by described network operating mode, defect situation and power load distributing information summary.
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