CN106408440A - Power transmission and transformation equipment maintenance plan decision method under power grid emergency state - Google Patents
Power transmission and transformation equipment maintenance plan decision method under power grid emergency state Download PDFInfo
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Abstract
The invention discloses a power transmission and transformation equipment maintenance plan decision method under the power grid emergency state, belonging to the technical field of power system automation. The method includes calculating the maintenance task completion delay loss time correlation factor based on the recovery scheme and target; calculating the maintenance task cost performance through the combination with the maintenance task resource demand information; calculating the sorting factor of the maintenance task by applying the comprehensive probability of fault regeneration of maintenance task related equipment; and determining the maintenance task plan by taking the maintenance task sorting factor as the main body and by taking the principle that the maintenance task resource demand is closest to the residual available resource as an auxiliary. The method provided can improve the utilization efficiency of the maintenance resources under the power grid emergency state, promote the smooth implementation of the recovery pre-arranging plan, provide technical support, improve the handling capability under the power grid emergency state, and reduce the power loss.
Description
Technical field
The invention belongs to power system automation technology field, specifically the present invention relates to a kind of electric network emergency
Power transmission and transforming equipment repair schedule decision-making technique under state.
Background technology
Formulate rational power transmission and transforming equipment repair schedule and be always the problem that Regulation department attaches great importance to,
For the power transmission and transforming equipment repair schedule under electrical network normal operating condition, numerous studies have been carried out, also shape
Become the planning decision-making method that some are practical, both effectively increased the comprehensive benefit of equipment O＆M, be electricity again
Net safe and stable operation provides important leverage.
Affected by factors such as external elements, electrical network power transmission and transforming equipment itself and power dispatch system operation and managements, can
The situation of electric grid large area power cut can occur, electrical network is in emergency rating.Relevant electric network emergency state is disposed
Theoretical research and technical research, generally lay particular emphasis on the optimization of recovery scheme, and overall goals are fast recovery of power supplies,
Reduce loss of outage.Running department in dispatching of power netwoks, generally also carrying out electric network emergency state it is contemplated that formulating
Recovery prediction scheme after large-area power-cuts and black-start scheme, once electric network emergency state, are used for instructing section
Learn and rationally dispose.
Power transmission and transforming equipment large area is impaired and electrical network is in emergency rating and has a certain degree of correlation.For example,
Affected by outside natural calamity, cause power transmission and transforming equipment mass-sending property fault, be to lead to electrical network to be in emergent shape
One of major reason of state.Under electric network emergency state, a lot of equipment may be had to need by maintenance, eliminate
Normal operation could be recovered, effective enforcement of power system restoration scheme seriously relies in impaired power transmission and transforming equipment after defect
Reparation situation.With common power transmission and transforming equipment repair schedule decision comparison, maintenance decision under emergency rating
Feature has：Awaiting Overhaul equipment is many, and maintenance task is many；Available maintenance resource lacks relatively；Maintenance is ageing will
Ask high；Maintenance task scheduling decision-making want close fit recovery scheme it is desirable to Awaiting Overhaul equipment reparation order with
Power system restoration order has uniformity；The target of maintenance task scheduling decision-making is to reduce to recover to postpone the damage causing
Lose.
Therefore, if the feature for power transmission and transforming equipment maintenance decision under electric network emergency state and requirement, study
Go out corresponding repair schedule decision-making technique, make up the deficiency of existing power transmission and transforming equipment repair schedule decision-making technique,
Then it is beneficial to improve the utilization ratio of the maintenance resource under electric network emergency state, facilitate the smooth reality recovering prediction scheme
Apply, significant with minimizing loss of outage hence for improving electric network emergency disposing capacity.
Content of the invention
The present invention seeks to：Feature for power transmission and transforming equipment maintenance decision under electric network emergency state and requirement,
A kind of power transmission and transforming equipment repair schedule decision-making technique under electric network emergency state is provided.The method is to improve electrical network
Overhaul the utilization ratio of resource under emergency rating, facilitate the smooth enforcement recovering prediction scheme, technical support is provided,
Thus improving electric network emergency state disposing capacity, reducing loss of outage.
Specifically, the present invention employs the following technical solutions realization, comprises the following steps：
1) obtain Back ground Information：Run control technology from dispatching of power netwoks and support system and power dispatch system operation and management system
Obtain Back ground Information, including operation of power networks work information, equipment fault stop information, electrical network external environment condition letter
Breath, faulty equipment overhaul resource requirement information, the resource information being currently available for maintenance, candidate's recovery scheme
Information and recovery loss of delay information, and the probabilistic information breaking down again after overhaul of the equipments.
Described equipment fault stop information refers to there is the equipment can not being incorporated into the power networks because of existing defects, needs
Just can put into operation after maintenance defect elimination.Described faulty equipment overhauls the material resources money that resource requirement includes implementing maintenance needs
Source (goods and materials of force-summing device containing people, similarly hereinafter) and the time resource completing maintenance needs, are currently available for overhauling
Resource refer to can be used for implement the material resources of maintenance task；Described candidate's recovery scheme information includes recovering
Path, recovery order and the recovery target in each stage (equipment, generated output and the load putting into operation containing recovery
Deng)；Described recovery loss of delay information refers to the synthesis that the recovery realization of goal time retardation in certain stage causes
Loss, it may include the direct economic benefit of load loss of outage and generated output loss and its indirect economic effect,
It is consistent with the costing bio disturbance mode of recovery scheme optimization, need to be converted to the loss of unit interval；Equipment
The probability breaking down again after maintenance refers to, in the period terminating to emergency rating after equipment reparation, current
Under the external elements and operation of power networks operating mode of prediction, equipment breaks down again needs the probability of maintenance.
2) determine maintenance task and its resource requirement, be divided into following two steps：
The first step is to determine maintenance task, according to equipment fault stop information, determines the equipment needing maintenance；
Based on Network topology, the equipment needing maintenance is grouped, one group of relevant device can be in the same period
Arrange maintenance, constitute a maintenance task；According to this, all Awaiting Overhaul equipment are divided into NJ group, thus shape
Become NJ maintenance task under emergency rating.
Second step is to determine the resource requirement of each maintenance task, overhauls resource requirement information based on single equipment,
In conjunction with electrical network external environmental information, determine the resource requirement of each maintenance task, including this check man of development
Make the material resources needing and the time resource completing maintenance task needs.If the material resources money of i-th maintenance task
Source is NJR (i), time resource is NJT (i).
Task is overhauled to each, executes following steps 3) to step 6)：
3) determine the Restoration stage collection being affected by maintenance task, including following two contents：
Section 1 is to every maintenance task, determines which Restoration stage is affected by.Described Restoration stage is subject to
The impact of maintenance task refers to, the equipment that only maintenance task is related to possesses bringing normally into operation condition, just can carry out
The resuming work of Restoration stage, premise is that maintenance task has completed.Based on restoration path and recovery order side
Case, the search equipment that is related to of maintenance task is grid-connected put into operation after could the normal grid-connected equipment putting into operation, so that it is determined that
The Restoration stage set being affected by every maintenance task.If the Restoration stage set being affected by i-th maintenance task
For NJH (i).
Section 2 is to every maintenance task, determines reversely related maintenance task-set.Described maintenance task anti-
Refer to related maintenance task, only after the equipment that other maintenance tasks are related to recovers to be incorporated into the power networks, this inspection
The equipment that the task of repairing is related to just possesses the condition recovering normally to be incorporated into the power networks.If the reverse phase of i-th maintenance task
Closing maintenance task-set is NJI (i).Based on restoration path and recovery sequence scheme, in recovery process, if the
I item overhauls the equipment that is related to of task and recovers the equipment that grid-connected order must be related in other maintenance tasks and recovers simultaneously
After net, then other maintenance tasks corresponding are listed in set NJI (i).
4) calculate maintenance task and complete the loss of delay time correlation factor.
Described maintenance task completes the loss of delay time correlation factor and refers to, when maintenance task completes to be delayed unit
Between the loss that causes, the implication of here loss is identical with the intension lost in recovery scheme optimization.
It is calculated as follows maintenance task and complete the loss of delay time correlation factor：
Wherein, RLJ (i) be i-th maintenance task complete the loss of delay time correlation factor, γ (j) is belonging to
The importance degree weight coefficient of j-th Restoration stage of NJH (i), WT (j) is belonging to j-th Restoration stage of NJH (i)
Postpone the lost time coefficient correlation recovered.
Further, importance degree weight coefficient γ (j) of described j-th Restoration stage belonging to NJH (i) refers to, this rank
Duan Huifu circuit/significance level in target net for the main transformer, the power transmission and transformation element being recovered according to this stage (bag
Vinculum road and main transformer) number and its electric pressure determine, be calculated as follows：
Wherein, k represents electric pressure, k=1,2,3,4 and 5, represent respectively electric pressure be 750kV,
500kV, 330kV, 220kV and 110kV；C (k) is k-th electric pressure single power transmission and transformation element (bag
Vinculum road and main transformer) significance level coefficient, corresponding above-mentioned 5 electric pressures can distinguish value be 0.9,0.8,
0.6th, 0.5 and 0.3；NM (k) is that the power transmission and transformation element of k-th electric pressure that this stage recovers (includes line
Road and main transformer) number.
Further, described j-th Restoration stage belonging to NJH (i) postpones the lost time coefficient correlation recovered
WT (j) refers to, postpones the unit interval and realizes the loss that the recovery target of j-th Restoration stage causes, here is damaged
The implication lost is identical with the intension of loss in recovery scheme optimization.
5) it is calculated as follows the sexual valence specific factor of maintenance task：
RCJ (i)=NJR (i) * NJT (i)
Wherein, RPJ (i) is the sexual valence specific factor of i-th maintenance task, and RCJ (i) is the inspection of i-th maintenance task
Repair cost；
6) it is calculated as follows the maintenance task ranking factor：
RSJ (i)=RPJ (i) * (1-PF (i))
Wherein, RSJ (i) is i-th maintenance task ranking factor, PF (i) be after the completion of i-th maintenance task extremely
Emergency rating terminates this period and overhauls the combined chance that task relevant device breaks down again.Described maintenance is appointed
Business relevant device includes its directly related equipment and its directly related equipment of reverse inter-related task collection.Described i-th
The directly related equipment of item maintenance task refers to the equipment that this maintenance task is related to.
Further, PF (i) is calculated as follows：
Wherein, PFJ (i) is to terminate this period i-th to emergency rating after i-th maintenance task completes maintenance
The probability that the directly related equipment of maintenance task breaks down again, PFJ (j) is the reversely related inspection of i-th maintenance task
Repair jth item in task-set NJI (i) and overhaul the probability that the directly related equipment of task breaks down again.
7) determine the maintenance task of day part.It is subdivided into following three steps：
The first step is, in the initial time of each period, to determine total adjustable maintenance material resources.
Further, the implication of the initial time of described period is described below：
The initial time of first period is after electrical network occurs emergency rating, to start the moment of maintenance task.
In this moment, all maintenance tasks not yet start, and under all emergency ratings, available maintenance resource is all adjustable.
For other periods, have determined the projected conditions of maintenance task according to the above period, in conjunction with every inspection
Repair the time resource of task needs, determine the initial time of period, principle is that at least one scheduled overhaul is appointed
Business has completed, its maintenance material resources can redistribution.
Described adjustable maintenance material resources refers to, can be used for the material resources arranging newly to overhaul task in current time
Resource, the remaining available resource including previous period initial time and complete in the previous period maintenance task release
Maintenance material resources.
Second step is, to each period, to determine maintenance task by ranking factor.
In initial time, to not actuated maintenance task, by ranking factor order from big to small, increase successively
Plus the maintenance task that this moment starts, and distribute maintenance material resources, to remaining adjustable maintenance material resources
When being unsatisfactory for the material resources demand increasing the next item down maintenance task, stop newly-increased maintenance task.
3rd step is, to each period, the adjustable maintenance material resources of the residue based on above-mentioned second step, to press
The principle closest to remaining available resource and less than remaining available resource for the maintenance task resource demand, all
Do not determine one maintenance task of selection in the maintenance task of plan, last maintenance starting as this period
Task.
Beneficial effects of the present invention are as follows：The present invention is directed in operation of power networks it may happen that large area blackout
The actual conditions impaired with a large amount of power transmission and transforming equipments, feature and requirement that the electric network emergency state that is closely connected is disposed,
Power transmission and transforming equipment repair schedule decision-making technique is proposed.The present invention causes electricity to reduce because maintenance task completes delay
It is target that network recovery postpones the loss bringing, and disposes target with electric network emergency state and has uniformity.The present invention
In conjunction with the resource requirement of maintenance task, the cost performance of task-cycle, meter and maintenance task phase are overhauled in analytical calculation
The combined chance that pass equipment breaks down again, it is considered to available maintenance resource situation, is ranked up to maintenance task,
The engineer applied needs of electric network emergency repair based on condition of component planning decision-making are taken into full account, the maintenance task scheduling obtaining
The result of decision has operability.The present invention can be for improving the utilization effect overhauling resource under electric network emergency state
Rate, facilitates the smooth enforcement recovering prediction scheme, provides technical support, it is possible to increase electric network emergency state disposes energy
Power and minimizing loss of outage.
Brief description
Fig. 1 is the flow chart of the present invention.
Specific embodiment
Simultaneously referring to the drawings the present invention is described in further detail with reference to embodiment.
Embodiment 1：
One embodiment of the present of invention, its step is as shown in Figure 1.
Step 1 described in Fig. 1 is to obtain Back ground Information：Run control technology from dispatching of power netwoks and support system
Obtain Back ground Information with power dispatch system operation and management system, stop transport and believe including operation of power networks work information, equipment fault
Breath, electrical network external environmental information, faulty equipment overhaul resource requirement information, are currently available for the resource of maintenance
Information, candidate's recovery scheme information and recovery loss of delay information, and break down again after overhaul of the equipments
Probabilistic information.
Described equipment fault stop information refers to there is the equipment can not being incorporated into the power networks because of existing defects, needs
Just can put into operation after maintenance defect elimination.Described faulty equipment overhauls the material resources money that resource requirement includes implementing maintenance needs
Source (goods and materials of force-summing device containing people, similarly hereinafter) and the time resource completing maintenance needs, are currently available for overhauling
Resource refer to can be used for implement the material resources of maintenance task；Described candidate's recovery scheme information includes recovering
Path, recovery order and the recovery target in each stage (equipment, generated output and the load putting into operation containing recovery
Deng)；Described recovery loss of delay information refers to the synthesis that the recovery realization of goal time retardation in certain stage causes
Loss, it may include the direct economic benefit of load loss of outage and generated output loss and its indirect economic effect,
It is consistent with the costing bio disturbance mode of recovery scheme optimization, need to be converted to the loss of unit interval；Equipment
The probability breaking down again after maintenance refers to, in the period terminating to emergency rating after equipment reparation, current
Under the external elements and operation of power networks operating mode of prediction, equipment breaks down again needs the probability of maintenance.
Step 2 described in Fig. 1 is to determine maintenance task and its resource requirement.Between analysis faulty equipment
Incidence relation, forms NJ maintenance task under emergency rating, determines that the maintenance resource of each maintenance task needs
Ask.It is divided into following two steps：
The first step is to determine maintenance task, according to equipment fault stop information, determines the equipment needing maintenance；
Based on Network topology, the equipment needing maintenance is grouped, one group of relevant device can be in the same period
Arrange maintenance, constitute a maintenance task；According to this, all Awaiting Overhaul equipment are divided into NJ group, thus shape
Become NJ maintenance task under emergency rating；
Second step is to determine the resource requirement of each maintenance task.Resource requirement information is overhauled based on single equipment,
In conjunction with electrical network external environmental information, determine the resource requirement of each maintenance task, including this check man of development
Make the material resources needing and the time resource completing maintenance task needs.If the material resources money of i-th maintenance task
Source is NJR (i), time resource is NJT (i).If i-th maintenance task has multiple equipment to need to overhaul,
The time resource being needed as i-th maintenance task using the wherein time-consuming repair time.
To NJ maintenance task, the step 3 in enforcement Fig. 1 is to step 6 respectively.
Step 3 described in Fig. 1 is to determine the Restoration stage collection being affected by maintenance task.Every maintenance is appointed
Business, based on recovery scheme, determines which Restoration stage is affected by, and determines its reversely related maintenance task-set.
Including following two contents：
Section 1 is to every maintenance task, determines which Restoration stage is affected by.Described Restoration stage is subject to
The impact of maintenance task refers to, the equipment that only maintenance task is related to possesses bringing normally into operation condition, just can carry out
The resuming work of Restoration stage, premise is that maintenance task has completed.Based on restoration path and recovery order side
Case, the search equipment that is related to of maintenance task is grid-connected put into operation after could the normal grid-connected equipment putting into operation, so that it is determined that
The Restoration stage set being affected by every maintenance task.If the Restoration stage set being affected by i-th maintenance task
For NJH (i).Specifically, the equipment being related to using every maintenance task respectively as starting point, based on recovering road
Footpath and recovery sequence scheme, carry out restoration path forward lookup, until the terminal of restoration path, determine every
The equipment of ability bringing normally into operation after the putting equipment in service that maintenance task is related to, so that it is determined that by every maintenance task shadow
The Restoration stage set ringing.
Section 2 is to every maintenance task, determines reversely related maintenance task-set.Described maintenance task anti-
Refer to related maintenance task, only after the equipment that other maintenance tasks are related to recovers to be incorporated into the power networks, this inspection
The equipment that the task of repairing is related to just possesses the condition recovering normally to be incorporated into the power networks.If the reverse phase of i-th maintenance task
Closing maintenance task-set is NJI (i).Based on restoration path and recovery sequence scheme, in recovery process, if the
I item overhauls the equipment that is related to of task and recovers the equipment that grid-connected order must be related in other maintenance tasks and recovers simultaneously
After net, then other maintenance tasks corresponding are listed in set NJI (i).Specifically, respectively with every inspection
The equipment that the task of repairing is related to, as starting point, based on restoration path and recovery sequence scheme, carries out restoration path
Reverse search, until the starting point of restoration path, in recovery process, if what every maintenance task was related to
The order that equipment recovers grid-connected must be after the equipment that other maintenance tasks are related to recovers grid-connected, then by other
Maintenance task is listed the reversely related of every maintenance task accordingly in and is overhauled in task-set.
Step 4 described in Fig. 1 is to calculate maintenance task i to complete the loss of delay time correlation factor.Based on extensive
Postponement lost time coefficient correlation again, the Restoration stage collection being affected by maintenance task obtaining in conjunction with step 3,
Calculate maintenance task and complete the loss of delay time correlation factor.
Described maintenance task completes the loss of delay time correlation factor and refers to, when maintenance task completes to be delayed unit
Between the loss that causes, the implication of here loss is identical with the intension lost in recovery scheme optimization.
It is calculated as follows maintenance task and complete the loss of delay time correlation factor：
Wherein, RLJ (i) be i-th maintenance task complete the loss of delay time correlation factor, γ (j) is belonging to
The importance degree weight coefficient of j-th Restoration stage of NJH (i), WT (j) is belonging to j-th Restoration stage of NJH (i)
Postpone the lost time coefficient correlation recovered.
Further, importance degree weight coefficient γ (j) of described j-th Restoration stage belonging to NJH (i) refers to, this rank
Duan Huifu circuit/significance level in target net for the main transformer, the power transmission and transformation element being recovered according to this stage (bag
Vinculum road and main transformer) number and its electric pressure determine, be calculated as follows：
Wherein, k represents electric pressure, k=1,2,3,4 and 5, represent respectively electric pressure be 750kV,
500kV, 330kV, 220kV and 110kV；C (k) is k-th electric pressure single power transmission and transformation element (bag
Vinculum road and main transformer) significance level coefficient, corresponding above-mentioned 5 electric pressures can distinguish value be 0.9,0.8,
0.6th, 0.5 and 0.3；NM (k) is that the power transmission and transformation element of k-th electric pressure that this stage recovers (includes line
Road and main transformer) number.
Further, described j-th Restoration stage belonging to NJH (i) postpones the lost time coefficient correlation recovered
WT (j) refers to, postpones the unit interval and realizes the loss that the recovery target of j-th Restoration stage causes, here is damaged
The implication lost is identical with the intension of loss in recovery scheme optimization.
Step 5 described in Fig. 1 is to calculate the sexual valence specific factor of maintenance task.Meter and material resources and time
Resource requirement, calculates the maintenance cost of maintenance task, and the maintenance task obtaining in conjunction with step 4 completes delay and damages
Lose the time correlation factor, calculate the cost performance of maintenance task.
It is calculated as follows the sexual valence specific factor of maintenance task：
RCJ (i)=NJR (i) * NJT (i)
Wherein, RPJ (i) is the sexual valence specific factor of i-th maintenance task, and RCJ (i) is the inspection of i-th maintenance task
Repair cost.
Step 6 described in Fig. 1 is to calculate the maintenance task ranking factor.Related after the completion of meter and maintenance task
The combined chance that equipment breaks down again, the cost performance of the maintenance task obtaining in conjunction with step 5, calculate maintenance
The ranking factor of task i.
It is calculated as follows the maintenance task ranking factor：
RSJ (i)=RPJ (i) * (1-PF (i))
Wherein, RSJ (i) is i-th maintenance task ranking factor, PF (i) be after the completion of i-th maintenance task extremely
Emergency rating terminates this period and overhauls the combined chance that task relevant device breaks down again.Described maintenance is appointed
Business relevant device includes its directly related equipment and its directly related equipment of reverse inter-related task collection.Described i-th
The directly related equipment of item maintenance task refers to the equipment that this maintenance task is related to.
Further, PF (i) is calculated as follows：
Wherein, PFJ (i) is to terminate this period i-th to emergency rating after i-th maintenance task completes maintenance
The probability that the directly related equipment of maintenance task breaks down again, PFJ (j) is the reversely related inspection of i-th maintenance task
Repair jth item in task-set NJI (i) and overhaul the probability that the directly related equipment of task breaks down again.
Step 7 described in Fig. 1 is to determine the maintenance task of day part.With ranking factor from big to small suitable
Sequence is Main principle, can arrange material resources in residue and be not enough to support the adjacent follow-up maintenance task of ranking factor
Resource requirement when, by maintenance task resource demand closest to remaining available resource and less than remaining available
The principle of resource, determines last maintenance task of this period startup, as complementary principle, determines each
The maintenance task of period.
From the moment starting maintenance task, following three steps of circulation execution, step 7-1 in corresponding Fig. 1)
To step 7-3), until all NJ maintenance task all schemes of arrangement terminate.
Step 7-1 described in Fig. 1) it is to determine the initial time of period, and its adjustable maintenance material resources.
In the initial time of each period, determine total adjustable maintenance material resources.
Further, the implication of the initial time of described period is described below：
The initial time of first period is after electrical network occurs emergency rating, to start the moment of maintenance task,
Now all maintenance tasks not yet start, available maintenance resource is all adjustable under all emergency ratings.
For other periods, have determined the projected conditions of maintenance task according to the above period, in conjunction with every inspection
Repair the time resource of task needs, determine the initial time of period, principle is that at least one scheduled overhaul is appointed
Business has completed, its maintenance material resources can redistribution.
Further, described adjustable maintenance material resources refers to, can be used for arranging newly-increased maintenance in current time
The material resources of task, the remaining available resource including previous period initial time and complete in the previous period examine
Repair the maintenance material resources of task release.
Step 7-2 described in Fig. 1) it is to determine, by ranking factor, the maintenance task starting.From each period
Begin the moment, determine newly-increased startup maintenance task by ranking factor principle from big to small.
Further, the process of described determination newly-increased startup maintenance task is, in initial time, to not actuated
Maintenance task, by ranking factor order from big to small, increases the maintenance task of this moment startup successively, and
Material resources is overhauled in distribution, is unsatisfactory for increasing the next item down maintenance task to remaining adjustable maintenance material resources
During material resources demand, stop newly-increased maintenance task.
Step 7-3 described in Fig. 1) it is by maintenance task resource demand, former closest to remaining available resource
Then, determine last maintenance task of this moment startup.
Further, the process of last maintenance task of described determination is, to each period, based on above-mentioned step
Rapid 7-3) the residue adjustable maintenance material resources that obtains, in the maintenance task excluding startup plan, search
Rope overhaul task resource demand closest to remaining available resource and less than remaining available resource maintenance task,
Last maintenance task starting as this period.
In sum, said method is directed in operation of power networks it may happen that large area blackout and defeated change in a large number
The impaired actual conditions of electric equipment, the electric network emergency state that is closely connected dispose feature and requirement, with reduce because
Maintenance task completes to be delayed and causes power system restoration to postpone the loss bringing for target, proposes power transmission and transforming equipment maintenance
Planning decision-making method.Based on recovery scheme and target, calculate maintenance task complete loss of delay time correlation because
Son；In conjunction with maintenance task resource demand information, calculate maintenance task cost performance；Then apply maintenance task phase
The combined chance that pass equipment breaks down again, calculates the ranking factor of maintenance task；With overhaul task ranking because
Son is main body from big to small, to overhaul task resource demand closest to the principle supplemented by remaining available resource, really
Determine the maintenance task scheduling under emergency rating.The emergency rating power transmission and transforming equipment repair schedule that the method proposes is determined
Plan method causes power system restoration to postpone the loss bringing as target to reduce because maintenance task completes to be delayed, with electricity
Net emergency rating is disposed target and is had uniformity；The method combines the resource requirement of maintenance task, analytical calculation
The cost performance of maintenance task-cycle is it is considered to available maintenance resource situation, meter and maintenance task relevant device are sent out again
The probability of raw fault, has taken into full account the engineer applied needs of electric network emergency repair based on condition of component planning decision-making, has obtained
The maintenance task scheduling result of decision there is operability.The method is to improve maintenance money under electric network emergency state
The utilization ratio in source, facilitates the smooth enforcement recovering prediction scheme, provides technical support, it is possible to increase electric network emergency
State disposing capacity, reduces loss of outage.
Although the present invention is open as above with preferred embodiment, embodiment is not for limiting the present invention's.
Without departing from the spirit and scope of the invention, any equivalence changes done or retouching, also belong to this
Bright protection domain.The content that therefore protection scope of the present invention should be defined with claims hereof
For standard.
Claims (3)
1. the power transmission and transforming equipment repair schedule decision-making technique under a kind of electric network emergency state is it is characterised in that wrap
Include following steps：
1) obtain Back ground Information：Run control technology from dispatching of power netwoks and support system and power dispatch system operation and management system
Obtain Back ground Information, including operation of power networks work information, equipment fault stop information, electrical network external environment condition letter
Breath, faulty equipment overhaul resource requirement information, the resource information being currently available for maintenance, candidate's recovery scheme
The probabilistic information breaking down again after information and recovery loss of delay information and overhaul of the equipments；
2) maintenance task and its resource requirement are determined：According to equipment fault stop information, determine and need maintenance
Equipment；Based on Network topology, the equipment needing maintenance is grouped, one group of relevant device is same
Period arranges maintenance, constitutes a maintenance task, thus NJ maintenance task under forming emergency rating；Base
Overhaul resource requirement information in single equipment, in conjunction with electrical network external environmental information, determine each maintenance task
Resource requirement, including material resources and time resource, described material resources force-summing device containing people；If i-th inspection
The material resources repairing task is NJR (i), time resource is NJT (i)；
3) determine the Restoration stage collection being affected by maintenance task：Based on restoration path scheme, search for maintenance task and relate to
And putting equipment in service after the equipment that could normally be incorporated into the power networks, so that it is determined that by every maintenance task affected extensive
Multiple stage set, if the Restoration stage collection being affected by i-th maintenance task is combined into NJH (i)；Based on restoration path
Scheme, determines the reversely related maintenance task-set of every maintenance task, if the reverse correlation of i-th maintenance task
Maintenance task-set is NJI (i), in restoration path, if the equipment recovery order that i-th maintenance task is related to
Then other maintenance tasks corresponding must be listed in set after the equipment that other maintenance tasks are related to recovers
In NJI (i)；
4) it is calculated as follows maintenance task and complete the loss of delay time correlation factor：
Wherein, RLJ (i) be i-th maintenance task complete the loss of delay time correlation factor；γ (j) is belonging to
The importance degree weight coefficient of j-th Restoration stage of NJH (i), the circuit being recovered according to this stage and the number of main transformer
And its electric pressure determines；J-th Restoration stage that WT (j) is belonging to NJH (i) postpones the lost time recovered
Coefficient correlation；
5) it is calculated as follows the sexual valence specific factor of maintenance task：
RCJ (i)=NJR (i) * NJT (i)
Wherein, RPJ (i) is the sexual valence specific factor of i-th maintenance task, and RCJ (i) is the inspection of i-th maintenance task
Repair cost；
6) it is calculated as follows the maintenance task ranking factor：
RSJ (i)=RPJ (i) * (1-PF (i))
Wherein, RSJ (i) is i-th maintenance task ranking factor, and PF (i) is calculated as follows：
Wherein, PFJ (i) is to terminate this period i-th to emergency rating after i-th maintenance task completes maintenance
The probability that the directly related equipment of maintenance task breaks down again, PFJ (j) is the reversely related inspection of i-th maintenance task
Repair jth item in task-set NJI (i) and overhaul the probability that the directly related equipment of task breaks down again；
7) determine the maintenance task of day part：To each period, it is first determined period initial time can use maintenance
Material resources；Then, to the maintenance task not determining plan, by ranking factor order from big to small, according to
The secondary maintenance task increasing the startup of this moment, and distribute maintenance resource, until remaining maintenance resource is unsatisfactory for increasing
Plus the next item down overhaul task resource requirement when, by maintenance task resource demand closest to remaining available resource and
Less than the principle of remaining available resource, all maintenance tasks not determining plan are chosen a maintenance and appoints
Business, last maintenance task starting as this period.
2. the power transmission and transforming equipment repair schedule decision-making technique under electric network emergency state according to claim 1,
It is characterized in that, described step 3) in determine that the method for Restoration stage set being affected by items maintenance task is：
The equipment being related to using every maintenance task respectively as starting point, based on restoration path with recover sequence scheme,
Carry out restoration path forward lookup, until the terminal of restoration path, determine the equipment that every maintenance task is related to
The equipment of ability bringing normally into operation after putting into operation, so that it is determined that the Restoration stage set being affected by every maintenance task.
3. the power transmission and transforming equipment repair schedule decision-making technique under electric network emergency state according to claim 1,
It is characterized in that, described step 3) in determine that the method for reversely related maintenance task-set of every maintenance task is：
The equipment being related to using every maintenance task respectively as starting point, based on restoration path with recover sequence scheme,
Carry out restoration path reverse search, until the starting point of restoration path, in recovery process, if every inspection
Equipment that the task of repairing is related to recover the equipment that grid-connected order must be related in other maintenance tasks recover grid-connected it
Afterwards, then other maintenance tasks are listed in the reversely related of every maintenance task accordingly to overhaul in task-set.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107832965A (en) * | 2017-11-21 | 2018-03-23 | 中国运载火箭技术研究院 | A kind of fast sound track rescue mode and system |
| CN107909166A (en) * | 2017-12-21 | 2018-04-13 | 贵州电网有限责任公司 | Low-voltage distribution transformer platform district troubleshooting decision-making technique based on intelligent terminal |
| CN111340257A (en) * | 2020-03-13 | 2020-06-26 | 贵州电网有限责任公司 | Optimization method and system for maintenance plan of power transmission equipment based on risk analysis |
| CN113296457A (en) * | 2021-07-27 | 2021-08-24 | 四川观想科技股份有限公司 | Intelligent operation and maintenance management and control system for monitoring front-end equipment |
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| CN105069516A (en) * | 2015-06-19 | 2015-11-18 | 国家电网公司 | Electric transmission and transformation equipment monthly maintenance schedule coordination method based on integrated risk |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107832965A (en) * | 2017-11-21 | 2018-03-23 | 中国运载火箭技术研究院 | A kind of fast sound track rescue mode and system |
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| CN111340257A (en) * | 2020-03-13 | 2020-06-26 | 贵州电网有限责任公司 | Optimization method and system for maintenance plan of power transmission equipment based on risk analysis |
| CN111340257B (en) * | 2020-03-13 | 2022-09-13 | 贵州电网有限责任公司 | Optimization method and system for maintenance plan of power transmission equipment based on risk analysis |
| CN113296457A (en) * | 2021-07-27 | 2021-08-24 | 四川观想科技股份有限公司 | Intelligent operation and maintenance management and control system for monitoring front-end equipment |
| CN113296457B (en) * | 2021-07-27 | 2021-11-02 | 四川观想科技股份有限公司 | Intelligent operation and maintenance management and control system for monitoring front-end equipment |
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