CN109301825A - A kind of load transfer method, apparatus, terminal device and the storage medium of power distribution network - Google Patents

A kind of load transfer method, apparatus, terminal device and the storage medium of power distribution network Download PDF

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Publication number
CN109301825A
CN109301825A CN201811471604.9A CN201811471604A CN109301825A CN 109301825 A CN109301825 A CN 109301825A CN 201811471604 A CN201811471604 A CN 201811471604A CN 109301825 A CN109301825 A CN 109301825A
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China
Prior art keywords
day
load
distribution network
power distribution
maintenance
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Granted
Application number
CN201811471604.9A
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Chinese (zh)
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CN109301825B (en
Inventor
张瑞雪
冷磊磊
马志斌
秦锋蕴
陈立新
王立福
赵超阳
张玉涛
王川
杨杰
魏建新
李刚
靳冀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aletai Power Supply Co Of Xinjiang Power Co Ltd
Bazhou Power Supply Co Of Xinjiang Power Co Ltd
National Network Xinjiang Electric Power Co Ltd
Turpan Power Supply Co Of Xinjiang Power Co Ltd
Urumqi Power Supply Co Of Xinjiang Power Co Ltd
Beijing Kedong Electric Power Control System Co Ltd
Original Assignee
Aletai Power Supply Co Of Xinjiang Power Co Ltd
Bazhou Power Supply Co Of Xinjiang Power Co Ltd
National Network Xinjiang Electric Power Co Ltd
Turpan Power Supply Co Of Xinjiang Power Co Ltd
Urumqi Power Supply Co Of Xinjiang Power Co Ltd
Beijing Kedong Electric Power Control System Co Ltd
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Application filed by Aletai Power Supply Co Of Xinjiang Power Co Ltd, Bazhou Power Supply Co Of Xinjiang Power Co Ltd, National Network Xinjiang Electric Power Co Ltd, Turpan Power Supply Co Of Xinjiang Power Co Ltd, Urumqi Power Supply Co Of Xinjiang Power Co Ltd, Beijing Kedong Electric Power Control System Co Ltd filed Critical Aletai Power Supply Co Of Xinjiang Power Co Ltd
Priority to CN201811471604.9A priority Critical patent/CN109301825B/en
Publication of CN109301825A publication Critical patent/CN109301825A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

The application provides load transfer method, apparatus, terminal device and the storage medium of a kind of power distribution network, is related to power supply technique field.This method is predicted by the load condition for the maintenance day overhauled to power distribution network, is carried out the load transfer scheme of load transfer to power distribution network according to prediction result analysis, is determined the load transfer scheme for carrying out load transfer to power distribution network.Method provided by the present application solves in the load transfer method of the prior art, and load transfer scheme is determined according to the information on load at distribution network failure moment, thus not can guarantee power distribution network overhaul the moment carry out load transfer after operational safety the problem of.

Description

A kind of load transfer method, apparatus, terminal device and the storage medium of power distribution network
Technical field
This application involves power supply technique fields, in particular to a kind of load transfer method based on load prediction, dress It sets, terminal device and storage medium.
Background technique
With the development of distribution network automated technology, load transfer technology is gradually by Utilities Electric Co. and research staff Pay attention to.It is inessential negative by the operation of switch and part after load transfer refers to that power distribution network breaks down and is isolated The excision of lotus, under conditions of meeting security constraint, quickly it is preferential restore fault down stream due to being influenced by failure power loss it is important While load is powered, also restore the power supply of other loads as far as possible.Load transfer can be substantially reduced failure bring because of it Loss improves system power supply reliability and power supply quality, and more and more Utilities Electric Co.s and research staff are added to pair The research of its technology.
In the prior art, the method for load transfer be mainly by distribution network failure occur the moment information on load into Row statistics, the information on load at moment occurs according to electric network fault, and analysis obtains the load transfer scheme of power distribution network.However the application Inventor has found that it is certain to being carved with when trouble hunting that the moment occurs for failure when realizing the technical solution in the embodiment of the present application From failure occurs for time delay, power distribution network the moment to trouble hunting moment, and load condition may have occurred that change, because This, the prior art is poor according to the load transfer scheme timeliness that fault moment determines, not can guarantee power distribution network at the maintenance moment Or maintenance day carries out the safety run after load transfer.
Summary of the invention
Load transfer method, apparatus, terminal device and the storage medium of power distribution network provided by the embodiments of the present application, can solve Distribution network load certainly in the prior art turn for load transfer scheme timeliness is poor existing for method, not can guarantee power distribution network into After row load transfer the technical issues of safety in operation.
To achieve the goals above, the embodiment of the present application the technical solution adopted is as follows:
In a first aspect, a kind of load transfer method of power distribution network provided by the embodiments of the present application, comprising: obtain and need to matching The maintenance day that power grid is overhauled；Load condition to the power distribution network in the maintenance day is predicted；Based on load prediction The load transfer scheme of load transfer is carried out to the power distribution network in the maintenance day as a result, determining.
In the embodiment of the present application, by the way that is occurred for power distribution network to load condition between the trouble hunting moment moment in failure May changed factor take into account, to power distribution network maintenance day load condition predict, and be based on load prediction The load transfer scheme of load transfer is carried out to the power distribution network in the maintenance day as a result, determining, is improved power distribution network and is being examined Repair the safety and reliability for carrying out running after load transfer constantly.
With reference to first aspect, the embodiment of the present application provides the first possible embodiment of first aspect, described To the power distribution network it is described maintenance day load condition predict, comprising: determine before the maintenance day, and with it is described Day similar M days similar days are overhauled, the M is the integer more than or equal to 1；Obtain N number of time point in the M days similar days Load, the N are the integer greater than 1；According to the load at N number of time point of the M days similar days, with linear outer Pushing manipulation calculates the load prediction results at N number of time point of the maintenance day.
In the embodiment of the present application, the similar day of day is overhauled by obtaining power distribution network, and is calculated in conjunction with linear extrapolation Power distribution network overhauls the load prediction results of day, can guarantee the accuracy that the prediction of daily load situation is overhauled to power distribution network.
The possible embodiment of with reference to first aspect the first, the embodiment of the present application provide second of first aspect Possible embodiment, when the maintenance day be festivals or holidays when, the determination before the maintenance day, and with the maintenance Day similar M days similar days, comprising: be described to overhaul the first of day on the day before the vacation for determining festivals or holidays belonging to the maintenance day Similar day；It is the second phase of the maintenance day on the day before determining the vacation for belonging to identical festivals or holidays day with the maintenance in the previous year Like day；If the maintenance day is first day of vacation festivals or holidays, it is determined that belong to identical section vacation in the previous year with the maintenance day Vacation first day of day is the third similar day for overhauling day；If the maintenance day is the last day of festivals or holidays, Huo Zhesuo State the vacation number of days of festivals or holidays identical greater than the previous year as the number of days of festivals or holidays first day difference maintenance day, it is determined that in the previous year Last day vacation of festivals or holidays identical as the maintenance day is the third similar day of the maintenance day；If the maintenance day is not First day of vacation festivals or holidays or last day, and first day vacation number of days differed of the maintenance day and the festivals or holidays P is less than the vacation number of days of festivals or holidays identical as the maintenance day in the previous year, it is determined that identical as the maintenance day in the previous year That day that first day vacation number of days different of festivals or holidays is P is the third similar day of the maintenance day, wherein the P is greater than 1 Integer.
In the embodiment of the present application, when obtaining the similar day of power distribution network maintenance day, the specific factors such as festivals or holidays are considered Enter, can make the load condition of the power distribution network similar day obtained that there is better phase in the load condition of maintenance day with power distribution network Like degree, to keep the load prediction results to power distribution network similar day more accurate.
The possible embodiment of second with reference to first aspect, the embodiment of the present application provide the third of first aspect Possible embodiment, the load at N number of time point according to the M days similar days, with linear extrapolation, Calculate the load prediction results at N number of time point of the maintenance day, comprising: calculate separately first similar day, described The peak load value and minimal negative charge values of second similar day, the third similar day；Determine first similar day, described second Reference peak load value in similar day, the third similar day, wherein described similar for described first with reference to peak load value Day peak load value and second similar day peak load value and, with the peak load value of the third similar day Difference；Determine first similar day, second similar day, the reference minimal negative charge values in the third similar day, wherein institute State with reference to minimal negative charge values be first similar day minimal negative charge values and second similar day minimal negative charge values and, With the difference of the minimal negative charge values of the third similar day；The load value at N number of time point in the third similar day is done Change processing is marked, the mark for obtaining N number of time point of the third similar day changes load value；Peak load value is referred to according to described Change load value with reference to minimal negative charge values and the mark with described, calculates the load prediction knot at maintenance day at N number of time point Fruit.
Correspondingly, the first possible embodiment with reference to first aspect, described if the maintenance day is not festivals or holidays The load at N number of time point according to the M days similar days calculate the institute of the maintenance day with linear extrapolation State the load prediction results at N number of time point, comprising: the load at N number of time point according to the M days similar days Amount calculates the load prediction results at N number of time point of the maintenance day, comprising: need to described with linear extrapolation The load at N number of time point of M days similar days is pre-processed, and N number of time point of the M days similar days is obtained Load pretreatment values；According to the load pretreatment values at N number of time point of the M days similar days, the M days phases are calculated Like maximal workload daily in day and minimum load amount；Determine the load of the M days similar days in predictive maintenance daily load Shared weight during amount；It is shared during predictive maintenance daily load amount according to the load of the M days similar days Weight and the M days similar days in daily maximal workload and minimum load amount, calculate the flat of the M days similar days Maximum, minimum load amount；N number of time point load of the M days similar days is carried out to mark change processing, calculating M days similar The mark change value of the N point load amount of day；According to the load of M days similar days power shared in predictive maintenance daily load amount The mark change value of N number of time point load of weight and the M days similar days, the load for calculating maintenance day at N number of time point are flat Equal per unit value；Be averaged per unit value according to maintenance day at N number of time point corresponding load, calculate the maintenance day it is N number of when Between the load put be averaged the per unit value of per unit value；It is averaged the mark of per unit value according to the load at maintenance day at N number of time point Average maximum, the minimum load amount of value and the M days similar days, calculates the negative of N number of time point of the maintenance day Prediction result.
In the embodiment of the present application, in the information on load according to power distribution network similar day, load is carried out with linear extrapolation When prediction, according to whether being festivals or holidays to select corresponding load forecasting method, it can increase and the similar daily load of power distribution network is believed Breath carries out the accuracy of the prediction result of load prediction.
The possible embodiment of second with reference to first aspect, the embodiment of the present application provide the 4th kind of first aspect Possible embodiment, the load at N number of time point according to the M days similar days, with linear extrapolation, After the load prediction results for calculating N number of time point of the maintenance day, further includes: according to institute in the M days similar days The temperature information and the load at N number of time point at N number of time point are stated, N number of time point of the maintenance day is calculated Temperature difference corrected output；According to the temperature difference corrected output at N number of time point bearing to the N number of time point for overhauling day Lotus prediction result is modified.
In the embodiment of the present application, after the load condition to power distribution network maintenance day is predicted, the temperature of day will be overhauled Information is taken into account, according to the temperature information calculating temperature difference corrected output of maintenance day and similar day, according to temperature difference corrected output pair The load prediction results of power distribution network maintenance day are modified, and can further increase the accuracy of load prediction results.
The 4th kind of possible embodiment with reference to first aspect, the embodiment of the present application provide the 5th kind of first aspect Possible embodiment, it is described to be based on load prediction results, it determines and load transfer is carried out to the power distribution network in the maintenance day Load transfer scheme, comprising: be based on the load prediction results, judge to whether there is in the maintenance day power distribution network Independently turn power supply source；If existing in the maintenance day power distribution network and independently turning power supply source, determination is carried out using independent current source Turning the scheme supplied is the load transfer scheme.
In the embodiment of the present application, judging, which whether there is in the maintenance day power distribution network, independently turns power supply source, from And judge whether that independent current source, which can be used, carries out load transfer to power distribution network, it is with the load prediction results of power distribution network maintenance day It for foundation, and is that the load condition of day is occurred as foundation using distribution network failure in the prior art.Therefore, the application based on distribution The load prediction results of net maintenance day, judging, which whether there is in the maintenance day power distribution network, independently turns power supply source, thus Judge whether to can be used the method that independent current source carries out load transfer to power distribution network, the method than the prior art more can guarantee and match Power grid carries out the safety of load transfer in maintenance day.
The 5th kind of possible embodiment with reference to first aspect, the embodiment of the present application provide the 6th kind of first aspect Possible embodiment, the load condition to the power distribution network in the maintenance day are predicted, comprising: in the maintenance day In, determine N number of time point, N is the integer greater than 1；Respectively to the power distribution network N number of time point load condition into Row prediction；
It is corresponding, it is described to be based on the load prediction results, judge to whether there is in the maintenance day power distribution network Independently turn power supply source, comprising: according to the load prediction results at N number of time point, obtain the distribution at N number of time point Net wait turn for load；Each residue for turning power supply source for obtaining the power distribution network at N number of time point can carry capacity；Judgement With the presence or absence of at least one independent current source, at least one described independent current source is all satisfied the residue at N number of time point can Capacity is carried greater than described wait turn for load；At least one described independent current source if it exists, characterizes in the power distribution network that there are institutes It states and independently turns power supply source.
In the embodiment of the present application, judge whether there is independent current source be all satisfied the residue at N number of time point can Capacity is carried greater than described wait turn for load, thus judge to whether there is in the method for independently turning power supply source in power distribution network, Be using the load prediction results at N number of time point to power distribution network maintenance day as foundation, and be in the prior art with power distribution network therefore The load prediction results that N number of time point of day occurs for barrier are foundation.Therefore, power distribution network is judged using the method for the embodiment of the present application There is higher accuracy than the method for utilizing the prior art with the presence or absence of power supply source is independently turned.
The 5th kind of possible embodiment with reference to first aspect, the embodiment of the present application provide the 7th kind of first aspect Possible embodiment is judging in the maintenance day power distribution network with the presence or absence of after independently turning power supply source, the base In load prediction results, determines and carries out the load transfer scheme of load transfer to the power distribution network in the maintenance day, further includes: If being based on the load prediction results there is no power supply source is independently turned in the maintenance day power distribution network, judging described The power supply for whether having multiple power supplys to share load jointly in the maintenance day power distribution network shares turning solution；If in the maintenance day There are the power supplys to share turning solution for the power distribution network, determines that sharing power supply turning solution is the load transfer scheme.
In the embodiment of the present application, judge whether there are multiple power supplys to share jointly in the maintenance day power distribution network negative The power supply of lotus shares turning solution, thus judge whether there is share power supply turning solution to power distribution network carry out load transfer, be with The load prediction results that power distribution network overhauls day are foundation, and are that the load condition that day occurs with distribution network failure is in the prior art Foundation.Therefore, the load prediction results based on power distribution network maintenance day of the application, judge in the maintenance day power distribution network With the presence or absence of independently turning power supply source, thus judge whether that the method that independent current source carries out load transfer to power distribution network can be used, Method than the prior art more can guarantee power distribution network in the safety of maintenance day progress load transfer.
The 7th kind of possible embodiment with reference to first aspect, the embodiment of the present application provide the 8th kind of first aspect Possible embodiment, the load condition to the power distribution network in the maintenance day are predicted, comprising: in the maintenance day In, determine N number of time point, N is the integer greater than 1；Respectively to the power distribution network N number of time point load condition into Row prediction；
It is corresponding, it is described to be based on the load prediction results, judge whether to have in the maintenance day power distribution network more The power supply that a power supply shares load jointly shares turning solution, comprising: according to the load prediction results at N number of time point, obtains Take the power distribution network at N number of time point wait turn for load；It obtains each in the power distribution network at N number of time point The residue for turning power supply source can carry capacity；According in N number of time point the power distribution network at first time point wait turn for negative Lotus amount and each residue for turning power supply source can carry capacity, calculate first time point corresponding each power supply source that turns Amortization ratio；According to first time point corresponding each amortization ratio for turning power supply source, each turn of power supply is calculated Source turns for range；According to it is described it is each turn power supply source turn for range, that formulates the power distribution network shares turning solution；Judge institute It states the described of power distribution network and shares turning solution, if all meet at N number of time point: nothing turns power supply source in the power distribution network Overload；All meet at N number of time point if it exists: in the power distribution network without turn power supply source overload share turning solution, It is characterized in the power supply for sharing load jointly there are multiple power supplys in the maintenance day power distribution network and shares turning solution.
In the embodiment of the present application, it judges whether there is and all meets at N number of time point of distribution maintenance day: in the distribution Share turning solution without turn power supply source overload in net, to judge to share the side of turning solution with the presence or absence of power supply in power distribution network In method, it is using the load prediction results at N number of time point to power distribution network maintenance day as foundation, and is with power distribution network in the prior art Failure occur day N number of time point load prediction results be foundation.Therefore, matched using the method judgement of the embodiment of the present application Power grid shares turning solution than having higher accuracy using the method for the prior art with the presence or absence of power supply.
Second aspect, a kind of load transfer device of power distribution network provided by the embodiments of the present application, comprising: obtain module, use In the maintenance day that acquisition needs to overhaul power distribution network；Prediction module, for being born to the power distribution network in the maintenance day Lotus situation is predicted；Determining module is determined and is carried out in the maintenance day to the power distribution network for being based on load prediction results The load transfer scheme of load transfer.
The third aspect, a kind of terminal device provided by the embodiments of the present application, comprising: memory, processor and be stored in In the memory and the computer program that can run on the processor, when the processor executes the computer program Realize the load transfer method of the power distribution network in above-mentioned first aspect.
Fourth aspect, a kind of storage medium provided by the embodiments of the present application are stored with instruction on the storage medium, work as institute Instruction is stated when running on computers, so that the computer executes the load transfer side of the power distribution network in above-mentioned first aspect Method.
Other feature and advantage of the disclosure will illustrate in the following description, alternatively, Partial Feature and advantage can be with Deduce from specification or unambiguously determine, or by implement the disclosure above-mentioned technology it can be learnt that.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the flow chart of the load transfer method of power distribution network in the embodiment of the present application；
Fig. 2 is the another flow chart of the load transfer method of power distribution network in the embodiment of the present application；
Fig. 3 is a kind of schematic diagram of power distribution network in the embodiment of the present application；
Fig. 4 is a kind of maintenance period load variations curve of power distribution network in the embodiment of the present application；
Fig. 5 be power distribution network in the embodiment of the present application load transfer device functional block diagram.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Ground description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Therefore, with Under claimed scope of the present application is not intended to limit to the detailed description of the embodiments herein provided in the accompanying drawings, But it is merely representative of the selected embodiment of the application.Based on embodiments herein, those skilled in the art are not going out Every other embodiment obtained, shall fall in the protection scope of this application under the premise of creative work.
First embodiment
Present embodiments provide a kind of load transfer method of power distribution network, it should be noted that illustrate in the process of attached drawing Out the step of, can execute in a computer system such as a set of computer executable instructions, although also, in flow charts Logical order is shown, but in some cases, it can be with the steps shown or described are performed in an order that is different from the one herein. It describes in detail below to the present embodiment.
Referring to Fig. 1, the flow chart of the load transfer method for power distribution network provided by the embodiments of the present application, this method packet It includes: step S100, step S200, step S300.
Step S100: the maintenance day for needing to overhaul power distribution network is obtained；
When power distribution network breaks down, need to obtain the maintenance day overhauled to power distribution network, the maintenance day is according to power distribution network Failure seriousness, the difference of the factors such as arrangement of time of maintenance worker, can be on the day of day occurs for failure, be also possible to failure Any one day after generation.
A kind of possible implementation of step S100 are as follows: user is in the electronic equipment for executing the method in the embodiment of the present application Or the date of maintenance is inputted in program module, at this point it is possible to get maintenance day.
The alternatively possible implementation of step S100 are as follows: user has preset pair between maintenance day and failure day It should be related to, so determining each maintenance according to the corresponding relationship of failure day and maintenance day when each power distribution network breaks down Day.It for example, is maintenance day in the second day of failure day, so when October 20 broke down within 2018, it can be true This fixed maintenance day is on October 21st, 2018.
Step S200: the load condition to the power distribution network in the maintenance day is predicted；
Optionally, referring to Fig. 2, step S200 may include: step in some optional embodiments of the application S201, step S202, step S203.
Step S201: it determines before the maintenance day, and M days similar days similar with the maintenance day, the M is big In or equal to 1 integer；
Optionally, in some optional embodiments of the application, when power distribution network maintenance day is festivals or holidays, step S201 In, can take M is 3, that is, needs the maintenance day similar 3 days similar days, specific step may include: the determining maintenance It is the first similar day of the maintenance day on the day before the vacation of festivals or holidays belonging to day；It determines in the previous year and belongs to the maintenance day It is the second similar day of the maintenance day on the day before the vacation of identical festivals or holidays；If the maintenance day is the first of vacation festivals or holidays It, it is determined that in the previous year to it is described overhaul belong to day vacation first day of identical festivals or holidays it is similar for the maintenance third of day Day；If the maintenance day is the last day of festivals or holidays or is greater than with first day festivals or holidays number of days differed the maintenance day The vacation number of days of the previous year identical festivals or holidays, it is determined that last day vacation of festivals or holidays identical as the maintenance day in the previous year For the third similar day of the maintenance day；If described overhaul first day or the last day that day is not vacation festivals or holidays, and institute The number of days P for stating the vacation first day difference of maintenance day and the festivals or holidays is less than festivals or holidays identical as the maintenance day in the previous year Vacation number of days, it is determined that that day for being P with first day vacation number of days different of maintenance identical festivals or holidays day in the previous year For the third similar day of the maintenance day, wherein the P is the integer greater than 1.
Optionally, in some optional embodiments of the application, when power distribution network maintenance day is not festivals or holidays, step S201 may include: acquisition before overhauling day, and the historical data with maintenance day same date type, described to obtain issue simultaneously According to the historical data of type, comprising: when overhauling day is weekend, the historical data at weekend should be taken, when overhauling day is working day, Workaday historical data should be taken；According to the date where the historical data 23 points 55 minutes, 23 points 50 minutes, 23 points 45 minutes whether There is load, in the date where obtaining historical data, have described in the date conduct of load for 45 minutes at 23 points at 55 minutes, 23 points at 50 minutes, 23 points Overhaul the similar day of day；If not getting similar day, characterization can not carry out load prediction；If only obtaining L days similar days, L is the integer for being less than M greater than 1, using the data of failure day as M-L days similar days, and by M-L days failure days in load prediction Data weight in the process is set as 0.
For example, if the maintenance day of power distribution network is weekend, M takes 10, then needs to obtain the 10 day weekend of maintenance a few days ago Historical data；If it is determined that only 7 days historical datas meet: 23 in the historical data at 10 weekends in maintenance a few days ago Point had load at 50 minutes, 23 points for 45 minutes at 55 minutes, 23 points, by this 7 days similar days as maintenance day；By the data of failure day, as Other 3 days historical datas, and data weight of other 3 days historical datas during carrying out load prediction is set as 0.
Step S202: obtaining the load at N number of time point in the M days similar days, and the N is the integer greater than 1；
During load prediction, need to obtain N number of time point of the M days similar days, daily N in M days similar days A time point is identical as the time point that power distribution network maintenance day needs to predict, the load at N number of time point of M days similar days of acquisition It will be as the foundation to the N number of time point load prediction of maintenance day.
A kind of possible implementation of step S200 are as follows: user has preset the corresponding relationship of maintenance day and M, N, institute It is N number of in corresponding M days similar days to obtain according to the corresponding relationship of maintenance day and M, N with when each power distribution network breaks down The load at time point.For example, when overhauling day is festivals or holidays, M, which can be taken as 3, N, can be taken as 24, at this time, it may be necessary to obtain Take the load at 24 time points of 3 days similar days of power distribution network maintenance day；When overhauling day is non-festivals or holidays, M can be taken as 10, N can be taken as 24, at this time, it may be necessary to obtain the load at 24 time points of 10 days similar days of power distribution network maintenance day.
During load prediction, need to obtain N number of time point of the M days similar days, daily N in M days similar days A time point is identical as the time point that power distribution network maintenance day needs to predict, the load at N number of time point of M days similar days of acquisition It will be as the foundation to the N number of time point load prediction of maintenance day.For example, if necessary to prediction power distribution network in maintenance day The load at 24 time points, then N can with value for 24, i.e., taken daily in M is similar the load of 24 time as pair The foundation that power distribution network maintenance 24 time point load of day are predicted.
Step S203: it is calculated according to the load at N number of time point of the M days similar days with linear extrapolation The load prediction results at N number of time point of the maintenance day.
It optionally, is festivals or holidays when power distribution network maintenance day referring to Fig. 2, in some optional embodiments of the application When, step S203 may include:
Calculate separately first similar day, second similar day, the peak load value of the third similar day and most Smaller load value；For example, power distribution network can be overhauled to the first similar day, second similar day, the third similar day of day Peak load value be denoted as Pimax, minimal negative charge values are denoted as Pimin。
Determine first similar day, second similar day, the reference peak load value in the third similar day, In, the peak load value with reference to peak load value and second similar day that peak load value is first similar day Sum, the difference with the peak load value of the third similar day.For example, can by power distribution network overhaul day the first similar day, Reference peak load value in second similar day, third similar day is denoted as Smax.；
Determine first similar day, second similar day, the reference minimal negative charge values in the third similar day, In, the minimal negative charge values with reference to minimal negative charge values and second similar day that minimal negative charge values are first similar day Sum, the difference with the minimal negative charge values of the third similar day.For example, can by power distribution network overhaul day the first similar day, Reference minimal negative charge values in second similar day, third similar day are denoted as Smin。
Change processing is marked to the load value at N number of time point in the third similar day, obtains the third phase Change load value like the mark at N number of time point of day.For example, the value that can take N is 24, and power distribution network maintenance day third is similar The load value of day is labeled as Pj, by following formula, to bearing for 24 time points in power distribution network maintenance day third similar day Charge values mark change processing, and the mark for obtaining 24 time points of power distribution network maintenance day third similar day changes load value Lj。
Change load value according to the reference peak load value and the reference minimal negative charge values and the mark, calculates The load prediction results at maintenance day at N number of time point.It for example, can be by following formula, according to the reference of power distribution network Peak load value SmaxMinimal negative charge values S is referred to describedminAnd the mark changes load value Lj, calculate power distribution network and overhaul day 24 time points load prediction results.
LSj=Lj*(Smax-Smin)+Smin
Optionally, in some optional embodiments of the application, when power distribution network maintenance day is not festivals or holidays, step S203 may include:
Need the load to N number of time point of the M days similar days to pre-process, obtain described M days it is similar The load pretreatment values at N number of time point of day；For example, can take M is 5, and taking N is 24, to the power distribution network of acquisition The load for overhauling 24 time points of 5 days similar days of day is pre-processed, and the negative of 24 time points of 5 days similar days is obtained Lotus amount pretreatment values Pij, the integer that i is 1~6, the integer that j is 1~24.
According to the load pretreatment values at N number of time point of the M days similar days, calculate in the M days similar days Daily maximal workload and minimum load amount；For example, 24 time of 5 days days similar day is overhauled according to power distribution network The load pretreatment values of point calculate maximal workload P daily in 5 days similar daysimaxWith minimum load amount Pimin。
Determine the load of M days similar days weight shared during predictive maintenance daily load amount；Citing comes It says, determines the load of 5 days similar days weight CO shared during predictive maintenance daily load amounti。
According to the load of M days similar days weight shared during predictive maintenance daily load amount, Yi Jisuo Maximal workload and minimum load amount daily in M days similar days are stated, the average maximum, minimal negative of the M days similar days is calculated Lotus amount；It for example, can be by following formula, according to the load of 5 days similar days in predictive maintenance daily load amount Shared weight CO in the processiAnd daily P in 5 days similar daysimaxWith minimum load amount Pimin, acquisition 5 days similar The average maximum load amount S of daymax, average minimum load amount Smin。
N number of time point load of the M days similar days is carried out to mark change processing, calculates the N point load of M days similar days The mark change value of amount.It for example, can be by following formula, to 24 time points of 5 days similar days of power distribution network maintenance day Load PijIt carries out marking change processing, calculates the mark change value L of 24 time point load of 5 days similar daysij。
According to the load of the M days similar days weight and the M days phases shared in predictive maintenance daily load amount Like the mark change value of N number of time point load of day, the load for calculating maintenance day at N number of time point is averaged per unit value.Citing comes It says, it can be negative in predictive maintenance day to 24 time point load of 5 days similar days of power distribution network maintenance day by following formula Shared weight CO in lotus amountiAnd the mark change value L of 24 time load of 5 days similar days of power distribution network maintenance dayij, The load for calculating maintenance 24 time points of day is averaged per unit value LLj。
It is averaged per unit value according to maintenance day at N number of time point corresponding load, calculates maintenance day N number of time The load of point is averaged the per unit value of per unit value；It for example, can be by following formula, when overhauling day 24 according to power distribution network Between put corresponding load and be averaged per unit value LLj, the load for calculating maintenance 24 time points of day is averaged per unit value Per unit value LLj。
According to the load at N number of time point of the M days similar days be averaged per unit value per unit value and the M days phases Like average maximum, the Smaller load amount S of daymin, calculate the negative prediction result at 24 time points of power distribution network maintenance day.For example, It can be averaged the mark of per unit value according to the load that power distribution network overhauls 24 time points of 5 days similar days of day by following formula ValueAnd the average maximum load amount S of power distribution network maintenance 5 days days similar daymax, average minimum load amount Smin, calculating matches The negative prediction result at 24 time points of grid maintenance day.
Optionally, referring to Fig. 2, after step S203, may include in some optional embodiments of the application Step S204, step S205, step S206.
Step S204: judging whether there is the M days similar days and overhauls the temperature information of day.
Step S205: when having the M days similar days and overhauling the temperature information of day, according to institute in the M days similar days The temperature information and the load at N number of time point at N number of time point are stated, N number of time point of the maintenance day is calculated Temperature difference corrected output；
It for example, can according to the following formula, according to adjacent temperature in the same time on the two in 5 days similar days of power distribution network THijWith load Pij, calculating temperature difference distribution power coefficient T Oij,
And daily mean temperature difference distribution power coefficient is calculated according to the temperature difference distribution power coefficient at 5 days 24 time points TOi。
Step S206: according to the temperature difference corrected output at N number of time point to the N number of time point for overhauling day Load prediction results are modified.
For example, according to 5 similar average diurnal difference of temperature distribution power coefficient T Oi, obtain 24 corrected output LXj, use LSjIn addition LXjFinal load prediction results as power distribution network.
Foregoing illustrate the load prediction for how carrying out maintenance day, above-mentioned example is only used for illustrating load prediction Some possible implementations, be not used to limit the application, can also be pre- using other loads so in practice Survey method carries out load prediction.
Determine power distribution network maintenance day load prediction results after, can according to load prediction results determination examine The load transfer scheme of day is repaired, i.e. method in the embodiment of the present application can execute step S300.
Step S300: being based on load prediction results, determines and carries out load transfer to the power distribution network in the maintenance day Load transfer scheme.
Optionally, referring to Fig. 2, step S300 may include: step in some optional embodiments of the application S301, step S302.
Step S301: being based on the load prediction results, judges in the maintenance day power distribution network with the presence or absence of only It is vertical to turn power supply source.
Optionally, it in some optional embodiments of the application, when carrying out load prediction in step s 200, can wrap It includes: in the maintenance day, determining N number of time point, N is the integer greater than 1；Respectively to the power distribution network when described N number of Between the load condition put predicted.For example, in power distribution network maintenance day, 24 time points are determined, respectively to distribution Load condition of the net 24 time points is predicted.
Corresponding, step S301 includes: to obtain N number of time point according to the load prediction results at N number of time point The power distribution network wait turn for load；Each residue for turning power supply source for obtaining the power distribution network at N number of time point can Carry capacity；At least one independent current source is judged whether there is, at least one described independent current source is all satisfied at N number of time point The residue can carry capacity greater than described wait turn for load；At least one described independent current source if it exists, characterizes the distribution Independently turn power supply source there are described in net.
For example, referring to Fig. 3, cb1, cb7, cb8 are incoming switch, cb5 and cb10 are interconnection switch, cb2, cb4, Cb6, cb9 are load.Assuming that when being overhauled to cb1 switch, downstream search to turn cb7 power supply can be brought by cb5 interconnection switch, Turned to bring cb8 power supply by cb10 interconnection switch.Wherein, cb7 is to turn power supply source 1, and cb8 is to turn power supply source 2.It is overhauled according to power distribution network The load prediction results at day 24 time points, obtain the power distribution network at 24 time points wait turn for load；Obtain 24 times The residue for turning power supply source 1 and turning power supply source 2 of the power distribution network of point can carry capacity；Judgement turn power supply source 1 and turn power supply source 2 whether 24 time points, which are all satisfied the residue, can carry capacity greater than described wait turn for load；If turning power supply source 1 and turning power supply source 2 to have One satisfaction, which is all satisfied the residue 24 time points, can carry capacity greater than described wait turn to characterize power distribution network for load and examining It repairs to have day and independently turns power supply source.
Step S302: independently turn power supply source if existing in the maintenance day power distribution network, determine and use independent current source Carrying out the scheme for turning to supply is the load transfer scheme.
When power distribution network maintenance day, which exists, independently turns power supply source, need independently turning to determine that an independence turns to supply in power supply source Power supply, and the independent current source will be used to carry out the scheme for turning to supply, the load transfer scheme as power distribution network maintenance day.Citing comes It says, referring to Fig. 4, turning power supply source 1 and turning power supply source 2 and all overhaul for power distribution network day independently to turn power supply source, but turns power supply source 2 Residual capacity summation is larger, carries out the scheme for turning to supply as the load transfer of power distribution network maintenance day so will use and turn power supply source 2 Scheme.
Optionally, referring to Fig. 2, after step S301, may include: in some optional embodiments of the application Step S303, step S304.
Step S303: if it is pre- to be based on the load there is no power supply source is independently turned in the maintenance day power distribution network It surveys as a result, judging that the power supply for whether having multiple power supplys to share load jointly in the maintenance day power distribution network is shared turns supplier Case；
Optionally, in some optional embodiments of the application, step S303 may include: according to N number of time The load prediction results of point, obtain the power distribution network at N number of time point wait turn for load；Obtain N number of time Each residue for turning power supply source in the power distribution network of point can carry capacity；According to first time point in N number of time point The power distribution network wait turn that capacity can be carried for load and each residue for turning power supply source, calculate first time point pair Each amortization ratio for turning power supply source answered；According to first time point it is corresponding it is described it is each turn power supply source share ratio Example, calculate it is described it is each turn power supply source turn for range according to it is described it is each turn power supply source turn for range, formulate the power distribution network Share turning solution；Judge that the described of the power distribution network shares turning solution, if all meet at N number of time point: in institute It states nothing in power distribution network and turns power supply source overload；All meet at N number of time point if it exists: nothing turns power supply source in the power distribution network Overload shares turning solution, is characterized in the maintenance day power distribution network that there are the power supplys that multiple power supplys share load jointly Share turning solution.
For example, referring to Fig. 3, overhauling the load prediction results at 24 time points of day according to power distribution network, 24 are obtained The power distribution network at time point wait turn for load；Each residue for turning power supply source obtained in the power distribution network at 24 time points can Carry capacity；According in 24 time points the power distribution network at first time point wait turn for load and described each turn power supply source Residue can carry capacity, calculate first time point corresponding each amortization ratio for turning power supply source, such as: in Fig. 3 Shown in distribution network, cb1 maintenance turns power supply source 1 (cb7) and turns remaining for power supply source 2 (cb8) wait turn for load to be 80 Covolume amount is 60 and 50 respectively, then power supply 1 should share number are as follows: 80 × 60/110=43.6kVA, power supply 2 should share number are as follows: 80 × 50/110=36.4kVA；According to first time point of power distribution network corresponding amortization ratio for turning power supply source 1 and turning power supply source 2, meter Calculate power distribution network the power supply source 1 and turn power supply source 2 turn for range, and according to turn power supply source 1 and turn power supply source 2 turn for model It encloses, formulates the turning solution of sharing of power distribution network, such as: it is cb8 apart from nearest power supply when cb1 is overhauled as described in Figure 3, is dividing Cb8 can turn to decide whether to continue with the load before cb1 and cb3 to turn with the load before cb3 and cb4 in the range of booth When, it first determining whether after its turn of band whether to be more than residual capacity, cb3 switch separating brake does not continue to turn band further downstream if being more than, if No more than then calculate cb1 switch to cb4 switch room load total amount subtract cb8 power supply should share several differences as allow do not turn supply Load, permission does not turn to switch divided by cb3 to cb4 switch room load total amount for load, if if ratio connects less than 0.4 Band is turned by downstream by cb3 switch separating brake, otherwise, cb3 switch closes a floodgate, and turns with the load between cb3 and cb4；Judge institute's power distribution network The first moment share turning solution, if all meet 24 time points: without turning power supply source overload in power distribution network；If full Foot, there are the power supplys that multiple power supplys share load jointly to share turning solution in maintenance day for characterization power distribution network, such as: according to first Moment shares turning solution, and maintenance 24 points of load prediction results of day, carries out to 24 time points of power distribution network maintenance day Power distribution network safety in operation verification, if turning all power supplys after supplying characterizes power distribution network in maintenance day in 24 time point equal nonoverloads The power supply for sharing load jointly there are two power supplys shares turning solution.
Step S304: if there are the power supplys to share turning solution for power distribution network described in the maintenance day, electricity is shared in determination Source turning solution is the load transfer scheme.When there are power supplys to share turning solution when described N number of in power distribution network maintenance day Between put all meet: in the power distribution network without turn power supply source overload, then using the power supply share turning solution as power distribution network maintenance The load transfer scheme of day.For example, when power distribution network maintenance day in there are power supply share turning solution 24 time points all Meet: without power supply source overload is turned in power distribution network, then the power supply being shared into turning solution as the load transfer of power distribution network maintenance day Scheme.
Second embodiment
Referring to Fig. 5, the embodiment of the present application provides a kind of load transfer device 10 of power distribution network, the load of power distribution network turns It include: to obtain module 11, prediction module 12 and determining module 13 for device 10.
Module 11 is obtained, for obtaining the maintenance day for needing to overhaul power distribution network；
Prediction module 12 is predicted for the load condition to the power distribution network in the maintenance day；
Determining module 13 determines for being based on load prediction results and carries out load to the power distribution network in the maintenance day Turn the load transfer scheme supplied.
Optionally, determining module 13 is used for: being determined before the maintenance day, and the similar M days phases with the maintenance day Like day, the M is the integer more than or equal to 1；
Optionally, it obtains module 11 to be used for: obtaining the load at N number of time point in the M days similar days, the N is big In 1 integer；
Optionally, load transfer device 10 further includes computing module, for according to the M days similar days it is described N number of when Between the load put with linear extrapolation calculate the load prediction results at N number of time point of the maintenance day.
Optionally, determining module 13 is also used to: when the maintenance day is festivals or holidays, determining that section belonging to the maintenance day is false It is the first similar day of the maintenance day on the day before the vacation of day；It determines in the previous year and belongs to identical festivals or holidays with the maintenance day Vacation on the day before be it is described maintenance day the second similar day；If the maintenance day is first day of vacation festivals or holidays, it is determined that Belong to vacation first day of identical festivals or holidays day with the maintenance in the previous year for the third similar day of the maintenance day；If described It is identical greater than the previous year for the last day of festivals or holidays or the number of days of the difference of maintenance day and festivals or holidays first day to overhaul day The vacation number of days of festivals or holidays, it is determined that last day vacation of festivals or holidays identical as the maintenance day is the maintenance in the previous year The third similar day of day；If it is described maintenance day be not vacation festivals or holidays first day or last day, and the maintenance day and The number of days P of the vacation first day difference of the festivals or holidays is less than the vacation day of festivals or holidays identical as the maintenance day in the previous year Number, it is determined that day that first day vacation number of days different of festivals or holidays identical as the maintenance day is P in the previous year is the inspection Repair the third similar day of day, wherein the P is the integer greater than 1.
Optionally, computing module is also used to: calculating separately first similar day, second similar day, the third The peak load value and minimal negative charge values of similar day；Determine that first similar day, second similar day, the third are similar Reference peak load value in day, wherein the peak load value and institute with reference to peak load value for first similar day The sum for stating the peak load value of the second similar day, the difference with the peak load value of the third similar day；Determine first phase Like the reference minimal negative charge values in day, second similar day, the third similar day, wherein described to refer to minimal negative charge values For the minimal negative charge values and second similar day of first similar day minimal negative charge values and, with the third similar day Minimal negative charge values difference；Change processing is marked to the load value at N number of time point in the third similar day, obtains institute The mark for stating N number of time point of third similar day changes load value；According to described with reference to peak load value and described with reference to minimal negative Charge values and the mark change load value, calculate the load prediction results at maintenance day at N number of time point.
Optionally, computing module is also used to: according to the temperature information at N number of time point described in the M days similar days, and The load at N number of time point calculates the temperature difference corrected output at N number of time point of the maintenance day；According to described N number of The temperature difference corrected output at time point is modified the load prediction results at N number of time point of the maintenance day.
Optionally, load transfer device 10 further includes judgment module, for being based on the load prediction results, is judged in institute Stating, which whether there is in the maintenance day power distribution network, independently turns power supply source；
Optionally, determining module 13 is also used to: independently turning power supply source if existing in the maintenance day power distribution network, really Surely carrying out the scheme for turning to supply using independent current source is the load transfer scheme.
Optionally, computing module is also used to: in the maintenance day, determining N number of time point, N is the integer greater than 1； The load condition to the power distribution network at N number of time point is predicted respectively；
It is corresponding, it obtains module 11 and is also used to: according to the load prediction results at N number of time point, when obtaining described N number of Between put the power distribution network wait turn for load；It obtains each of the power distribution network at N number of time point and turns the surplus of power supply source It is remaining to carry capacity.
Corresponding, judgment module is also used to: judging whether there is at least one independent current source, at least one described independent electrical Source, which is all satisfied the residue at N number of time point, can carry capacity greater than described wait turn for load.
Corresponding, determining module 13 is also used to: at least one described independent current source if it exists is characterized and is deposited in the power distribution network Independently turn power supply source described.
Optionally, judgment module is also used to: if there is no independently turn power supply source, base in the maintenance day power distribution network In the load prediction results, the electricity for whether there are multiple power supplys to share load jointly in the maintenance day power distribution network is judged Turning solution is shared in source；
Optionally, determining module 13 is also used to: turning to supply if power distribution network described in the maintenance day is shared there are the power supply Scheme determines that sharing power supply turning solution is the load transfer scheme.
Optionally, computing module is also used to: in the maintenance day, determining N number of time point, N is the integer greater than 1.
Optionally, prediction module 12 is also used to: the load condition to the power distribution network at N number of time point carries out respectively Prediction；
It is corresponding, it obtains module 11 and is also used to: according to the load prediction results at N number of time point, when obtaining described N number of Between put the power distribution network wait turn for load；Each power supply source that turns for obtaining in the power distribution network at N number of time point Residue can carry capacity.
Corresponding, computing module is also used to: according in N number of time point the power distribution network at first time point to Turn that capacity can be carried for load and each residue for turning power supply source, calculates first time point corresponding each turn of confession The amortization ratio of power supply；According to first time point corresponding each amortization ratio for turning power supply source, calculate described each Turn turning for range for power supply source；According to it is described it is each turn power supply source turn for range, that formulates the power distribution network shares turning solution；
Corresponding, judgment module is also used to: judging that the described of the power distribution network shares turning solution, if described N number of Time point all meets: nothing turns power supply source overload in the power distribution network；
Corresponding, determining module 13 is also used to: all being met at N number of time point if it exists: the nothing in the power distribution network Turn power supply source overload share turning solution, be characterized in the maintenance day power distribution network there are multiple power supplys share jointly it is negative The power supply of lotus shares turning solution.
3rd embodiment
The embodiment of the present application provides a kind of terminal device, comprising: memory, processor and is stored in the memory In and the computer program that can run on the processor, the processor above-mentioned the is realized when executing the computer program The load transfer method of power distribution network in one embodiment.
Fourth embodiment
The embodiment of the present application provides a kind of storage medium, and instruction is stored on the storage medium, when described instruction exists When being run on computer, so that the computer executes the load transfer of the power distribution network in above-mentioned first embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can lead to Hardware realization is crossed, the mode of necessary general hardware platform can also be added to realize by software, based on this understanding, this hair Bright technical solution can be embodied in the form of software products, which can store in a non-volatile memories In medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including some instructions are used so that computer equipment (can be with It is personal computer, server or the network equipment etc.) method that executes each implement scene of the present invention.
More than, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, and it is any to be familiar with Those skilled in the art within the technical scope of the present application, can easily think of the change or the replacement, and should all cover Within the protection scope of the application.Therefore, the protection scope of the application should be subject to the protection scope in claims.

Claims (12)

1. a kind of load transfer method of power distribution network, which is characterized in that the described method includes:
Obtain the maintenance day for needing to overhaul power distribution network；
Load condition to the power distribution network in the maintenance day is predicted；
Based on load prediction results, determines and carry out the load transfer scheme of load transfer to the power distribution network in the maintenance day.
2. the method according to claim 1, wherein it is described to the power distribution network it is described maintenance day load feelings Condition is predicted, comprising:
It determines before the maintenance day, and M days similar days similar with the maintenance day, the M is whole more than or equal to 1 Number；
The load at N number of time point in the M days similar days is obtained, the N is the integer greater than 1；
The maintenance day is calculated with linear extrapolation according to the load at N number of time point of the M days similar days The load prediction results at N number of time point.
3. according to the method described in claim 2, it is characterized in that, the determination is in institute when the maintenance day is festivals or holidays Before stating maintenance day, and M days similar days similar with the maintenance day, comprising:
It is the first similar day of the maintenance day on the day before the vacation for determining festivals or holidays belonging to the maintenance day；
Determine that the previous day vacation for belonging to identical festivals or holidays in the previous year day to the maintenance is the maintenance day second is similar Day；
If the maintenance day is first day of vacation festivals or holidays, it is determined that belong to identical festivals or holidays with the maintenance day in the previous year Vacation first day for it is described maintenance day third similar day；
If the maintenance day is the last day of festivals or holidays or is greater than with first day festivals or holidays number of days differed the maintenance day The vacation number of days of the previous year identical festivals or holidays, it is determined that last day vacation of festivals or holidays identical as the maintenance day in the previous year For the third similar day of the maintenance day；
If described overhaul first day or the last day that day is not vacation festivals or holidays, and the maintenance day and the festivals or holidays The number of days P of vacation first day difference is less than the vacation number of days of festivals or holidays identical as the maintenance day in the previous year, it is determined that previous That day that first day vacation number of days different of maintenance day identical festivals or holidays is P described in Nian Zhongyu is that the third of the maintenance day is similar Day, wherein the P is the integer greater than 1.
4. according to the method described in claim 3, the load at N number of time point according to the M days similar days, fortune With linear extrapolation, the load prediction results at N number of time point of the maintenance day are calculated, comprising:
Calculate separately the peak load value and minimal negative of first similar day, second similar day, the third similar day Charge values；
Determine first similar day, second similar day, the reference peak load value in the third similar day, wherein The peak load value with reference to peak load value and second similar day that peak load value is first similar day With difference with the peak load value of the third similar day；
Determine first similar day, second similar day, the reference minimal negative charge values in the third similar day, wherein The minimal negative charge values with reference to minimal negative charge values and second similar day that minimal negative charge values are first similar day With difference with the minimal negative charge values of the third similar day；
Change processing is marked to the load value at N number of time point in the third similar day, obtains the third similar day N number of time point mark change load value；
According to described with reference to peak load value and described with reference to minimal negative charge values and mark change load value, described in calculating Overhaul the load prediction results at day at N number of time point.
5. according to the method described in claim 2, the load at N number of time point according to the M days similar days, fortune With linear extrapolation, after the load prediction results for calculating N number of time point of the maintenance day, further includes:
According to the temperature information at N number of time point described in the M days similar days and the load at N number of time point, calculate The temperature difference corrected output at N number of time point of the maintenance day；
According to the temperature difference corrected output at N number of time point to the load prediction results at N number of time point of the maintenance day It is modified, obtains the load prediction results of the maintenance day.
6. determining the method according to claim 1, wherein described be based on load prediction results in the maintenance Day carries out the load transfer scheme of load transfer to the power distribution network, comprising:
Based on the load prediction results, judging, which whether there is in the maintenance day power distribution network, independently turns power supply source；
If existing in the maintenance day power distribution network and independently turning power supply source, determines and carry out the scheme for turning to supply using independent current source For the load transfer scheme.
7. according to the method described in claim 6, it is characterized in that, to the power distribution network it is described maintenance day load condition into Row prediction, comprising:
In the maintenance day, N number of time point is determined, N is the integer greater than 1；
The load condition to the power distribution network at N number of time point is predicted respectively；
It is corresponding, it is described to be based on the load prediction results, judge in the maintenance day power distribution network with the presence or absence of independent Turn power supply source, comprising:
According to the load prediction results at N number of time point, obtain the power distribution network at N number of time point wait turn for load Amount；
Each residue for turning power supply source for obtaining the power distribution network at N number of time point can carry capacity；
At least one independent current source is judged whether there is, at least one described independent current source is all satisfied institute at N number of time point Capacity can be carried greater than described wait turn for load by stating residue；
At least one described independent current source if it exists, characterizes in the power distribution network and independently turns power supply source there are described.
8. according to the method described in claim 6, it is characterized in that, judging whether deposit in the maintenance day power distribution network It is described to be based on load prediction results after independently turning power supply source, it determines and load is carried out to the power distribution network in the maintenance day Turn the load transfer scheme supplied, further includes:
If being based on the load prediction results there is no power supply source is independently turned in the maintenance day power distribution network, judging The power supply for whether having multiple power supplys to share load jointly in the maintenance day power distribution network shares turning solution；
If there are the power supplys to share turning solution for power distribution network described in the maintenance day, determination shares power supply turning solution for institute State load transfer scheme.
9. according to the method described in claim 8, it is characterized in that, to the power distribution network it is described maintenance day load condition into Row prediction, comprising:
In the maintenance day, N number of time point is determined, N is the integer greater than 1；
The load condition to the power distribution network at N number of time point is predicted respectively；
It is corresponding, it is described to be based on the load prediction results, judge whether there are multiple electricity in the maintenance day power distribution network The power supply that load is shared in source jointly shares turning solution, comprising:
According to the load prediction results at N number of time point, obtain the power distribution network at N number of time point wait turn for load Amount；
Each residue for turning power supply source obtained in the power distribution network at N number of time point can carry capacity；
According in N number of time point the power distribution network at first time point wait turn for load and described each turn power supply source Residue can carry capacity, calculate first time point corresponding each amortization ratio for turning power supply source；
According to first time point corresponding each amortization ratio for turning power supply source, each turn for turning power supply source is calculated For range；
According to it is described it is each turn power supply source turn for range, that formulates the power distribution network shares turning solution；Judge the power distribution network Described share turning solution, if all meet at N number of time point: without turning power supply source overload in the power distribution network；
All meet at N number of time point if it exists: in the power distribution network without turn power supply source overload share turning solution, table It levies the power supply for sharing load jointly there are multiple power supplys in the maintenance day power distribution network and shares turning solution.
10. a kind of load transfer device of power distribution network, which is characterized in that described device includes:
Module is obtained, for obtaining the maintenance day for needing to overhaul power distribution network；
Prediction module is predicted for the load condition to the power distribution network in the maintenance day；
Determining module determines for being based on load prediction results and carries out load transfer to the power distribution network in the maintenance day Load transfer scheme.
11. a kind of terminal device characterized by comprising memory, processor and storage are in the memory and can be The computer program run on the processor, the processor realize such as claim 1 to 9 when executing the computer program The load transfer method of described in any item power distribution networks.
12. a kind of storage medium, which is characterized in that instruction is stored on the storage medium, when described instruction on computers When operation, so that the computer executes the load transfer method of power distribution network as described in any one of claim 1 to 9.
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