CN106655161A - Loss reducing method for split joint arrangement in consideration of the distribution parameter change and installation position influence - Google Patents
Loss reducing method for split joint arrangement in consideration of the distribution parameter change and installation position influence Download PDFInfo
- Publication number
- CN106655161A CN106655161A CN201610976383.5A CN201610976383A CN106655161A CN 106655161 A CN106655161 A CN 106655161A CN 201610976383 A CN201610976383 A CN 201610976383A CN 106655161 A CN106655161 A CN 106655161A
- Authority
- CN
- China
- Prior art keywords
- allocation plan
- loss
- distribution line
- transformer
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The embodiments of the invention disclose a loss reducing method for split joint arrangement in consideration of the distribution parameter change and installation position influence. The method comprises: obtaining the initial parameter information of the transformers and conductive wires in power distribution lines; according to the initial parameter information, combining the split gears of the split joints of the transformers so as to obtain a plurality of split joint arranging schemes; conducting change-ratio analysis on the various arranging schemes; obtaining the parameter change information of the power distribution lines corresponding to the arranging schemes; according to the parameter change information and in combination a preset loss calculating model, obtaining the total loss of all transformers in the power distribution lines corresponding to the arranging schemes; according to the total loss, choosing from the various arranging schemes the best arranging scheme. The embodiments of the invention consider the influence of the change ratio on the parameters of the power distribution lines and create a power distribution line parameter change calculating model so as to trigger on the basis of the self-loss characteristics and principles of the transformers themselves and to provide loss reducing schemes for the power distribution lines. Capable of accurately calculating the loss, the loss reducing scheme is a targeted and systematic one.
Description
Technical field
The present embodiments relate to electric power network technique field, and in particular to a kind of power distribution network drop damage side configured based on tap
Method and device.
Background technology
In the grid loss of component voltage grade, the loss of 10kV and following low and medium voltage distribution network about accounts for whole network
3/4.In addition to more new line with exploitation energy-saving equipment, reaching economical operation by reasonable disposition existing equipment is also
Common drop damage method.Transformer mostly carries tap, and adjusting tap can not only change working voltage, electric current, Er Qiebian
The magnetic flux and winding length of depressor can also produce change, and the actual parameter for causing distribution transformer is produced change by this, so as to change
Become transformer loss and line loss.Distribution line typically carries multiple stage transformer, and supply voltage has allowed necessarily to change model
Enclose, if each load tap changer in energy reasonable disposition distribution line, can effectively reduce matching somebody with somebody while quality of voltage is ensured
(herein " losses of distribution network " refers in particular to the synthesis of medium-voltage line and its distribution transformer group that powered and low tension circuit to network loss consumption
Loss, as follows).
During the embodiment of the present invention is realized, inventor's discovery is existing to be reduced by configuring load tap changer
The research of losses of distribution network, launches from circuit equivalent transformations and parameter conversion angle more, and these drop damage scheme loss calculation essences
Degree is low, and the drop damage effect of scheme is limited.
The content of the invention
One purpose of the embodiment of the present invention is to solve many angles converted from circuit equivalent transformations and parameter of prior art
Drop damage is carried out to power distribution network, its loss calculation precision is low, drop damages the limited problem of effect.
The embodiment of the present invention proposes a kind of power distribution network drop damage method configured based on tap, including：
Obtain the initial parameter information of each transformer and wire in distribution line；
The tapping gear of the tap of each transformer is combined according to the initial parameter information, is obtained multiple
Tap allocation plan；
Carry out no-load voltage ratio analysis to each allocation plan respectively, the parameter for obtaining the corresponding distribution line of each allocation plan becomes
Change information；
According to the Parameters variation information, with reference to pre-established loss calculation model, each allocation plan is obtained corresponding described
The overall losses of all transformers in distribution line；
Allocation optimum scheme is selected from each allocation plan according to the overall losses.
Optionally, own in the corresponding distribution line according to each allocation plan of the Parameters variation acquisition of information
The step of overall losses of transformer, specifically includes：
Transformer loss and line according to the corresponding distribution line of each allocation plan of the Parameters variation acquisition of information
Path loss consumes；
The initial power of the corresponding distribution line of each allocation plan is obtained according to the transformer loss and line loss
Rate；
According to the preliminary power, with reference to pre-established loss calculation model, the distribution wire corresponding to each allocation plan
The transformer loss on road and line loss are iterated calculating, obtain all changes in the corresponding distribution line of each allocation plan
The overall losses of depressor.
Optionally, the distribution line corresponding to each allocation plan transformer loss and line loss be iterated
Before the step of calculating, methods described also includes：
Obtained according to the transformer loss and line loss and chosen in advance in the corresponding distribution line of each allocation plan
The node voltage of point；
Correspondingly, described according to the preliminary power, the transformer of the distribution line corresponding to each allocation plan is damaged
The step of consumption and line loss are iterated calculating specifically includes：
According to the preliminary power and the node voltage of the pre- selected point, with reference to pre-established loss calculation model, to each
The transformer loss of the corresponding distribution line of allocation plan and line loss are iterated calculating.
Optionally, it is described concrete the step of allocation optimum scheme is selected from each allocation plan according to the overall losses
Including：
The overall losses of all transformers in the corresponding distribution line of each allocation plan are contrasted, overall losses is obtained most
Little allocation plan.
Optionally, before the step of allocation optimum scheme is selected from each allocation plan according to the overall losses,
Methods described also includes：
The fluctuation threshold that gets parms information, carries the fluctuation threshold of target component in the parameter fluctuation threshold information；
Correspondingly, it is described concrete the step of allocation optimum scheme is selected from each allocation plan according to the overall losses
Including：
The overall losses of all transformers in the corresponding distribution line of each allocation plan are contrasted, overall losses is selected most
Little allocation plan, and whether the undulating value of target component in the allocation plan of the selection is judged less than the fluctuation threshold,
If so, the allocation plan for then confirming the selection is allocation optimum scheme.
Optionally, according to the Parameters variation information, with reference to pre-established loss calculation model, each allocation plan pair is obtained
In the distribution line answered the step of the overall losses of all transformers before, methods described also includes：
Obtain multiple tap allocation plan samples；
No-load voltage ratio analysis is carried out to each tap allocation plan sample, the corresponding parameter of each tap allocation plan sample is obtained
Change information；
Loss calculation model is set up according to the corresponding Parameters variation information of each tap allocation plan sample.
The invention allows for a kind of power distribution network drop damage device configured based on tap, including：
First acquisition module, for obtaining distribution line in each transformer and wire initial parameter information；
Composite module, for being carried out to the tapping gear of the tap of each transformer according to the initial parameter information
Combination, obtains multiple tap allocation plans；
Analysis module, for carrying out to each allocation plan no-load voltage ratio analysis respectively, obtains that each allocation plan is corresponding described to match somebody with somebody
The Parameters variation information of electric line；
Processing module, for according to the Parameters variation information, with reference to pre-established loss calculation model, obtains each configuration side
The overall losses of all transformers in the corresponding distribution line of case；
Selecting module, for allocation optimum scheme to be selected from each allocation plan according to the overall losses.
Optionally, the processing module, specifically for corresponding according to each allocation plan of the Parameters variation acquisition of information
The transformer loss of the distribution line and line loss；Each allocation plan is obtained according to the transformer loss and line loss
The initial power of the corresponding distribution line；According to the preliminary power, with reference to pre-established loss calculation model, to each configuration
The transformer loss of the corresponding distribution line of scheme and line loss are iterated calculating, obtain each allocation plan corresponding
The overall losses of all transformers in the distribution line.
Optionally, the processing module, obtains each allocation plan corresponding according to the transformer loss and line loss
The node voltage of pre- selected point in the distribution line；According to the preliminary power and the node voltage of the pre- selected point, knot
Pre-established loss calculation model is closed, the transformer loss of the distribution line corresponding to each allocation plan and line loss are carried out
Iterative calculation.
Optionally,
Described device also includes：MBM；
The MBM, for obtaining multiple tap allocation plan samples；Each tap allocation plan sample is entered
Row no-load voltage ratio is analyzed, and obtains the corresponding Parameters variation information of each tap allocation plan sample；According to each tap allocation plan sample
This corresponding Parameters variation information sets up loss calculation model.
Optionally, described device also includes：Second acquisition module；
Second acquisition module, for the fluctuation threshold information that gets parms, carries in the parameter fluctuation threshold information
There is the fluctuation threshold of target component；
Correspondingly, the selecting module, specifically for all changes in the corresponding distribution line of each allocation plan of contrast
The overall losses of depressor, the allocation plan for selecting overall losses minimum, and judge target component in the allocation plan of the selection
Undulating value whether be less than the fluctuation threshold, the allocation plan for if so, then confirming the selection is allocation optimum scheme.
As shown from the above technical solution, the embodiment of the present invention propose based on tap configure power distribution network drop damage method and
Device becomes the impact for comparing parameter in distribution line by considering, sets up distribution line Parameters variation computing module, is become with being based on
Depressor own loss characteristic and principle are triggered, and are distribution line configuration drop damage scheme, with loss calculation is accurate, drop damage scheme has
Specific aim and systematic advantage.
Description of the drawings
The features and advantages of the present invention can be more clearly understood from by reference to accompanying drawing, accompanying drawing is schematic and should not manage
Solution is to carry out any restriction to the present invention, in the accompanying drawings：
Fig. 1 shows that the flow process of the power distribution network drop damage method configured based on tap that one embodiment of the invention is provided is illustrated
Figure；
Fig. 2 shows that the flow process of the power distribution network drop damage method configured based on tap that another embodiment of the present invention is provided is shown
It is intended to；
Fig. 3 shows that the structural representation of damage device drops in the power distribution network configured based on tap that one embodiment of the invention is provided
Figure.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 shows that the flow process of the power distribution network drop damage method configured based on tap that one embodiment of the invention is provided is illustrated
Figure, referring to Fig. 1, the method includes：
110th, the initial parameter information of each transformer and wire in distribution line is obtained；
It should be noted that when power distribution network is set up, the information of each transformer selected by power distribution network can be recorded and deposit
Storage, wherein, initial parameter information includes：The model of number transformer and each transformer, capacity, combinations of voltages, open circuit loss
Etc..
Obtaining the method for initial parameter signal includes：Extract from memory, or detected using extra equipment.
120th, the tapping gear of the tap of each transformer is combined according to the initial parameter information, is obtained
Multiple tap allocation plans；
It should be noted that the difference based on model, the quantity of the tapping gear of transformer is also different.Illustrated herein
Explanation：There are 5 transformers in certain power distribution network, each transformer there are 3 tapping gears；Therefore, the combination to transformer tap gear
There is 3*3*3*3*3；Correspondingly, there is 3*3*3*3*3 tap allocation plan；
Wherein, tap allocation plan includes：The gear of the tap of each transformer.
130th, no-load voltage ratio analysis is carried out to each allocation plan respectively, obtain the ginseng of the corresponding distribution line of each allocation plan
Number change information；
It should be noted that no-load voltage ratio refers to include：Transformer voltage ratio, voltage transformer no-load voltage ratio summation current transformer become
Than being the voltage ratio or current transformer first winding and two between transformer or voltage transformer first winding and Secondary Winding
Electric current ratio between secondary winding.One concept of calculation error when no-load voltage ratio is design of transformer.When general no-load voltage ratio is more than 3, by mistake
Difference need to be less than percent 0.5；When no-load voltage ratio is less than or equal to 3, error need to be less than percent 1.
It is understandable to be, no-load voltage ratio analysis i.e. analysis is carried out to allocation plan and becomes the impact for comparing each parameter of distribution line.
Wherein, the parameter of distribution line includes：Conductance, resistance, voltage etc..
140th, according to the Parameters variation information, with reference to pre-established loss calculation model, each allocation plan is obtained corresponding
The overall losses of all transformers in the distribution line；
150th, allocation optimum scheme is selected from each allocation plan according to the overall losses.
It should be noted that step 150 can be specially：Contrast all changes in the corresponding distribution line of each allocation plan
The overall losses of depressor, obtain the minimum allocation plan of overall losses.
The present embodiment becomes the impact for comparing parameter in distribution line by considering, sets up distribution line Parameters variation and calculates mould
Block, is distribution line configuration drop damage scheme, with loss calculation essence to be triggered based on transformer own loss characteristic and principle
Really, the targeted and systematic advantage of damage scheme drops.
The step 140 in the present embodiment is described in detail below：
The impact of the parameter for comparing distribution line is become by analysis, after the change information that gets parms, is become according to the parameter
Change transformer loss and the line loss of the corresponding distribution line of each allocation plan of acquisition of information；
The initial power of the corresponding distribution line of each allocation plan is obtained according to the transformer loss and line loss
Rate；
According to the preliminary power, with reference to pre-established loss calculation model, the distribution wire corresponding to each allocation plan
The transformer loss on road and line loss are iterated calculating, obtain all changes in the corresponding distribution line of each allocation plan
The overall losses of depressor.
In a possible embodiments, above-mentioned steps 140 can be realized in the following way：
Obtained according to the transformer loss and line loss and chosen in advance in the corresponding distribution line of each allocation plan
The node voltage of point；
Transformer loss and line according to the corresponding distribution line of each allocation plan of the Parameters variation acquisition of information
Path loss consumes；
The initial power of the corresponding distribution line of each allocation plan is obtained according to the transformer loss and line loss
Rate；
According to the preliminary power and the node voltage of the pre- selected point, with reference to pre-established loss calculation model, to each
The transformer loss of the corresponding distribution line of allocation plan and line loss are iterated calculating, obtain each allocation plan pair
The overall losses of all transformers in the distribution line answered.
Fig. 2 shows that the flow process of the power distribution network drop damage method configured based on tap that another embodiment of the present invention is provided is shown
It is intended to, referring to Fig. 2, the method includes：
210th, the initial parameter information and parameter fluctuation threshold information of each transformer in distribution line, the parameter ripple are obtained
The fluctuation threshold of target component is carried in dynamic threshold information；
It should be noted that for power distribution network, ginseng of angle of its safety control system in safety to power distribution network
Several fluctuations are defined, may the corresponding controling mechanism of triggering if fluctuation is excessive.
220th, the tapping gear of the tap of each transformer is combined according to the initial parameter information, is obtained
Multiple tap allocation plans；
230th, no-load voltage ratio analysis is carried out to each allocation plan respectively, obtain the ginseng of the corresponding distribution line of each allocation plan
Number change information；
240th, according to the Parameters variation information, with reference to pre-established loss calculation model, each allocation plan is obtained corresponding
The overall losses of all transformers in the distribution line；
250th, the overall losses of all transformers in the corresponding distribution line of each allocation plan are contrasted, overall damage is selected
The minimum allocation plan of consumption；
260th, judge the undulating value of target component in the allocation plan of the selection whether less than the fluctuation threshold；
260th, the allocation plan for if so, then confirming the selection is allocation optimum scheme；
If it is not, then contrasting to remaining allocation plan again, the allocation plan for selecting overall losses minimum, and sentence again
Whether the disconnected undulating value for selecting target component in allocation plan is less than the fluctuation threshold.
It should be noted that step 120- respectively in embodiment corresponding with Fig. 1 of step 220-250 in the present embodiment
150 correspond, and it is also identical that it implements process, therefore, the relevant statements of the corresponding embodiments of Fig. 1 are specifically can refer to, this
Place is no longer repeated.
The design principle of the present invention is exemplarily illustrated below：
By taking a 10kV distribution line with 5 transformers as an example, to the circuit using distribution transforming Parameters variation and access
The tap configuration drop damage method that position affects carries out tap drop and damages configuration, and for convenience of citing transformation in the distribution line is assumed
Device is identical and equidistantly distributes.
S1, the technical parameter for obtaining each element in the distribution line first, are shown in Table 1,2.
The 10/0.4kV transformer technology parameters of table 1
Wherein, Uk% represents the percentage of the short-circuit voltage of the transformer, PkThe short circuit loss of the transformer is represented,
P0Represent the open circuit loss of the transformer, I0% represents the percentage of the no-load current of the transformer.
The 10/0.4kV transformer technology parameters of table 2
| Circuit | Length (km) | Resistance (Ω/km) | Reactance (Ω/km) |
| 10kV circuits | 3.13 | 0.21 | 0.373 |
| 0.4kV circuits | 0.284 | 0.0433 | 0.0558 |
The distribution line is obtained in different periods (such as T1, T2 period, by taking the T1 periods as an example), each transformer it is negative
Load rate, is shown in Table 3.
The distribution line of table 3 each transformer load rate (%)
S2, by whole load tap changer combination in distribution line, obtain all possible tap and combine allocation plan,
3 are had in the example5Middle allocation plan；
S3, analysis no-load voltage ratio change the impact to distribution transforming circuit parameter, draw the distribution transforming circuit parameter variations that no-load voltage ratio affects
Computation model；
Above-mentioned model is the transformer conductance model that the no-load voltage ratio referred in step S3 affects, wherein, GTxFor the reality of transformer
Border conductance, K represents the ratio of the position of load tap changer in circuit, i.e., actual no-load voltage ratio and main tap location no-load voltage ratio, GTTo become
Depressor is in specified conductance.
Above-mentioned model is the transformer resistance model that the no-load voltage ratio referred in step S3 affects, wherein, RTxFor the reality of transformer
Border resistance, K represents the ratio of the position of load tap changer in circuit, i.e., actual no-load voltage ratio and main tap location no-load voltage ratio, RTTo become
The rated resistance of depressor.
U2=U2N/K
When above-mentioned model changes for no-load voltage ratio in distribution transforming circuit step down side voltage computation model, wherein, U2To become
Depressor low-pressure side virtual voltage, K represents the position of load tap changer in circuit, i.e., actual no-load voltage ratio and main tap location no-load voltage ratio
Ratio, U2NFor step down side rated voltage.
S4, the distribution transforming circuit parameter model affected according to the no-load voltage ratio drawn in step S3, obtain the transformer of no-load voltage ratio impact
Loss model, the transformer loss model that no-load voltage ratio is affected calculates the distribution wire in combination with traditional tidal current computing method
Road is located at the line loss of the transformer loss and transformer high and low pressure side produced during each tap allocation plan；
Above formula is the transformer loss model that the no-load voltage ratio described in S4 affects, wherein, Δ PxiRepresent i-th transformation in circuit
The active loss power of device, KiThe position of i-th load tap changer in circuit is represented, i.e., actual no-load voltage ratio becomes with main tap location
The ratio of ratio, P0iRepresent the open circuit loss in i-th transformer nameplate parameter, βiI-th transformer load rate in circuit is represented,
PkiRepresent the short circuit loss in i-th transformer nameplate parameter；UNiI-th transformer primary side voltage in circuit is represented, is also
The endpoint node voltage of i-th section of high-tension line；UNRepresent the rated voltage of transformer primary side in distribution line.
Above formula is the transformer low voltage line loss computation model in the traditional Load flow calculation described in S4, wherein, Δ Pli
Represent the active loss power of i-th low-voltage circuit in circuit, UniRepresent i-th low-voltage circuit terminal voltage, Pi、QiDifference table
The active power of i-th low-voltage circuit end, reactive power, r in timberline roadiRepresent i-th low-voltage circuit resistance in circuit.
Above formula is the transformer high-voltage line loss computation model in the traditional Load flow calculation described in S4, wherein, Δ Phi
Represent the active loss power of i-th section of high-tension line in circuit, UNiRepresent i-th section of high-tension line terminal voltage, Phi、QhiRespectively
Represent active power, the reactive power of i-th section of high-tension line end in circuit, RiRepresent i-th section of high-tension line resistance in circuit.
S5, according to the result of calculation of S4, calculate the initial power of distribution line under different tap allocation plans, it is considered to match somebody with somebody
The impact of each transformer on-position of electric line, calculates in distribution line each point voltage drop along the line and thus draws node voltage.
Computation model in S6, the initial power according to the calculating of step S4, S5, node voltage and S4, to each configuration side
Transformer loss and its high and low pressure side circuit in case is iterated calculating, and calculates distribution line transformer group and integrally damage
Consumption：
Above formula is line transformer group's overall losses model, wherein Δ P tables line transformer group's overall losses, and n represents change
Depressor number, n=5 in this example.
S7, according to the result of calculation of S6, on the premise of working voltage fluctuation allowed band is met, select so that distribution
Line transformer group's overall losses Δ P minimum load tap changer allocation plan (K1,K2,K3,K4,K5), that is, obtain the T1 periods
The optimal tap configuration drop damage scheme of distribution line.
According to above-mentioned steps, T2 load moment information on loads are obtained, calculated according to above-mentioned steps again, the T2 periods are obtained
Distribution line distributes drop damage scheme rationally.T1, T2 period distribution line tap configuration result is shown in Table 4.
The distribution line load tap changer of table 4 distributes result rationally
Voltage assay is：
The distribution circuit electric voltage of table 5 is verified
Therefore, admissible deviation of supply volt- age of the voltage deviation that the tap configuration result in table 4 causes in national regulation
Within the scope of.
Before not carrying out to circuit tap and distributing rationally, tap is likely to be in any position, by prioritization scheme
Power attenuation is contrasted with the issuable peak power loss of day part when being not optimized, and the results are shown in Table 6.
Table 6 is lost interpretation of result
As shown in Table 6, the medium-voltage line group overall losses distributed rationally through tap are configured relative to other taps
Scheme, can reduce by about 12% or so active loss power.It follows that passing through reasonable disposition medium-voltage line load tap changer
Group's entirety active loss that medium-voltage line can effectively be reduced, to instructing distribution line economical operation significant.
In sum, the present invention has advantages below in contrast to prior art：
1st, the present invention can cause distribution transforming circuit parameter to change in view of the change of transformer voltage ratio, and based on this change
Change has been created as the distribution transforming circuit parameter variations model of no-load voltage ratio impact.The distribution transforming circuit changing pattern that this method will be counted and no-load voltage ratio affects
Type has obtained the tap configuration for causing distribution line transformer group overall losses minimum in combination with traditional tidal current computing method
Drop damage method.The present invention fully takes into account and becomes the impact for comparing Allocation transformer road parameter, compensate for not considering no-load voltage ratio in research in the past
The deficiency affected on distribution transforming line parameter circuit value, improves trend, the degree of accuracy of loss calculation and validity, reduces distribution network loss
Consumption, it is significant to Economical Operation of Power Systems.
2nd, the on-position in distribution line residing for transformer is different, the difference that its working voltage there is also, this
It is bright to take into account the impact that the line electricity pressure drop that on-position causes is produced to working voltage, make tap allocation plan have more pin
To property, systematicness, the deficiency of single transformer tap collocation method is compensate for.
3rd, the present invention reduces distribution line loss by flexible configuration existing equipment, has saved and has changed energy-saving equipment
Cost, with higher economy, practicality,
4th, the present invention can immediately arrive at the overall best configuration drop damage scheme of distribution line load tap changer, ease in use
It is convenient.
For method embodiment, in order to be briefly described, therefore it is all expressed as a series of combination of actions, but ability
Field technique personnel should know that embodiment of the present invention is not limited by described sequence of movement, because according to the present invention
Embodiment, some steps can adopt other orders or while carry out.Secondly, those skilled in the art also should know,
Embodiment described in this description belongs to preferred embodiment, involved action embodiment party not necessarily of the present invention
Necessary to formula.
Fig. 3 shows that the structural representation of damage device drops in the power distribution network of the tap configuration that one embodiment of the invention is provided,
Referring to Fig. 3, the device includes：First acquisition module 310, composite module 320, analysis module 330, processing module 340, Yi Jixuan
Module 350 is selected, wherein；
First acquisition module 310, for obtaining distribution line in each transformer and wire initial parameter information；
Composite module 320, for the tapping gear according to the initial parameter information to the tap of each transformer
It is combined, obtains multiple tap allocation plans；
Analysis module 330, for carrying out to each allocation plan no-load voltage ratio analysis respectively, obtains each allocation plan corresponding described
The Parameters variation information of distribution line；
Processing module 340, for according to the Parameters variation information, with reference to pre-established loss calculation model, acquisition respectively to be matched somebody with somebody
Put the overall losses of all transformers in the corresponding distribution line of scheme；
Selecting module 350, for contrasting the corresponding distribution line of each allocation plan in all transformers overall damage
Consumption, obtains the minimum allocation plan of overall losses.
It should be noted that the first acquisition module 310 obtains initial parameter information, and initial parameter information is sent to group
Matched moulds block 320, is combined by the tapping gear of the tap of 320 pairs of each transformers of composite module, obtains multiple taps
Head allocation plan, and each allocation plan is sent to analysis module 330,330 pairs of each allocation plans of analysis module carry out change score
Analysis obtains the Parameters variation information of the distribution line, and sends it to processing module 340, and processing module 340 is based on reception
The Parameters variation information for arriving, calculates and obtains each allocation plan correspondence overall losses, and each allocation plan correspondence overall losses are sent out
Selecting module 350 is delivered to, selecting module 350 therefrom selects the minimum allocation plan of overall losses.
It can be seen that, the present embodiment becomes the impact for comparing parameter in distribution line by considering, sets up distribution line Parameters variation
Computing module, is distribution line configuration drop damage scheme, with loss meter to be triggered based on transformer own loss characteristic and principle
Calculate accurate, the targeted and systematic advantage of drop damage scheme.
For device embodiments, due to itself and method embodiment basic simlarity, so description is fairly simple,
Related part is illustrated referring to the part of method embodiment.
The processing module 340 in the present embodiment is described in detail below：
Processing module 340 is specifically for according to the corresponding distribution wire of each allocation plan of the Parameters variation acquisition of information
The transformer loss on road and line loss；According to the transformer loss and each allocation plan of line loss acquisition are corresponding
The initial power of distribution line；It is corresponding to each allocation plan with reference to pre-established loss calculation model according to the preliminary power
The transformer loss of the distribution line and line loss are iterated calculating, obtain the corresponding distribution wire of each allocation plan
The overall losses of all transformers in road.
In a possible embodiments, processing module 340 is additionally operable to, and obtains each according to the transformer loss and line loss
The node voltage of pre- selected point in the corresponding distribution line of allocation plan；According to the preliminary power and the pre- selected point
Node voltage, with reference to pre-established loss calculation model, the transformer loss of the distribution line corresponding to each allocation plan
Calculating is iterated with line loss, wherein, the point on distribution transforming branch road that pre- selected point is exemplified as being connected to transformer, its position
Can depend on the circumstances.
For device embodiments, due to itself and method embodiment basic simlarity, so description is fairly simple,
Related part is illustrated referring to the part of method embodiment.
In another possible embodiments, described device also includes：MBM；
The MBM, for obtaining multiple tap allocation plan samples；Each tap allocation plan sample is entered
Row no-load voltage ratio is analyzed, and obtains the corresponding Parameters variation information of each tap allocation plan sample；According to each tap allocation plan sample
This corresponding Parameters variation information sets up loss calculation model.
For device embodiments, due to itself and method embodiment basic simlarity, so description is fairly simple,
Related part is illustrated referring to the part of method embodiment.
In another possible embodiments, device also includes：Second acquisition module；
Second acquisition module, for the fluctuation threshold information that gets parms, carries in the parameter fluctuation threshold information
There is the fluctuation threshold of target component；
Correspondingly, the selecting module, specifically for all changes in the corresponding distribution line of each allocation plan of contrast
The overall losses of depressor, the allocation plan for selecting overall losses minimum；If judging target in the allocation plan for know the selection
The undulating value of parameter is less than the fluctuation threshold, then the allocation plan for confirming the selection is allocation optimum scheme.
For device embodiments, due to itself and method embodiment basic simlarity, so description is fairly simple,
Related part is illustrated referring to the part of method embodiment.
It should be noted that in all parts of the device of the present invention, according to its function to be realized to therein
Part has carried out logical partitioning, but, the present invention is not only restricted to this, all parts can be repartitioned as needed or
Person combines.
The present invention all parts embodiment can be realized with hardware, or with one or more processor fortune
Capable software module is realized, or is realized with combinations thereof.In this device, PC is by realizing internet to equipment or device
Remotely control, accurately the step of each operation of control device or device.The present invention is also implemented as performing here
(for example, computer program and computer program are produced for some or all equipment of described method or program of device
Product).Being achieved in that the program of the present invention can store on a computer-readable medium, and the file or document tool that program is produced
Having can be statistical, produces data report and cpk reports etc., batch testing can be carried out to power amplifier and is counted.It should be noted that on
The present invention will be described rather than limits the invention to state embodiment, and those skilled in the art are without departing from institute
Replacement embodiment can be designed in the case of the scope of attached claim.In the claims, should not be by between bracket
Any reference symbol be configured to limitations on claims.Word "comprising" does not exclude the presence of unit not listed in the claims
Part or step.Word "a" or "an" before element does not exclude the presence of multiple such elements.The present invention can be borrowed
Help to include the hardware of some different elements and by means of properly programmed computer realizing.If listing equipment for drying
Unit claim in, several in these devices can be embodied by same hardware branch.Word first,
Second and third use do not indicate that any order.These words can be construed to title.
Although being described in conjunction with the accompanying embodiments of the present invention, those skilled in the art can be without departing from this
Various modifications and variations are made in the case of bright spirit and scope, such modification and modification are each fallen within by claims
Within limited range.
Claims (10)
1. damage method drops in a kind of power distribution network configured based on tap, it is characterised in that include：
Obtain the initial parameter information of each transformer and charge circuit in distribution line；
The tapping gear of the tap of each transformer is combined according to the initial parameter information, obtains multiple taps
Head allocation plan；
Carry out no-load voltage ratio analysis to each allocation plan respectively, obtain the Parameters variation letter of the corresponding distribution line of each allocation plan
Breath；
According to the Parameters variation information, with reference to pre-established loss calculation model, the corresponding distribution of each allocation plan is obtained
The overall losses of all transformers in circuit；
Allocation optimum scheme is selected from each allocation plan according to the overall losses.
2. method according to claim 1, it is characterised in that described according to the Parameters variation information, with reference to pre-established
Loss calculation model, it is concrete the step of the overall losses of all transformers in the corresponding distribution line of each allocation plan of acquisition
Including：
According to the Parameters variation information, the transformer loss and circuit for obtaining the corresponding distribution line of each allocation plan is damaged
Consumption；The initial power of the corresponding distribution line of each allocation plan is obtained according to the transformer loss and line loss；
According to the preliminary power, with reference to pre-established loss calculation model, the distribution line corresponding to each allocation plan
Transformer loss and line loss are iterated calculating, obtain all transformers in the corresponding distribution line of each allocation plan
Overall losses.
3. method according to claim 2, it is characterised in that in the change of the distribution line corresponding to each allocation plan
Before the step of depressor is lost and line loss is iterated calculating, methods described also includes：
Pre- selected point in the corresponding distribution line of each allocation plan is obtained according to the transformer loss and line loss
Node voltage；
Correspondingly, it is described according to the preliminary power, it is corresponding to each allocation plan described with reference to pre-established loss calculation model
The step of transformer loss of distribution line and line loss are iterated calculating specifically includes：
According to the preliminary power and the node voltage of the pre- selected point, with reference to pre-established loss calculation model, to each configuration
The transformer loss of the corresponding distribution line of scheme and line loss are iterated calculating.
4. the method according to any one of claim 1-3, it is characterised in that according to the Parameters variation information, with reference to
Pre-established loss calculation model, obtains the step of the overall losses of all transformers in the corresponding distribution line of each allocation plan
Before rapid, methods described also includes：
Obtain multiple tap allocation plan samples；
No-load voltage ratio analysis is carried out to each tap allocation plan sample, the corresponding Parameters variation of each tap allocation plan sample is obtained
Information；
The loss calculation model that meter and no-load voltage ratio affect is set up according to the corresponding Parameters variation information of each tap allocation plan sample.
5. the method according to any one of claim 1-3, it is characterised in that according to the overall losses from each configuration side
Before the step of allocation optimum scheme is selected in case, methods described also includes：
The fluctuation threshold that gets parms information, carries the fluctuation threshold of target component in the parameter fluctuation threshold information；
Correspondingly, it is described specifically to wrap the step of allocation optimum scheme is selected from each allocation plan according to the overall losses
Include：
The overall losses of all transformers in the corresponding distribution line of each allocation plan are contrasted, overall losses minimum is selected
Allocation plan, and judge whether the undulating value of target component in the allocation plan of the selection is less than the fluctuation threshold, if so,
The allocation plan for then confirming the selection is allocation optimum scheme.
6. damage device drops in a kind of power distribution network configured based on tap, it is characterised in that include：
First acquisition module, for obtaining distribution line in each transformer and wire initial parameter information；
Composite module, for carrying out group to the tapping gear of the tap of each transformer according to the initial parameter information
Close, obtain multiple tap allocation plans；
Analysis module, for carrying out to each allocation plan no-load voltage ratio analysis respectively, obtains the corresponding distribution wire of each allocation plan
The Parameters variation information on road；
Processing module, for according to the Parameters variation information, with reference to pre-established loss calculation model, obtains each allocation plan pair
The overall losses of all transformers in the distribution line answered；
Selecting module, for allocation optimum scheme to be selected from each allocation plan according to the overall losses.
7. device according to claim 6, it is characterised in that the processing module, specifically for being become according to the parameter
Change transformer loss and the line loss of the corresponding distribution line of each allocation plan of acquisition of information；Damaged according to the transformer
Consumption and line loss obtain the initial power of the corresponding distribution line of each allocation plan；According to the preliminary power, with reference to
Pre-established loss calculation model, the transformer loss of the distribution line corresponding to each allocation plan and line loss change
In generation, calculates, and obtains the overall losses of all transformers in the corresponding distribution line of each allocation plan.
8. device according to claim 7, it is characterised in that the processing module, according to the transformer loss and line
Path loss consumption obtains the node voltage of pre- selected point in the corresponding distribution line of each allocation plan；According to the preliminary power and
The node voltage of the pre- selected point, with reference to pre-established loss calculation model, the distribution line corresponding to each allocation plan
Transformer loss and line loss be iterated calculating.
9. the device according to any one of claim 6-8, it is characterised in that described device also includes：MBM；
The MBM, for obtaining multiple tap allocation plan samples；Each tap allocation plan sample is become
Than analysis, the corresponding Parameters variation information of each tap allocation plan sample is obtained；According to each tap allocation plan sample pair
The Parameters variation information answered sets up loss calculation model.
10. the device according to any one of claim 6-8, it is characterised in that described device also includes：Second obtains mould
Block；
Second acquisition module, for the fluctuation threshold information that gets parms, in the parameter fluctuation threshold information mesh is carried
The fluctuation threshold of mark parameter；
Correspondingly, the selecting module, specifically for all transformers in the corresponding distribution line of each allocation plan of contrast
Overall losses, the allocation plan for selecting overall losses minimum, and judge the ripple of target component in the allocation plan of the selection
Whether dynamic value is less than the fluctuation threshold, and the allocation plan for if so, then confirming the selection is allocation optimum scheme.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610976383.5A CN106655161A (en) | 2016-11-07 | 2016-11-07 | Loss reducing method for split joint arrangement in consideration of the distribution parameter change and installation position influence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610976383.5A CN106655161A (en) | 2016-11-07 | 2016-11-07 | Loss reducing method for split joint arrangement in consideration of the distribution parameter change and installation position influence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106655161A true CN106655161A (en) | 2017-05-10 |
Family
ID=58805194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610976383.5A Pending CN106655161A (en) | 2016-11-07 | 2016-11-07 | Loss reducing method for split joint arrangement in consideration of the distribution parameter change and installation position influence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106655161A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110802A (en) * | 2017-12-29 | 2018-06-01 | 国网甘肃省电力公司电力科学研究院 | A kind of grid-connected Poewr control method |
| CN114050591A (en) * | 2021-11-09 | 2022-02-15 | 福州大学 | Method for optimizing voltage of offshore wind power plant booster station to realize loss reduction of power transmission project |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930047A (en) * | 2010-08-27 | 2010-12-29 | 西安交通大学 | On-line monitoring device of transformer winding state and monitoring method thereof |
-
2016
- 2016-11-07 CN CN201610976383.5A patent/CN106655161A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930047A (en) * | 2010-08-27 | 2010-12-29 | 西安交通大学 | On-line monitoring device of transformer winding state and monitoring method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 唐寅生等: "《电网中变压器分接头优化组合原则及其降损效果的探讨》", 《电力技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110802A (en) * | 2017-12-29 | 2018-06-01 | 国网甘肃省电力公司电力科学研究院 | A kind of grid-connected Poewr control method |
| CN108110802B (en) * | 2017-12-29 | 2020-07-03 | 国网甘肃省电力公司电力科学研究院 | Grid-connected power control method |
| CN114050591A (en) * | 2021-11-09 | 2022-02-15 | 福州大学 | Method for optimizing voltage of offshore wind power plant booster station to realize loss reduction of power transmission project |
| CN114050591B (en) * | 2021-11-09 | 2024-01-30 | 福州大学 | Method for reducing loss of power transmission engineering by optimizing voltage of offshore wind farm booster station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Biswas et al. | Optimum distributed generation placement with voltage sag effect minimization | |
| CN102999792B (en) | A kind of method of comprehensive evaluation of power distribution network optimization allocation | |
| Mahdavi et al. | Evaluating the effect of load growth on annual network losses in TNEP considering bundle lines using DCGA | |
| Abass et al. | Survey about impact voltage instability and transient stability for a power system with an integrated solar combined cycle plant in Iraq by using ETAP | |
| CN106097156A (en) | Line Loss Calculation method and system | |
| CN110414810A (en) | Meter and the multiterminal intelligence Sofe Switch Optimal Configuration Method and system for losing load risk | |
| CN104156531A (en) | Fault current limiter distribution point optimization and capacity selection method taking operation loss into consideration | |
| CN108808664A (en) | A kind of urban power network planning method considering sub-area division optimization operation | |
| Idoniboyeobu et al. | Analysisfor Electical Load Flow Studies in Port Harcourt, Nigeria, Using Newton Raphson Fast Decoupled Techniques | |
| CN106655161A (en) | Loss reducing method for split joint arrangement in consideration of the distribution parameter change and installation position influence | |
| CN105762921B (en) | A kind of cyclization of based superconductive current limiter turns method of supplying power to | |
| Gabash et al. | On the control of main substations between transmission and distribution systems | |
| CN113888350A (en) | Power grid planning project ordering method considering power supply reliability in transition period | |
| Esfahani et al. | Optimal real-time congestion management in power markets based on particle swarm optimization | |
| CN102315646B (en) | Maximum power capability based power distribution network communication validity and communication simplifying method | |
| Abapour et al. | Maximizing penetration level of distributed generations in active distribution networks | |
| AlHajri et al. | A novel discrete particle swarm optimization algorithm for optimal capacitor placement and sizing | |
| CN101957877B (en) | Over-line fault network equating method of multi-circuit transmission lines in one tower with different voltage classes | |
| Patra et al. | Voltage sag assessment of distribution system using Monte Carlo simulation | |
| Jahanger et al. | Combining fault location estimates for a multi-tapped distribution line | |
| CN104820954B (en) | The system of selection of 110kV substation locations and system | |
| CN107565547A (en) | A kind of power distribution network operation reliability evaluation and optimization system | |
| CN102651555A (en) | Capacitance placement in wind farms | |
| Shayanfar et al. | Multi-Objective allocation of DG simultaneous with capacitor and protective device including load model | |
| CN102420426A (en) | Power grid partial loss reduction method based on injection power sensitivity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |