CN108718088A - On-load voltage regulation capacity transfer distribution transformer replaces judgment method and decision system - Google Patents
On-load voltage regulation capacity transfer distribution transformer replaces judgment method and decision system Download PDFInfo
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- CN108718088A CN108718088A CN201810739333.4A CN201810739333A CN108718088A CN 108718088 A CN108718088 A CN 108718088A CN 201810739333 A CN201810739333 A CN 201810739333A CN 108718088 A CN108718088 A CN 108718088A
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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
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Abstract
Judgment method is replaced the present invention relates to on-load voltage regulation capacity transfer distribution transformer and decision system, judgment method include：The loss of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer is compared and analyzed；Calculate high load capacity mean-square value, underload mean-square value and year run time ratio；It calculates on-load voltage regulation capacity transfer distribution transformer and replaces criterion, can on-load voltage regulation capacity transfer distribution transformer be changed to regular distribution transformer and is judged, judging result is obtained.It can directly judge that can electric energy alternative point be changed to on-load voltage regulation capacity transfer distribution transformer in this way, fully consider that electric energy substitutes Variation Features, the active power loss characteristic of distribution transformer and the operation characteristic of on-load voltage regulation capacitance-adjustable transformer of lower power load, it can rationally utilize on-load voltage regulation capacity transfer distribution transformer to replace regular distribution transformer, effectively reduce the distribution transformer running wastage that electric energy substitutes lower urban power distribution network.
Description
Technical field
The present invention relates to on-load voltage regulation capacity transfer distribution transformer fields, more particularly to on-load voltage regulation capacity transfer distribution transformer
Device replaces judgment method and decision system.
Background technology
National energy department has put into effect a series of file that related electric energy substitute, to promote green energy resource gradually to substitute dirt
The energy is contaminated, the discharge of polluter is reduced.Urban power distribution network electric energy, which substitutes, under this call gradually rises, including is adopted with electricity
Warm, using electricity instead of coal, replacing oil by electricity and with electricity for gas etc. so that significant changes occur for the power load in power distribution network.
In the case where electric energy substitutes background, power distribution network supply load peak-valley difference continues to increase, and conventional distribution transformer cannot spirit
The variation living for adapting to power load, distribution transformer no-load loss significantly increase, and are unfavorable for the economical operation of power distribution network.And have
Voltage adjustment of on-load capacity transfer distribution transformer can use high-volume run, when low ebb load to switch to low capacity in peak hours,
It can effectively solve the problems, such as that electric energy substitutes caused electric energy loss.Load peak-valley difference under electric energy substitutes is larger, according to load peak
Value configuration regular distribution transformer, will dramatically increase the distribution transformer no-load loss of underload period, brings more electric energy
Loss, and on-load voltage regulation capacity transfer distribution transformer can be switched to low capacity operation in the underload period, can effectively reduce distribution
Transformer noload losses.
However, not all regular distribution transformer is suitable for being changed to on-load voltage regulation capacity transfer and matches after electric energy substitutes
Piezoelectric transformer.Therefore, it is necessary to rationally on-load voltage regulation capacity transfer distribution transformer be utilized to replace regular distribution transformer, with effective
Reduce the distribution transformer running wastage that electric energy substitutes lower urban power distribution network.
Invention content
Based on this, it is necessary to provide a kind of on-load voltage regulation capacity transfer distribution transformer and replace judgment method and decision system.
A kind of on-load voltage regulation capacity transfer distribution transformer replacement judgment method comprising：To regular distribution transformer and there is load
The loss of pressure regulating and capacitance regulating distribution transformer compares and analyzes；According to apparent energy curve is continued load year, it is equal to calculate high load capacity
Side's value, underload mean-square value and year run time ratio；According to the high load capacity mean-square value, the underload mean-square value with it is described
Can year run time ratio and on-load voltage regulation capacity transfer distribution transformer replace criterion, load has been changed to regular distribution transformer
Pressure regulating and capacitance regulating distribution transformer is judged, judging result is obtained.
Above-mentioned on-load voltage regulation capacity transfer distribution transformer replaces judgment method, by regular distribution transformer and having load to adjust
The loss of pressure capacity transfer distribution transformer compares and analyzes, and can directly judge that can electric energy alternative point be changed to on-load voltage regulation
Capacity transfer distribution transformer has fully considered that electric energy substitutes the active power damage of the Variation Features of lower power load, distribution transformer
The operation characteristic for consuming characteristic and on-load voltage regulation capacitance-adjustable transformer can effectively judge that electric energy substitutes lower regular distribution transformation
Can device be changed to on-load voltage regulation capacity transfer distribution transformer, rationally replace conventional match using on-load voltage regulation capacity transfer distribution transformer
Piezoelectric transformer effectively reduces the distribution transformer running wastage that electric energy substitutes lower urban power distribution network, is electric energy in urban power distribution network
Distribution transforming planning under substituting provides the foundation.
The analysis includes that regular distribution transformer is changed to on-load voltage regulation capacity transfer distribution in one of the embodiments,
The active loss and the annual active loss saved saved after transformer.
The high load capacity is critical higher than on-load voltage regulation capacity transfer distribution transformer capacity transfer negative in one of the embodiments,
The load of load, the underload are the load less than on-load voltage regulation capacity transfer distribution transformer capacity transfer critical load.
The year run time ratio is by continuing apparent energy curve the load year and having in one of the embodiments,
The capacity transfer critical load of voltage adjustment of on-load capacity transfer distribution transformer determines.
The on-load voltage regulation capacity transfer distribution transformer replaces the sum that criterion is four numerical value in one of the embodiments,
Value, wherein four numerical value includes：First differential loss coefficient, the product of the second differential loss coefficient and high load capacity mean-square value,
Third differential loss coefficient with year run time than product, when the 4th differential loss coefficient and underload mean-square value and year run
Between ratio product.
First differential loss coefficient, the second differential loss coefficient, third differential loss system in one of the embodiments,
Number carries out pair with the 4th differential loss coefficient according to the loss of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer
It is obtained than analysis.
The on-load voltage regulation capacity transfer distribution transformer replacement judgment method further includes in one of the embodiments,：Output
The judging result.
The on-load voltage regulation capacity transfer distribution transformer replacement judgment method further includes in one of the embodiments,：According to
The judging result replaces on-load voltage regulation capacity transfer distribution transformer.
On-load voltage regulation capacity transfer distribution is according to priority sequentially replaced according to the judging result in one of the embodiments,
Transformer.
A kind of on-load voltage regulation capacity transfer distribution transformer replacement decision system, uses on-load voltage regulation described in any of the above-described
Capacity transfer distribution transformer is replaced judgment method and is realized.
Above-mentioned on-load voltage regulation capacity transfer distribution transformer replaces decision system, more using on-load voltage regulation capacity transfer distribution transformer
Judgment method is changed, it is special to have fully considered that electric energy substitutes the Variation Features of lower power load, the active power loss of distribution transformer
Property and on-load voltage regulation capacitance-adjustable transformer operation characteristic, can effectively judge that electric energy substitutes lower regular distribution transformer energy
It is no to be changed to on-load voltage regulation capacity transfer distribution transformer, rationally regular distribution is replaced using on-load voltage regulation capacity transfer distribution transformer become
Depressor effectively reduces the distribution transformer running wastage that electric energy substitutes lower urban power distribution network, is that electric energy substitutes in urban power distribution network
Under distribution transforming planning provide the foundation.
Description of the drawings
Fig. 1 is the schematic diagram that on-load voltage regulation capacity transfer distribution transformer of the present invention replaces judgment method one embodiment.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings to the present invention
Specific implementation mode be described in detail.Many details are elaborated in the following description in order to fully understand this
Invention.But the invention can be embodied in many other ways as described herein, those skilled in the art can be
Without prejudice to doing similar improvement in the case of intension of the present invention, therefore the present invention is not limited by following public specific embodiment.
It should be noted that when element is referred to as " being fixed on " or " being set to " another element, it can be directly another
On one element or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be with
It is directly to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " water
It is flat ", "left", "right" and similar statement for illustrative purposes only, be not offered as being unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article and the technical field for belonging to the present invention
The normally understood meaning of technical staff it is identical.Used term is intended merely to retouch in the description of the invention herein
State the purpose of specific embodiment, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one
Or any and all combinations of multiple relevant Listed Items.
One embodiment is a kind of on-load voltage regulation capacity transfer distribution transformer replacement judgment method comprising：Match to conventional
The loss of piezoelectric transformer and on-load voltage regulation capacity transfer distribution transformer compares and analyzes；Continue apparent work(according to the load year
Rate curve calculates high load capacity mean-square value, underload mean-square value and year run time ratio；According to the high load capacity mean-square value, described
Underload mean-square value replaces criterion with the year run time ratio and the on-load voltage regulation capacity transfer distribution transformer, matches to conventional
Can piezoelectric transformer be changed to on-load voltage regulation capacity transfer distribution transformer and be judged, obtain judging result.Above-mentioned on-load voltage regulation tune
Hold distribution transformer and replace judgment method, passes through the loss to regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer
It compares and analyzes, can directly judge that can electric energy alternative point be changed to on-load voltage regulation capacity transfer distribution transformer, fully consider
Electric energy substitutes the active power loss characteristic and on-load voltage regulation capacity transfer of the Variation Features of lower power load, distribution transformer
The operation characteristic of transformer can effectively judge that can electric energy substitute lower regular distribution transformer and be changed to on-load voltage regulation tune
Hold distribution transformer, rationally replace regular distribution transformer using on-load voltage regulation capacity transfer distribution transformer, effectively reduces electric energy and replace
For the distribution transformer running wastage of lower urban power distribution network, the distribution transforming planning under being substituted for electric energy in urban power distribution network provides
Basis.
Further, in one of the embodiments, to regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer
Loss compare and analyze, including：Apparent energy curve is continued using load year, to regular distribution transformer and has load to adjust
The loss of pressure capacity transfer distribution transformer compares and analyzes.Further, in one of the embodiments, using holding in load year
Continuous apparent energy curve, it is compared and analyzed to the loss of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer
Before, the on-load voltage regulation capacity transfer distribution transformer replaces judgment method and further includes：Acquisition continues apparent energy curve in load year.
It obtains in one of the embodiments, and continues apparent energy curve load year, including：It obtains holding in load year according to historical data
Continuous apparent energy curve；Further, it predicts to obtain according to historical data and continues apparent energy curve in load year.Further,
The loss of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer is carried out to score in one of the embodiments,
Analysis derives high load capacity mean-square value, underload mean-square value and year run time than this three indexs for subsequently calculating.
In one of the embodiments, to the loss of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer into
Row comparative analysis, including：The loss of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer is compared and analyzed,
Obtain analysis result.In one of the embodiments, it is described analysis or its described analysis result include regular distribution transformer more
It is changed to the active loss saved after on-load voltage regulation capacity transfer distribution transformer and the annual active loss saved, that is, match to conventional
The loss of piezoelectric transformer and on-load voltage regulation capacity transfer distribution transformer compares and analyzes, including：To regular distribution transformer and have
The loss of voltage adjustment of on-load capacity transfer distribution transformer compares and analyzes, and obtains analysis result；Wherein, the analysis is comparative analysis
Or its described analysis result includes that regular distribution transformer is changed to the active damage saved after on-load voltage regulation capacity transfer distribution transformer
Consume Δ Ploss(t) and the annual active loss Δ W savedloss.In this way, by comparing regular distribution transformer and thering is load to adjust
The loss characteristic for pressing capacity transfer distribution transformer obtains after regular distribution transformer is changed to on-load voltage regulation capacity transfer distribution transformer
The active loss of saving and the annual active loss saved.
The high load capacity is critical higher than on-load voltage regulation capacity transfer distribution transformer capacity transfer negative in one of the embodiments,
The load of load, the underload are the load less than on-load voltage regulation capacity transfer distribution transformer capacity transfer critical load.One wherein
In embodiment, the year run time ratio continues apparent energy curve and on-load voltage regulation capacity transfer distribution transformer by the load year
The capacity transfer critical load of device determines.
In one of the embodiments, under the premise of not considering distribution transforming cost of investment, from the angle of saving energy and decreasing loss, institute
State on-load voltage regulation capacity transfer distribution transformer replace criterion be four numerical value and value, wherein four numerical value includes：First damage
Consume coefficient of variation, the product of the second differential loss coefficient and high load capacity mean-square value, third differential loss coefficient and year run time ratio
Product, the product of the 4th differential loss coefficient and underload mean-square value and year run time ratio.In one of the embodiments,
One differential loss coefficient, the second differential loss coefficient, third differential loss coefficient and the 4th differential loss coefficient are according to routine
The loss of distribution transformer and on-load voltage regulation capacity transfer distribution transformer compares and analyzes to obtain.
The on-load voltage regulation capacity transfer distribution transformer replacement judgment method further includes in one of the embodiments,：Output
The judging result.And/or the on-load voltage regulation capacity transfer distribution transformer replaces judgment method in one of the embodiments,
Further include：On-load voltage regulation capacity transfer distribution transformer is replaced according to the judging result.In one of the embodiments, according to institute
It states judging result and according to priority sequentially replaces on-load voltage regulation capacity transfer distribution transformer.In this way, can be according to judging result flexibly more
Change on-load voltage regulation capacity transfer distribution transformer.
The on-load voltage regulation capacity transfer distribution transformer replacement judgment method includes in one of the embodiments,：1. to normal
Rule distribution transformer and the loss of on-load voltage regulation capacity transfer distribution transformer compare and analyze；2. for apparent work(is continued in load year
Rate curve, it is proposed that high load capacity mean-square value μ, underload mean-square value ν and year these three characteristic indexs of run time ratio λ and three
The calculation of person；3. under the premise of not considering distribution transforming cost of investment, from the angle of saving energy and decreasing loss, according to on-load voltage regulation tune
Can appearance distribution transformer replacement criterion be changed to on-load voltage regulation capacity transfer distribution transformer to regular distribution transformer and sentence
It is disconnected.This method has fully considered that electric energy substitutes the active power loss characteristic of the Variation Features of lower power load, distribution transformer
And the operation characteristic of on-load voltage regulation capacity transfer distribution transformer, it can effectively judge that electric energy substitutes lower regular distribution transformer
It can be changed to on-load voltage regulation capacity transfer distribution transformer, the distribution transforming planning under being substituted for electric energy in urban power distribution network provides base
Plinth.
In one of the embodiments, as shown in Figure 1, a kind of on-load voltage regulation capacity transfer distribution transformer replaces judgment method,
Its include the following steps in some or all of.
S1 compares and analyzes regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer, i.e., to regular distribution
The loss of transformer and on-load voltage regulation capacity transfer distribution transformer compares and analyzes.
Distribution transformer includes regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer, and distribution transformer is active
Loss is the chief component of losses of distribution network, to the damage of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer
During consumption compares and analyzes, distribution transformer active loss includes that no-load loss caused by exciting conductance and winding resistance cause
Load loss.For regular distribution transformer, active lossIt can be calculated by following formula：
Wherein, SNFor distribution transformer rated capacity, P0For the no-load loss of distribution transformer, PkFor distribution transformer
Short circuit loss, S (t) are the apparent energy of distribution transformer load.S2(t) square number for being S (t),For SNSquare number.
Wherein, on-load voltage regulation capacity transfer distribution transformer has two working capacities of size, on-load voltage regulation capacity transfer distribution transformer
Device can carry out capacity switching, the loss to regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer according to actual load
In comparing and analyzing, according to on-load voltage regulation capacity transfer distribution transformer size and capacity run the period load condition, obtains carrying and adjust
Press the active loss P of capacity transfer distribution transformerc loss(t)。
Wherein, SNHFor the big rated capacity of on-load voltage regulation capacity transfer distribution transformer, SNLBecome for on-load voltage regulation capacity transfer distribution
The small amount constant volume of depressor；ScFor the capacity transfer critical load of on-load voltage regulation capacity transfer distribution transformer；P0HMatch for on-load voltage regulation capacity transfer
No-load loss under piezoelectric transformer large capacity, P0LFor the no-load loss under on-load voltage regulation capacity transfer distribution transformer low capacity；PkH
For the short circuit loss under on-load voltage regulation capacity transfer distribution transformer large capacity, PkLFor on-load voltage regulation capacity transfer distribution transformer low capacity
Under short circuit loss.For SNLSquare number,For SNHSquare number.
To compare the loss characteristic of loading capacitance-regulating distribution transformer and regular distribution transformer, to regular distribution transformer
During loss with on-load voltage regulation capacity transfer distribution transformer compares and analyzes, matched according to loading capacitance-regulating distribution transformer and routine
The active power loss of piezoelectric transformer obtain regular distribution transformer be changed to after loading capacitance-regulating distribution transformer save it is active
Δ P is lostloss(t) and whole year saves active loss Δ WlossFor：
In formula：SNH、SNLFor the size rated capacity of on-load voltage regulation capacity transfer distribution transformer；ScMatch for on-load voltage regulation capacity transfer
The capacity transfer critical load of piezoelectric transformer；P0、PkThe respectively no-load loss and short circuit loss of distribution transformer, P0H、P0LRespectively
No-load loss under on-load voltage regulation capacity transfer distribution transformer size and capacity；PkH、 PkLRespectively on-load voltage regulation capacity transfer distribution transformer
Short circuit loss under device size and capacity；For SLSquare number,For SHSquare number；Wherein, tHMatch for on-load voltage regulation capacity transfer
Piezoelectric transformer large capacity year run time, tLFor on-load voltage regulation capacity transfer distribution transformer low capacity year run time, it is small that τ is equal to 1
When, the 8760 year hourage to be calculated by 365 days, SH(t)、SL(t) it is respectively that on-load voltage regulation capacity transfer distribution transformer size is held
The apparent energy of the lower load of amount operation, value determine as the following formula：
It is square to calculate high load capacity according to apparent energy curve is continued in the analysis result of comparative analysis and load year by S2
Value, underload mean-square value and year run time ratio；I.e. after comparative analysis, continue apparent energy curve for year, it is proposed that
High load capacity mean-square value μ, underload mean-square value ν and year these three characteristic indexs of run time ratio λ and the calculation formula of three.
For high load capacity mean-square value μ, the load that will be above on-load voltage regulation capacity transfer distribution transformer capacity transfer critical load is known as
High load capacity, on-load voltage regulation capacity transfer distribution transformer is operated in large capacity state under high load capacity, is to weigh by large capacity on-load voltage regulation
The load level of capacity transfer distribution transformer power supply, according to apparent energy curve is continued year, high load capacity mean-square value μ is used with lower section
Formula is calculated：
Wherein：F (t) is to continue apparent energy curvilinear function, f in year-1(t) it is the inverse function of the function.
It is referred to as low less than the load of on-load voltage regulation capacity transfer distribution transformer capacity transfer critical load for underload mean-square value ν
Load, on-load voltage regulation capacity transfer distribution transformer is operated in low capacity state under underload, and the underrun time becomes equal to distribution
Depressor year, electrification time subtracted the heavy-duty service time, and thus underload mean-square value ν is calculated in the following ways：
Wherein：tMFor distribution transformer year electrification time, SminFor year minimum Apparent Power.
For year run time ratio λ, characterization continues the high underrun time difference in apparent energy curve year,
Capacity transfer critical load by continuing apparent energy curve and on-load voltage regulation capacity transfer distribution transformer year determines, i.e. year run time
It is calculated in the following ways than λ：
S3 has load to adjust with the year run time according to the high load capacity mean-square value, the underload mean-square value than calculating
It presses capacity transfer distribution transformer to replace criterion, criterion is replaced according to the on-load voltage regulation capacity transfer distribution transformer, regular distribution is become
Can depressor be changed to on-load voltage regulation capacity transfer distribution transformer and be judged, obtain judging result；Wherein, do not considering distribution transforming
Under the premise of cost of investment, from the angle of saving energy and decreasing loss, according to the high load capacity mean-square value, the underload mean-square value and institute
State a year run time ratio obtain on-load voltage regulation capacity transfer distribution transformer replace criterion h (μ, ν, λ) be：
Wherein：First differential loss coefficient k1, the second differential loss coefficient k2, third differential loss coefficient k3, the 4th damage
Consume coefficient of variation k4Respectively regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer differential loss coefficient.Wherein,
One differential loss coefficient k1For the no-load loss P of distribution transformer0With the sky under on-load voltage regulation capacity transfer distribution transformer large capacity
Load-loss P0HDifference；Second differential loss coefficient k2For distribution transformer short circuit loss withRatio subtracted load adjust
Press capacity transfer distribution transformer large capacity under short circuit loss withRatio；Third differential loss coefficient k3For distribution transformer
No-load loss P0With the no-load loss P under on-load voltage regulation capacity transfer distribution transformer low capacity0LDifference；4th differential loss
Coefficient k4For distribution transformer short circuit loss withRatio subtract under on-load voltage regulation capacity transfer distribution transformer low capacity
Short circuit loss withRatio.
In this way, on the basis of high load capacity mean-square value μ, underload mean-square value ν and year run time ratio λ, adjusted according to having to carry
Can pressure capacity transfer distribution transformer replaces criterion be changed to the progress of on-load voltage regulation capacity transfer distribution transformer to regular distribution transformer
Judge, when h (μ, ν, λ) is more than 0, then judging result, which is regular distribution transformer, can be changed to the change of on-load voltage regulation capacity transfer distribution
Depressor, when h (μ, ν, λ) is not more than 0, then judging result cannot be changed to on-load voltage regulation capacity transfer for regular distribution transformer and match
Piezoelectric transformer.
On this basis, it determines it is possible to further execute the replacement of on-load voltage regulation capacity transfer distribution transformer according to judging result
Corresponding regular distribution transformer is changed to on-load voltage regulation capacity transfer distribution transformer or adjustment on-load voltage regulation capacity transfer distribution by plan
Transformer.
One embodiment is that a kind of on-load voltage regulation capacity transfer distribution transformer replacement decision system uses any of the above-described implementation
The example on-load voltage regulation capacity transfer distribution transformer is replaced judgment method and is realized.Further, on-load voltage regulation capacity transfer distribution transformer
Replacing decision system, there is analytical equipment, the analytical equipment to be used for regular distribution transformer and on-load voltage regulation capacity transfer distribution
The loss of transformer compares and analyzes；Calculate high load capacity mean-square value, underload mean-square value and year run time ratio；According to institute
High load capacity mean-square value, the underload mean-square value are stated with the year run time than calculating on-load voltage regulation capacity transfer distribution transformer
Criterion is replaced, criterion is replaced according to the on-load voltage regulation capacity transfer distribution transformer, can regular distribution transformer be changed to
Voltage adjustment of on-load capacity transfer distribution transformer is judged, judging result is obtained.Above-mentioned on-load voltage regulation capacity transfer distribution transformer replaces decision
System replaces judgment method using on-load voltage regulation capacity transfer distribution transformer, has fully considered that electric energy substitutes lower power load
The operation characteristic of Variation Features, the active power loss characteristic of distribution transformer and on-load voltage regulation capacitance-adjustable transformer, Neng Gouyou
It imitates ground and judges that can electric energy substitute lower regular distribution transformer and be changed to on-load voltage regulation capacity transfer distribution transformer, rationally utilizing has
Voltage adjustment of on-load capacity transfer distribution transformer replaces regular distribution transformer, and the distribution for effectively reducing urban power distribution network under electric energy substitutes becomes
Depressor running wastage, the distribution transforming planning under being substituted for electric energy in urban power distribution network provide the foundation.
Further, the analytical equipment includes for electric installation, man machine operation interface, data acquisition device, data inventory
Storage device, central processing unit and display device；It is described to be acquired respectively with the man machine operation interface, the data for electric installation
Device, the database storage arrangement, the central processing unit and display device connection, it is described to be used to supply for electric installation
Electricity；The data acquisition device acquires the data of each distribution transformer for connecting each distribution transformer；The distribution
Transformer includes regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer；The database storage arrangement is for storing
The model parameter of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer；The man machine operation interface is used for inputting
Family instructs；The display device is for showing；The central processing unit is adopted with the man machine operation interface, the data respectively
Acquisition means, the database storage arrangement and display device connection；The central processing unit is used to become regular distribution
The loss of depressor and on-load voltage regulation capacity transfer distribution transformer compares and analyzes；Calculate high load capacity mean-square value, underload mean-square value
With year run time ratio；Had than calculating with the year run time according to the high load capacity mean-square value, the underload mean-square value
Voltage adjustment of on-load capacity transfer distribution transformer replaces criterion, and criterion is replaced according to the on-load voltage regulation capacity transfer distribution transformer, matches to conventional
Can piezoelectric transformer be changed to on-load voltage regulation capacity transfer distribution transformer and be judged, obtain judging result, be filled by the display
It sets and is shown.
Further, the data acquisition device becomes for acquiring regular distribution transformer and on-load voltage regulation capacity transfer distribution
The data of depressor.Further, the central processing unit includes data processing chip, data transmission module, arithmetic unit and storage
Device；The data transmission module is filled with the man machine operation interface, the data acquisition device, the database purchase respectively
It sets and the display device connects；The arithmetic unit respectively with the data processing chip, the data transmission module and described
Memory connects.
The man machine operation interface is used to receive user instructions in one of the embodiments, wherein one embodiment
In, user is used for through man machine operation interface input instruction；The man machine operation interface in one of the embodiments,
For receiving the regular distribution transformer model input by user for waiting for decision and on-load voltage regulation capacity transfer distribution transformer model, and
Distribution transformer model is sent to central processing unit；Wherein, distribution transformer model includes regular distribution transformer and has load
Pressure regulating and capacitance regulating distribution transformer model.In one of the embodiments, the man machine operation interface include touch screen, keyboard and/
Or handwriting pad.The man machine operation interface waits for the regular distribution transformation of decision for user's input in one of the embodiments,
Device and on-load voltage regulation capacity transfer distribution transformer model, and distribution transformer model is sent to central processing unit.One wherein
In embodiment, the data acquisition device is used to acquire the data of each distribution transformer；Institute in one of the embodiments,
It further includes being set to the central processing unit to acquire with the data to state on-load voltage regulation capacity transfer distribution transformer and replace decision device
Data and curves generation module between device.The data and curves generation module is used for according to each in one of the embodiments,
The data of a distribution transformer generate year lasting load curve, and are transferred to the central processing unit；One embodiment wherein
In, the data and curves generation module is integrally disposed in the data acquisition device.It is described in one of the embodiments,
Data acquisition device is used to acquire on-load voltage regulation capacity transfer distribution transformer and replaces the year load data of decision point, and generates and hold in year
Continuous load curve is sent to central processing unit.
The display device includes that order preview interface display module exports boundary with result in one of the embodiments,
Face display module, may be also referred to simply as the display device includes order preview interface and result output interface.A reality wherein
It applies in example, the order preview interface display module and the integrally disposed formation one of the result output interface display module are whole
Body.The order preview interface is for showing control command input by user in one of the embodiments,；The result is defeated
Go out interface for showing that on-load voltage regulation capacity transfer distribution transformer obtained by central processing unit replaces the result of decision.A reality wherein
It applies in example, a kind of on-load voltage regulation capacity transfer distribution transformer replaces decision system, which includes that man machine operation interface, data are adopted
Acquisition means, database, central processing unit, order preview interface and result output interface.The man machine operation interface is used for user
Input waits for the regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer model of decision, and distribution transformer model is sent out
It is sent to central processing unit；The data acquisition device is used to acquire the year that on-load voltage regulation capacity transfer distribution transformer replaces decision point
Load data, and generate a year lasting load curve and be sent to central processing unit；The database stores different model on-load voltage regulation
The basic parameter of capacity transfer distribution transformer and regular distribution transformer；The central processing unit can calculate a year continuous loading song
The characteristic index of line, and the distribution transformer model provided based on man machine operation interface, realize on-load voltage regulation capacity transfer distribution transformer
Device replaces decision；The order preview interface is for showing control command input by user；The result output interface is for showing
Show that on-load voltage regulation capacity transfer distribution transformer obtained by central processing unit replaces the result of decision.In such manner, it is possible to effectively judge that electric energy replaces
It can be changed to on-load voltage regulation capacity transfer distribution transformer for lower regular distribution transformer, under being substituted for electric energy in urban power distribution network
Distribution transforming planning provide the foundation.
The database storage arrangement is matched for storing various model on-load voltage regulation capacity transfers in one of the embodiments,
The basic parameter of piezoelectric transformer and regular distribution transformer, that is, store on-load voltage regulation capacity transfer distribution transformer and regular distribution becomes
The model parameter of depressor；The database storage arrangement includes on-load voltage regulation capacity transfer distribution transformer in one of the embodiments,
Type parameter memory module and regular distribution transformer model parameter memory module.It is described in one of the embodiments, to have
Voltage adjustment of on-load capacity transfer distribution transformer model parameter memory module is used to store the model ginseng of on-load voltage regulation capacity transfer distribution transformer
Number；The regular distribution transformer model parameter memory module is used to store the model parameter of regular distribution transformer.
The central processing unit further includes the comparator being connect with the arithmetic unit in one of the embodiments,；At it
In middle one embodiment, the comparator is used to compare the type of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer
Number and parameter differences, comparison result is fed back into the arithmetic unit.The central processing unit is used in one of the embodiments,
In the characteristic index for calculating year lasting load curve, and the distribution transformer model provided based on man machine operation interface, realization are had
Voltage adjustment of on-load capacity transfer distribution transformer replaces decision.The central processing unit is used for according to the number in one of the embodiments,
The data acquired according to harvester, and based on the instruction of man machine operation interface input, generate on-load voltage regulation capacity transfer distribution
Transformer replaces decision, and is shown by the display device.The arithmetic unit is used in one of the embodiments,
The characteristic index of year lasting load curve is calculated, and the distribution transformer model provided based on man machine operation interface, realization are had
Voltage adjustment of on-load capacity transfer distribution transformer replaces decision.The data transmission module is described for receiving in one of the embodiments,
The instruction of the data that data acquisition device is acquired and man machine operation interface input, and according to the instruction of the arithmetic unit
The model parameter of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer, institute are obtained from the database storage arrangement
State data processing chip for according to the instruction of the arithmetic unit carry out data processing, the memory for it is data cached and/
Or the operation result of the storage arithmetic unit；The arithmetic unit replaces decision for generating on-load voltage regulation capacity transfer distribution transformer
Operation result, and the display device is transferred to by the data transmission module.
It further includes output that the on-load voltage regulation capacity transfer distribution transformer, which replaces decision device, in one of the embodiments,
Device, the output device are connect with the central processing unit, and the output device is matched for exporting the on-load voltage regulation capacity transfer
Piezoelectric transformer replaces decision；The output device is used to export to the mobile terminal of administrative staff in one of the embodiments,
The on-load voltage regulation capacity transfer distribution transformer replaces decision；In one of the embodiments, the mobile terminal include mobile phone,
Tablet or laptop etc..
It further includes processing that the on-load voltage regulation capacity transfer distribution transformer, which replaces decision device, in one of the embodiments,
Device, the processing unit are connect with the central processing unit, and the processing unit is for replacing or adjusting on-load voltage regulation capacity transfer
Distribution transformer.Module and adjustment module are replaced in the processing unit setting in one of the embodiments,.In this way, can be square
Just the replacement and/or adjustment of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer are realized.
It should be noted that other embodiments of the invention further include, the mutually group of the technical characteristic in the various embodiments described above
Close the on-load voltage regulation capacity transfer distribution transformer replacement judgment method and decision system that is formed by, can implement.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of on-load voltage regulation capacity transfer distribution transformer replaces judgment method, which is characterized in that including：
The loss of regular distribution transformer and on-load voltage regulation capacity transfer distribution transformer is compared and analyzed；
High load capacity mean-square value, underload mean-square value and year run time ratio are calculated according to apparent energy curve is continued load year；
According to the high load capacity mean-square value, the underload mean-square value and the year run time ratio and on-load voltage regulation capacity transfer distribution
Can transformer replaces criterion, be changed to on-load voltage regulation capacity transfer distribution transformer to regular distribution transformer and judge, obtain
Judging result.
2. on-load voltage regulation capacity transfer distribution transformer replaces judgment method according to claim 1, which is characterized in that the analysis
It is changed to the active loss saved after on-load voltage regulation capacity transfer distribution transformer including regular distribution transformer and annual saves
Active loss.
3. on-load voltage regulation capacity transfer distribution transformer replaces judgment method according to claim 1, which is characterized in that described high negative
Lotus is the load higher than on-load voltage regulation capacity transfer distribution transformer capacity transfer critical load, and the underload is less than on-load voltage regulation capacity transfer
The load of distribution transformer capacity transfer critical load.
4. on-load voltage regulation capacity transfer distribution transformer replaces judgment method according to claim 1, which is characterized in that the year fortune
The row time is more true than the capacity transfer critical load by continuing apparent energy curve and on-load voltage regulation capacity transfer distribution transformer the load year
It is fixed.
5. on-load voltage regulation capacity transfer distribution transformer replaces judgment method according to claim 1, which is characterized in that described to have load
Pressure regulating and capacitance regulating distribution transformer replace criterion be four numerical value and value, wherein four numerical value includes：First differential loss
Coefficient, the product of the second differential loss coefficient and high load capacity mean-square value, third differential loss coefficient with year run time than product, the
The product of four differential loss coefficients and underload mean-square value and year run time ratio.
6. on-load voltage regulation capacity transfer distribution transformer replaces judgment method according to claim 5, which is characterized in that the first loss
Coefficient of variation, the second differential loss coefficient, third differential loss coefficient and the 4th differential loss coefficient become according to regular distribution
The loss of depressor and on-load voltage regulation capacity transfer distribution transformer compares and analyzes to obtain.
7. on-load voltage regulation capacity transfer distribution transformer replaces judgment method according to claim 1, which is characterized in that described to have load
Pressure regulating and capacitance regulating distribution transformer replaces judgment method：Export the judging result.
8. replacing judgment method according to any one of claim 1 to 7 on-load voltage regulation capacity transfer distribution transformer, feature exists
In the on-load voltage regulation capacity transfer distribution transformer replaces judgment method and further includes：On-load voltage regulation is replaced according to the judging result
Capacity transfer distribution transformer.
9. on-load voltage regulation capacity transfer distribution transformer replaces judgment method according to claim 8, which is characterized in that according to described
Judging result according to priority sequentially replaces on-load voltage regulation capacity transfer distribution transformer.
10. a kind of on-load voltage regulation capacity transfer distribution transformer replaces decision system, which is characterized in that appoint using in claim 1 to 9
One on-load voltage regulation capacity transfer distribution transformer is replaced judgment method and is realized.
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