CN109193689A - Voltage power-less regulates and controls Time segments division method and device - Google Patents
Voltage power-less regulates and controls Time segments division method and device Download PDFInfo
- Publication number
- CN109193689A CN109193689A CN201811105336.9A CN201811105336A CN109193689A CN 109193689 A CN109193689 A CN 109193689A CN 201811105336 A CN201811105336 A CN 201811105336A CN 109193689 A CN109193689 A CN 109193689A
- Authority
- CN
- China
- Prior art keywords
- order difference
- period
- time segments
- difference vector
- voltage power
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000006870 function Effects 0.000 claims description 25
- 238000004364 calculation method Methods 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 8
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/50—Controlling the sharing of the out-of-phase component
-
- 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]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of voltage power-less to regulate and control Time segments division method and device, method detailed process is, first obtain substation's daily load data, then L1 Regularization Technique is utilized, it the use of 1 norm of total variance is that regular conditions carry out join linearization to daily load data, then above-mentioned objective function is solved, calculate its first-order difference, and then obtain first-order difference vector, finally according to element value two neighboring in first-order difference vector, judge whether corresponding two periods belong to the same period, to complete the division of period.The method of the present invention calculating process is simple, can precisely realize the division of period.
Description
Technical field
The present invention relates to a kind of voltage power-less to regulate and control Time segments division method and device, is suitable for power regulation system, belongs to
Operation and control of electric power system technical field.
Background technique
Voltage power-less regulation by years of researches reached its maturity and be widely used in actual electric network control and achieve compared with
Good effect.However as power grid scale it is continuous expand and load variations it is increasingly complicated, often can in voltage power-less regulation
Occur leading to optimize the undesirable phenomenon of operational effect since parameter setting is unreasonable, tracing it to its cause mainly, operations staff is very
Hardly possible accurately holds the reasonable setting of parameter, such as the action frequency of load tap changer and compensation equipment, and realizes this kind of parameter
The crucial step of be rationally arranged be the automatic division how realized to control time.
Method of the current method mostly based on artificial intelligence such as cluster, merging, can not catch load variations principal contradiction,
It contributes mostly for the rule of similarity of part, and complicated for operation, dependent Rule is more, is difficult to actual field.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of voltage power-less to regulate and control Time segments division method
And device, realize Time segments division, calculating process is simple.
In order to solve the above technical problems, the present invention provides a kind of voltage power-less to regulate and control Time segments division method, characterized in that
Including following procedure:
Obtain substation's daily load data { p (ti), wherein p (ti) it is tiThe load value of moment substation, i=1,2...,
N, N are daily load sampling number；
According to the daily load data { p (ti) pre-set objective function is solved, obtain trend term sequence S=
[s1,s2,...,sN]T；siFor ti~ti+1Corresponding trend term in period, the objective function is with load fluctuation sequence square
It is target with minimum and trend term second order difference 1 Norm minimum；
The first-order difference of sequence of calculation S obtains first-order difference vector Δ d=[d1,d2,...,dN-1]T；
According to two neighboring element value in first-order difference vector Δ d, to judge it is same whether corresponding two periods belong to
A period, to complete the division of period.
Preferably, the objective function is as follows:
Wherein, λ is regularisation parameter, D ∈ RN×NIt is a second order difference matrix.
Preferably, described that pre-set objective function is solved, comprising: target letter is solved by former dual interior point
Number.
Preferably, the calculation formula of element is d in the first-order difference vector Δ di=si+1-si, diRepresent ti+1~ti+2
To ti~ti+1The variable quantity of trend in two periods.
Preferably, described according to two neighboring element value in first-order difference vector Δ d, to judge that corresponding two periods are
It is no to belong to the same period, to complete the division of period, comprising:
For two element d of arbitrary neighborhood in first-order difference vector Δ dk,dk+1, k=1,2..., N-2；
If two adjacent element values meet simultaneouslyWherein β-<0,β+> 0, then determine tk~tk+1With tk+1
~tk+2It is not belonging to the same period, the trend in two periods is respectively skAnd sk+1；Otherwise tk~tk+1With tk+1~tk+2It divides
To the same period, the trend term in the period is
Above procedure is repeated until having judged all elements in first-order difference vector.
Correspondingly, the present invention also provides a kind of voltage power-less to regulate and control Time segments division device, characterized in that include:
Daily load data acquisition module, for obtaining substation daily load data { p (ti), wherein p (ti) it is tiMoment becomes
The load value in power station, i=1,2..., N, N are daily load sampling number；
Trend term sequence computing module, according to the daily load data { p (ti) pre-set objective function is solved,
Obtain trend term sequence S=[s1,s2,...,sN]T；siFor ti~ti+1Corresponding trend term in period, the objective function with
1 Norm minimum of load fluctuation sequence quadratic sum minimum and trend term second order difference is target；
Difference vector computing module obtains first-order difference vector Δ d=[d for the first-order difference of sequence of calculation S1,
d2,...,dN-1]T；
Time segments division module is used for according to element value two neighboring in first-order difference vector, to judge corresponding two times
Whether section belongs to the same period, to complete the division of period.
Preferably, in trend term sequence computing module, the objective function is as follows:
Wherein, λ is regularisation parameter, D ∈ RN×NIt is a second order difference matrix.
Preferably, in difference vector computing module, the calculation formula of element is d in the first-order difference vector Δ di=
si+1-si, diRepresent ti+1~ti+2To ti~ti+1The variable quantity of trend in two periods.
Preferably, described according to two neighboring element value in first-order difference vector Δ d in Time segments division module, to judge
Whether corresponding two periods belong to the same period, to complete the division of period, comprising:
For two element d of arbitrary neighborhood in first-order difference vector Δ dk,dk+1, k=1,2..., N-2；
If two adjacent element values meet simultaneouslyWherein β-<0,β+> 0, then determine tk~tk+1With tk+1
~tk+2It is not belonging to the same period, the trend in two periods is respectively skAnd sk+1；Otherwise tk~tk+1With tk+1~tk+2It divides
To the same period, the trend term in the period is
Above procedure is repeated until having judged all elements in first-order difference vector.
Correspondingly, the present invention also provides a kind of computer readable storage medium for storing one or more programs, it is special
Sign is, one or more of programs include instruction, described instruction when executed by a computing apparatus so that the calculating equipment is held
The above-mentioned voltage power-less of row regulates and controls Time segments division method.
Compared with prior art, the beneficial effects obtained by the present invention are as follows being:
1) it is small to calculate cost；
2) it is suitable for piecewise linear trend；
3) the regularization effect of 1 norm can generate full variation denoising effect, make many coefficients of the second order difference of trend term
Zero, the peak valley point of prominent load.
Detailed description of the invention
Fig. 1 is 288 point load curves of substation of the embodiment of the present invention day；
Fig. 2 is the substation's Time segments division result determined in Fig. 1 embodiment using the method for the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
It is exactly to determine that load is presented in different periods that control time, which divides in itself, in problem that power system voltage is idle
Different trend.It needs to be determined that part include two o'clock, one is period cut-point (inflection point, trend starting point), and one when being
The situation (variable quantity) of trend in section.
That is, control time divides there are two the main problems to be solved in voltage power-less regulation:
1) is period cut-point at which? it is load peak valley inflection point to be determined, from the time to determine number of equipment action
Initial point.
Does is 2) what the load trend in different periods? it is the speed that load to be determined changes within some period,
To determine number of equipment action in the period.
Once the trend of load has determined, so that it may explicitly provide period cut-point.However to idle control time and
Speech, there are the fluctuations of size for load, and there are various errors for acquisition and transmission, can not preferably reflect trend.It mathematically says, institute
" trend " of meaning mathematically corresponds to smooth item, can be approached with quadratic form, and at inflection point, the situation of change of two sides second order difference is complete
It is complete different, it can preferably be described with 1 norm.
By taking a sequence x=[1 358 10 75 3] as an example:
First-order difference is dx=[2 23 2-3-2-2], and second order difference is dx=[0 1-1-5-1 0]；
As it can be seen that the corresponding second difference subitem of inflection point is -5 after second order difference, the more remaining second difference subitem of absolute value
Greatly, comparison is it is believed that remaining second difference subitem is 0, that is to say, that strong sparsity is presented in second difference subitem, meets the object of 1 norm
Manage meaning.
The load of electric system is usually made of two parts, and a part is fluctuation item, and another part is trend term, the present invention
1 norm of the second order difference of load trend item is regularization target by the principal contradiction for catching voltage power-less, can adaptively be fitted
The local horizontal for answering smoothness extracts load peak valley feature from Load Time Series, and can more accurately portray period segmentation
The situation of point and the trend in the period, provides theoretical foundation from the setting for voltage & var control parameter.
The L1 regularization method of voltage power-less regulation Time segments division of the invention, specifically includes following implemented process:
Step S1 obtains substation's daily load data { p (ti), wherein p (ti) it is tiThe load value of moment substation, i=
1,2..., N, N are daily load sampling number.
For example, the sampling period is 5 minutes, then daily load sampled point N is 288, and 288 point load curves of certain substation day are as schemed
Shown in 1, abscissa represents sampling instant in figure, and ordinate represents the corresponding load value of sampling instant, pays attention to sampled point in this figure
Signal be it is discrete, curve looks like continuously, that is inserted automatically when because sampling density is big and software is drawn
Value is smooth.
Step S2 establishes following objective function:
Here siFor ti~ti+1Corresponding trend term in period, S=[s1,s2,...,sN]T, λ is regularisation parameter, control
The weight of objective function and regular terms, D ∈ R are madeN×NIt is a second order difference matrix, form is as follows:
It the use of 1 norm of total variance is that regular conditions linearize burden with power sequence using L1 Regularization Technique
Fitting, it is therefore an objective to acquire a sequence si, the sequence on the one hand be ensured of volatility series quadratic sum minimum i.e.
Its significance lies in that substation's load variations very little, this is consistent with the meaning of Time segments division within the same segmentation period；It is another
Part be trend term second order difference 1 Norm minimum, i.e. λ | | D*S | |1, the meaning of 1 norm regularization is to make the variation of trend term
Amount tends to sparse features, it is intended that
In the same period, continuous three points sk-1,sk,sk+1Meet:
Wherein k=2..., N-1, δ is the threshold value of a very little here, in fact, in the electric system identical period, load
Variation tendency variation is similar, either load minor swing or slowly varying, skIt can be by sk-1And sk+1It is average, it is above-mentioned
The physical significance of condition is very specific；
Between the different periods, continuous three points sk-1,sk,sk+1Meet:
In electric system different periods, load variations trend is entirely different, especially at left and right sides of period cut-point, sk
With sk-1And sk+1Mean difference it is very big.
The advantage of the model is:
1) it is small to calculate cost；
2) it is suitable for piecewise linear trend, but siIt is not p (ti) linear function；
3) the regularization effect of 1 norm can generate full variation denoising effect, make many coefficients of the second order difference of trend term
Zero, the peak valley point of prominent load.
Step S3 solves above-mentioned objective function by former dual interior point, obtains S=[s1,s2,...,sN]T。
Former dual interior point belongs to the prior art, and solving speed is fast, high-efficient.This detailed calculating process refers to existing
There is technology, seldom repeats herein.
Step S4 calculates S=[s1,s2,...,sN]TFirst-order difference, i.e. di=si+1-si, and then obtain first-order difference to
Measure Δ d=[d1,d2,...,dN-1]T, the physical significance of the difference vector is the variable quantity of trend in two periods.
Step S5, to two element d in first-order difference vector Δ dk,dk+1, k=1,2..., N-2；
If two adjacent element values meet simultaneouslyWherein β-<0,β+> 0, this two variables are settings
Value, can empirically determine, illustrate sk+1<sk,sk+2>sk+1, i.e. tk~tk+1With tk+1~tk+2Trend is opposite in two periods
, then then tk~tk+1With tk+1~tk+2It is not belonging to the same period, the trend in two periods is respectively skAnd sk+1；Otherwise
tk~tk+1With tk+1~tk+2It is divided to the same period, the trend term in the period is
Above procedure is repeated until having judged all elements in first-order difference vector, the division of period is completed with this.
Fig. 2 is that the load curve shown in Fig. 1 utilizes L1 regularization Time segments division result, it is seen then that a total of 4 periods point
Cutpoint, period are made of 5 parts.
Based on the same inventive concept, the present invention also provides a kind of voltage power-less to regulate and control Time segments division device, comprising:
Daily load data acquisition module, for obtaining substation daily load data { p (ti), wherein p (ti) it is tiMoment becomes
The load value in power station, i=1,2..., N, N are daily load sampling number；
Objective function establishes module, remembers siFor ti~ti+1Corresponding trend term in period, establish with all load values with
The quadratic sum minimum of trend term difference and 1 Norm minimum of trend term second order difference are the objective function of target；
Trend term sequence computing module obtains trend term sequence S=[s for solving above-mentioned objective function1,s2,...,
sN]T；
Difference vector computing module obtains first-order difference vector for the first-order difference of sequence of calculation S；
Time segments division module is used for according to element value two neighboring in first-order difference vector, to judge corresponding two times
Whether section belongs to the same period, to complete the division of period.
Preferably, objective function is established in module, and it is as follows to establish objective function:
Wherein, λ is regularisation parameter, D ∈ RN×NIt is a second order difference matrix.
Preferably, in difference vector computing module, element calculation formula is d in first-order difference vector Δ di=si+1-si, di
Represent ti+1~ti+2To ti~ti+1The variable quantity of trend in two periods.
Preferably, in Time segments division module, the detailed process of Time segments division are as follows: for any in first-order difference vector Δ d
Two neighboring element dk,dk+1, k=1,2..., N-2；
If two adjacent element values meet simultaneouslyWherein β-<0,β+> 0, then determine tk~tk+1With tk+1
~tk+2It is not belonging to the same period, the trend in two periods is respectively skAnd sk+1；Otherwise tk~tk+1With tk+1~tk+2It divides
To the same period, the trend term in the period is
Above procedure is repeated until having judged all elements in first-order difference vector.
Based on the same inventive concept, the present invention also provides a kind of computer-readable storages for storing one or more programs
Medium, one or more of programs include instruction, described instruction when executed by a computing apparatus so that the calculating equipment is held
The above-mentioned voltage power-less of row regulates and controls Time segments division method.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. voltage power-less regulates and controls Time segments division method, characterized in that the following steps are included:
Obtain substation's daily load data { p (ti), wherein p (ti) it is tiThe load value of moment substation, i=1,2..., N, N
For daily load sampling number；
According to the daily load data { p (ti) pre-set objective function is solved, obtain trend term sequence S=[s1,
s2,...,sN]T；siFor ti~ti+1Corresponding trend term in period, the objective function with load fluctuation sequence quadratic sum most
Small and trend term second order difference 1 Norm minimum is target；
The first-order difference of sequence of calculation S obtains first-order difference vector Δ d=[d1,d2,...,dN-1]T；
According to two neighboring element value in first-order difference vector Δ d, come when judging whether corresponding two periods belong to same
Section, to complete the division of period.
2. voltage power-less according to claim 1 regulates and controls Time segments division method, characterized in that the objective function is as follows:
Wherein, λ is regularisation parameter, D ∈ RN×NIt is a second order difference matrix.
3. voltage power-less according to claim 1 regulates and controls Time segments division method, characterized in that described to pre-set mesh
Scalar functions solve, comprising:
Objective function is solved by former dual interior point.
4. voltage power-less according to claim 1 regulates and controls Time segments division method, characterized in that the first-order difference vector Δ
The calculation formula of element is d in di=si+1-si, diRepresent ti+1~ti+2To ti~ti+1The variable quantity of trend in two periods.
5. voltage power-less according to claim 1 regulates and controls Time segments division method, characterized in that it is described according to first-order difference to
Two neighboring element value in Δ d is measured, to judge whether corresponding two periods belong to the same period, to complete drawing for period
Point, comprising:
For two element d of arbitrary neighborhood in first-order difference vector Δ dk,dk+1, k=1,2..., N-2；
If two adjacent element values meet simultaneouslyWherein β-<0,β+> 0, then determine tk~tk+1With tk+1~tk+2
It is not belonging to the same period, the trend in two periods is respectively skAnd sk+1；Otherwise tk~tk+1With tk+1~tk+2It is divided to same
A period, the trend term in the period are
Above procedure is repeated until having judged all elements in first-order difference vector.
6. voltage power-less regulates and controls Time segments division device, characterized in that include:
Daily load data acquisition module, for obtaining substation daily load data { p (ti), wherein p (ti) it is tiMoment substation
Load value, i=1,2..., N, N be daily load sampling number；
Trend term sequence computing module, according to the daily load data { p (ti) pre-set objective function is solved, it obtains
Trend term sequence S=[s1,s2,...,sN]T；siFor ti~ti+1Corresponding trend term in period, the objective function is with load
1 Norm minimum of volatility series quadratic sum minimum and trend term second order difference is target；
Difference vector computing module obtains first-order difference vector Δ d=[d for the first-order difference of sequence of calculation S1,d2,...,
dN-1]T；
Time segments division module, for being to judge to correspond to two periods according to element value two neighboring in first-order difference vector
It is no to belong to the same period, to complete the division of period.
7. voltage power-less according to claim 6 regulates and controls Time segments division device, characterized in that trend term sequence computing module
In, the objective function is as follows:
Wherein, λ is regularisation parameter, D ∈ RN×NIt is a second order difference matrix.
8. voltage power-less according to claim 6 regulates and controls Time segments division device, characterized in that difference vector computing module
In, the calculation formula of element is d in the first-order difference vector Δ di=si+1-si, diRepresent ti+1~ti+2To ti~ti+1Two
The variable quantity of trend in period.
9. voltage power-less according to claim 6 regulates and controls Time segments division device, characterized in that in Time segments division module, institute
It states according to two neighboring element value in first-order difference vector Δ d, to judge whether corresponding two periods belong to the same period,
To complete the division of period, comprising:
For two element d of arbitrary neighborhood in first-order difference vector Δ dk,dk+1, k=1,2..., N-2；
If two adjacent element values meet simultaneouslyWherein β-<0,β+> 0, then determine tk~tk+1With tk+1~tk+2
It is not belonging to the same period, the trend in two periods is respectively skAnd sk+1；Otherwise tk~tk+1With tk+1~tk+2It is divided to same
A period, the trend term in the period are
Above procedure is repeated until having judged all elements in first-order difference vector.
10. a kind of computer readable storage medium for storing one or more programs, characterized in that one or more of programs
Including instruction, described instruction when executed by a computing apparatus so that the calculatings equipment execution it is any to 5 according to claim 1
Method described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811105336.9A CN109193689B (en) | 2018-09-21 | 2018-09-21 | Voltage reactive power regulation time interval dividing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811105336.9A CN109193689B (en) | 2018-09-21 | 2018-09-21 | Voltage reactive power regulation time interval dividing method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109193689A true CN109193689A (en) | 2019-01-11 |
| CN109193689B CN109193689B (en) | 2021-09-03 |
Family
ID=64909138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811105336.9A Active CN109193689B (en) | 2018-09-21 | 2018-09-21 | Voltage reactive power regulation time interval dividing method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109193689B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111586127A (en) * | 2020-04-28 | 2020-08-25 | 深圳市爱路恩济能源技术有限公司 | Working condition data processing method based on Internet of things system |
| CN114066205B (en) * | 2021-11-11 | 2024-03-22 | 四川启睿克科技有限公司 | Time-sharing data processing method and system based on Internet of things equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709923A (en) * | 2012-06-14 | 2012-10-03 | 济南大学 | Time-varying value-limiting reactive power optimization control method of district power grid on basis of load fluctuation rule |
| CN106355287A (en) * | 2016-09-13 | 2017-01-25 | 国网福建省电力有限公司 | Method for extracting yearly comprehensive peak and off-peak electricity prices based on load adjustability |
| JP2017099091A (en) * | 2015-11-20 | 2017-06-01 | 株式会社日立製作所 | Voltage/reactive power control apparatus and method, and voltage/reactive power control system |
| CN107302222A (en) * | 2017-07-25 | 2017-10-27 | 南京工程学院 | A kind of idle work optimization number of equipment action analysis method based on rough set |
-
2018
- 2018-09-21 CN CN201811105336.9A patent/CN109193689B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709923A (en) * | 2012-06-14 | 2012-10-03 | 济南大学 | Time-varying value-limiting reactive power optimization control method of district power grid on basis of load fluctuation rule |
| JP2017099091A (en) * | 2015-11-20 | 2017-06-01 | 株式会社日立製作所 | Voltage/reactive power control apparatus and method, and voltage/reactive power control system |
| CN106355287A (en) * | 2016-09-13 | 2017-01-25 | 国网福建省电力有限公司 | Method for extracting yearly comprehensive peak and off-peak electricity prices based on load adjustability |
| CN107302222A (en) * | 2017-07-25 | 2017-10-27 | 南京工程学院 | A kind of idle work optimization number of equipment action analysis method based on rough set |
Non-Patent Citations (1)
| Title |
|---|
| 徐兰兰 等: "考虑负荷不确定性和时段优化的动态无功优化", 《科学技术与工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111586127A (en) * | 2020-04-28 | 2020-08-25 | 深圳市爱路恩济能源技术有限公司 | Working condition data processing method based on Internet of things system |
| CN111586127B (en) * | 2020-04-28 | 2023-04-28 | 深圳市爱路恩济能源技术有限公司 | Working condition data processing method based on Internet of things system |
| CN114066205B (en) * | 2021-11-11 | 2024-03-22 | 四川启睿克科技有限公司 | Time-sharing data processing method and system based on Internet of things equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109193689B (en) | 2021-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106462905B (en) | System, method and apparatus for identifying load volatility of power customers and tangible computer readable medium | |
| CN110231528A (en) | Transformer family based on load characteristic model library becomes anomalous identification method and device | |
| CN109193689A (en) | Voltage power-less regulates and controls Time segments division method and device | |
| CN110504716B (en) | Photovoltaic inverter reactive mode optimization selection method, terminal equipment and storage medium | |
| CN104701858A (en) | Reactive voltage control method considering dynamic reactive power reserves of partitions | |
| CN108764547A (en) | A kind of Mid-long Term Load curve generation method meeting Constraint | |
| Yu et al. | Stochastic optimal CPS relaxed control methodology for interconnected power systems using Q-learning method | |
| CN110994589B (en) | Online evaluation method and system for frequency modulation capability of power electronic access power system | |
| Weng et al. | Fixed-point theorem-based voltage stability margin estimation techniques for distribution systems with renewables | |
| CN104810834B (en) | Many section 500kV electric network reactive compensations switching strategy optimization methods based on voltage sensibility | |
| Luo et al. | Research on transmission and transformation engineering cost system based on BIM 3D modelling technology | |
| CN111864728B (en) | Important equipment identification method and system for reconfigurable power distribution network | |
| CN113572191B (en) | Distributed camera setting configuration method and system for large-scale new energy direct current delivery system | |
| CN110851943B (en) | Modeling method and device for battery charging performance | |
| CN111859585B (en) | Transmission and distribution cooperative equipment bearing capacity calculation method and system | |
| CN114938003A (en) | Distribution network reactive compensation control method, device, equipment and storage medium | |
| Zhang et al. | Research on intelligent load forecast in power system dispatching automation | |
| CN111796143A (en) | Energy-saving metering method for energy-saving equipment of power distribution and utilization system | |
| CN113972659B (en) | Energy storage configuration method and system considering random power flow | |
| Ke et al. | Short-term wind power dynamic prediction based on GA-BP neural network | |
| Wang et al. | Research on Prediction of Dynamic Load Complementarity Based on Big Data | |
| CN115940202A (en) | Multi-inverter power distribution control method, device and equipment based on artificial intelligence | |
| CN111697575B (en) | Flexibility-improved quantitative analysis method, device and system | |
| CN109193688B (en) | Method and device for setting daily action times of discrete reactive equipment of single transformer substation | |
| CN112132701B (en) | Openable capacity calculation method based on one power grid diagram |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |