CN104779627B - Real-time optimization setting method for main transformer gateway reactive interval in radiation type power grid - Google Patents
Real-time optimization setting method for main transformer gateway reactive interval in radiation type power grid Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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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
- 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]
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- 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
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- 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
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Abstract
The invention discloses a real-time optimization setting method for a main transformer gateway reactive interval in a radiation type power grid, which comprises the following steps: acquiring parameter information of the radiation type power grid from an information management system database, and establishing a radiation type power grid model; collecting real-time operation data of the radiation type power grid by using a power grid data collecting and monitoring system; calculating the optimal value Q of the reactive power at the end of the lineL(ii) a Calculating QLAbsolute value of (Q)LAnd will | QL| is divided into n parts, and the value of each part is marked as Ai(ii) a Calculation of AiAverage number B of and 0iAnd in Bion the basis of the sum and subtraction margins beta, the gateway reactive power optimization value interval [ B ] of each main transformer is formedi‑β，Bi+β](ii) a And after the time T, carrying out a new round of calculation of the gateway reactive power optimization value interval according to the steps to obtain a new gateway reactive power optimization value interval.
Description
Technical field
The present invention relates to power system reactive power operation method, is closed more specifically to main transformer in a kind of radial system
The real-time optimization setting method in mouthful idle section.
Background technology
The reactive power/voltage control of power network is related to the security and economy of operation of power networks, to ensure quality of voltage and idle
Power layering and zoning in-situ balancing, the reactive voltage of transformer station need to be controlled, to improve the reliability of transmission and distribution network and warp
Ji property.For 110kV radial system, the reactive power/voltage control of 110kV transformer stations mainly has two kinds, and one kind is to utilize
The idle work optimization that automatic voltage control system (Automatic voltage control, AVC) includes transformer station the whole network calculates
In, operation of power networks state is monitored in real time and optimizes the substation bus bar voltage and main transformer reactive power that transformer station is calculated
The control range of (or power factor)；It is another then be that transformer station utilizes the information system on the spot of itself, using relatively simple
The control strategies such as nine-zone diagram, 17 area's figures carry out reactive power/voltage control.
In above-mentioned way, the former considers the whole network operating condition, and the reactive voltage of transformer station is optimized and adjusted, and optimizes
As a result closer to actual conditions, but due to too relying in state estimation and automatization level and then making its feasibility low and control to imitate
Fruit is poor；The latter pays close attention to idle, voltage two indices, considers the fortune such as network load level while convenient for the application in engineering but shortcoming
For row operating mode to the demand of reactive power/voltage control, its control parameter is mostly based on the experience of operation, lacks clearly optimization foundation.
Therefore, in order to more preferably instruct application on Practical Project, it is necessary to one kind can to main transformer of transformer substation critical point without
The method that work(power optimization is adjusted, network load level run operating mode had both been considered to main transformer critical point wattles power economic equivalent value
Influence, again have engineering practicality so that power grid security is economically run.
The content of the invention
It is an object of the invention to：A kind of real-time optimization side of adjusting in the idle section in main transformer critical point in radial system is provided
Method, influence of the network load level run operating mode to main transformer critical point wattles power economic equivalent value was both considered, there is engineering again
Practicality so that power grid security is economically run.
To achieve these goals, the invention provides in a kind of radial system the idle section in main transformer critical point it is real-time excellent
Change setting method, comprise the following steps：
(1) parameter information of radial system is obtained from Data in Information Management System storehouse, establishes radial system model；
(2) electric network data collection and the real-time running data of monitoring system collection radial system are utilized；
(3) the optimal value Q of line end reactive power is calculatedL；It is described optimal to refer to so that radial system center line
Road active loss is minimum；
(4) Q is calculatedLAbsolute value | QL|, and will | QL| n parts are distributed into, A is designated as per a valuei；
(5) A is calculatediWith 0 average Bi, and in BiOn the basis of plus, subtract nargin β formed the critical point of each main transformer without
Work(optimization interval [Bi- β, Bi+β]；The critical point idle work optimization interval of described each main transformer refers to each main transformer pressure
The optimization span of device high-pressure side reactive power；
(6) after elapsed time T, the calculating of the critical point idle work optimization interval of a new round is carried out according to above-mentioned steps, is obtained
Critical point idle work optimization interval newly is obtained, realizes that the real-time optimization in the idle section in main transformer critical point in radial system is adjusted.Institute
The period of time T stated, i.e. power network optimize the time cycle of control, can be adjusted accordingly according to being actually needed for power network
Section.
As a modification of the present invention, the topological structure of the parameter information including radial system, transmission line of electricity
Substitutional resistance parameter RL, equivalent reactance parameter XL, equivalent susceptance parameter BL, the model of each main transformer, configuration capacity, the reality
When service data include transmission line of electricity head end working voltage UG, total burden with power P for sending under transmission line of electricityL, each main transformer high pressure
The burden with power P of sideTi, subscript i expression main transformer sequence numbers, i=1~n, n are the total number of units of main transformer in radial system.
As a modification of the present invention, the optimal value Q of described line end reactive powerL, refer to power transmission line
The size for the transmission line of electricity end reactive power that active loss minimum object function in road is tried to achieve, can be true by equation below
It is fixed,
As a modification of the present invention, | QL| distribution press and the on high-tension side burden with power P of each main transformerTiSize
It is inversely proportional and is allocated, apportioning cost AiIt can be determined by equation below,
Variable k value is according to Q in formulaLValue it is positive and negative depending on, if QLMore than or equal to 0, then variable k=0 is made；If QL
Less than 0, then variable k=1 is made.
Compared with prior art, the present invention considers the real-time operating condition of power network, carries out radial system main transformer critical point
The real-time optimization in idle section is adjusted, compensate for it is existing to the idle section in critical point by rule of thumb, the deficiency adjusted of unification；Itd is proposed
The method adjusted of the idle range optimization in radial system main transformer critical point, be not related to the idle work optimization iterative calculation of complexity, more just
In the real-time optimal control of power network.
Brief description of the drawings
With reference to the accompanying drawings and detailed description, the structure to the present invention and its advantageous effects are carried out specifically
It is bright.
Fig. 1 is the real-time optimization setting method flow chart in the idle section in main transformer critical point in radial system of the present invention.
Fig. 2 is the computation model figure of certain radial system.
Embodiment
In order that goal of the invention, technical scheme and its advantageous effects of the present invention become apparent from, below in conjunction with accompanying drawing
And embodiment, the present invention will be described in further detail.It should be appreciated that the specific reality described in this specification
Mode is applied just for the sake of explaining the present invention, is not intended to limit the present invention.
Referring to Fig. 1, the idle section real-time optimization setting method in main transformer critical point in a kind of radial system of the present invention,
Comprise the following steps：
(1) parameter information of radial system is obtained from the Data in Information Management System storehouse, including radial system is opened up
Flutter structure, the substitutional resistance parameter R of transmission line of electricityL, equivalent reactance parameter XL, equivalent susceptance parameter BL, the type of each main transformer
Number, configuration capacity, establish radial system model；
(2) electric network data collection and the real-time running data of monitoring system collection radial system, including power transmission line are utilized
Road head end working voltage UG, total burden with power P for sending under transmission line of electricityL, each on high-tension side burden with power P of main transformerTi, subscript
I represents main transformer sequence number, and i=1~n, n are the total number of units of main transformer in radial system；
(3) the optimal value Q of line end reactive power is calculatedL；It is described optimal to refer to so that radial system center line
Road active loss is minimum；
(4) Q is calculatedLAbsolute value | QL|, and will | QL| n parts are distributed into, A is designated as per a valuei；
(5) A is calculatediWith 0 average Bi, and in BiOn the basis of plus, subtract nargin β formed the critical point of each main transformer without
Work(optimization interval [Bi- β, Bi+β]；The critical point idle work optimization interval of described each main transformer refers to each main transformer pressure
The optimization span of device high-pressure side reactive power；
(6) after elapsed time T, the calculating of the critical point idle work optimization interval of a new round is carried out according to above-mentioned steps, is obtained
Critical point idle work optimization interval newly is obtained, realizes that the real-time optimization in the idle section in main transformer critical point in radial system is adjusted.
The optimal value Q of line end reactive power described in step (3) of the present inventionL, refer to active with transmission line of electricity
The size for the transmission line of electricity end reactive power that minimum object function is tried to achieve is lost, can be prepared by the following：
Consider the π types Equivalent Model of transmission line of electricity and the substitutional resistance parameter R of radial system transmission line of electricityL, equivalent electricity
Anti- parameter XL, equivalent susceptance parameter BL, head end working voltage UG, it is assumed that the end working voltage U of transmission line of electricityL, transmission line of electricity head
The power of end injection transmission line of electricity is PG+jQG, then the power attenuation Δ P of transmission line of electricityL+jΔQLAnd transmission line of electricity first, last both ends
Voltage relationship be represented by
Row then have with work(power balance equation：
PG-△PL-PL=0 (3)
Formula (1)~(2) are substituted into formula (3), can be obtained：
The reactive power value Q of line end transmission when causing radial system circuit active loss minimum to askL, Schilling formula
(4) to QGDerivation is carried out, seeks QGMinimum QGmin, then have：
OrderIt can obtain：
When the reactive power of transmission line of electricity head end injection transmission line of electricity is QGmin, the reactive power of now line end transmission
It is worth to be optimal, i.e. QL, arrange and write reactive power equilibrium equation, then have：
Formula (6) substitution formula (2), (4), (7) can be calculated to the optimal value Q of line end reactive powerLAnalytical Expression
Formula is：
The parameter information of radial system and the real-time running data gathered are substituted into formula (8) to calculate, then can obtain line
The optimal value Q of road end reactive powerLValue.
A in step (5) of the present inventioniAcquisition methods it is as follows：
Because the active loss of main transformer burden with power on high-tension side to each main transformer, load or burden without work are related, each master
The burden with power P of high voltage side of transformerTiWhen larger, to reduce main transformer active loss, should trying one's best, it is high to reduce each main transformer
The absolute magnitude for the reactive power that pressure effluent is crossed, therefore, the principle for considering its distribution is：According to PTiSize carry out inverse proportion point
Match somebody with somebody, therefore AiIt can be obtained by formula (9)：
To ensure each sendout AiSum is equal to optimal value QL, A is determined by variable k in formula (9)iValue positive negativity, and
And in formula variable k value according to QLValue it is positive and negative depending on, if QLMore than or equal to 0, then variable k=0 is made；If QLLess than 0,
Then make variable k=1.
Calculate AiWith 0 average Bi, and in BiOn the basis of plus, subtract nargin β formed each main transformer critical point it is idle excellent
Change interval [Bi- β, Bi+ β] in, described takes AiWith 0 average BiIntermediate value as critical point idle work optimization interval
It is that if only considering, circuit is optimal because in radial system, i.e. the active loss of circuit is minimum, then the pass of each main transformer
Mouth should be controlled in A without work valueiAnd if only consider the active loss of the main transformer for minimum, optimal critical point should without work value
The control is 0, and the active loss for considering main transformer and circuit is minimum, and A is taken in the present inventioniWith 0 average conduct
The intermediate value in critical point idle work optimization section.
In the present invention, by the critical point idle work optimization interval [B of each main transformer obtainedi- β, Bi+ β], it may be determined that it is each
The control range of main transformer high-pressure side reactive power, elapsed time cycle T, carry out the critical point idle work optimization value area of a new round
Between calculating, obtain new critical point idle work optimization interval, realize the real-time of the idle section in main transformer critical point in radial system
Optimization is adjusted.Described period of time T, i.e. power network optimize the time cycle of control, can according to power network be actually needed into
The corresponding regulation of row.
Illustrate the method flow of the present invention and the number of correlation by taking south electric network 110kV radial systems as an example below
According to：
(1) parameter information of radial system, including the topological structure of radial system, transmission line of electricity substitutional resistance are obtained
Parameter RL, equivalent reactance parameter XL, equivalent susceptance parameter BL, each main transformer model, configuration capacity, establish radial system mould
Type；Radial system computation model figure is as shown in Fig. 2 and transmission line of electricity equivalent parameters are RL=0.2985 Ω, XL=1.50 Ω,
BL=6.8*10^-5S、。
(2) the head end working voltage U of radial system transmission line of electricity is gathered in real timeG, send under transmission line of electricity it is total active negative
Lotus PL, each on high-tension side burden with power P of main transformerTi, subscript i expression main transformer sequence numbers, i=1~n, n are the main transformer of radial system
Number.
Three main transformers are shared in the radial system, then n=3；By the operation of the radial system of AVC system acquisitions
Parameter information is as shown in table 1：
The radial system trip information of table 1
| Variable | UG | PT | PT1 | PT2 | PT3 |
| Numerical value | 116kV | 50MW | 18MW | 24MW | 8MW |
(3) the optimal value Q of the reactive power of line end transmission is calculatedL；It is described optimal to refer to so that radial pattern is electric
The reactive power value that line end transmits during the active loss minimum of netting twine road；
Optimal value QL, can be obtained by formula (8), calculate to obtain QL=0.1772Mvar.
(4) Q is calculatedLAbsolute value | QL|, and will | QL| n parts are distributed into, A is designated as per a valuei, obtained by formula (9)
, calculate：
A1=0.0567Mvar, A2=0.0461Mvar, A3=0.0744Mvar.
(5) A is calculatediWith 0 average Bi, and in BiOn the basis of plus, subtract nargin β formed each main transformer critical point it is idle excellent
Change interval [Bi- β, Bi+β]；Nargin β values 5Mvar.
The critical point idle work optimization interval that main transformer 1 can then be obtained is [- 4.9716,5.0284] Mvar；The critical point of main transformer 2 without
Work(optimization interval is [- 4.9770,5.0230] Mvar；The critical point idle work optimization interval of main transformer 3 for [- 4.9628,
5.0372]Mvar；
(6) after elapsed time T, according to above-mentioned steps carry out new round interval value calculating, realize radial system critical point without
The real-time optimization in work(section is adjusted.To ensure real-time optimization, T can value 1 minute in this example.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out appropriate change and modification.Therefore, the invention is not limited in embodiment disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification
In used some specific terms, but these terms are merely for convenience of description, do not form any restrictions to the present invention.
Claims (2)
1. the real-time optimization setting method in the idle section in main transformer critical point in a kind of radial system, it is characterised in that including following step
Suddenly：
(1) parameter information of radial system is obtained from Data in Information Management System storehouse, establishes radial system model；
(2) electric network data collection and the real-time running data of monitoring system collection radial system are utilized；
(3) the optimal value Q of line end reactive power is calculatedL, it is described optimal to refer to so that circuit is active in radial system
It is lost as minimum；
(4) Q is calculatedLAbsolute value | QL|, and will | QL| n parts are distributed into, A is designated as per a valuei；
(5) A is calculatediWith 0 average Bi, and in BiOn the basis of plus, subtract nargin β formed each main transformer critical point it is idle excellent
Change interval [Bi- β, Bi+β]；The critical point idle work optimization interval of described each main transformer refers to that each main transformer is high
Press the optimization span of side reactive power；
(6) after elapsed time T, the calculating of the critical point idle work optimization interval of a new round is carried out according to above-mentioned steps, is obtained new
Critical point idle work optimization interval, realize that the real-time optimization in the idle section in main transformer critical point in radial system is adjusted；
The parameter information includes topological structure, the substitutional resistance parameter R of transmission line of electricity of radial systemL, equivalent reactance parameter
XL, equivalent susceptance parameter BL, the model of each main transformer, configuration capacity, the real-time running data includes transmission line of electricity head end fortune
Row voltage UG, total burden with power P for sending under transmission line of electricityL, each on high-tension side burden with power P of main transformerTi, subscript i expression masters
Transformer sequence number, i=1~n, n are the total number of units of main transformer in radial system；
|QL| distribution press and the on high-tension side burden with power P of each main transformerTiSize be inversely proportional and be allocated, apportioning cost AiIt is logical
Equation below determination is crossed,
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0, then make variable k=1.
2. the real-time optimization setting method in the idle section in main transformer critical point in radial system according to claim 1, it is special
Sign is, the optimal value Q of described line end reactive powerL, refer to the minimum target letter of transmission line of electricity active loss
The size of several tried to achieve transmission line of electricity end reactive powers, is determined by equation below,
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709918A (en) * | 2012-05-21 | 2012-10-03 | 广东省电力调度中心 | Reactive power control method of grid gateway based on automatic volume control (AVC) system |
| CN103633654A (en) * | 2013-11-14 | 2014-03-12 | 华南理工大学 | Near-optimal relaxation reactive power control method for radiation type power grid |
| CN104078983A (en) * | 2014-06-16 | 2014-10-01 | 沈阳工业大学 | Reactive distribution optimizing method for reducing active loss of wind power farm |
| CN104362623A (en) * | 2014-11-10 | 2015-02-18 | 国家电网公司 | Multi-target network reestablishing method for active power distribution network |
-
2015
- 2015-03-25 CN CN201510136992.5A patent/CN104779627B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709918A (en) * | 2012-05-21 | 2012-10-03 | 广东省电力调度中心 | Reactive power control method of grid gateway based on automatic volume control (AVC) system |
| CN103633654A (en) * | 2013-11-14 | 2014-03-12 | 华南理工大学 | Near-optimal relaxation reactive power control method for radiation type power grid |
| CN104078983A (en) * | 2014-06-16 | 2014-10-01 | 沈阳工业大学 | Reactive distribution optimizing method for reducing active loss of wind power farm |
| CN104362623A (en) * | 2014-11-10 | 2015-02-18 | 国家电网公司 | Multi-target network reestablishing method for active power distribution network |
Non-Patent Citations (1)
| Title |
|---|
| 配网无功补偿分析;李鹏;《电子科学》;20091231;第24至26页 * |
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