CN104809582B - A kind of power distribution network coordinated planning method for considering load transfering channel - Google Patents
A kind of power distribution network coordinated planning method for considering load transfering channel Download PDFInfo
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Abstract
A kind of power distribution network coordinated planning method for considering load transfering channel.It includes determining that money is received in region, investigation:Planning region is determined, and collects power distribution network present situation data in planning region;The power distribution network mode of connection is analyzed;Distribution network load transfering channel is analyzed;Typical powering mode Adaptability Analysis;Power distribution network Coordination Analysis;Judge whether power supply capacity reaches the steps such as maximum.Effect of the present invention:This method coordinates each voltage class of power distribution network and considers load transfering channel, it is proposed the typical powering mode for being adapted to regional distribution network, be advantageous to improve the science and specific aim of planning, power grid security confidence level is improved, delays electric grid investment, improve grid equipment utilization ratio, therefore this method more science, comprehensively.This method carries out power distribution network investment for distribution network planning personnel and provides beneficial reference, and strong technical support is provided for the work of distribution network planning in the future.This method is easy to grasp and operation.
Description
Technical field
The invention belongs to distribution network planning technology field, more particularly to a kind of distribution for considering load transfering channel
Net coordinated planning method.
Background technology
As power network scale is increasingly huge, grid structure is increasingly sophisticated, the path that can carry out load transfer is more.Typically
The load transfer scheme obtained by rule of thumb is feasible program but is not necessarily optimal case, and increasing with optional program,
The work of technology and economy comparison is carried out to scheme to be become very large, so establishing corresponding load metastasis model and optimizing
Decision-making, can avoid failure further expands and reduces load loss, helps to formulate rational maintenance solution.
In the research in terms of the existing transfer Optimal Decision-making of load both at home and abroad, the main target of optimization, which has, at utmost to be shifted
Load, minimal switches number of operations and minimum network loss.But these researchs mainly supply from the economy of load transfer and user
Optimized in terms of electric reliability, and be inconvenient to operate in the real work of Electric Power Network Planning.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of power distribution network coordination for considering load transfering channel
Planing method.
In order to achieve the above object, the power distribution network coordinated planning method provided by the invention for considering load transfering channel includes
The following steps performed in order:
Step 1) determines that money is received in region, investigation:Planning region is determined, and collects power distribution network present situation data in planning region;
Step 2) the power distribution network mode of connection is analyzed:Using the mode of connection of above-mentioned three levels of analysis power distribution network, obtain
To the detail and statistical form of three every kind of modes of connection of level;
Step 3) distribution network load transfering channel is analyzed:With reference to mode of connection analysis result in step 2), with 110kV and
35kV transformers are analysis object, find 110kV or 35kV supply lines and the 10kV outlets of every transformer, formed from
110kV to 10kV equipment topological relation, through setting for 110kV circuits or 35kV -110kV or 35kV main transformer -10kV outlets
Standby topological relation is exactly the load transfering channel of whole power distribution network, and pooled classification regional distribution network load transfering channel shows afterwards
Shape, find out the most several load transfering channels of quantity;
The typical powering mode Adaptability Analysis of step 4):With reference to step 2) and the analysis result of step 3), quantity is refined most
Three layers of electric power-feeding structure of more several load transfering channels, by the typical wiring mode respective combination of three layers of electric power-feeding structure, and
Consider that the boundary condition including regional location, load density, user's significance level forms several typical powering modes;
Step 5) power distribution network Coordination Analysis:The power supply capacity of above-mentioned typical powering mode, analysis are calculated using computer
Whether typical powering mode has enough load transfering channels, if meet safe and reliable power demands, power supply capacity maximum
Typical powering mode is optimal, so as to realize the cooperation between each voltage class of power distribution network, this powering mode
As preferred powering mode;
Step 6) judges whether power supply capacity reaches maximum:Planning personnel judges above-mentioned preferred powering mode by computer
Power supply capacity whether reach maximum, if it is judged that be "Yes", it is optimal to illustrate that current preferred powering mode is as powered
Pattern, this flow so far terminate;Otherwise step 5) is reentered in next step to continue to analyze and determine new preferred powering mode.
In step 2), the specific method of described power distribution network mode of connection analysis is:
Present situation power distribution network mode of connection data is collected, and analyzes wiring side's pattern of three levels of power distribution network respectively:First
The mode of connection of 110kV and 35kV circuits is analyzed, is generally divided into double chain framework, single-chain type structure, biradial structure, single radiation
Four kinds of structures of structure;Then analyze 110kV the and 35kV transformer stations high and low pressure side mode of connection, high-pressure side be generally divided into single busbar,
Line change group, Nei Qiao, outer bridge, sectionalized single busbar connection various structures, low-pressure side are generally single-trunk segmental wiring;Ultimate analysis 10kV lines
The mode of connection on road, it is generally divided into aerial radiation wiring, aerial simply connected network wiring, aerial more segmentation appropriateness contact wiring, cable
Single-ring network, cable dual-ring network, cable twinshot, cable injection formula.
The implementation result of the power distribution network coordinated planning method provided by the invention for considering load transfering channel:
(1) this method coordination each voltage class of power distribution network considers load transfering channel, proposes to be adapted to regional distribution network
Typical powering mode, be advantageous to improve the science and specific aim of planning, improve power grid security confidence level, delay power network to throw
Money, improve grid equipment utilization ratio, therefore this method more science, comprehensively.
(2) this method carries out power distribution network investment for distribution network planning personnel and provides beneficial reference, for distribution network planning in the future
Draw work and provide strong technical support.
(3) this method be easy to grasp and operation, no matter from the power distribution network mode of connection analysis or load transfering channel present situation
Analysis etc., is easily understood, facilitates practical operation personnel skillfully to grasp.
Brief description of the drawings
Fig. 1 is the power distribution network coordinated planning method flow diagram of consideration load transfering channel provided by the invention.
Embodiment
Rule are coordinated to the power distribution network of consideration load transfering channel provided by the invention with specific embodiment below in conjunction with the accompanying drawings
The method of drawing is described in detail.
As shown in figure 1, the power distribution network coordinated planning method provided by the invention for considering load transfering channel is included in order
The following steps of execution:
Step 1) determines that money is received in region, investigation:Planning region is determined, and collects power distribution network present situation data in planning region;
Step 2) the power distribution network mode of connection is analyzed:Using the mode of connection of above-mentioned three levels of analysis power distribution network, obtain
To the detail and statistical form of three every kind of modes of connection of level;
Step 3) distribution network load transfering channel is analyzed:With reference to mode of connection analysis result in step 2), with 110kV and
35kV transformers are analysis object, find 110kV or 35kV supply lines and the 10kV outlets of every transformer, formed from
110kV to 10kV equipment topological relation, through setting for 110kV circuits or 35kV -110kV or 35kV main transformer -10kV outlets
Standby topological relation is exactly the load transfering channel of whole power distribution network, and pooled classification regional distribution network load transfering channel shows afterwards
Shape, find out the most several load transfering channels of quantity;
The typical powering mode Adaptability Analysis of step 4):With reference to step 2) and the analysis result of step 3), quantity is refined most
Three layers of electric power-feeding structure of more several load transfering channels, by the typical wiring mode respective combination of three layers of electric power-feeding structure, and
Consider that the boundary condition including regional location, load density, user's significance level forms several typical powering modes;
Step 5) power distribution network Coordination Analysis:The power supply capacity of above-mentioned typical powering mode, analysis are calculated using computer
Whether typical powering mode has enough load transfering channels, if meet safe and reliable power demands, power supply capacity maximum
Typical powering mode is optimal, so as to realize the cooperation between each voltage class of power distribution network, this powering mode
As preferred powering mode;
Step 6) judges whether power supply capacity reaches maximum:Planning personnel judges above-mentioned preferred powering mode by computer
Power supply capacity whether reach maximum, if it is judged that be "Yes", it is optimal to illustrate that current preferred powering mode is as powered
Pattern, this flow so far terminate;Otherwise step 5) is reentered in next step to continue to analyze and determine new preferred powering mode.
In step 2), the specific method of described power distribution network mode of connection analysis is:
Present situation power distribution network mode of connection data is collected, and analyzes wiring side's pattern of three levels of power distribution network respectively:First
The mode of connection of 110kV and 35kV circuits is analyzed, is generally divided into double chain framework, single-chain type structure, biradial structure, single radiation
Four kinds of structures of structure;Then analyze 110kV the and 35kV transformer stations high and low pressure side mode of connection, high-pressure side be generally divided into single busbar,
Line change group, Nei Qiao, outer bridge, sectionalized single busbar connection various structures, low-pressure side are generally single-trunk segmental wiring;Ultimate analysis 10kV lines
The mode of connection on road, it is generally divided into aerial radiation wiring, aerial simply connected network wiring, aerial more segmentation appropriateness contact wiring, cable
Single-ring network, cable dual-ring network, cable twinshot, cable injection formula.
The power distribution network coordinated planning method provided by the invention for considering load transfering channel is one kind with grid collapses
When load realized between each voltage class load maximize transfer for target power distribution network coordinated planning method.This method passes through
Load transfer process when studying power distribution network difference voltage class present situation load transfering channel and electric network fault, formed and be adapted to region to match somebody with somebody
The typical powering mode of power network, contributes to distribution network planning personnel to plan power distribution network in phase from different voltage class, so as to carry
High power grid security confidence level, delay electric grid investment, improve grid equipment utilization ratio.
Claims (2)
- A kind of 1. power distribution network coordinated planning method for considering load transfering channel, it is characterised in that:Described consideration load transfer The power distribution network coordinated planning method of passage includes the following steps performed in order:Step 1) determines that money is received in region, investigation:Planning region is determined, and collects power distribution network present situation data in planning region;Step 2) the power distribution network mode of connection is analyzed:Using the mode of connection of above-mentioned three levels of analysis power distribution network, three are obtained The detail and statistical form of the individual every kind of mode of connection of level;Step 3) distribution network load transfering channel is analyzed:With reference to mode of connection analysis result in step 2), become with 110kV and 35kV Depressor is analysis object, finds 110kV or 35kV supply lines and the 10kV outlets of every transformer, formed from 110kV to 10kV equipment topological relation, closed through 110kV circuits or the equipment of 35kV -110kV or 35kV main transformer -10kV outlets topology System is exactly the present situation of the load transfering channel, afterwards pooled classification regional distribution network load transfering channel of whole power distribution network, is found out The most several load transfering channels of quantity;The typical powering mode Adaptability Analysis of step 4):With reference to step 2) and the analysis result of step 3), it is most to refine quantity Three layers of electric power-feeding structure of several load transfering channels, by the typical wiring mode respective combination of three layers of electric power-feeding structure, and consider Boundary condition including regional location, load density, user's significance level forms several typical powering modes;Step 5) power distribution network Coordination Analysis:The power supply capacity of above-mentioned typical powering mode, analysis typical case are calculated using computer Whether powering mode has enough load transfering channels, if meets safe and reliable power demands, the maximum typical case of power supply capacity Powering mode is optimal, and so as to realize the cooperation between each voltage class of power distribution network, this powering mode can be used as Preferred powering mode;Step 6) judges whether power supply capacity reaches maximum:Planning personnel judges the confession of above-mentioned preferred powering mode by computer Whether electric energy power reaches maximum, if it is judged that being "Yes", it is optimization model of powering to illustrate current preferred powering mode, This flow so far terminates;Otherwise step 5) is reentered in next step to continue to analyze and determine new preferred powering mode.
- 2. the power distribution network coordinated planning method according to claim 1 for considering load transfering channel, it is characterised in that:In step It is rapid 2) in, the described power distribution network mode of connection analysis specific method be:Present situation power distribution network mode of connection data is collected, and analyzes the mode of connection of three levels of power distribution network respectively:Analyze first The mode of connection of 110kV and 35kV circuits, it is generally divided into double chain framework, single-chain type structure, biradial structure, single irradiation structure Four kinds of structures;Then 110kV the and 35kV transformer stations high and low pressure side mode of connection is analyzed, high-pressure side is generally divided into single busbar, line becomes Group, Nei Qiao, outer bridge, sectionalized single busbar connection various structures, low-pressure side are generally single-trunk segmental wiring;Ultimate analysis 10kV circuits The mode of connection, it is monocyclic to be generally divided into aerial radiation wiring, aerial simply connected network wiring, aerial more segmentation appropriateness contact wiring, cable Net, cable dual-ring network, cable twinshot, cable injection formula.
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CN106651156A (en) * | 2016-12-07 | 2017-05-10 | 国网上海市电力公司 | Important user custom power method, important user custom power system and applications thereof |
CN111953071A (en) * | 2020-07-21 | 2020-11-17 | 广东电网有限责任公司 | Intelligent classification statistical method for transformer substation wiring form |
CN112421679B (en) * | 2020-11-24 | 2023-07-25 | 国网天津市电力公司 | Electrical wiring structure based on hybrid micro-grid and energy flow method thereof |
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