CN108899902A - A kind of system and method for flexibility power distribution network optimizing operating mode - Google Patents
A kind of system and method for flexibility power distribution network optimizing operating mode Download PDFInfo
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- CN108899902A CN108899902A CN201810897904.7A CN201810897904A CN108899902A CN 108899902 A CN108899902 A CN 108899902A CN 201810897904 A CN201810897904 A CN 201810897904A CN 108899902 A CN108899902 A CN 108899902A
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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
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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]
Abstract
The present invention discloses a kind of system and method for flexible power distribution network optimizing operating mode, which includes data capture unit, flexible parameter introducing unit and model construction and solve unit；This method includes determining the current method of operation of power distribution network, and obtain the corresponding historical data of the current method of operation of power distribution network；The objective function and constraint condition of power distribution network running optimizatin are constructed, and introduces corresponding flexible parameter, flexibility processing is carried out to the objective function of building and constraint condition respectively；The multidimensional flexible comprehensive Optimized model of power distribution network operation is formed based on flexibility treated objective function and constraint condition, and the historical data that will acquire is directed into multidimensional flexible comprehensive Optimized model and solves, and obtains the optimal desired value of the current method of operation of power distribution network.Constraint condition carries out flexibility processing by introducing flexible parameter in the multidimensional flexible comprehensive Optimized model that the present invention establishes, so that the boundary flexibility of constraint condition, the variation of flexible adaptation power distribution network operating structure and parameter.
Description
Technical field
The present invention relates to system for distribution network of power technical fields, and in particular to a kind of flexibility power distribution network optimizing operating mode
System and method.
Background technique
With the fast development of power industry and being constantly progressive for industrial technology, the especially deep reality of smart grid construction
It applying, people propose increasingly higher demands to the operation of power distribution network, this just needs to optimize the method for operation of power distribution network,
Make the method for operation of in terms of safety, reliability, economy " optimal ".
Specifically, by being adjusted to various power equipments in power distribution network, to change the operating status of power distribution network,
Realize the optimization operation of power distribution network, the referred to as optimization of the power distribution network method of operation.In the research of the power distribution network method of operation, due to people
Attention degree it is inadequate, and by existing acquisition device configure restriction, the research of power distribution network optimizing operating mode is still located
In the starting stage.Currently, the method for research power distribution network optimizing operating mode is primarily present both sides deficiency：One, due to using
Deterministic method establishes the optimal model of power distribution network operation, and the boundary of these model feasible solutions is rigid, therefore difficult
To cope with the variation of power distribution network operating structure and parameter, so that prepared optimal operation mode lacks flexibility；Two, due to only
It for being studied in a certain respect for power distribution network optimizing operating mode, cannot comprehensively be studied, so that prepared
It is optimal that power distribution network optimal operation mode is unable to reach synthesis.
Summary of the invention
The present invention is directed to solve the technical problems existing in the prior art at least to some extent, a kind of flexible distribution is proposed
The system and method for net optimizing operating mode improve the flexibility of power distribution network optimizing operating mode, so that prepared match
It is optimal that power grid optimal operation mode is unable to reach synthesis.
In order to achieve the object of the present invention, according to a first aspect of the present invention, embodiment of the present invention provides a kind of flexible distribution
The system of net optimizing operating mode specifically uses following technical scheme：
The system includes data capture unit, flexible parameter introducing unit and model construction and solves unit；
The data capture unit obtains the power distribution network currently side of operation for determining the current method of operation of power distribution network
The corresponding historical data of formula；
The flexibility parameter introduces objective function and constraint condition that unit is used to construct power distribution network running optimizatin, and draws
Enter corresponding flexible parameter, the objective function to the building and constraint condition carry out flexibility processing respectively；
It the model construction and solves unit and is used for based on the flexibility treated objective function and constraint condition shape
At the multidimensional flexible comprehensive Optimized model that power distribution network is run, and the historical data that will acquire is directed into the multidimensional flexibility
It is solved in Integrated Optimization Model, obtains the optimal desired value of the current method of operation of the power distribution network.
In order to achieve the object of the present invention, as same inventive concept, according to a second aspect of the present invention, embodiment of the present invention
Also provide a kind of method of flexible power distribution network optimizing operating mode comprising the flexible power distribution network of one of above-mentioned multiple embodiments
The system of optimizing operating mode, the realization of this method are based on the system；
Specifically, this method comprises the following steps：
It determines the current method of operation of power distribution network, and obtains the corresponding historical data of the current method of operation of the power distribution network；
The objective function and constraint condition of power distribution network running optimizatin are constructed, and introduces corresponding flexible parameter, it is right respectively
The objective function and constraint condition of the building carry out flexibility processing；
Based on the flexibility treated objective function and constraint condition, the multidimensional flexible comprehensive of power distribution network operation is formed
Optimized model, and the historical data got is directed into the multidimensional flexible comprehensive Optimized model and is solved, obtain institute
State the optimal desired value of the current method of operation of power distribution network.
Compared with prior art, above embodiment system and method due to set up multidimensional flexible comprehensive optimization
Constraint condition carries out flexibility processing by introducing flexible parameter in model, so that the boundary flexibility of constraint condition, Neng Gouling
The variation living for adapting to power distribution network operating structure and parameter, improves the flexibility of power distribution network optimizing operating mode；Simultaneously because more
Objective function is also introduced into flexible parameter and carries out flexibility processing in dimension flexible comprehensive Optimized model, therefore can take into account power distribution network operation
The optimal operation mode of safety, reliability and economy is analyzed, so that analysis is more fully, so that prepared power distribution network is most
It is optimal that the excellent method of operation reaches synthesis.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural representation of the system for flexible power distribution network optimizing operating mode that embodiment of the present invention provides
Figure；
Fig. 2 is a kind of flow chart of the method for flexible power distribution network optimizing operating mode that embodiment of the present invention provides.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details understands the embodiment of the present invention to cut thoroughly.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, it is illustrated below by specific embodiment combination attached drawing.
Fig. 1 is a kind of frame signal of the system for flexible power distribution network optimizing operating mode that embodiment of the present invention provides
Figure, as shown in Figure 1, the system includes data capture unit 210, flexible parameter introduces unit 220 and model construction and solution is single
First 230 three zones units, lower mask body introduce the three zones unit.
In the present embodiment, the data capture unit 210 is for determining the current method of operation of power distribution network, and obtains institute
State the corresponding historical data of the current method of operation of power distribution network；
In the present embodiment, the flexible parameter introduces the target letter that unit 220 is used to construct power distribution network running optimizatin
Several and constraint condition, and corresponding flexible parameter is introduced, the objective function to the building and constraint condition carry out soft respectively
Propertyization description；
In the present embodiment, it the model construction and solves unit 230 and is used for based on the flexibility treated mesh
Scalar functions and constraint condition form the multidimensional flexible comprehensive Optimized model of power distribution network operation, and by the history number got
It is solved according to being directed into the multidimensional flexible comprehensive Optimized model, obtains the optimal expectation of the current method of operation of the power distribution network
Value.
As a better embodiment, it is preferable that as shown in Figure 1, it includes building module that flexible parameter, which introduces unit 220,
2201 and handling flexibly module 2202：
Specifically, it is the objective function for optimizing economic indicator that the building module 2201, which is used to construct with via net loss, with
And building includes the constraint condition of the constraint of node power equilibrium equation, node voltage constraint and Branch Power Flow constraint；
Specifically, the handling flexibly module 2202 for respectively the objective function, node power equilibrium equation about
Corresponding flexible parameter is introduced in beam, node voltage constraint and Branch Power Flow constraint to be handled.
As a better embodiment, it is preferable that as shown in Figure 1, model construction and solution unit 230 include model
Building and simplified module 2301 and model solution module 2302；
Specifically, the model construction and simplify module 2301 be used for based on the flexibility treated objective function and
Constraint condition forms the multidimensional flexible comprehensive Optimized model of power distribution network operation, and according to preset condition, flexible to the multidimensional
Integrated Optimization Model carries out simplifying processing；In present embodiment, the preset condition is preferably but not limited to include operations staff
The integrated conditions such as electric network security, reliability, the economy of demand, it is to be understood that specific preset condition is according to reality
The demand of operation is adjusted determination.
Specifically, the model solution module 2302 is used to be directed into the historical data got at the simplification
It in multidimensional flexible comprehensive Optimized model after reason, and is solved using respective algorithms, obtains the power distribution network currently side of operation
The optimal desired value of formula.Wherein, Meta-heurist algorithm, including genetic algorithm (Genetic are preferably used for the algorithm of solution
) and particle swarm algorithm Algorithm.The genetic algorithm (Genetic Algorithm) is simulation Darwinian evolutionism
Natural selection and genetic mechanisms biological evolution process computation model, be a kind of by simulation natural evolution process searches
The method of optimal solution.The particle swarm algorithm is also referred to as particle swarm optimization algorithm or flock of birds foraging algorithm (Particle Swarm
Optimization), particle swarm algorithm belong to evolution algorithm one kind it is similar with simulated annealing, it is also from RANDOM SOLUTION
It sets out, optimal solution is found by iteration.
From the above, it can be seen that the flexible power distribution network optimizing operating mode that above embodiment of the present invention is proposed
System due in the multidimensional flexible comprehensive Optimized model set up constraint condition carried out at flexibility by introducing flexible parameter
Reason, so that the boundary flexibility of constraint condition, is capable of the variation of flexible adaptation power distribution network operating structure and parameter, improves research
Flexibility；Simultaneously because objective function is also introduced into flexible parameter progress flexibility processing in multidimensional flexible comprehensive Optimized model,
Therefore the optimal operation mode research that power distribution network safety in operation, reliability and economy can be taken into account, so that research is more fully.
It should be noted that included each system unit is only according to function logic in above system embodiment
It is divided, but is not limited to the above division, as long as corresponding functions can be realized；In addition, each functional unit
Specific name be also only for convenience of distinguishing each other, the protection scope being not intended to restrict the invention.
In addition, an embodiment of the invention also provides a kind of method of flexible power distribution network optimizing operating mode, this is soft
Property power distribution network optimizing operating mode method system of the execution dependent on more flexible power distribution network optimizing operating modes, also
It is to say, this method is the specific implementation process of the system, wherein the method flow of the flexibility power distribution network optimizing operating mode is as schemed
Shown in 2.
Specifically, this approach includes the following steps S101~S103：
The step S101 of present embodiment includes determining the current method of operation of power distribution network, and obtain the power distribution network and currently transport
The corresponding historical data of line mode；
Step S101 detailed process is to determine the current method of operation of power distribution network and corresponding historical data, the history number
According to the input data in this, as optimizing operating mode method, selected from the historical data base of the current method of operation of power distribution network
Typical Historic Section is analyzed.
In embodiments of the present invention, it should be noted that the historical data includes but is not limited to that power distribution network is currently transported
The corresponding resistance of total, each branch of branch, active power, reactive power, terminal voltage amplitude, each branch in line mode
In the burden with power power that flows through of the active power that issues of each node and reactive power, each node and load or burden without work power with
And voltage magnitude of each node etc., in specific implementation process, going through needed for being selected according to actual techniques demand
History data type, unmentioned other relevant historical datas for influencing power distribution network operation, do not go to live in the household of one's in-laws on getting married one by one herein in present embodiment
It states.
The step S102 of present embodiment method includes the objective function and constraint condition for constructing power distribution network running optimizatin,
And corresponding flexible parameter is introduced, the objective function to the building and constraint condition carry out flexibility processing respectively；
Step S102 detailed process is that building is the objective function for optimizing economic indicator, and building packet with via net loss
The constraint condition of the constraint of node power equilibrium equation, node voltage constraint and Branch Power Flow constraint is included, it is specific as follows：
(1) objective function constructed is generally optimization economic indicator with via net loss, is expressed as：
In formula (1)：NbIndicate the branch sum in distribution network；RiIndicate the resistance of i-th branch；Pi,QiIt respectively indicates
Flow through the active power and reactive power of i-th branch；ViIndicate the terminal voltage amplitude of i-th branch.
(2) constraint condition constructed is mainly safety, reliability constraint, is generally comprised：
I) node power equilibrium equation constrains
The operation of power distribution network must satisfy the active and reactive power equilibrium equation constraint of each node, as follows：
In formula (2)：PGi,QGiRespectively indicate the active power and reactive power of node i sending；PLi,QLiRespectively indicate node
The burden with power power and load or burden without work power that i flows through；ViIndicate the voltage magnitude of node i；VjIndicate the voltage magnitude of node j；
Gij,Bij,θijRespectively indicate conductance, susceptance and the phase angle difference between node i and node j.
II) node voltage constrains
In order to guarantee safety and the power supply quality of power distribution network operation, it is desirable that in conjunction with the actual conditions of power distribution network, by each section
The voltage magnitude deviation of point controls in the permitted range of national standard, and the voltage magnitude of each node i needs to meet thus：
Vi,min≤Vi≤Vi,maxI=1,2 ..., N (3)
In formula (3)：Vi,Vi,max,Vi,minRespectively indicate the voltage magnitude and its upper limit value, lower limit value of node i；N expression is matched
The node total number of electric system.
III) Branch Power Flow constrains
It is limited by distribution current carrying capacity of conductor, it is desirable that the power flowed through on each branch is in a certain range, as follows：
Si≤Si,maxI=1,2 ..., Nb (4)
In formula (4)：Sl,Sl,maxRespectively indicate the apparent energy and power limit of i-th branch road.
In embodiment of the present invention method, since above-mentioned established model is rigid constraint Optimized model, optimization
As a result there is certain one-sidedness and limitation, and lack the flexibility of reply power distribution network parameter change, therefore the present invention is real
The mode of applying introduces flexibility analysis and optimizes to above-mentioned established model, respectively in objective function, node power equilibrium equation
Corresponding flexible parameter is introduced in constraint, node voltage constraint and Branch Power Flow constraint to be handled, it is specific as follows：
I) node power equilibrium equation flexible constraint
In conventional electrical distribution net, node load is generally constant, and node power equilibrium equation is caused to become rigid, because
Node load can be considered as controlled variable by this, by reasonably control node load power, realize the regulation purpose such as peak load shifting,
So that formula (2) node power equilibrium equation is expressed as after constraining in the flexible parameter of introducing：
In formula (5)：ΔPLi,ΔQLiRespectively indicate the active and load or burden without work power deviation of node i；δLiIndicate node i
Load flexibility index, value range are [0,1].
The meaning of load flexibility index is, as the δ of node iLiHave compared to other nodes and power distribution network via net loss function
When having larger association, the economy for illustrating that power distribution network powers to the node load is poor, by reasonably reducing the negative of the node
Lotus can largely improve the overall economy quality of power distribution network operation.
II) node voltage flexible constraint
Flexible parameter is introduced, formula (3) progress flexibility is expressed as：
Vi,min-δViΔVi,min≤Vi≤Vi,max+δViΔVi,max (6)
In formula (6)：ΔVi,max,ΔVi,minRespectively indicate Vi,max,Vi,minIt is maximum allowable more limit value；δViIndicate node i
Voltage flexibility index, value range be [0,1].
III) Branch Power Flow flexible constraint
Ibid, flexible parameter is introduced, formula (4) progress flexibility is expressed as：
Si≤Si,max+δFiΔSi,max (7)
In formula (7)：ΔSi,maxIndicate the maximum allowable more limit value of i-th branch road trend；δFiIndicate the trend of branch i
Flexibility index, value range are [0,1].
According to formula (6) and formula (7) it is found that when carrying out power distribution network optimizing operating mode, the reality according to power distribution network is needed
Situation rationally expands or shrinks restrained boundary, to improve safety, reliability and the economy of power distribution network operation.
IV) if the soft evaluation index of the power distribution network method of operation can only from the point of view of power distribution network operation constraint
It intuitively determines the size of system operation feasible zone and the degree of flexibility of system, but not can determine that and take into account power distribution network operation
Safety, reliability and economy optimal operation mode, need to make objective function flexibility processing thus, to establish distribution
The flexible comprehensive Optimized model of the net method of operation.
Therefore, via net loss represented by formula (1) directly reflects the economy of power distribution network operation, introduces flexible parameter,
It is translated into equality constraint, it is as follows：
In formula (8)：f0Indicate the minimization expected value of power distribution network via net loss；Δ f indicates that power distribution network via net loss is acceptable
Maximum incrementss；δfIndicate via net loss flexibility index, value range is [0,1].
By formula (8) it is found that via net loss f ' is located at [f0, f0+ Δ f] between, although the economy of power distribution network operation is dropped
It is low, but, so that via net loss index is provided with flexibility, can increase and match by the damage control in terms of economy in a certain range
The feasible zone of operation of power networks.
The step S103 of present embodiment is the wind according to risk assessment database and relative coefficient table assessment power distribution network
Dangerous grade.
The step S103 of embodiment of the present invention include based on the flexibility treated objective function and constraint condition,
The multidimensional flexible comprehensive Optimized model of power distribution network operation is formed, and it is soft that the historical data got is directed into the multidimensional
It is solved in property Integrated Optimization Model, obtains the optimal desired value of the current method of operation of the power distribution network.
The step S103 detailed process of embodiment of the present invention is, based on flexibility treated objective function and constraint item
Part forms the multidimensional flexible comprehensive Optimized model of power distribution network operation, specific as follows：
By formula (9) it is found that the value of each flexibility index reflects the operating status of power distribution network from different angles：Network damage
Consume flexibility index δfIt is smaller, show that via net loss f ' is smaller, the economy of power distribution network operation is higher；Node voltage flexibility index δVi
With Branch Power Flow flexibility index δFiIt is bigger, show that the safety margin of operation is bigger, the safety and reliability of power distribution network operation is got over
It is high；Maximizing f (δ) means to make δfIndex is small as far as possible, makes δLi、δViAnd δFjIndex is big as far as possible, to make obtained operation side
It is optimal that formula has reached economy, safety, the various synthesis of reliability, at the same obtained optimal solution also assure have compared with
Big flexibility has stronger adaptibility to response to factor changeable in power distribution network.
In embodiment of the present invention method, since formula (9) introduces more flexibility index, so that the rule of solving model
Mould has certain increase, and becomes a complicated non-linear higher-dimension mixed-integer programming model, and direct solution formula (9) is
Sufficiently complex, it needs that multidimensional flexible comprehensive Optimized model is carried out to simplify processing according to preset condition thus, it is specific as follows：
1) due under normal circumstances, generally to meet the workload demand of each node as far as possible, not pay the utmost attention to pass through
Certain node loads are reduced to improve the economy of overall operation, therefore take the load flexibility index δ of each nodeLi=0；
2) assume that the voltage flexibility index of each node is equal, the trend flexibility index of each branch is equal.
Further, the historical data that will acquire, which is directed into, simplifies treated multidimensional flexible comprehensive Optimized model
In, and solved using certain algorithm, obtain the optimal desired value of the current method of operation of power distribution network；Wherein, for solving
Algorithm be preferably Meta-heurist algorithm, including genetic algorithm and particle swarm algorithm.
From the above, it can be seen that embodiment of the present invention system and method are comprehensive due to the multidimensional flexibility set up
It closes constraint condition in Optimized model and passes through the flexible parameter progress flexibility processing of introducing, so that the boundary flexibility of constraint condition,
It is capable of the variation of flexible adaptation power distribution network operating structure and parameter, improves the flexibility of research；Simultaneously because multidimensional flexibility is comprehensive
Close objective function in Optimized model and be also introduced into flexible parameter and carry out flexibility processing, thus can take into account power distribution network safety in operation,
The optimal operation mode of reliability and economy research, so that research is more fully.
Part undeployed in assessment system and its method in embodiment of the present invention, can refer to embodiment of above is
The corresponding part of system and its method, is no longer developed in details herein.
In the description of this specification, the description of reference term " embodiment ", " some embodiments " etc. means
At least one of the invention is contained in conjunction with the embodiment or example particular features, structures, materials, or characteristics described
In embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment party
Formula or example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiments
Or it can be combined in any suitable manner in example.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (9)
1. a kind of system of flexibility power distribution network optimizing operating mode, which is characterized in that the system includes data capture unit, flexibility
Parameter introduces unit and model construction and solves unit；
The data capture unit obtains the current method of operation pair of the power distribution network for determining the current method of operation of power distribution network
The historical data answered；
The flexibility parameter introduces objective function and constraint condition that unit is used to construct power distribution network running optimizatin, and introduces phase
The flexible parameter answered, the objective function to the building and constraint condition carry out flexibility processing respectively；
It the model construction and solves unit and is used to match based on the flexibility treated objective function and constraint condition formation
The multidimensional flexible comprehensive Optimized model of operation of power networks, and the historical data that will acquire is directed into the multidimensional flexible comprehensive
It is solved in Optimized model, obtains the optimal desired value of the current method of operation of the power distribution network.
2. a kind of system of flexible power distribution network optimizing operating mode according to claim 1, which is characterized in that the flexibility
It includes building module and handling flexibly module that parameter, which introduces unit,；
It is the objective function for optimizing economic indicator that the building module, which is used to construct with via net loss, and building includes node function
The constraint condition of the constraint of rate equilibrium equation, node voltage constraint and Branch Power Flow constraint；
The handling flexibly module is for respectively in the objective function, the constraint of node power equilibrium equation, node voltage constraint
It is handled with corresponding flexible parameter is introduced in Branch Power Flow constraint.
3. a kind of system of flexible power distribution network optimizing operating mode according to claim 1, which is characterized in that the model
Building and solution unit include model construction and simplified module, model solution module；
The model construction and simplify module and be used for based on the flexibility treated objective function and constraint condition, formation is matched
The multidimensional flexible comprehensive Optimized model of operation of power networks, and according to preset condition, to the multidimensional flexible comprehensive Optimized model into
Row simplifies processing；
The model solution module is used for the historical data that will acquire and is directed into the simplification treated that multidimensional is flexible
It is solved in Integrated Optimization Model, obtains the optimal desired value of the current method of operation of the power distribution network.
4. a kind of system of flexible power distribution network optimizing operating mode according to claim 3, which is characterized in that the history
Data be directed into the simplification treated solve in multidimensional flexible comprehensive Optimized model it is specific using modern heuristic calculation
Method is solved comprising genetic algorithm and particle swarm algorithm.
5. a kind of method of flexibility power distribution network optimizing operating mode comprising the flexible power distribution network of one of above-mentioned multiple embodiments
The system of optimizing operating mode, which is characterized in that this method comprises the following steps：
S101 determines the current method of operation of power distribution network, and obtains the corresponding historical data of the current method of operation of the power distribution network；
S102 constructs the objective function and constraint condition of power distribution network running optimizatin, and introduces corresponding flexible parameter, right respectively
The objective function and constraint condition of the building carry out flexibility processing；
S103 is based on the flexibility treated objective function and constraint condition, forms the multidimensional flexible comprehensive of power distribution network operation
Optimized model, and the historical data got is directed into the multidimensional flexible comprehensive Optimized model and is solved, obtain institute
State the optimal desired value of the current method of operation of power distribution network.
6. a kind of system of flexible power distribution network optimizing operating mode according to claim 5, which is characterized in that the step
S102 is specifically included：
Building is the objective function for optimizing economic indicator with via net loss, and construct and constrained including node power equilibrium equation,
The constraint condition of node voltage constraint and Branch Power Flow constraint；
It is introduced in the objective function, the constraint of node power equilibrium equation, node voltage constraint and Branch Power Flow constraint respectively
Corresponding flexibility parameter is handled.
7. a kind of system of flexible power distribution network optimizing operating mode according to claim 6, which is characterized in that the step
S103 is specifically included：
Based on the flexibility treated objective function and constraint condition, the multidimensional flexible comprehensive optimization of power distribution network operation is formed
Model, and according to preset condition, the multidimensional flexible comprehensive Optimized model is carried out to simplify processing；
The historical data got is directed into the simplification treated in multidimensional flexible comprehensive Optimized model and carried out
It solves, obtains the optimal desired value of the current method of operation of the power distribution network.
8. a kind of system of flexible power distribution network optimizing operating mode according to claim 7, which is characterized in that the simplification
Processing includes：
1) the load flexibility index δ of each node of power distribution network is takenLi=0；
2) the voltage flexibility index of each node of establishing power grid is equal, the trend flexibility index of each branch is equal.
9. a kind of system of flexible power distribution network optimizing operating mode according to claim 7, which is characterized in that described by institute
The historical data got is stated to be directed into the simplification treated in multidimensional flexible comprehensive Optimized model and solve specific
It is solved using Meta-heurist algorithm comprising genetic algorithm and particle swarm algorithm.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110264286A1 (en) * | 2010-04-27 | 2011-10-27 | Jong Soo Park | Smart control device |
| CN105006821A (en) * | 2015-07-01 | 2015-10-28 | 深圳供电局有限公司 | Method and system for researching power distribution network operation mode optimization |
| CN105071372A (en) * | 2015-07-20 | 2015-11-18 | 清华大学 | Voltage control method applied to flexible DC power distribution network |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110264286A1 (en) * | 2010-04-27 | 2011-10-27 | Jong Soo Park | Smart control device |
| CN105006821A (en) * | 2015-07-01 | 2015-10-28 | 深圳供电局有限公司 | Method and system for researching power distribution network operation mode optimization |
| CN105071372A (en) * | 2015-07-20 | 2015-11-18 | 清华大学 | Voltage control method applied to flexible DC power distribution network |
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