CN105281325B - It is a kind of to lift the outer Optimal network frame method by electric energy power of receiving end power network - Google Patents
It is a kind of to lift the outer Optimal network frame method by electric energy power of receiving end power network Download PDFInfo
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Abstract
It is a kind of to lift the outer Optimal network frame method by electric energy power of receiving end power network.It includes setting the outer desired value Pmax by electric energy power of receiving end power network；According to receiving end power network line parameter, payload, power parameter, network topology structure and outside by electric channel parameter, calculate outer by electric energy power P；Judge whether P is more than or equal to Pmax；Calculate receiving end power network optimal load flow model；Judge receiving end electric network element and outer whether met that " N 1 " is verified and transient stability is verified by electric channel circuit；Identify the element that is unsatisfactory in the receiving end power network of verification and outer by electric channel circuit；Targetedly arrange the steps such as newly-built power network, enlarging or transformation project.The present invention provides effect：Based on receiving end power network optimal load flow, by the way that " N 1 " is verified and transient stability is verified, and can fully find to restrict the outer weak link by electric energy power of receiving end power network, quick effectively lifting receiving end power network is outer by electric energy power, so as to provide guidance for the optimization of receiving end Net Frame of Electric Network.
Description
Technical field
It is more particularly to a kind of to be lifted outside receiving end power network the invention belongs to Power System Planning, management and running technical field
By the Optimal network frame method of electric energy power.
Background technology
In face of increasingly serious problem of environmental pollution, prevention and control of air pollution action plan, clear stipulaties are actively carried out by China
Strengthen industrial enterprise's atmosphere pollution comprehensive regulation, coal-burning power plant's construction is limited significantly.Due to congenital endowment of resources and energy electricity
The direct contradiction of power demand, urban distribution network is generally receiving end power network.With continuing to develop for urban economy society, electric load is not
Disconnected to increase, increasing external electric power turns into the general character selection of urban area.Outside one urban area scale effect power network is received by electricity
Safety and stability stabilizing power, it is necessary to have a high regard for science, respect objective reality, never blindly improved in power network actual motion.Should
In the outer by receiving external electric power in the range of electric energy power of city receiving end power network, thus how to recognize influence city receiving end power network it is outer by
How the weak link of electric energy power, quickly effectively lift the outer most important by electric energy power of city receiving end power network.But at present still
Without the optimization method outside a kind of general raising receiving end power network by electric energy power, lack to being managed outside the lifting of receiving end power network by electric energy power
By guidance.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of rack lifted outside receiving end power network by electric energy power
Optimization method.
In order to achieve the above object, included outside the lifting receiving end power network that the present invention is provided by the Optimal network frame method of electric energy power
The following steps performed in order：
Step 1) the setting receiving end outer desired value Pmax by electric energy power of power network, wherein Pmax is the receiving end power network being manually set
What is reached is outer by electrical power value；
Step 2) according to the line parameter circuit value of receiving end power network to be assessed, payload, power parameter, network topology structure with
And it is outer by electric channel parameter, calculate the outer by electric energy power P of receiving end power network；
Step 3) judge whether P is more than or equal to Pmax, if so, then this flow terminates, otherwise next step enters step 4)；
Step 4) each outer conveying power by electric channel is increased based on capacity equilibrium method, and combine the circuit of receiving end power network
Parameter, payload, power parameter, network topology structure, calculate receiving end power network optimal load flow model；
Step 5) according to the optimal load flow the model calculation of above-mentioned acquisition, judge receiving end electric network element and outer by electric channel
Whether circuit meets " N-1 " verification and transient stability verification；
Step 6) according to above-mentioned check results, identify the element that is unsatisfactory in the receiving end power network of verification and outer by electric channel
Circuit；
Step 7) for the above-mentioned element being unsatisfactory in the receiving end power network of verification identified and outside by electric channel circuit, have
Newly-built power network, enlarging or transformation project are pointedly arranged, with the weak ring of power network outside receiving end power network of eliminating the effects of the act by electric energy power
Section；Due to the line parameter circuit value of receiving end power network, payload, power parameter, network topology structure and outer by electric channel parameter meeting
As power network is newly-built, enlarging or the arrangement of transformation project and update, so next step is transferred to step 2), with outer by electric energy power to it
P re-starts judgement.
In step 2) in, the outer method by electric energy power P of described calculating receiving end power network is each for gradually increase receiving end power network
The outer conveying power by electric channel, and carry out Load flow calculation, untill Load flow calculation is not restrained, now receiving end power network it is outer by
Electric energy power P is equal to each outer conveying power sum by electric channel.
In step 4) in, described receiving end power network optimal load flow model is with the generating of all generating sets in receiving end power network
The minimum object function of fuel total burn-off, and combination active power balance constraint, reactive power equilibrium are constrained, active power supply is exerted oneself
What constraint, the constraint of reactive power source units limits, voltage and branch current constraint were constructed；The optimal tide of described receiving end power network
Flow model includes：Optimal load flow object function and optimal load flow constraints；
Described optimal load flow object function is：
Wherein, SGFor generating set set in receiving end power network,ai、biAnd ciFor generating set
Gi consumption characteristic coefficient, PGiThe active power sent for generating set Gi；
Described optimal load flow constraints includes：
(a1) active power balance constraint：
Wherein, n is receiving end power network total node number, SBFor receiving end grid nodes set；PLiFor the load wattful power of node i
Rate, UiAnd θiThe respectively voltage magnitude and phase angle of node i, θij=θi-θj, GijAnd BijThe respectively row of bus admittance matrix i-th
The real and imaginary parts of jth column element,For node i and the outer incidence coefficient by electric channel k, if node i and outer by electric channel k
It is joined directly together, thenOtherwise
(a2) reactive power equilibrium is constrained：
Wherein, QGiThe reactive power sent for all kinds of reactive sources of node i, QLiFor the reactive load power of node i；
(a3) active power supply units limits：
PGimin≤PGi≤PGimax, i ∈ SG
Wherein, PGimaxAnd PGiminThe active power bound sent for node i；
(a4) reactive power source units limits：
QGimin≤QGi≤QGimax, i ∈ SR
Wherein, SRFor receiving end electric network reactive-load source node set, QGimaxAnd QGiminAbove and below the reactive power sent for node i
Limit；
(a5) voltage is constrained：
Uimin≤Ui≤Uimax, i ∈ SB
Wherein, UimaxAnd UiminThe respectively bound of node i voltage magnitude；
(a6) branch current is constrained：
Il≤Ilmax, l ∈ Sl
Wherein, SlFor all set of fingers of receiving end power network, IlFor the electric current flowed through on branch road l, IlmaxAllow for branch road l
Upper current limit.It should be noted that reactive power typically by layering and zoning principle configure, in the ideal case, different zones it
Between reactive power exchange is not present, therefore assume outer only to be transmitted wattful power by electric channel in receiving end power network optimal load flow constraints
Rate.
In step 4) in, described capacity equilibrium method refers to by pro rate be increased using the power margin that circuit can be transmitted
Plus it is outer by electric general power, the power margin that circuit can be transmitted is that circuit rated capacity subtracts and conveyed power, and institute is increased
Outer 0.05 times be equal to by electric general power outside by electric energy power P.
In step 5) in, the requirement of described satisfaction " N-1 " verification refers to any element or outer by electricity in receiving end power network
When any circuit fault-free in passage disconnects, the stable operation of receiving end power network can be kept, and does not cause other elements to exceed rule
Fixed accident overload and voltage tolerance.
In step 5) in, the described requirement for meeting transient stability verification refers to receiving end power network or outer by electric channel generation line
Road three-phase shortcircuit permanent fault and single-phase transient fault, and in the case where taking no action to, system can keep stable.
In step 7) in, described grassroot project includes newly-built transformer station, circuit, power plant and outer by electric channel；Extend item
Mesh includes enlarging main transformer, enlarging power plant, increase reactive power compensator；Transformation project includes main transformer increase-volume, circuit increase-volume.
The beneficial effect for the outer Optimal network frame method by electric energy power of lifting receiving end power network that the present invention is provided：
Compared with prior art, the present invention is based on receiving end power network optimal load flow, passes through " N-1 " verification and transient stability school
Test, can fully find to restrict the outer weak link by electric energy power of receiving end power network, quick effectively lifting receiving end power network is outer by electric energy
Power, so as to provide guidance for the optimization of receiving end Net Frame of Electric Network.
Brief description of the drawings
The outer Optimal network frame method implementation process figure by electric energy power of lifting receiving end power network that Fig. 1 provides for the present invention.
Embodiment
Rack outside the lifting receiving end power network provided below in conjunction with the accompanying drawings with specific embodiment the present invention by electric energy power is excellent
Change method is described in detail.
As shown in figure 1, the outer Optimal network frame method by electric energy power of lifting receiving end power network that the present invention is provided is included in order
The following steps of execution：
Step 1) the setting receiving end outer desired value Pmax by electric energy power of power network, wherein Pmax is the receiving end power network being manually set
What is reached is outer by electrical power value；
Step 2) according to the line parameter circuit value of receiving end power network to be assessed, payload, power parameter, network topology structure with
And it is outer by electric channel parameter, calculate the outer by electric energy power P of receiving end power network；
The outer method by electric energy power P of described calculating receiving end power network is each outer by electric channel for gradually increase receiving end power network
Power is conveyed, and carries out Load flow calculation, untill Load flow calculation is not restrained, now the outer of receiving end power network is equal to by electric energy power P
Each outer conveying power sum by electric channel.
Step 3) judge whether P is more than or equal to Pmax, if so, then this flow terminates, otherwise next step enters step 4)；
Step 4) each outer conveying power by electric channel is increased based on capacity equilibrium method, and combine the circuit of receiving end power network
Parameter, payload, power parameter, network topology structure, calculate receiving end power network optimal load flow model；
Described receiving end power network optimal load flow model is with the fuel used to generate electricity total burn-off of all generating sets in receiving end power network
Minimum object function, and combine active power balance constraint, it is reactive power equilibrium constraint, active power supply units limits, idle
What power supply units limits, voltage constraint and branch current constraint were constructed；The optimal load flow model bag of described receiving end power network
Include：Optimal load flow object function and optimal load flow constraints；
Described optimal load flow object function is：
Wherein, SGFor generating set set in receiving end power network,ai、biAnd ciFor generating set
Gi consumption characteristic coefficient, PGiThe active power sent for generating set Gi；
Described optimal load flow constraints includes：
(a1) active power balance constraint：
Wherein, n is receiving end power network total node number, SBFor receiving end grid nodes set；PLiFor the load wattful power of node i
Rate, UiAnd θiThe respectively voltage magnitude and phase angle of node i, θij=θi-θj, GijAnd BijThe respectively row of bus admittance matrix i-th
The real and imaginary parts of jth column element,For node i and the outer incidence coefficient by electric channel k, if node i and outer by electric channel
K is joined directly together, thenOtherwise
(a2) reactive power equilibrium is constrained：
Wherein, QGiThe reactive power sent for all kinds of reactive sources of node i, QLiFor the reactive load power of node i；
(a3) active power supply units limits：
PGimin≤PGi≤PGimax, i ∈ SG
Wherein, PGimaxAnd PGiminThe active power bound sent for node i；
(a4) reactive power source units limits：
QGimin≤QGi≤QGimax, i ∈ SR
Wherein, SRFor receiving end electric network reactive-load source node set, QGimaxAnd QGiminAbove and below the reactive power sent for node i
Limit；
(a5) voltage is constrained：
Uimin≤Ui≤Uimax, i ∈ SB
Wherein, UimaxAnd UiminThe respectively bound of node i voltage magnitude；
(a6) branch current is constrained：
Il≤Ilmax, l ∈ Sl
Wherein, SlFor all set of fingers of receiving end power network, IlFor the electric current flowed through on branch road l, IlmaxAllow for branch road l
Upper current limit.It should be noted that reactive power typically by layering and zoning principle configure, in the ideal case, different zones it
Between reactive power exchange is not present, therefore assume outer only to be transmitted wattful power by electric channel in receiving end power network optimal load flow constraints
Rate.
Described capacity equilibrium method refers to that the power margin that can be transmitted using circuit is increased as pro rate outer by electricity
General power, the power margin that circuit can be transmitted subtracts for circuit rated capacity and has conveyed power, and institute is increased outer by electric total work
Rate is equal to 0.05 times outside by electric energy power P.
Step 5) according to the optimal load flow the model calculation of above-mentioned acquisition, judge receiving end electric network element and outer by electric channel
Whether circuit meets " N-1 " verification and transient stability verification；
The requirement of described satisfaction " N-1 " verification refers to any element or outer by any in electric channel in receiving end power network
When circuit fault-free disconnects, the stable operation of receiving end power network can be kept, and it is excessively negative not cause other elements to exceed defined accident
Lotus and voltage tolerance.
The described requirement for meeting transient stability verification refers to receiving end power network or outer by electric channel generation circuit three-phase shortcircuit
Permanent fault and single-phase transient fault, and in the case where taking no action to, system can keep stable.
Step 6) according to above-mentioned check results, identify the element that is unsatisfactory in the receiving end power network of verification and outer by electric channel
Circuit；
Step 7) for the above-mentioned element being unsatisfactory in the receiving end power network of verification identified and outside by electric channel circuit, have
Newly-built power network, enlarging or transformation project are pointedly arranged, with the weak ring of power network outside receiving end power network of eliminating the effects of the act by electric energy power
Section；Due to the line parameter circuit value of receiving end power network, payload, power parameter, network topology structure and outer by electric channel parameter meeting
As power network is newly-built, enlarging or the arrangement of transformation project and update, so next step is transferred to step 2), with outer by electric energy power to it
P re-starts judgement.
Described grassroot project includes newly-built transformer station, circuit, power plant and outer by electric channel；Expansion project includes enlarging and led
Become, extend power plant, increase reactive power compensator；Transformation project includes main transformer increase-volume, circuit increase-volume.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it all should include
Within protection scope of the present invention.
Claims (7)
1. a kind of lift the outer Optimal network frame method by electric energy power of receiving end power network, it is characterised in that：Described lifting receiving end power network
The outer Optimal network frame method by electric energy power includes the following steps performed in order：
Step 1) the setting receiving end outer desired value Pmax by electric energy power of power network, wherein Pmax is that the receiving end power network being manually set is wanted
What is reached is outer by electrical power value；
Step 2) according to the line parameter circuit value of receiving end power network to be assessed, payload, power parameter, network topology structure and outer
By electric channel parameter, the outer by electric energy power P of receiving end power network is calculated；
Step 3) judge whether P is more than or equal to Pmax, if so, then this flow terminates, otherwise next step enters step 4)；
Step 4) each outer conveying power by electric channel is increased based on capacity equilibrium method, and combine the circuit ginseng of receiving end power network
Number, payload, power parameter, network topology structure, calculate receiving end power network optimal load flow model；
Step 5) according to the optimal load flow the model calculation of above-mentioned acquisition, judge receiving end electric network element and outer by electric channel circuit
Whether " N-1 " verification and transient stability verification are met；
Step 6) according to above-mentioned " N-1 " verification and transient stability check results, identify and be unsatisfactory in the receiving end power network of verification
Element and outer by electric channel circuit；
Step 7) for the above-mentioned element being unsatisfactory in the receiving end power network of verification identified and outside by electric channel circuit, it is directed to
Property arrange power network it is newly-built, enlarging or transformation project, with the electrical network weak link outside receiving end power network of eliminating the effects of the act by electric energy power；By
In the line parameter circuit value of receiving end power network, payload, power parameter, network topology structure and it is outer can be with electricity by electric channel parameter
Net is newly-built, enlarging or the arrangement of transformation project and update, so next step is transferred to step 2), with to its it is outer by electric energy power P again
Judged.
2. the outer Optimal network frame method by electric energy power of lifting receiving end power network according to claim 1, it is characterised in that：In step
It is rapid 2) in, the outer method by electric energy power P of described calculating receiving end power network is each outer by electric channel for gradually increase receiving end power network
Power is conveyed, and carries out Load flow calculation, untill Load flow calculation is not restrained, now the outer of receiving end power network is equal to by electric energy power P
Each outer conveying power sum by electric channel.
3. the outer Optimal network frame method by electric energy power of lifting receiving end power network according to claim 1, it is characterised in that：In step
It is rapid 4) in, described receiving end power network optimal load flow model be with the fuel used to generate electricity total burn-off of all generating sets in receiving end power network most
Small is object function, and combines active power balance constraint, reactive power equilibrium constraint, active power supply units limits, idle electricity
What source units limits, voltage constraint and branch current constraint were constructed；The optimal load flow model of described receiving end power network includes：
Optimal load flow object function and optimal load flow constraints；
Described optimal load flow object function is：
Wherein, SGFor generating set set in receiving end power network,ai、biAnd ciFor generating set Gi's
Consumption characteristic coefficient, PGiThe active power sent for generating set Gi；
Described optimal load flow constraints includes：
(a1) active power balance constraint：
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Wherein, n is receiving end power network total node number, SBFor receiving end grid nodes set；PLiFor the load active power of node i, UiWith
θiThe respectively voltage magnitude and phase angle of node i, θij=θi-θj, GijAnd BijRespectively the i-th row of bus admittance matrix jth row are first
The real and imaginary parts of element,For node i and the outer incidence coefficient by electric channel k, if node i and outer by the direct phases of electric channel k
Even, thenOtherwise
(a2) reactive power equilibrium is constrained：
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Wherein, QGiThe reactive power sent for all kinds of reactive sources of node i, QLiFor the reactive load power of node i；
(a3) active power supply units limits：
PGimin≤PGi≤PGimax, i ∈ SG
Wherein, PGimaxAnd PGiminThe active power bound sent for node i；
(a4) reactive power source units limits：
QGimin≤QGi≤QGimax, i ∈ SR
Wherein, SRFor receiving end electric network reactive-load source node set, QGimaxAnd QGiminThe reactive power bound sent for node i；
(a5) voltage is constrained：
Uimin≤Ui≤Uimax, i ∈ SB
Wherein, UimaxAnd UiminThe respectively bound of node i voltage magnitude；
(a6) branch current is constrained：
Il≤Ilmax, l ∈ Sl
Wherein, SlFor all set of fingers of receiving end power network, IlFor the electric current flowed through on branch road l, IlmaxThe electric current allowed for branch road l
The upper limit.
4. the outer Optimal network frame method by electric energy power of lifting receiving end power network according to claim 1, it is characterised in that：In step
It is rapid 4) in, described capacity equilibrium method refers to that the power margin that can be transmitted using circuit is increased as pro rate outer by electric total
Power, the power margin that circuit can be transmitted subtracts for circuit rated capacity and has conveyed power, and institute is increased outer by electric general power
Equal to outside by 0.05 times of electric energy power P.
5. the outer Optimal network frame method by electric energy power of lifting receiving end power network according to claim 1, it is characterised in that：In step
It is rapid 5) in, the requirement of described satisfaction " N-1 " verification refers to any element or outer by any in electric channel in receiving end power network
When circuit fault-free disconnects, the stable operation of receiving end power network can be kept, and it is excessively negative not cause other elements to exceed defined accident
Lotus and voltage tolerance.
6. the outer Optimal network frame method by electric energy power of lifting receiving end power network according to claim 1, it is characterised in that：In step
It is rapid 5) in, the described requirement for meeting transient stability verification refers to receiving end power network or outer is occurred circuit three-phase shortcircuit forever by electric channel
Long failure and single-phase transient fault, and in the case where taking no action to, system can keep stable.
7. the outer Optimal network frame method by electric energy power of lifting receiving end power network according to claim 1, it is characterised in that：In step
It is rapid 7) in, described grassroot project includes newly-built transformer station, circuit, power plant and outer by electric channel；Expansion project includes enlarging and led
Become, extend power plant, increase reactive power compensator；Transformation project includes main transformer increase-volume, circuit increase-volume.
Priority Applications (1)
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| CN109713730A (en) * | 2018-12-05 | 2019-05-03 | 中国电力科学研究院有限公司 | A kind of calculation method for most receiving electric scale greatly of network system |
| CN109347103A (en) * | 2018-12-14 | 2019-02-15 | 国网山东省电力公司经济技术研究院 | A kind of receiving end power grid is outer by electric energy power analysis method |
| CN110232642B (en) * | 2019-06-28 | 2021-07-09 | 国网河北省电力有限公司经济技术研究院 | Topology planning and optimizing method and device for power failure risk prevention |
| CN111555337B (en) * | 2020-07-13 | 2020-12-15 | 国网江西省电力有限公司电力科学研究院 | Analysis method for improving direct current receiving capacity of direct current weak receiving end power grid |
| CN112054515B (en) * | 2020-08-28 | 2022-12-06 | 武汉大学 | Receiving-end power grid DC receiving capacity evaluation method based on multi-objective optimization |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094911A (en) * | 2012-11-19 | 2013-05-08 | 中国电力科学研究院 | Method for optimizing direct current weak receiving terminal power grid static var compensator (SVC) dynamic reactive power compensation configuration measures |
| CN103258299A (en) * | 2013-04-11 | 2013-08-21 | 国家电网公司 | Net rack optimization method for multi-direct-current centralized fed receiving end power grid |
| CN103986151A (en) * | 2014-03-20 | 2014-08-13 | 国家电网公司 | Alternating-current receiving end grid direct-current receiving scale calculation method |
| CN104809521A (en) * | 2015-05-05 | 2015-07-29 | 国家电网公司 | Double-layer optimization based evaluation method for external power receiving capability of receiving-end power grid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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-
2015
- 2015-10-10 CN CN201510651769.4A patent/CN105281325B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094911A (en) * | 2012-11-19 | 2013-05-08 | 中国电力科学研究院 | Method for optimizing direct current weak receiving terminal power grid static var compensator (SVC) dynamic reactive power compensation configuration measures |
| CN103258299A (en) * | 2013-04-11 | 2013-08-21 | 国家电网公司 | Net rack optimization method for multi-direct-current centralized fed receiving end power grid |
| CN103986151A (en) * | 2014-03-20 | 2014-08-13 | 国家电网公司 | Alternating-current receiving end grid direct-current receiving scale calculation method |
| CN104809521A (en) * | 2015-05-05 | 2015-07-29 | 国家电网公司 | Double-layer optimization based evaluation method for external power receiving capability of receiving-end power grid |
Non-Patent Citations (1)
| Title |
|---|
| 受端电网最大值流受入规模分析方法;周勤勇等;《高电压技术》;20150331;第41卷(第3期);第770-777页 * |
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