CN104537427B - Marine wind electric field collects the site selecting method of booster stations - Google Patents
Marine wind electric field collects the site selecting method of booster stations Download PDFInfo
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Abstract
The present invention relates to the site selecting method that a kind of marine wind electric field collects booster stations, comprise the following steps：The wind power generating set layout drawing provided according to user, each wind power generating set is connected with line segment and is grouped, and establish the mark of every section of current collection feeder line, select access point of the wind power generating set nearest from Rendezvous Point in each packet as this group of wind power generating set；According to the primary condition of different marine wind electric fields, optimization aim needed for selection, establishes object function, tries to achieve the optimal solution of object function, make the overall cost of ownership of wind power plant electrical system minimum, and collect the access point of booster stations and each group wind power generating set with extra large cable connection marine wind electric field；Whether the collector system wiring for judging to automatically generate occurs intersecting, if intersecting, the straight line that manually adjustment will appear from intersecting is replaced with broken line.
Description
Technical field
The invention belongs to marine wind electric field technical field, more particularly to a kind of marine wind electric field to collect the addressing side of booster stations
Method.
Background technology
Wind resource progressively turns into a kind of most ripe in addition to hydroelectric generation, most real regenerative resource.Relative to land
Upper wind power plant, Oversea wind power generation have its unique advantage：Wind-resources situation is more excellent, and it is small that marine wind electric field accounts for land area, hair
Electric situation is not substantially by the influence of topography；At sea establishing wind power plant means influence visual on wind power plant surrounding landscape most
It is small, it will not also produce very big noise pollution；Wind energy will not be stopped by the woods or building, therefore reach blade of wind-driven generator
Wind energy can reach maximum, and then wind-driven generator is operated in preferable working condition；The offshore wind generating of Large Copacity
Design, transport, the installation of group can be achieved on, and these Large Copacity wind power generating sets improve scale of wind power plant etc..
Due to these unique advantages, marine wind electric field has become the study hotspot of current regenerative resource, while Large marine wind
Electric field is by as following wind energy utilization important directions.Collect a weight of the booster stations addressing as marine wind electric field construction
Link is wanted, the network structure, reliability power supply and economy directly to following wind power plant have an impact.
In the prior art, at present domestic marine wind electric field collect booster stations addressing existing for subject matter be, on the one hand, choosing
The object function of location optimization is more to try to achieve according to the air line distance of source point and terminal.Because in the engineering of reality, marine wind electric field converges
Collect between booster stations and wind power generating set and be not all and be joined directly together, even if the wind power generating set being joined directly together may not also
It is straight line connection.So the object function and marine wind electric field of linear programming at present collect between booster stations and wind power generating set
Actual connected mode it is mutually far short of what is expected.On the other hand, in existing site selecting method, or planning personnel work it is various, it is necessary to
Much impossible factors are excluded in advance, and for maritime environment, the possible position for collecting booster stations is not easy to determine；Or wind
Extra large cable is intersected in the collector system of electric field, the no certain rule of connection between wind power generating set, gives later stage collector system
Optimization cause very big difficulty.
The content of the invention
In summary, the addressing of booster stations is collected it is necessory to provide a kind of simple and easy and controllable marine wind electric field
Method.
A kind of marine wind electric field collects the site selecting method of booster stations, comprises the following steps：The wind-force provided according to user is sent out
Group of motors layout drawing, each wind power generating set is connected with line segment and is grouped, and establish the mark of every section of current collection feeder line, selection is each
Access point of the wind power generating set nearest from Rendezvous Point as this group of wind power generating set in packet；According to different offshore wind farms
The primary condition of field, optimization aim needed for selection, establishes object function, tries to achieve the optimal solution of object function, make wind power plant electric
The overall cost of ownership of system is minimum, and collects the access of booster stations and each group wind power generating set with extra large cable connection marine wind electric field
Point；Whether the collector system wiring for judging to automatically generate occurs intersecting, if intersecting, manually adjustment will appear from handing over
The straight line of fork is replaced with broken line.
Relative to prior art, marine wind electric field provided by the invention collects the site selecting method of booster stations, for different seas
The difference of upper wind power plant primary condition, there is provided a variety of marine wind electric fields collect the addressing scheme of booster stations, suitable for multi-scheme
Design and optimization than choosing.Further, by it is determined that an artificial ring for determining wind power generating set and being grouped before addressing be present
Section, the controllability that designer connects up to collector system can be increased, improve the engineering adaptability of marine wind electric field addressing optimization.
Brief description of the drawings
Fig. 1 is the flow chart for the site selecting method that marine wind electric field provided by the invention collects booster stations.
Embodiment
Further stated in detail below according to Figure of description and in conjunction with specific embodiments to technical scheme.
Referring to Fig. 1, the site selecting method that marine wind electric field provided by the invention collects booster stations comprises the following steps：
Step 1, according to the wind power generating set layout drawing manually provided, the connection of each wind power generating set is divided with line segment
Group, and the mark of every section of current collection feeder line is established, wind power generating set nearest from Rendezvous Point in each packet is selected as the group
The access point of wind power generating set；
Step 2, according to the primary condition of different marine wind electric fields, optimization aim needed for selection, object function is established, is tried to achieve
The optimal solution of object function, make the overall cost of ownership of wind power plant electrical system minimum, and collected with extra large cable connection marine wind electric field
Booster stations and the access point of each group wind power generating set；
Step 3, whether the collector system wiring for judging to automatically generate occurs intersecting, if intersecting, manually
The straight line that adjustment will appear from intersecting is replaced with broken line.
In step 1, the wind-driven generator layout drawing can use CAD diagram paper form.Connect by each wind power generating set
During connecing packet, the circuit end points coordinate is identical with connected wind power generating set coordinate.
Wind power generating set layout drawing can be provided in the form of CAD diagram paper, and every group of wind power generating set number is by extra large cable current-carrying
The limitation of amount, by manually providing rational wind power generating set packet mode.After being divided into group, select in each packet from Rendezvous Point
Access point of the nearest wind power generating set as this group of wind power generating set, it is time-consuming short so as to which amount of calculation is small, meet actual work
Cheng Yingyong.
Specifically, set wind-driven generator packet count as, it is by all wind power generating set packet numberings, use
Extra large cable connects together the wind power generating set between each group.To the connection extra large cable label in every group of wind power generating set, rule
It is as follows：If packetIn havePlatform wind power generating set, since the extra large cable that the access point of the wind power generating set is joined directly together,
The extra large cable of the group is labeled as successively,...,.After marine wind electric field collects the position generation of booster stations, wind
Power generator group is collected booster stations with marine wind electric field by access point and is connected, and connection extra large cable is labeled as。
In step 2, specifically comprise the following steps：
Step 2.1, required optimization aim is selected.According to the wind power generating set of different marine wind electric fields arrangement, sea situation,
The difference of the primary condition such as extra large cable unit price, the optimization aim may include the overall cost of ownership of high pressure and middle pressure extra large cable it is minimum, in
Pressure and high-pressure undersea cable total length are minimum, middle pressure extra large cable total length is minimum, high-pressure undersea cable total length is minimum, circuit total losses are minimum,
One in extra large cable gross investment and circuit runtime total losses sum minimum etc..
Specifically, the overall cost of ownership of marine wind electric field electrical system be divided into marine wind electric field collect booster stations investment into
Sheet, wind power generating set cost of investment, the aspect of the cost of investment of extra large cable three.For different marine wind electric fields, only extra large cable
Cost of investment is different with the connected mode for collecting booster stations site and collector system and changes, thus by the investment of extra large cable into
This main standard as booster stations addressing.
Wherein, the cost of investment of extra large cable can be divided into extra large cable cost, and wear and tear expenses and marine usage take.
Calculation formula is
（1）
Wherein,For total hop count of extra large cable, for every section of extra large cable,For the cost of extra large cable,For the damage of extra large cable
Expend,Take for the marine usage of extra large cable.Because the electric current flowed through in different sections of extra large cables is different, this causes the sectional area of extra large cable
Selection will be different, thus also cause the difference of the cost of extra large cable, thereforeThe cost of extra large cable is one and extra large cable section
The related function of product.
（2）
Wherein,It is the sectional area of every section of extra large cable,For the unit price of every section of extra large cable, unit price is the sectional area of extra large cable
Function,It is the length value of every section of extra large cable.
（3）
WhereinFor the added losses coefficient of extra large cable,For rate for incorporation into the power network,For the current value flowed through in extra large cable,For electricity
Cable parameter,For cable length,, can be by looking into according to the equivalent hourage at full capacity of wind power plant for the equivalent loss time in year《Electricity
Force system design manual》It can obtain.According to specific rate for incorporation into the power network, annual electric energy loss is converted to expense, then according to operation
Phase year（Generally 25 years）Discounted.For interest rate,For runtime year.
（4）
WhereinMarine usage for every square meter takes,For the length of extra large cable,For the banding expropriation of land width of every extra large cable.
Equally, discounted by runtime year.For interest rate,For runtime year.
Step 2.2, according to selected optimization aim, object function is established, the optimal solution of object function is sought with steepest descent method,
Make overall cost of ownership minimum, and collect the access point of booster stations and each group wind power generating set with extra large cable connection marine wind electric field.
Steepest descent method can realize that finding most fast descent direction from current point finds optimum point.The base of steepest descent method
This thought is：From current pointSet out, take functionPointPlace declines most fast direction as the direction of search.ByTaylor expansions understand：
（5）
OmitHigher-order shear deformation item disregard, it is seen that take When, functional value declines at most.Then, may be used
It is as follows to construct the iterative step of steepest descent method：
S1：Choose initial point, give and terminate error, make k=0；
S2：CalculateIf, stop iteration, output, otherwise carry out the 3rd step；
S3：Take；
S4：Linear search is carried out, is askedSo that
（6）
Order, k=k+1, turn the 2nd step.
From above calculation procedure, during steepest descent method iteration ends, what is tried to achieve is one of object function stationary point near
Like point.
Determine optimal step sizeMethod it is as follows：
Method one：Using unidimensional search；
NowTurn into step-lengthFunction of a single variable, therefore can be obtained with any unidimensional search, i.e.,
（7）
Method two：The differential method；
Because
（8）
So under some simple scenarios, can make
（9）
To solve near-optimization step-lengthValue.
In step 3, if the collector system wiring automatically generated intersects, it can manually adjust and will appear from intersecting
Straight line replaced with broken line, and recalculate overall cost of ownership, but marine wind electric field collects the addressings of booster stations and no longer changed.
Marine wind electric field provided by the invention collects the site selecting method of booster stations, is sent out for the wind-force of different marine wind electric fields
The difference of the primary condition such as group of motors arrangement, sea situation, extra large cable unit price, there is provided a variety of marine wind electric fields collect the addressing of booster stations
Scheme, suitable for multivariant design and optimization than selecting.Further, by it is determined that an artificial determination wind-force before addressing be present
The link of generating set packet, can increase the controllability that designer connects up to collector system, improve marine wind electric field addressing optimization
Engineering adaptability.The site selecting method that the marine wind electric field collects booster stations has general applicability, and is easy to be applied in fact
Border, the design that booster stations are collected for marine wind electric field provide very high reference value.
In addition, those skilled in the art can also make other changes in spirit of the invention, these are according to present invention essence certainly
The change that god is made, it should all be included in scope of the present invention.
Claims (8)
1. a kind of marine wind electric field collects the site selecting method of booster stations, comprise the following steps：
According to the wind power generating set layout drawing manually provided, each wind power generating set is connected with line segment and is grouped, and established every
The mark of Duan Ji electricity feeder lines, wind power generating set nearest from Rendezvous Point in each packet is selected as this group of wind power generating set
Access point；
According to the difference of wind power generating set arrangement, sea situation, extra large cable unit price primary condition in different marine wind electric fields, needed for selection
Optimization aim, the optimization aim include high pressure and it is middle pressure extra large cable overall cost of ownership it is minimum, it is middle pressure and high-pressure undersea cable total length
Minimum, middle pressure extra large cable total length is minimum, high-pressure undersea cable total length is minimum, circuit total losses are minimum, extra large cable gross investment and circuit are transported
One or more of departure date total losses sum minimum, establishes object function, and the optimal of object function is tried to achieve with steepest descent method
Solution, makes the overall cost of ownership of wind power plant electrical system minimum, and collects booster stations and each group wind with extra large cable connection marine wind electric field
The access point of power generator group；
Whether the collector system wiring for judging to automatically generate occurs intersecting, if intersecting, manually adjustment will appear from
The straight line of intersection is replaced with broken line.
2. marine wind electric field as claimed in claim 1 collects the site selecting method of booster stations, it is characterised in that is sent out by each wind-force
During group of motors connection packet, the line segment extreme coordinates are identical with connected wind power generating set coordinate.
3. marine wind electric field as claimed in claim 1 collects the site selecting method of booster stations, it is characterised in that according to every group of apoplexy
Power generator group number is limited by extra large cable current-carrying capacity, by the packet mode for manually providing wind power generating set.
4. marine wind electric field as claimed in claim 1 collects the site selecting method of booster stations, it is characterised in that sets wind-driven generator
Group packet count be N, is 1,2 by all wind power generating set packet numberings ... N, and with extra large cable by the wind-power electricity generation between each group
Unit connects together, as follows to the connection extra large cable label in every group of wind power generating set, rule：If there is M typhoons power hair in packet i
Group of motors, since the extra large cable that the access point of the wind power generating set is joined directly together, the extra large cable of the group is labeled as i_0, i_ successively
1 ..., i_ (M-1).
5. marine wind electric field as claimed in claim 1 collects the site selecting method of booster stations, it is characterised in that marine wind electric field electricity
The overall cost of ownership of gas system collects booster stations cost of investment, wind power generating set cost of investment, extra large cable including marine wind electric field
The aspect of cost of investment three, and the main standard using the cost of investment of extra large cable as booster stations addressing.
6. marine wind electric field as claimed in claim 5 collects the site selecting method of booster stations, it is characterised in that the investment of extra large cable into
This includes extra large cable cost, and wear and tear expenses and marine usage take, and calculation formula is：
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Wherein, NTFor total hop count of extra large cable, CinvFor the cost of every section of extra large cable, ClossFor the wear and tear expenses of extra large cable, CseaFor extra large cable
Marine usage takes.
7. marine wind electric field as claimed in claim 6 collects the site selecting method of booster stations, it is characterised in that Cinv、Closs、Csea
Calculate in the following manner respectively：
Cinv(i)=C (ci)Li；
Wherein, ciIt is the sectional area of every section of extra large cable, C (ci) for the unit price of every section of extra large cable, unit price is the function of the sectional area of extra large cable,
LiIt is the length value of every section of extra large cable；
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Wherein k be extra large cable added losses coefficient, CperFor rate for incorporation into the power network, I is the current value flowed through in extra large cable, and R joins for cable
Number, L is cable length, and τ is the equivalent loss time in year, and r is interest rate, and N is runtime year；
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Wherein kcMarine usage for every square meter takes, and d is the banding expropriation of land width of every extra large cable.
8. marine wind electric field as claimed in claim 1 collects the site selecting method of booster stations, it is characterised in that if automatically generate
Collector system wiring intersects, and the straight line that manually adjustment will appear from intersecting is replaced with broken line, and recalculates gross investment
Cost, the addressing that marine wind electric field collects booster stations no longer change.
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| CN106558886B (en) * | 2015-09-29 | 2019-03-29 | 远景能源（江苏）有限公司 | A kind of wind power plant primary system and its topological arrangement method and apparatus |
| CN106203744A (en) * | 2016-08-19 | 2016-12-07 | 中国能源建设集团广东省电力设计研究院有限公司 | The Optimization Method for Location-Selection of offshore boosting station |
| CN107609694B (en) * | 2017-09-04 | 2021-10-12 | 国网江苏省电力公司经济技术研究院 | Structure optimization method for offshore wind power cluster power transmission system and storage medium |
| CN108108871B (en) * | 2017-11-09 | 2021-07-13 | 甘肃省电力公司风电技术中心 | Type selection method for wind power plant group power transmission equipment |
| CN108053060B (en) * | 2017-12-07 | 2023-05-26 | 北京天润新能投资有限公司 | Booster station site selection system and site selection method based on automatic road line selection in wind power plant |
| CN110416925B (en) * | 2019-07-12 | 2021-07-20 | 上海电机学院 | Submarine cable wiring design method for offshore wind power |
| WO2021128223A1 (en) * | 2019-12-26 | 2021-07-01 | 上海电气风电集团股份有限公司 | Wind farm layout optimization method and optimization system, and computer readable storage medium |
| CN111030179B (en) * | 2019-12-26 | 2023-08-25 | 上海电气风电集团股份有限公司 | Optimization method, optimization system and computer readable storage medium for wind farm layout |
| CN116976153B (en) * | 2023-09-25 | 2024-03-22 | 电子科技大学中山学院 | Marine wind farm booster station site selection method based on integrated model |
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