CN104268368B - Optimal construction method of photovoltaic power station - Google Patents
Optimal construction method of photovoltaic power station Download PDFInfo
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- CN104268368B CN104268368B CN201410419972.4A CN201410419972A CN104268368B CN 104268368 B CN104268368 B CN 104268368B CN 201410419972 A CN201410419972 A CN 201410419972A CN 104268368 B CN104268368 B CN 104268368B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention belongs to the field of photovoltaic power station design and particularly relates to an optimal construction method of a photovoltaic power station. The optimal construction method includes the steps of 1, laying out photovoltaic component sets in an area; 2, setting positions of an inverter and a combiner box, grouping the photovoltaic component sets and calculating required cable number; 3, comparing the calculating results to acquire an inverter and combiner box distribution manner employing fewest cables; 4, arranging the inverter and the combiner box according to the distribution manner with the fewest cables and laying the cables. The optimal construction method is easy to operate and rapid to implement, total cost of first level cables, second level cables and a monitoring cable which are laid in each megawatt area is optimized, and construction cost is greatly lowered.
Description
Technical field
The invention belongs to design of photovoltaic power station field, and in particular to a kind of photovoltaic plant optimized construction method.
Background technology
With the high speed development of global economy, global environment becomes more and more severe with weather.How economy and society carried out
The sustainable development of meeting becomes the important topic that the whole mankind faces, and energy problem is one of of paramount importance problem.The sun
Can with it is inexhaustible, nexhaustible, be available anywhere, power supply nearby, operating cost is low, be hardly damaged, safeguards simple, thing pollute,
The advantages of construction period is short, have become technology relative maturity, development of exploitation level in new energy field it is higher, with commercialization
One of novel energy of development condition.At present China is encouraging energetically the use and conversion of solar energy, various solar power stations
Project starts to build one after another.In photovoltaic plant construction project, not clear and definite standard guidance Project design and construction at present,
This also causes in design of photovoltaic power station, and anthropic factor affects larger, and different designers are designed to same photovoltaic plant
When, cost also likely to be present larger difference.
In actual photovoltaic plant is built, once the shaped area in power station delimited, the capacity of photovoltaic plant is just able to really
Fixed, the equipment consumption of photovoltaic plant also determines substantially, and uniquely cannot be it is confirmed that the cable usage amount in Process of Confluence at different levels.
During existing photovoltaic plant is built, the connection design of the multistage cable that confluxes does not have clear and definite guidance standard, for doab
Delimitation is purely carried out by personal experience, therefore there is problems with：
1) photovoltaic plant landform is random：Photovoltaic plant region is often very random, into irregular polygonized structure.It is general and
Speech, photovoltaic plant region can carry out being divided into multiple subregions according to capacity according to 1 megawatts capacity, and each subregion is exactly one two grades
Doab, is made up of polylith photovoltaic group string, and multiple photovoltaic group strings constitute an one-level doab.In each two grades of doab
The division of one-level doab, the position of two grades of inverters for confluxing of position one-level of the header box of one-level doab directly affects
Cable length.
2) the multistage cable cost that confluxes of photovoltaic plant is different：Photovoltaic plant is multistage bus structure, and conflux cable per one-level
And the cost of monitoring cable is differed.
The problems referred to above can cause designer to be difficult to determine how the Division that carries out confluxing can just ensure that construction cost
It is optimum.
The content of the invention
The purpose of the present invention is exactly to solve the deficiency that above-mentioned background technology is present, there is provided a kind of construction cost optimum
Photovoltaic plant optimized construction method,
The technical solution used in the present invention is：A kind of photovoltaic plant optimized construction method, comprises the following steps：
(1), it is covered with photovoltaic group string in the construction area of photovoltaic plant, determines the coordinate figure of all photovoltaic group strings, and will
All coordinate figures recorded in two-dimensional matrix；
(2) position of inverter, is set, all photovoltaic group strings in region is grouped, by adjacent multiple photovoltaics
Group string is divided into a photovoltaic subregion, until the packet of all photovoltaic group strings is finished, then sets confluxing in each photovoltaic subregion
The position of case, calculates the consumption of the required cable used under this inverter-header box location schemes；
(3), change inverter position and each photovoltaic subregion in header box position, calculate change after inversion
The required cable consumption used under device-header box location schemes；
(4), the consumption of the use cable calculated under above-mentioned all schemes is compared, one kind is obtained and is always used using cable
Amount minimum inverter, header box arrangement；
(5), inverter and header box, laying electricity are laid according to the minimum arrangement construction of the use cable consumption for calculating
Cable.
Further, the method for arranging of the photovoltaic group string is：
(1), from top to bottom, from left to right start successively to arrange photovoltaic group string in region；
(2) one's own profession arrangement, is terminated after right margin is encountered, until whole region is covered with photovoltaic group string.
Further, group technology is carried out to all photovoltaic group strings in region as follows：
(1) position of inverter, is set, using the position of the inverter as the center of two-dimensional matrix；
(2), find the farthest photovoltaic group string in distance center position, by the photovoltaic group string and apart from the photovoltaic group string periphery most
Near multiple photovoltaic group strings are divided into the first photovoltaic subregion；
(3), next photovoltaic subregion is divided：
(3.1) the farthest photovoltaic group string in current distance regional center position is found, and using the photovoltaic group string as reference block；
(3.2) whether judgment standard block has been divided in other photovoltaic subregions, if not new photovoltaic subregion is then included into, and
Into step (3.3), reference block and return to step (3.1) are otherwise abandoned；
(3.3) whether enough the number of photovoltaic group string in new photovoltaic subregion is judged, if then entering step (4), otherwise
Return to step (3.1)；
(4), judge whether all of photovoltaic group string all completes subregion in two-dimensional matrix, if not completing, repeat step
(3), otherwise terminate.
Further, the number of the photovoltaic group string in described each photovoltaic subregion is 10 or 16.
Further, it is described laying cable include laying one-level conflux cable, two grades conflux cable and monitoring cables, institute
It is to connect the cable between photovoltaic group string and header box to state the one-level cable that confluxes, described two grades conflux cable for connection header box and
Cable between inverter, the monitoring cable is the cable between each header box in all photovoltaic subregions of concatenation.
Power Plant Design construction method of the present invention is by being regularly grouped to photovoltaic group string, being changed inverter step by step
With header box position, the consumption of the required cable used under different grouping, inverter and header box arrangement is calculated respectively, obtain
To a kind of total consumption of use cable minimum inverter, header box arrangement.Entered by personal experience with existing photovoltaic plant
Row design is compared, it is simple to operate, realize it is quick, ensure that lay in every megawatt of region one-level cable, two grades of cables and
The totle drilling cost of monitoring cable is optimal, and greatlys save construction cost.
Description of the drawings
Fig. 1 is the area schematic that the present invention need to arrange photovoltaic group string.
Fig. 2 is a kind of schematic diagram that photovoltaic group string of the present invention is grouped.
Fig. 3 is the arrangement and method for construction schematic diagram of present invention optimization.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail with specific embodiment, is easy to be well understood to this
It is bright, but they do not constitute restriction to the present invention.
A kind of photovoltaic plant optimized construction method, comprises the following steps：
(1) construction area of photovoltaic plant, is determined, the present embodiment is by taking 1 megawatt of photovoltaic plant region of a reality as an example
Illustrate, as shown in figure 1, being covered with photovoltaic group string in 1 megawatt of photovoltaic region, 1 photovoltaic group string is by 20 pieces of photovoltaic module groups
Into, determine the coordinate figure of all photovoltaic group strings, and all coordinate figures recorded in two-dimensional matrix.
The concrete grammar for being covered with photovoltaic group string in 1 megawatt of region is as follows：
(1.1) construction area topography is imported；
(1.2) from left to right, the topography is scanned from top to bottom, obtains most upper left end points S；
(1.3) S coordinates are obtained, is detected whether while reach lower boundary and right margin, terminate to arrange photovoltaic if reaching
Group string, otherwise into step (1.4)；
(1.4) start to arrange photovoltaic group string to the right, often detect after one photovoltaic group string of arrangement and once whether reach right margin,
Continue to arrange if not reaching, one's own profession arrangement is terminated if right margin is reached, and into step (1.5)；
(1.5) change a line, obtain new end points S coordinates, and into step (1.3).
(2) position of inverter, is set in two-dimensional matrix, and all photovoltaic group strings is grouped：Will be adjacent many
Individual photovoltaic group string is divided into a photovoltaic subregion, until the packet of all photovoltaic group strings is finished, the photovoltaic in most of photovoltaic subregions
The number of group string is 16, because the photovoltaic group string number arranged in 1 megawatt of photovoltaic region is not 16 integral multiple, therefore is also had
Photovoltaic group string number in several photovoltaic subregions is less than 16, there is the photovoltaic group string quantity in two photovoltaic subregions in the present embodiment
For 10, the quantity of the photovoltaic subregion of division is 14；
As shown in Fig. 2 the concrete grammar being grouped to all photovoltaic group strings in region is as follows：
(2.1) position of inverter, is set, the restrictive condition that can be only placed at roadside according to inverter sets the position of inverter
Put, therefore inverter can only be arranged on the side of road edge 3 as shown in Figure 2, that is to say, that positioned at road edge each
Position can be used as the position of inverter.Below as a example by inverter to be arranged on such as 4 positions in Fig. 2：4 positions in setting figure
For the position of inverter 1, and using the position as two-dimensional matrix center；
(2.2), the first photovoltaic subregion 6 is divided：Find the farthest photovoltaic group string 5 in distance center position, " farthest photovoltaic group
String " determines according to photovoltaic group string coordinate figure in two-dimensional matrix, by the photovoltaic group string 5 and apart from the photovoltaic group string periphery it is nearest 15
Individual photovoltaic group string is divided into the first photovoltaic subregion 6, and all photovoltaic group strings being divided in the first photovoltaic subregion are marked；
(2.3), the second photovoltaic subregion 7 is divided：
(2.3.1) the farthest photovoltaic group string 5 in current distance center is found, and using the photovoltaic group string as reference block,
Wherein " current " refers to the moment divided after the first photovoltaic subregion 6；
(2.3.2) whether judgment standard block has been divided in the first photovoltaic subregion 6, criterion according to its whether labelling,
Now apparent photovoltaic group string 5 has been divided in the first photovoltaic subregion 6, then abandons the photovoltaic group string 5, reselects distance
The farthest photovoltaic group string 8 in center 4, judges again, until the farthest photovoltaic group string 9 in distance center position that selects is not the
In one photovoltaic subregion 6, then the second photovoltaic subregion 7 is classified to, and into next step (2.3.3),
(2.3.3) whether enough the number of photovoltaic group string in the second photovoltaic subregion 7 is judged, now in the second photovoltaic subregion 7
Photovoltaic group string number only one of which, hence it is evident that not enough, then return to step (2.3.1) continues to be selected to be divided into the second light
The photovoltaic group string of volt subregion 8, until the photovoltaic group string number in the second photovoltaic subregion reaches 16, into step (2.4)；
(2.4), judge that whether all of photovoltaic group string all completes subregion in two-dimensional matrix, has now only divided first
The photovoltaic subregion 7 of photovoltaic subregion 6 and second, subregion is not completed, and must continue to divide the photovoltaic of the 3rd photovoltaic subregion 10 ... the 14th point
Area 11, divide the 3rd photovoltaic subregion 10 to the step of the 14th photovoltaic subregion 11 with division the second photovoltaic subregion 7 the step of 2.3 phases
Together.
All photovoltaic group strings all complete after subregion is grouped and finishes, to set each photovoltaic subregion corresponding with inverter position
The position of interior header box, calculates the consumption of the required cable used under this inverter-header box location schemes, cable consumption
Calculating mainly calculated by computer, it is also possible to artificial to calculate, the consumption of cable refers mainly to the weight of cable.
(3) cable cost optimization：
(3.1) a kind of arrangement and method for construction obtained according to step (2) packet, calculates the use of the required cable used under the program
Amount；
(3.2) keep that inverter position is constant, packet mode is constant, change the position of the header box in each photovoltaic subregion
Put, form new different arrangement and method for construction, the consumption of the cable used needed for new arrangement and method for construction is calculated respectively；
(3.3) keep inverter position constant, packet is re-started to it, confluxing in different grouping is reset respectively
The position of case, forms new different arrangement and method for construction, and the consumption of the cable used needed for new arrangement and method for construction is calculated respectively；
(3.4) position of inverter is changed, return to step (2) carries out successively subsequent step, until inverter cannot be changed
Position till.
(3.5) the cable consumption used needed for respectively calculating under various different arrangement and method for construction is contrasted, and obtains institute
Using inverter, the header box arrangement that the total consumption of cable is minimum in the 1MWp photovoltaic generations region for showing, as shown in Figure 3.
(4), inverter and header box, laying are laid according to the minimum arrangement construction of the total consumption of use cable for calculating
Cable, laying cable include laying one-level conflux cable, two grades conflux cable and monitoring cables, the one-level conflux cable for connect
The cable between photovoltaic group string and header box is connect, two grades of cables that conflux are to connect the cable between header box and inverter,
The monitoring cable is the cable between each header box in all photovoltaic subregions of concatenation.
The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (4)
1. a kind of photovoltaic plant optimized construction method, it is characterised in that comprise the following steps：
(1), it is covered with photovoltaic group string in the construction area of photovoltaic plant, determines the coordinate figure of all photovoltaic group strings, and will be all
Coordinate figure recorded in two-dimensional matrix；
(2) position of inverter, is set, all photovoltaic group strings in region is grouped, by adjacent multiple photovoltaic group strings
A photovoltaic subregion is divided into, until the packet of all photovoltaic group strings is finished, header box in each photovoltaic subregion is then set
Position, calculates the consumption of the required cable used under this inverter-header box location schemes；
It is as follows that all photovoltaic group strings in region carry out group technology：
(2.1) position of inverter, is set, using the position of the inverter as the center of two-dimensional matrix；
(2.2) the farthest photovoltaic group string in distance center position, is found, by the photovoltaic group string and nearest apart from the photovoltaic group string periphery
Multiple photovoltaic group strings be divided into the first photovoltaic subregion；
(2.3), next photovoltaic subregion is divided：
(2.3.1) the farthest photovoltaic group string in current distance regional center position is found, and using the photovoltaic group string as reference block；
(2.3.2) whether judgment standard block has been divided in other photovoltaic subregions, if not being then included into new photovoltaic subregion, goes forward side by side
Enter step (2.3.3), otherwise abandon reference block and return to step (2.3.1)；
(2.3.3) whether enough the number of photovoltaic group string in new photovoltaic subregion is judged, if then entering step (2.4), otherwise
Return to step (2.3.1)；
(2.4), judge whether all of photovoltaic group string all completes subregion in two-dimensional matrix, if not completing, repeat step
(2.3), otherwise terminate；
(3), change inverter position and each photovoltaic subregion in header box position, calculate change after inverter-remittance
The consumption of the required cable used under stream case location schemes；Concretely comprise the following steps：
(3.1) a kind of arrangement and method for construction obtained according to step (2) packet, calculates the consumption of the required cable used under the program；
(3.2) keep that inverter position is constant, packet mode is constant, change the position of the header box in each photovoltaic subregion, shape
The different arrangement and method for construction of Cheng Xin, calculates respectively the consumption of the cable used needed for new arrangement and method for construction；
(3.3) keep inverter position constant, packet is re-started to it, header box in different grouping is reset respectively
Position, forms new different arrangement and method for construction, and the consumption of the cable used needed for new arrangement and method for construction is calculated respectively；
(3.4) position of inverter is changed, return to step (2) carries out successively subsequent step, until the position of inverter cannot be changed
It is set to only；
(4), the consumption of the use cable calculated under above-mentioned all schemes is compared, one kind is obtained and is used the total consumption of cable most
Few inverter, header box arrangement；
(5), inverter and header box, laying electricity are laid according to the minimum arrangement construction of the total consumption of use cable for calculating
Cable.
2. a kind of photovoltaic plant optimized construction method according to claim 1, it is characterised in that light in the step (1)
The method for arranging of volt group string is：
(1), from top to bottom, from left to right start successively to arrange photovoltaic group string in region；
(2) one's own profession arrangement, is terminated after right side roadside circle is encountered, until whole region is covered with photovoltaic group string.
3. a kind of photovoltaic plant optimized construction method according to claim 1, it is characterised in that：In each photovoltaic subregion
The number of photovoltaic group string is 10 or 16.
4. a kind of photovoltaic plant optimized construction method according to claim 1, it is characterised in that：Need in the step (2)
The cable used including one-level conflux cable, two grades conflux cable and monitoring cables, the one-level conflux cable for connection photovoltaic
Cable between group string and header box, two grades of cables that conflux are to connect the cable between header box and inverter, the prison
Electric control cable is the cable between each header box in all photovoltaic subregions of concatenation.
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| CN106099770B (en) * | 2016-08-29 | 2018-01-19 | 中国一冶集团有限公司 | Large-sized photovoltaic power generation project PV cable laying methods |
| CN106446399B (en) * | 2016-09-20 | 2019-06-28 | 协鑫能源工程有限公司 | Cable layout method and terminal device for Cable layout |
| CN106557650A (en) * | 2016-10-21 | 2017-04-05 | 许继集团有限公司 | A kind of photovoltaic plant device layout method |
| CN107423501B (en) * | 2017-07-17 | 2020-05-19 | 南京邮电大学 | Array automatic detection and numbering method based on photovoltaic power station logic diagram |
| CN108964114B (en) * | 2018-05-24 | 2020-06-16 | 国核电力规划设计研究院有限公司 | Photovoltaic electric field header box arrangement method and device |
| CN108649607B (en) * | 2018-05-30 | 2020-04-24 | 国核电力规划设计研究院有限公司 | Method and device for determining photovoltaic electric field access scheme |
| CN109246236A (en) * | 2018-10-09 | 2019-01-18 | 安徽大恒能源科技有限公司 | A kind of method for arranging of commercial style photovoltaic plant |
| CN110266055B (en) * | 2019-07-31 | 2021-09-14 | 合肥阳光新能源科技有限公司 | Photovoltaic power station arrangement method and device and photovoltaic power station |
| CN110826800B (en) * | 2019-11-05 | 2023-02-07 | 阳光新能源开发股份有限公司 | Photovoltaic power station layout method and device |
| CN110829427B (en) | 2019-11-26 | 2023-09-26 | 远景智能国际私人投资有限公司 | String connection method, device and equipment of photovoltaic module and storage medium |
| CN111371402B (en) * | 2019-12-31 | 2023-08-04 | 远景智能国际私人投资有限公司 | Layout method, device and equipment of converging equipment in photovoltaic power station and storage medium |
| CN111581701B (en) * | 2020-05-10 | 2023-08-08 | 常州安太光伏科技有限公司 | BIM-based photovoltaic power station automatic arrangement method |
| CN112287529B (en) * | 2020-10-19 | 2024-05-14 | 阳光新能源开发股份有限公司 | Automatic arrangement method for photovoltaic array and automatic arrangement method for photovoltaic power station |
| CN112906985A (en) * | 2021-03-25 | 2021-06-04 | 阳光新能源开发有限公司 | Method and device for dividing sub-regions of photovoltaic power station and new energy power generation system |
| CN116595696B (en) * | 2023-05-31 | 2024-04-09 | 四川省建筑设计研究院有限公司 | Photovoltaic outer elevation electrical design method and system |
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| US8378921B2 (en) * | 2008-08-28 | 2013-02-19 | The Boeing Company | Broadband multi-tap antenna |
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Address after: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Patentee after: POWERCHINA HUBEI ELECTRIC ENGINEERING Corp.,Ltd. Address before: 430040 Dongxihu, Wuhan, Hubei, No. 1, new bridge four, Jin Yin Hu Street. Patentee before: HUBEI ELECTRIC POWER SURVEY & DESIGN INSTITUTE |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Patentee after: Hubei Electric Power Planning, Design and Research Institute Co.,Ltd. Address before: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Patentee before: POWERCHINA HUBEI ELECTRIC ENGINEERING Corp.,Ltd. |