CN108649607A - The determination method and apparatus of photovoltaic DC field access scheme - Google Patents
The determination method and apparatus of photovoltaic DC field access scheme Download PDFInfo
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- CN108649607A CN108649607A CN201810537227.8A CN201810537227A CN108649607A CN 108649607 A CN108649607 A CN 108649607A CN 201810537227 A CN201810537227 A CN 201810537227A CN 108649607 A CN108649607 A CN 108649607A
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Abstract
The application belongs to technical field of photovoltaic power generation, and in particular to a kind of determination method and apparatus of photovoltaic DC field access scheme.This method does not determine the header box of access scheme to the access distance of each inversion box by obtaining, the each access distance of traversal from small to large, when being currently accessed apart from corresponding inversion box with access interface, determination, which will be currently accessed, to be connected apart from corresponding header box with inversion box, and the access interface number of the inversion box is subtracted one, and the corresponding remaining access distance of the header box is made not to be traversed；Or, determine be currently accessed apart from corresponding header box be not linked into any inversion box and be currently accessed apart from corresponding inversion box have access interface when, determination, which will be currently accessed, to be connected apart from corresponding header box with inversion box, and the access interface number of the inversion box is subtracted one, the time used in design photovoltaic DC field access scheme can be reduced while ensureing that number of cables used in all header box access inversion boxes is minimum.
Description
Technical field
The application belongs to technical field of photovoltaic power generation, and in particular to a kind of the determination method and dress of photovoltaic DC field access scheme
It sets.
Background technology
The direct current that component string in photovoltaic DC field generates is changed into alternating current, is needed the group in photovoltaic DC field first
Header box is accessed after the grouping of part string, then header box is accessed after inversion box, direct current is changed into alternating current by inversion box.One
Often there are hundreds of header boxs in photovoltaic DC field, and the number of inversion box only has dozens of, and these header boxs and inversion box
It is often irregularly distributed in photovoltaic place.
In the prior art, header box is accessed into the method for inversion box mainly on drawing or in mapping software by artificial right
Header box carries out trying to gather grouping, but since the confluence box number in photovoltaic DC field is more, and if occurs place in design process
It then needs to be grouped again when boundary changes or header box position is caused to change for mounting condition variation in place, so as to cause
The workload being manually grouped is very huge.
Invention content
In view of this, the embodiment of the present application provides a kind of determination method and apparatus of photovoltaic DC field access scheme, the party
Method compared with prior art in artificial group technology artificial duration can be greatly reduced.Its technical solution is as follows：
In a first aspect, providing a kind of determination method of photovoltaic DC field access scheme, this method includes：
Obtaining each header box in photovoltaic DC field, to the access distance of each inversion box, which is not determine access side
The header box of case；
Access distance is traversed according to sequence from small to large, is being currently accessed the confluence apart from corresponding inversion box
When case accesses number less than predetermined access number, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed apart from corresponding
Inversion box, and the header box access number for being currently accessed apart from corresponding inversion box is added one, and it is corresponding to make to be currently accessed distance
Header box corresponding to remaining access distance be not traversed；Alternatively, not having apart from corresponding header box determining to be currently accessed
Have when being linked into any inversion box and being currently accessed header box access number apart from corresponding inversion box less than predetermined access number,
Determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed apart from corresponding inversion box, and will be currently accessed distance
The header box access number of corresponding inversion box adds one.
In one possible implementation, obtain each header box in photovoltaic DC field to each inversion box access away from
From before or after, the numerical value of predetermined access number is set.
In one possible implementation, access distance of each header box to each inversion box in acquisition photovoltaic DC field
Including：The position coordinates for obtaining each header box and each inversion box in photovoltaic DC field obtain each confluence according to position coordinates
Access distance of the case to each inversion box.
In one possible implementation, this method further includes：It is shown in photovoltaic DC field in the form of schematic three dimensional views
The position of header box and inversion box；The connection type of header box and inversion box is shown in the form of schematic three dimensional views.
Second aspect, provides a kind of determining device of photovoltaic DC field access scheme, which includes：
Acquisition module is configured as obtaining in photovoltaic DC field each header box to the access distance of each inversion box, the remittance
It is the header box for not determining access scheme to flow case；
Spider module is configured as traversing access distance according to sequence from small to large；
Determining module is configured as being currently accessed the header box access number apart from corresponding inversion box less than predetermined access
When number, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed apart from corresponding inversion box, and make currently to connect
Enter the distance of the remaining access corresponding to the corresponding header box not to be traversed；Alternatively, determining that being currently accessed distance corresponds to
Header box be not linked into any inversion box and be currently accessed header box access number apart from corresponding inversion box less than pre-
When accessing number surely, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed apart from corresponding inversion box；
Computing module is configured as being currently accessed apart from right when determination will be currently accessed to be linked into apart from corresponding header box
After the inversion box answered, by be currently accessed apart from corresponding inversion box header box access number add one.
In one possible implementation, which further includes setup module, is configured as obtaining in photovoltaic DC field
Before or after each header box to the access distance of each inversion box, the numerical value of predetermined access number is set.
In one possible implementation, acquisition module includes：
First acquisition submodule is configured as obtaining the position of each header box and each inversion box in photovoltaic DC field and sits
Mark；
Second acquisition submodule, be configured as according to position coordinates obtain each header box to each inversion box access away from
From.
In one possible implementation, which further includes display module, is configured as the shape with schematic three dimensional views
Formula shows the position of header box and inversion box in photovoltaic DC field；Header box and inversion box are shown in the form of schematic three dimensional views
Connection type.
The third aspect, provides a kind of computer equipment, including processor and memory, memory storage there are one or
The more than one program of person, the one or more program are used by the processor to execute photovoltaic DC field access as described above
The determination method of scheme.
Fourth aspect provides a kind of computer-readable medium, the computer-readable medium storage there are one or one with
On program, this or more than one program are used by the processor to execute photovoltaic DC field access scheme as described above
Determine method.
The advantageous effect that technical solution provided by the embodiments of the present application is brought includes at least：
By obtain photovoltaic DC field in do not determine connection scheme header box to each inversion box access distance, according to from
It is small that access distance is traversed to big sequence, the header box access number apart from corresponding inversion box is being currently accessed less than pre-
When accessing number surely, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed apart from corresponding inversion box, and will
It is currently accessed the access number of the header box apart from corresponding inversion box and adds one, and make to be currently accessed corresponding to the corresponding header box
Remaining access distance be not traversed；Alternatively, determine be currently accessed be not linked into apart from corresponding header box it is any
Inversion box and when being currently accessed header box access number apart from corresponding inversion box less than predetermined access number, determination will be currently accessed
It is linked into and is currently accessed apart from corresponding inversion box apart from corresponding header box, and will be currently accessed apart from corresponding inversion box
Header box access number adds one, can ensure minimum same of number of cables used in all header boxs access inversion boxes in photovoltaic DC field
When, the time used in header box and the access scheme of inversion box in design photovoltaic DC field is reduced, and be by changing parameter preset
Can rapid response engineering variation to prevent delayed works.
Description of the drawings
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present application, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the flow chart of the determination method for the photovoltaic DC field access scheme that the application first embodiment provides；
Fig. 2 illustrates the schematic three dimensional views of header box and inversion box position in a kind of photovoltaic DC field；
Fig. 3 is the first implementation method of the determination method for the photovoltaic DC field access scheme that the application second embodiment provides
Flow chart；
Fig. 4 is second of implementation method of the determination method for the photovoltaic DC field access scheme that the application second embodiment provides
Flow chart；
Fig. 5 is the third implementation method of the determination method for the photovoltaic DC field access scheme that the application second embodiment provides
Flow chart；
Fig. 6 is the flow chart of the determining device for the photovoltaic DC field access scheme that the application 3rd embodiment provides.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the application clearer, below in conjunction with attached drawing to the application embodiment party
Formula is described in further detail.
In a kind of exemplary implementation environment of the application, when using solar energy for power generation, due in photovoltaic DC field
Direct current caused by component string generally can not be used directly, so generally require to be generated these component strings with inversion box
Direct current is changed into alternating current.Due to being usually disposed with thousands of component string in large and medium-sized photovoltaic DC field, and inversion box
Interface quantity is also limited, and a large amount of cable and inversion box are needed if all component strings are all directly connected with inversion box,
Occupation area of equipment increase is not only resulted in, can make that the production cost increases and is not easy to daily management yet.So in large and medium-sized photovoltaic
In electric field, generally requires to carry out level-one confluence to the input of component string using header box, header box is then accessed into inversion box again
To reduce the dosage of photovoltaic cable.
In the related art, due to the factors such as the limitation of irregular and mounting condition of photovoltaic DC field site condition, confluence
Case and inversion box can be all irregularly distributed in photovoltaic place.Irregular row due to header box and inversion box in photovoltaic place
Cloth, when making hundreds of header boxs access to dozens of inversion box by being manually grouped, workload is huge, needs to try to gather repeatedly point
Group scheme；And if mounting condition variation in the change of place boundary or place occurs in the design process leads to header box and inversion
When case position change, it is necessary to access scheme is planned again, and manual method tends not to quickly respond to engineering variation, is easy
Cause construction delay.It can be seen that solve the above-mentioned problems, need it is a kind of can be under the premise of ensureing constructing aims quickly really
The method for determining header box and the access scheme of inversion box.
The application first embodiment provides a kind of determination method of photovoltaic DC field access scheme, as shown in Figure 1, this method
Including：
Step S11, obtaining each header box in photovoltaic DC field, to the access distance of each inversion box, which is not true
Determine the header box of access scheme；
Step S12 traverses access distance according to sequence from small to large, is being currently accessed apart from corresponding inversion
When the header box access number of case is less than predetermined access number, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed
Add one apart from corresponding inversion box, and by the header box access number for being currently accessed apart from corresponding inversion box, and makes to be currently accessed
Remaining access distance corresponding to corresponding header box is not traversed；Alternatively, being currently accessed apart from corresponding in determination
Header box is not linked into any inversion box and the header box being currently accessed apart from corresponding inversion box accesses number less than predetermined
When accessing number, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed apart from corresponding inversion box, and will work as
Header box access number of the preceding access apart from corresponding inversion box adds one.
In one possible implementation, obtain each header box in photovoltaic DC field to each inversion box access away from
From before or after, the numerical value of predetermined access number is set.
In one possible implementation, access distance of each header box to each inversion box in acquisition photovoltaic DC field
Including：The position coordinates for obtaining each header box and each inversion box in photovoltaic DC field obtain each confluence according to position coordinates
Access distance of the case to each inversion box.
In one possible implementation, this method further includes：It is shown in photovoltaic DC field in the form of schematic three dimensional views
The position of header box and inversion box；The connection type of header box and inversion box is shown in the form of schematic three dimensional views.
The determination method of photovoltaic DC field access scheme provided in this embodiment does not determine connection by obtaining in photovoltaic DC field
The header box of scheme traverses access distance according to sequence from small to large, is working as to the access distance of each inversion box
When header box access number of the preceding access apart from corresponding inversion box is less than predetermined access number, determination will be currently accessed apart from corresponding
Header box, which is linked into, to be currently accessed apart from corresponding inversion box, and will be currently accessed header box apart from corresponding inversion box and accessed
Number plus one, and make to be currently accessed the remaining access distance corresponding to the corresponding header box and be not traversed；Alternatively, in determination
It is currently accessed the remittance for not being linked into any inversion box apart from corresponding header box and being currently accessed apart from corresponding inversion box
When flowing case access number less than predetermined access number, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed apart from right
The inversion box answered, and by be currently accessed apart from corresponding inversion box header box access number add one, it is ensured that in photovoltaic DC field
While number of cables used in all header boxs access inversion boxes is minimum, header box and inversion box in design photovoltaic DC field are reduced
Time used in access scheme, and by change parameter preset can rapid response engineering variation to prevent delayed works.
The application second embodiment provides a kind of determination method of photovoltaic DC field access scheme, as seen in figures 3-6, the party
Method includes：
Step S21 is obtained and is not determined the header box of access scheme to the access distance of each inversion box in photovoltaic DC field.
In order to determine that header box in photovoltaic DC field is linked into the most suitable cut-in method of inversion box, photovoltaic can be first obtained
In electric field each header box to each inversion box access distance, and by all one access distance sets of access distance composition
It closes, header box all in photovoltaic DC field is the header box of not determining access scheme at this time.In the set, each access
Distance has all corresponded to a header box and an inversion box, and each access distance represents a remittance in photovoltaic DC field
The access combination for flowing case and an inversion box, that is, represent the possibility connection type of a header box and an inversion box.
In one possible implementation, in order to facilitate each header box in acquisition photovoltaic DC field to each inversion box
Distance is accessed, the position of each header box and each inversion box in photovoltaic DC field can be first obtained, then again by each
Access distance of each header box to each inversion box in header box and the position of each inversion box acquisition photovoltaic DC field.It lifts
Can be the satellite for first obtaining the photovoltaic DC field when obtaining the position of each header box and each inversion box for example
Then image identifies the position of each header box and each inversion box from the satellite image again；Alternatively, can also profit
The position of each header box and each inversion box is obtained with GPS positioning system；Alternatively, can also be according to the photovoltaic DC field
Design drawing obtains the position of each header box and each inversion box.Getting each header box and each inversion box
Position after, can be with schematic three dimensional views in order to more clearly indicate the position relationship of each header box and each inversion box
Form shows the position of each header box and each inversion box, as shown in Figure 2.In addition, the arrangement of each header box and each inversion box
Position can be indicated by the form of position coordinates, such as longitude and latitude；Alternatively, a ginseng can also be arranged in the photovoltaic DC field
According to object, then according to each header box of relatively geographical location determination of each header box and each inversion box and the object of reference and often
The position coordinates of a inversion box.It, can be by all remittances after the position coordinates for getting each header box and each inversion box
Stream case and inversion box be plotted in a plane coordinate system, may then pass through the distance between 2 points calculation formula obtain it is each
Access distance between header box and each inversion box.
Step S22 traverses access distance according to sequence from small to large, is being currently accessed apart from corresponding inversion
When the header box access number of case is less than predetermined access number, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed
Add one apart from corresponding inversion box, and by the header box access number for being currently accessed apart from corresponding inversion box, and makes to be currently accessed
Remaining access distance corresponding to corresponding header box is not traversed；Alternatively, being currently accessed apart from corresponding in determination
Header box is not linked into any inversion box and the header box being currently accessed apart from corresponding inversion box accesses number less than predetermined
When accessing number, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed apart from corresponding inversion box, and will work as
Header box access number of the preceding access apart from corresponding inversion box adds one.
Getting in photovoltaic DC field after header box and the access distance set of inversion box, can be according to from small to large it is suitable
Sequence traverses each of access distance set access distance.For example, after getting access distance set, Ke Yixian
Access distance in the set is ranked up according to sequence from small to large, then again from small to large to each of in the set
Access distance is traversed.During being traversed from small to large to each access distance, it is possible to will appear two numbers
It is worth identical access distance.In that case, can at random from two values identical access distance one access of selection away from
From first being traversed, another access distance is then traversed again.
The concrete mode for realizing the present embodiment is described below.
In the present embodiment in the first possible realization method, as shown in figure 3, this method includes：
Step 301, inversion box access interface number is set.
The access interface number of inversion box is the predetermined access number in step S22, can be by manually permitting according to inversion box
Perhaps access number is pre-set, and the number that allows to access of inversion box is the quantity that inversion box allows the header box of access.
Step 302, calculate each header box to each inversion box access distance.
At this point, all header boxs in photovoltaic DC field are the header boxs of not determining connection type.
Step 303, the minimum header box of selection access distance and inversion box access combination.
After getting access distance set by step 302, since the purpose of this method includes that header box is made to access inversion
Cable length used in case is most short, it is possible to since the access distance set shortest access distance, judge the set
In access whether can be connected with corresponding inversion box apart from corresponding header box.At this point, shortest in the access distance set
Access is exactly to be currently accessed combination apart from corresponding access combination.And so on, the header box in judging that some access is combined
Can when being connected with inversion box, access combination be exactly to be currently accessed combination.From access distance set in it is shortest access away from
The beginning is left, when judging whether the access in the set can connect apart from corresponding header box with corresponding inversion box, may be used
The method of traversal traverses each of set access distance from small to large.
Step 304, judge whether the inversion box being currently accessed in combination also has access interface.It is gone back when being currently accessed in combination
305 are entered step when having vacant access interface, is entered step when being currently accessed the when of not having vacant access interface in combination
306。
According to order traversal from small to large to access distance set in be currently accessed apart from when, can first judge to work as
Whether header box access number of the preceding access apart from corresponding inversion box first judges to be currently accessed apart from right less than predetermined access number
Whether the inversion box answered also has vacant access interface.
Step 305, when the inversion box being currently accessed in combination also has access interface, determining will be currently accessed in combination
Header box is connect with inversion box, and subtracts one by the inversion box access interface number being currently accessed in combination, and will be currently accessed combination
In the corresponding remaining access combination of header box delete.
When the inversion box being currently accessed in combination also has vacant access interface, i.e., it is currently accessed at this time inverse in combination
When becoming the header box access number of case less than predetermined access number, it is determined that the header box in combination will be currently accessed and connected with inversion box
It connects, and the vacant access interface quantity for the inversion box being currently accessed in combination is subtracted one.Wherein, it will be currently accessed inverse in combination
The vacant access interface quantity for becoming case subtracts one, and the header box of the inversion box in combination will be currently accessed by being equivalent in step S22
Access number adds one.The header box being currently accessed in combination is connect with inversion box due to having determined, that is, is had determined that current
The access scheme apart from corresponding header box is accessed, can just make the residue corresponding to the header box being currently accessed in combination at this time
Access distance be not traversed.For example, can by be currently accessed combination in header box corresponding to remaining access distance from
It is deleted in access distance set, so as to be not cycled through the remaining access distance in next ergodic process, saves work
Make the time.Wherein, the remaining access corresponding to the header box in combination is currently accessed apart from the namely header box and other
The access distance of inversion box.
Step 306, when the inversion box being currently accessed in combination does not have access interface, determination will not be currently accessed in combination
Header box connect with inversion box, and the corresponding remaining access combination of the inversion box that will be currently accessed in combination is deleted.
When the inversion box being currently accessed in combination does not have vacant access interface, i.e., it is currently accessed at this time inverse in combination
Become the header box access number of case no less than predetermined access number when, so that it may with determine the header box that will be currently accessed in combination with it is inverse
Become case connection, and the remaining access distance corresponding to the inversion box being currently accessed in combination is made not to be traversed.For example, can incite somebody to action
The remaining access distance corresponding to inversion box being currently accessed in combination is deleted from access distance set, so that following
Ergodic process in be not cycled through the remaining access distance.Wherein, it is currently accessed the residue corresponding to the inversion box in combination
Access the distance namely inversion box and other header boxs access distance.
Step 307, judge whether there be the header box for not determining connection type in photovoltaic DC field.When in photovoltaic DC field also have
303 are entered step when the header box for not determining connection type, when not having not determine the header box of connection type in photovoltaic DC field
Enter step 308.
After the header box being currently accessed in combination is connect or be not connected to inversion box by determination, that is to say currently to connect
Enter the header box in combination or the remaining access distance corresponding to inversion box after being deleted in access distance set, can sentence
Whether there is the header box for not determining access way in disconnected photovoltaic DC field, that is to say the access set acquired in judgment step 302
In whether also have remaining access distance.
When there is the header box for not determining access way in photovoltaic DC field, that is, accesses and also have remaining connect in distance set
Enter apart from when, remaining all access distances can be continued to traverse, to obtain remaining header box in the same manner
With the connection type of inversion box, you can to continue cycling through step 303 to step 307.At this point, remaining all in the distance set
Access apart from corresponding header box be not determining connection type header box.It should be noted that within step 306, true
It is fixed the header box being currently accessed in combination is not connect with inversion box after, at this time in photovoltaic DC field must residue it is at least one not
Determine the header box of access way.So after step 306, step 303 can be continued directly to step 307, no longer need to sentence
Whether the header box that does not determine connection type is also had in disconnected photovoltaic DC field.
Step 308, when not having not determining the header box of connection type in photovoltaic DC field, that is, accessing in distance set does not have
It is remaining access apart from when, export all header boxs and the access scheme of inversion box.
It is determining in photovoltaic DC field after the connection type of all header boxs and inversion box, it can be with the shape of schematic three dimensional views
Formula is shown.
It should be noted that determining in photovoltaic DC field after the connection type of all header boxs and inversion box, this time
Inversion box in volt electric field is possible to also have vacant access interface, and from engineering significance, such case is to allow to occur
's.Alternatively, if after determining the connection type of header box all in photovoltaic DC field and inversion box, it is inverse in photovoltaic DC field
Becoming case also has vacant access interface, can also reset inversion box access interface quantity, then redefine photovoltaic DC field
The connection type of interior all header boxs and inversion box, so that the remaining vacant access interface quantity of inversion box in photovoltaic DC field
It reduces or is zero.
The first possible realization method is illustrated so that first is currently accessed distance as an example, first is currently accessed distance
It is currently accessed the corresponding first access combination of distance for access distance minimum in access distance set, first.Traversing first
Be currently accessed apart from when, can first judge whether the first inversion box in the first access combination also has vacant access interface.
If the first inversion box also has vacant access interface, it is determined that by first access combination in the first header box with
First inversion box connects, and subtracts one by the access interface number of the first inversion box.At this point, due to having determined that the first header box
Access way, thus can just make corresponding to the first header box remaining access distance be not traversed, this it is remaining access away from
With a distance from access from namely the first header box and other inversion boxes.For example, can will be remaining corresponding to the first header box
Access distance is deleted from access distance set, so as to be not cycled through in next ergodic process corresponding to the first header box
Remaining access distance.
If the first inversion box does not have vacant access interface, it is assured that does not access to the first header box at this time
First inversion box, and the remaining access distance corresponding to the first inversion box is made not to be traversed, the remaining access is apart from also
It is the access distance of the first inversion box and other header boxs.For example, can by the remaining access corresponding to the first inversion box away from
It is deleted from from access distance set, so as to be not cycled through the residue corresponding to the first inversion box in next ergodic process
Access distance.
Determine will the first header box access or after not accessing the first inversion box, that is to say the first header box or first
Remaining access distance corresponding to inversion box, can be to remaining in access distance set after being deleted in access distance set
All access distances continue to traverse, and judge that remaining access is corresponding in access distance set in the same fashion
Header box whether can be linked into corresponding inversion box.
In second of possible realization method of the present embodiment, as shown in figure 4, this method includes：
Step 401, inversion box access interface number is set.
Step 402, calculate each header box to each inversion box access distance.
Step 403, the minimum header box of selection access distance and inversion box access combination.
Step 404, judge whether the header box being currently accessed in combination has been determined being linked into any inversion box.When
The header box being currently accessed in combination has been determined entering step 407 when being linked into any inversion box, when being currently accessed group
Header box in conjunction is not determined entering step 405 when being linked into any inversion box.
According to order traversal from small to large to access distance set in be currently accessed apart from when, can first judge to work as
Whether preceding access has been determined being linked into any inversion box apart from corresponding header box, i.e., first judges to be currently accessed apart from right
Whether the access scheme for the header box answered has determined.
Step 405, when the header box being currently accessed in combination is not determined being linked into any inversion box, judge to work as
Whether the inversion box in preceding access combination also has access interface.When be currently accessed combination in inversion box also have access interface when into
Enter step 406,407 are entered step when the inversion box being currently accessed in combination does not have access interface.
Step 406, it when the header box being currently accessed in combination is not determined being linked into any inversion box, and currently connects
When entering the inversion box in combination has vacant access interface, it is determined that the header box in combination will be currently accessed and connected with inversion box
It connects, that is, determines the access scheme for the header box being currently accessed in combination, and the header box that the inversion box in combination will be currently accessed
Access number adds one, i.e., subtracts one by the inversion box access interface number being currently accessed in combination.
Step 407, it determines and does not connect the header box being currently accessed in combination with inversion box
In step 404, when be currently accessed combination in header box be determined connecting with any inversion box when, then without
It need to judge whether the inversion box being currently accessed in combination also has vacant access interface again, step 407 can be directly entered at this time, i.e.,
It determines and does not connect the header box being currently accessed in combination with inversion box.
In step 405, when the header box being currently accessed in combination is not determined being linked into any inversion box, but work as
When inversion box in preceding access combination does not have access interface, step 407 is can also pass through, that is, determining will not be currently accessed in combination
Header box is connect with inversion box.
Step 408, judge to access in distance set and whether also have the access distance not being traversed.When accessing in distance set
The access not being traversed also apart from when enter step 403, when access in distance set do not have the access not being traversed apart from when
Enter step 409.
After step 406 and step 407, it can be determined that whether also have in access distance set and remaining be not traversed
Access distance, that is, judge whether the access not being traversed also combine.If at this time access distance set in also have not by time
The access distance gone through then can continue to traverse, to obtain in the same manner to remaining access distance in access distance set
Take the connection type of remaining header box and inversion box, you can to continue cycling through step 403 to step 408.
Step 410, do not have in accessing distance set the access not being traversed apart from when, export all header boxs and inversion
The access scheme of case.
It is to be appreciated that in second of possible realization method of the present embodiment, the priority of step 404 and step 405 is suitable
Sequence can adjust, you can first to judge whether the inversion box being currently accessed in combination also has access interface, be currently accessed in determination
When inversion box in combination also has access interface, then the header box that judges to be currently accessed in combination whether have already accessed to it is any inverse
Become in case.When be currently accessed combination in inversion box also have access interface, and be currently accessed combination in header box do not access
When in any inversion box, determines and connect the header box being currently accessed in combination with inversion box, and will be currently accessed in combination
Inversion box access interface number subtract one.
First, which currently connects, is further illustrated to second of possible realization method so that first is currently accessed distance as an example again
Enter distance for access distance minimum in access distance set, first is currently accessed the corresponding first access combination of distance.It is traversing
To first be currently accessed apart from when, can first judge the first access combination in the first header box whether be determined access take office
In one inversion box.When the first header box is not determined being linked into any inversion box, then judge in the first access combination
Whether the first inversion box also has vacant access interface.When the first header box is not determined being linked into any inversion box, and
When first inversion box also has vacant access interface, it is determined that the first header box is linked into the first inversion box, and inverse by first
The access interface number for becoming case subtracts one.
When the first header box is not determined being linked into any inversion box, but the first inversion box does not have vacant incoming end
When mouth, it is determined that the first header box is not linked into the first inversion box.
When the first header box has been determined connecting with some inversion box, then no longer need to judge the first inversion box whether also
There is vacant access interface, can directly determine the first header box is not linked into the first inversion box at this time.
After the first header box is connect or is not connected to the first inversion box by determination, it can be determined that in access distance set
Whether the access distance not being traversed is also had.It, can if accessing the access distance for also having in distance set and not being traversed at this time
To continue to traverse to remaining access distance in access distance set, to obtain remaining header box and inverse in the same manner
Become the connection type of case,
Do not determine that the header box of access scheme arrives in the possible realization method of above two the present embodiment, in photovoltaic DC field
The access distance of each inversion box only calculates primary, is connect the header box being currently accessed in combination with inversion box or not determining
After connection, the corresponding remaining access distance of the header box or inversion box is deleted, can be prevented to having determined that access side
The repetition of the inversion box of the header box of case or not access interface traverses；Alternatively, the remittance in combination will be currently accessed determining
Stream case connect or is not connected to inversion box after, traverse access distance set in remaining access distance, and be currently accessed away from
It is not linked into after any inversion box from corresponding header box and judges whether it can connect with corresponding inversion box, it can be to avoid
Repeat the access scheme of determining header box.It will be understood by those skilled in the art that in order to prevent to having determined that the remittance of access scheme
The repetition traversal of case is flowed, can also determine access scheme and then the secondary calculating light being currently accessed apart from corresponding header box
Lie prostrate electric field in do not determine access scheme header box arrive each inversion box access distance, then again traversal obtained by access away from
From with the access scheme of the remaining header box of determination, such as the present embodiment shown in the third possible realization method.
In the present embodiment in the third possible realization method, as shown in figure 5, this method includes：
Step 501, inversion box access interface number is set.
Step 502, it calculates and does not determine each header box of connection type to the access distance of each inversion box.
Step 503, the minimum header box of selection access distance and inversion box access combination.
Step 504, judge whether the inversion box being currently accessed in combination also has access interface.When be currently accessed combination in
Inversion box enters step 505 when also having access interface, enters step when the inversion box being currently accessed in combination does not have access interface
Rapid 506.
Step 505, when the inversion box being currently accessed in combination also has access interface, determining will be currently accessed in combination
Header box is connect with inversion box, and subtracts one by the inversion box access interface number being currently accessed in combination.
Step 506, when the inversion box being currently accessed in combination does not have access interface, determination will not be currently accessed in combination
Header box connect with inversion box, and the corresponding remaining access combination of the inversion box that will be currently accessed in combination is deleted.At this point, can
It is further continued for carrying out step 503, to obtain the connection type of remaining header box and inversion box.
Step 507, after the header box being currently accessed in combination is connect by determination with inversion box, judge in photovoltaic DC field
Whether the header box that does not determine connection type is also had.Enter step when there is the header box for not determining connection type in photovoltaic DC field
Rapid 502, enter step 508 when there is no the when of not determining the header box of connection type in photovoltaic DC field.
If also having the header box for not determining connection type in photovoltaic DC field, in order to make to be currently accessed apart from corresponding header box
Corresponding remaining access distance is not traversed, and can calculate the remaining header box for not determining access way in photovoltaic DC field
To the access distance of each inversion box, then the access distance being calculated is traversed from small to large again, i.e., cycle walks again
Rapid 503 to step 507, to obtain the connection type of remaining header box and inversion box.
Step 508, when not having not determining the header box of connection type in photovoltaic DC field, all header boxs and inversion are exported
The access scheme of case.
The determination method of photovoltaic DC field access scheme provided in this embodiment is not determined by all in acquisition photovoltaic DC field
The header box of access scheme traverses acquired each access distance to the access distance of each inversion box from small to large, and
It is currently accessed when having vacant interface apart from corresponding inversion box, determination will be currently accessed to be accessed to currently apart from corresponding header box
Access apart from corresponding inversion box, and make to be currently accessed the remaining access distance corresponding to the corresponding header box no longer by
Traversal can reduce next traversal workload, save the working time.It acquired is each connect alternatively, traversing from small to large
Enter distance, does not access any inversion box being currently accessed apart from corresponding header box and be currently accessed apart from corresponding inversion box
When having vacant interface, determination will be currently accessed to access to apart from corresponding header box and be currently accessed apart from corresponding inversion box, and
Distance will be currently accessed to delete, the connection type of header box and inversion box in photovoltaic DC field can be rationally set.
In this way, connecing for the header box and inversion box irregularly arranged in photovoltaic DC field can be obtained fast automaticly
Enter scheme, existing waste when solving in the related technology by manually carrying out trying to gather to be grouped to the header box for accessing the same inversion box
The problem of time and manpower；And when using the access scheme of this method setting header box and inversion box, if there is place side
It is default by changing when mounting condition change causes the position of header box or inversion box to change in boundary's change or place
Parameter can rapid response engineering variation to prevent delayed works.
The application 3rd embodiment provides a kind of determining device of photovoltaic DC field access scheme, as shown in fig. 6, the device
Including：
Acquisition module 61 is configured as obtaining in photovoltaic DC field header box to the access distance of each inversion box, the confluence
Case is all header boxs for not determining access scheme；
Spider module 62 is configured as traversing access distance according to sequence from small to large；
Determining module 63 is configured as being connect less than predetermined being currently accessed the header box access number apart from corresponding inversion box
When entering several, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed apart from corresponding inversion box, and make current
The distance of the remaining access corresponding to the corresponding header box is accessed not to be traversed；Alternatively, being currently accessed apart from right in determination
The header box answered is not linked into any inversion box and the header box access number being currently accessed apart from corresponding inversion box is less than
When predetermined access number, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed apart from corresponding inversion box；
Computing module 64 is configured as being currently accessed distance when determination will be currently accessed to be linked into apart from corresponding header box
After corresponding inversion box, by be currently accessed apart from corresponding inversion box header box access number add one.
In one possible implementation, which further includes setup module, is configured as obtaining in photovoltaic DC field
Before or after header box to the access distance of each inversion box, the numerical value of predetermined access number is set.
In one possible implementation, acquisition module 61 includes：
First acquisition submodule is configured as obtaining the position of each header box and each inversion box in photovoltaic DC field and sits
Mark；
Second acquisition submodule, be configured as according to position coordinates obtain each header box to each inversion box access away from
From.
In one possible implementation, which further includes display module, is configured as the shape with schematic three dimensional views
Formula shows the position of header box and inversion box in photovoltaic DC field；Header box and inversion box are shown in the form of schematic three dimensional views
Connection type.
The determining device of photovoltaic DC field access scheme provided in this embodiment does not determine connection by obtaining in photovoltaic DC field
The header box of scheme is to the access distance of each inversion box, and each access distance of traversal, is being currently accessed apart from right from small to large
When the header box access number for the inversion box answered is less than predetermined access number, determination will be currently accessed to be linked into apart from corresponding header box
It is currently accessed apart from corresponding inversion box, and the header box access number for being currently accessed apart from corresponding inversion box is added one, and make
The distance of the remaining access corresponding to the corresponding header box is currently accessed not to be traversed；Alternatively, determine be currently accessed away from
It is not linked into any inversion box from corresponding header box and the header box of corresponding inversion box accesses number with a distance from being currently accessed
When less than predetermined access number, determination will be currently accessed to be linked into apart from corresponding header box and be currently accessed apart from corresponding inversion
Case, and by be currently accessed apart from corresponding inversion box header box access number add one, it is ensured that all confluences in photovoltaic DC field
While number of cables used in case access inversion box is minimum, the access scheme of header box and inversion box in design photovoltaic DC field is reduced
Time used, and by change parameter preset can rapid response engineering variation to prevent delayed works.
It should be noted that the determining device of the photovoltaic DC field access scheme provided in above-described embodiment is determining photovoltaic electric
When the access scheme of header box and inversion box in, only the example of the division of the above functional modules, actually answer
In, it can be completed as needed and by above-mentioned function distribution by different function modules, i.e., by the internal structure of device or journey
Sequence is divided into different function modules, to complete all or part of the functions described above.In addition, what above-described embodiment provided
The determining device of photovoltaic DC field access scheme belongs to same design with the determination embodiment of the method for photovoltaic DC field access scheme, has
Body realizes that process refers to embodiment of the method, and which is not described herein again.
The application fourth embodiment provides a kind of computer equipment, which can be desktop computer, notes
Various types of computer equipments such as this computer, tablet computer.The computer equipment includes processor and memory, and memory is deposited
Embodiment before storage is used by the processor to execute there are one either more than one program this or more than one program
Described in photovoltaic DC field access scheme determination method.
The 5th embodiment of the application provides a kind of computer readable storage medium, which can be with
It is computer readable storage medium included in the memory in above-described embodiment；Can also be individualism, without supplying
Computer readable storage medium in terminal.There are one the computer-readable recording medium storages or more than one program,
Photovoltaic DC field access scheme before this or more than one program are used by the processor to execute described in embodiment
Determine method.
The foregoing is merely the preferred embodiments of the application, not to limit the application, it is all in spirit herein and
Within principle, any modification, equivalent replacement, improvement and so on should be included within the protection domain of the application.
Claims (10)
1. a kind of determination method of photovoltaic DC field access scheme, which is characterized in that the method includes：
Obtaining each header box in photovoltaic DC field, to the access distance of each inversion box, the header box is not determine access scheme
Header box；
The access distance is traversed according to sequence from small to large, is being currently accessed the confluence apart from corresponding inversion box
When case accesses number less than predetermined access number, determines and described be currently accessed is linked into described be currently accessed apart from corresponding header box
Add one apart from corresponding inversion box, and by the header box access number being currently accessed apart from corresponding inversion box, and makes described
The distance of the remaining access corresponding to the corresponding header box is currently accessed not to be traversed；Alternatively, described currently being connect determining
Enter and is not linked into any inversion box and the confluence being currently accessed apart from corresponding inversion box apart from corresponding header box
Case access number be less than the predetermined access number when, determine by it is described be currently accessed apart from corresponding header box be linked into it is described currently
Access adds one apart from corresponding inversion box, and by the header box access number being currently accessed apart from corresponding inversion box.
2. according to the method described in claim 1, it is characterized in that, each header box is to each in the acquisition photovoltaic DC field
Before or after the access distance of inversion box, the numerical value of the setting predetermined access number.
3. according to the method described in claim 1, it is characterized in that, each header box is to each inverse in the acquisition photovoltaic DC field
Become case access distance include：
Obtain the position coordinates of each header box and each inversion box in the photovoltaic DC field；
According to the access distance of each header box of position coordinates acquisition to each inversion box.
4. according to the method described in claim 1, it is characterized in that, the method further includes：It is shown in the form of schematic three dimensional views
Show the position of header box and inversion box in the photovoltaic DC field；The header box and institute are shown in the form of schematic three dimensional views
State the connection type of inversion box.
5. a kind of determining device of photovoltaic DC field access scheme, which is characterized in that described device includes：
Acquisition module, the acquisition module be configured as obtaining each header box in photovoltaic DC field to each inversion box access away from
From the header box is the header box for not determining access scheme；
Spider module, the spider module are configured as traversing the access distance according to sequence from small to large；
Determining module, the determining module be configured as be currently accessed apart from corresponding inversion box header box access number be less than
When predetermined access number, determines and described be currently accessed is linked into described be currently accessed apart from corresponding inverse apart from corresponding header box
Become case, and the remaining access distance being currently accessed corresponding to the corresponding header box is made not to be traversed；Alternatively, true
Fixed described be currently accessed is not linked into any inversion box apart from corresponding header box and described is currently accessed apart from corresponding
When the header box access number of inversion box is less than the predetermined access number, determination connects described be currently accessed apart from corresponding header box
Enter to described and is currently accessed apart from corresponding inversion box；
Computing module, the computing module are configured as that described be currently accessed is linked into institute apart from corresponding header box when determining
It states and is currently accessed after corresponding inversion box, the header box access number being currently accessed apart from corresponding inversion box is added
One.
6. device according to claim 5, which is characterized in that described device further includes：
Setup module, the setup module are configured as in the acquisition photovoltaic DC field each header box to each inversion box
It accesses before or after distance, the numerical value of the setting predetermined access number.
7. device according to claim 5, which is characterized in that the acquisition module includes：
First acquisition submodule, first acquisition submodule are configured as obtaining in the photovoltaic DC field each header box
With the position coordinates of each inversion box；
Second acquisition submodule, second acquisition submodule are configured as obtaining each confluence according to the position coordinates
Access distance of the case to each inversion box.
8. device according to claim 5, which is characterized in that described device further includes：
Display module, the display module be configured as showing in the form of schematic three dimensional views in the photovoltaic DC field header box and
The position of inversion box；The connection type of the header box and the inversion box is shown in the form of schematic three dimensional views.
9. a kind of computer equipment, which is characterized in that the computer equipment includes processor and memory, and the memory is deposited
There are one storages or more than one program, one or more than one program are used for executing such as right by the processor
It is required that the determination method of 1 to 4 any photovoltaic DC field access scheme.
10. a kind of computer-readable medium, which is characterized in that there are one the computer-readable medium storages or more than one
Program, the program of the one or more are used by the processor to execute the photovoltaic electric as described in Claims 1-4 is any
The determination method of field access scheme.
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