CN112186897A - Monitoring system, positioning method and device of photovoltaic module and storage medium - Google Patents
Monitoring system, positioning method and device of photovoltaic module and storage medium Download PDFInfo
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- CN112186897A CN112186897A CN202010998853.4A CN202010998853A CN112186897A CN 112186897 A CN112186897 A CN 112186897A CN 202010998853 A CN202010998853 A CN 202010998853A CN 112186897 A CN112186897 A CN 112186897A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000012423 maintenance Methods 0.000 claims abstract description 49
- 238000004891 communication Methods 0.000 claims description 41
- 238000001914 filtration Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 108091081062 Repeated sequence (DNA) Proteins 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
- H02S50/15—Testing of PV devices, e.g. of PV modules or single PV cells using optical means, e.g. using electroluminescence
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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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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
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- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a monitoring system, a positioning method and a positioning device of a photovoltaic assembly and a storage medium, wherein the method comprises the following steps: receiving photovoltaic module information sent by a local intelligent junction box, wherein the photovoltaic module information comprises a serial number of a photovoltaic module; storing the sequence numbers in the order of receipt; after the serial numbers are stored, the stored serial numbers are sent to the operation and maintenance monitoring module, so that the operation and maintenance monitoring module can determine the position information of the photovoltaic module according to the serial numbers. The photovoltaic module operation maintenance efficiency can be improved.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a monitoring system, a positioning method and a positioning device of a photovoltaic module and a storage medium.
Background
The photovoltaic power generation system is characterized in that a plurality of standard photovoltaic modules are combined in series and parallel to form a photovoltaic module array, and then the photovoltaic module array converts direct current into standard alternating current through a photovoltaic inverter to be connected to a grid or supply load for power. The photovoltaic modules are important parts in a photovoltaic power generation system, if one or some photovoltaic modules have faults, the fault of the photovoltaic modules needs to be checked, and due to the fact that the number of the photovoltaic modules of a large photovoltaic power station is large, a large amount of time needs to be spent on fault checking, and the operation and maintenance efficiency of the photovoltaic modules is low.
Disclosure of Invention
The invention mainly aims to provide a monitoring system, a positioning method and a positioning device of a photovoltaic module and a storage medium, and aims to solve the problem of high cost of detecting a photovoltaic string.
In order to achieve the above object, the monitoring system provided by the present invention includes a local intelligent junction box, a local controller, and an operation and maintenance monitoring module, where the local intelligent junction box includes a first control unit, the first control unit is respectively in communication connection with a first high-frequency carrier communication unit and a filtering driving unit, the first high-frequency carrier communication unit is connected with a magnetic ring, and the filtering driving unit is in communication connection with a band-pass filter unit.
In one embodiment, the local controller includes a second control unit, the second control unit is connected to a queue storage unit and a plurality of second high-frequency carrier communication units in communication, and the first high-frequency carrier communication unit and the second high-frequency carrier communication units communicate via a carrier.
In one embodiment, the first high-frequency carrier communication unit of the local intelligent junction box is connected with the negative direct-current terminal or the positive direct-current terminal of the power line through the magnetic ring.
In order to achieve the above object, the present invention provides a method for positioning a photovoltaic string, which comprises the following steps:
receiving photovoltaic assembly information sent by a local intelligent junction box, wherein the photovoltaic assembly information comprises a serial number of a photovoltaic assembly;
storing the sequence numbers in the order of receipt;
after the serial numbers are stored, the stored serial numbers are sent to an operation and maintenance monitoring module, so that the operation and maintenance monitoring module can determine the position information of the photovoltaic module according to the serial numbers.
In an embodiment, before the step of receiving the photovoltaic module information sent by the local intelligent junction box, the method further includes:
and controlling the local intelligent junction box to upload the photovoltaic module information of the photovoltaic module at regular time.
In one embodiment, the step of storing the sequence numbers in the order of reception comprises:
storing the serial numbers of the photovoltaic modules in the photovoltaic group strings into queues corresponding to the photovoltaic group strings according to a receiving sequence;
after the serial numbers are stored, the step of sending the stored serial numbers to the operation and maintenance monitoring module comprises the following steps:
and after the serial numbers are stored, sequentially sending the serial numbers in the queue to the operation and maintenance monitoring module.
In an embodiment, after the step of receiving the photovoltaic module information sent by the local intelligent junction box, the method for positioning the photovoltaic module further includes:
judging whether the queue storage unit of the local controller stores the serial number;
and when the queue storage unit does not store the sequence numbers, executing the step of storing the sequence numbers according to the receiving sequence.
In an embodiment, after the step of receiving the photovoltaic module information sent by the local intelligent junction box, the method for positioning the photovoltaic module further includes:
generating reply information according to the photovoltaic module information;
and sending the reply information to the local intelligent junction box.
In an embodiment, after the step of storing the serial numbers in the receiving order, the method for positioning a photovoltaic module further includes:
acquiring the storage time of the serial number stored for the last time;
if the new serial number is not stored in a preset time after the storage time, determining the number of the serial numbers;
and if the number of the serial numbers is smaller than the preset number, performing exception prompting.
In an embodiment, the positioning method of the photovoltaic module is applied to an operation and maintenance monitoring module in a monitoring system, and the positioning method of the photovoltaic module includes:
acquiring the serial number sent by the local controller;
and if the serial number in the operation and maintenance monitoring module reaches a preset number, determining the position information of the photovoltaic module according to the serial number.
In an embodiment, the step of determining the position information of the photovoltaic module according to the serial number comprises:
determining the storage sequence of the serial numbers;
and determining the position information of the photovoltaic assembly in the photovoltaic group string according to the storage sequence and the photovoltaic assembly corresponding to the serial number.
In order to achieve the above object, the present invention further provides a positioning device for a photovoltaic module, which includes a memory, a processor, and a positioning program for a photovoltaic module stored in the memory and executable on the processor, wherein the positioning program for a photovoltaic module, when executed by the processor, implements the steps of the positioning method for a photovoltaic module as described above.
In order to achieve the above object, the present invention further provides a storage medium, wherein the storage medium stores a positioning program of a photovoltaic module, and the positioning program of the photovoltaic module, when executed by a processor, implements the steps of the positioning method of the photovoltaic module as described above.
The monitoring system, the positioning method and device of the photovoltaic module and the storage medium provided by the invention receive photovoltaic module information sent by a local intelligent junction box, wherein the photovoltaic module information comprises a serial number of the photovoltaic module; storing the sequence numbers in the order of receipt; after the serial numbers are stored, the stored serial numbers are sent to the operation and maintenance monitoring module, so that the operation and maintenance monitoring module can determine the position information of the photovoltaic module according to the serial numbers. Through connecting a local intelligent terminal box on every photovoltaic module in parallel, photovoltaic module's serial number has been uploaded to local intelligent terminal box, has confirmed photovoltaic module's positional information through the serial number, when certain photovoltaic module broke down, was convenient for fix a position trouble photovoltaic module's positional information, improves photovoltaic module operation maintenance's efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a monitoring system according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a monitoring system according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of a local controller of a monitoring system according to a second embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a positive terminal type intelligent junction box of a third embodiment of the monitoring system of the present invention;
FIG. 5 is a schematic diagram of a negative-side intelligent junction box of a third embodiment of the monitoring system of the present invention;
fig. 6 is a schematic hardware structure diagram of a positioning device of a photovoltaic module according to an embodiment of the present invention;
fig. 7 is a schematic flow chart of a positioning method of a photovoltaic module according to a first embodiment of the present invention;
fig. 8 is a schematic flow chart of a positioning method of a photovoltaic module according to a second embodiment of the present invention;
fig. 9 is a schematic flow chart of a positioning method of a photovoltaic module according to a third embodiment of the present invention;
fig. 10 is a schematic flow chart of a positioning method of a photovoltaic module according to a fourth embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: receiving photovoltaic module information sent by a local intelligent junction box, wherein the photovoltaic module information comprises a serial number of a photovoltaic module; storing the sequence numbers in the order of receipt; after the serial numbers are stored, the stored serial numbers are sent to the operation and maintenance monitoring module, so that the operation and maintenance monitoring module can determine the position information of the photovoltaic module according to the serial numbers.
Through connecting a local intelligent terminal box on every photovoltaic module in parallel, photovoltaic module's serial number has been uploaded to local intelligent terminal box, has confirmed photovoltaic module's positional information through the serial number, when certain photovoltaic module broke down, was convenient for fix a position trouble photovoltaic module's positional information, improves photovoltaic module operation maintenance's efficiency.
The invention provides a monitoring system, and referring to fig. 1 or fig. 2, fig. 1 or fig. 2 is a first embodiment of the monitoring system of the invention, the monitoring system includes a local intelligent junction box, a local controller and an operation and maintenance monitoring module, the local intelligent junction box includes a first control unit, the first control unit is respectively connected with a first high-frequency carrier communication unit and a filtering driving unit in a communication manner, the first high-frequency carrier communication unit is connected with a magnetic ring, and the filtering driving unit is connected with a band-pass filter unit in a communication manner.
In the technical scheme provided by the embodiment, each photovoltaic module is connected with one local intelligent junction box in parallel. The local intelligent junction box uploads the photovoltaic module information to the local controller at regular time, and after the local controller acquires the photovoltaic module information sent by the local intelligent junction box, the local controller generates reply information and sends the reply information to the local intelligent junction box corresponding to the photovoltaic module information. The local controller sends the serial number to the operation and maintenance monitoring module, as shown in fig. 1, the local controller may send the serial number to the operation and maintenance monitoring module through the centralized inverter, as shown in fig. 2, the local controller may send the serial number to the operation and maintenance monitoring module through the ac combiner box. And the operation and maintenance monitoring module determines the position information of the photovoltaic module according to the received serial number. The operation and maintenance monitoring module can obtain the geographic position information of each photovoltaic module according to the position information and the geographic position diagram of the photovoltaic module.
The local intelligent junction box is used for inducing circuit signals of a power line corresponding to the photovoltaic module through the first high-frequency carrier communication unit to generate photovoltaic module information through the magnetic ring, the first control unit is used for judging whether the photovoltaic module information is sent to the local controller through the first high-frequency carrier communication unit, and if the photovoltaic module information is not needed to be sent to the local controller, the first control unit controls the band-pass filter unit to filter the photovoltaic module information in the circuit signals of the circuit. And if the photovoltaic module information needs to be sent to the local controller, the circuit signal is sent to the local controller through the first high-frequency carrier communication unit.
This embodiment is through connecting a local intelligent terminal box in parallel on every photovoltaic module, local intelligent terminal box passes through the magnetic ring response and generates the photovoltaic module information, and control band-pass filter unit filters the photovoltaic module information in the circuit signal in the power line, realized uploading in proper order of photovoltaic module serial number to local controller, local controller sends the serial number to fortune dimension monitoring module, fortune dimension monitoring module has confirmed the positional information of photovoltaic module through the serial number order, when certain photovoltaic module breaks down, be convenient for fix a position trouble photovoltaic module's positional information, improve the efficiency that photovoltaic module operation was maintained.
Referring to fig. 3, fig. 3 is a second embodiment of the monitoring system of the present invention, and based on the first embodiment of the monitoring system of the present invention, the local controller includes a second control unit, the second control unit is communicatively connected to a queue storage unit and a plurality of second high-frequency carrier communication units, and the first high-frequency carrier communication unit and the second high-frequency carrier communication units communicate with each other through a carrier.
In the technical scheme provided by this embodiment, the local controller receives the photovoltaic module information sent by the first high-frequency carrier communication unit through the second high-frequency carrier communication unit in communication connection with the first high-frequency carrier communication unit, and the second controller stores the serial number in the received photovoltaic module information in the queue storage unit. Under a certain condition, for example, the serial number of the queue storage unit meets the preset number, the second control unit sends the serial number in the queue storage unit to the operation and maintenance monitoring module through the RS485 unit.
In the embodiment, the communication between the local intelligent junction box and the local controller is realized through the first high-frequency carrier communication unit of the local intelligent junction box and the second high-frequency carrier communication unit of the local controller, the photovoltaic module information is uploaded to the local controller, and the data transmission of the photovoltaic module information from the intelligent junction box to the local controller is realized.
Referring to fig. 4 or 5, fig. 4 or 5 is a third embodiment of the monitoring system of the present invention, and based on the first or second embodiment of the monitoring system of the present invention, the first high-frequency carrier communication unit of the local intelligent junction box is connected to the negative dc terminal or the positive dc terminal of the power line through the magnetic ring.
In the technical solution provided in this embodiment, the connection mode between the local intelligent junction box and the photovoltaic module may be, as shown in fig. 4, a positive-side local intelligent junction box connected in parallel with one photovoltaic module, or may be, as shown in fig. 5, a negative-side local intelligent junction box connected in parallel with one photovoltaic module, wherein the first high-frequency carrier communication unit of the positive-side local intelligent junction box is connected to a dc positive side of the power line through a magnetic ring, and the bandpass filter unit is connected to a dc negative side of the power line; the first high-frequency carrier communication unit of the negative-end type local intelligent junction box is connected with the direct-current negative end of the power line through the magnetic ring, and the band-pass filter unit is connected with the direct-current positive end of the power line. In this embodiment, the change of the sequence of uploading the serial numbers of the photovoltaic modules is realized through the connection mode of the local intelligent junction box and the photovoltaic modules, and if the sequence of the serial numbers uploaded by the positive-side local intelligent junction box in the monitoring system is from 1 to n, the sequence of the serial numbers uploaded by the negative-side local intelligent junction box in the same monitoring system is from n to 1.
As an implementation, the positioning device based on photovoltaic modules can be as shown in fig. 6.
The embodiment of the invention relates to a positioning device of a photovoltaic assembly, which comprises: a processor 101, e.g. a CPU, a memory 102, a communication bus 103. Wherein a communication bus 103 is used for enabling the connection communication between these components.
The memory 102 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). As shown in fig. 6, the memory 102 as a storage medium may include therein a positioning program of the photovoltaic module; and the processor 101 may be configured to invoke a positioning program for the photovoltaic module stored in the memory 102 and perform the following operations:
receiving photovoltaic assembly information sent by a local intelligent junction box, wherein the photovoltaic assembly information comprises a serial number of a photovoltaic assembly;
storing the sequence numbers in the order of receipt;
after the serial numbers are stored, the stored serial numbers are sent to an operation and maintenance monitoring module, so that the operation and maintenance monitoring module can determine the position information of the photovoltaic module according to the serial numbers.
In an embodiment, the processor 101 may be configured to invoke a positioning program for the photovoltaic module stored in the memory 102 and perform the following operations:
and controlling the local intelligent junction box to upload the photovoltaic module information of the photovoltaic module at regular time.
In an embodiment, the processor 101 may be configured to invoke a positioning program for the photovoltaic module stored in the memory 102 and perform the following operations:
storing the serial numbers of the photovoltaic modules in the photovoltaic group strings into queues corresponding to the photovoltaic group strings according to a receiving sequence;
and after the serial numbers are stored, sequentially sending the serial numbers in the queue to the operation and maintenance monitoring module.
In an embodiment, the processor 101 may be configured to invoke a positioning program for the photovoltaic module stored in the memory 102 and perform the following operations:
judging whether the queue storage unit of the local controller stores the serial number;
and when the queue storage unit does not store the sequence numbers, executing the step of storing the sequence numbers according to the receiving sequence.
In an embodiment, the processor 101 may be configured to invoke a positioning program for the photovoltaic module stored in the memory 102 and perform the following operations:
generating reply information according to the photovoltaic module information;
and sending the reply information to the local intelligent junction box.
In an embodiment, the processor 101 may be configured to invoke a positioning program for the photovoltaic module stored in the memory 102 and perform the following operations:
acquiring the storage time of the serial number stored for the last time;
if the new serial number is not stored in a preset time after the storage time, determining the number of the serial numbers;
and if the number of the serial numbers is smaller than the preset number, performing exception prompting.
In an embodiment, the processor 101 may be configured to invoke a positioning program for the photovoltaic module stored in the memory 102 and perform the following operations: acquiring the serial number sent by the centralized inverter;
acquiring the serial number sent by the local controller;
and if the serial number in the operation and maintenance monitoring module reaches a preset number, determining the position information of the photovoltaic module according to the serial number.
In an embodiment, the processor 101 may be configured to invoke a positioning program for the photovoltaic module stored in the memory 102 and perform the following operations:
determining the storage sequence of the serial numbers;
and determining the position information of the photovoltaic assembly in the photovoltaic group string according to the storage sequence and the photovoltaic assembly corresponding to the serial number.
Based on the hardware architecture of the positioning device of the photovoltaic module, the embodiment of the positioning method of the photovoltaic module is provided.
Referring to fig. 7, fig. 7 is a first embodiment of a positioning method of a photovoltaic module according to the present invention, the positioning method of the photovoltaic module including the steps of:
step S10, receiving photovoltaic module information sent by a local intelligent junction box, wherein the photovoltaic module information comprises a serial number of the photovoltaic module.
Specifically, photovoltaic module information of photovoltaic modules is uploaded by the local intelligent junction boxes at regular time, the local controller receives the photovoltaic module information sent by the local intelligent junction boxes, the photovoltaic modules are connected in series, each local intelligent junction box is connected with one photovoltaic module in parallel, the photovoltaic module information sent by each local intelligent junction box represents the information of the photovoltaic modules connected with the local intelligent junction boxes in parallel, and serial numbers in the photovoltaic module information can uniquely identify the photovoltaic modules connected with the local intelligent junction boxes in parallel.
After the local controller receives photovoltaic module information sent by the local intelligent junction box, the local controller generates reply information according to the photovoltaic module information and sends the reply information to the local intelligent junction box. And the local controller receives the photovoltaic module information, and then generates reply information to be sent to the corresponding local intelligent junction box, so that the current local intelligent junction box stops sending the photovoltaic module information, and the local controller starts to receive the photovoltaic module information sent by the next local intelligent junction box.
Step S20, storing the sequence numbers in order of receipt.
Specifically, the receiving sequence of the local controller is consistent with the sending sequence of the local intelligent junction box, the sending sequence of the local intelligent junction box firstly determines the sequence of the photovoltaic group strings, and then the serial numbers are sequentially uploaded according to the positions of the photovoltaic modules in the photovoltaic group strings. For example, as shown in fig. 1, the local controller 1 first receives the photovoltaic module information of the photovoltaic module 1-1-1, the local controller 1 generates a reply message to the local intelligent junction box corresponding to the photovoltaic module 1-1-1, after the local intelligent junction box corresponding to the photovoltaic module 1-1-1 receives the reply message, forbidding the local intelligent junction box corresponding to the photovoltaic component 1-1-1 to send the photovoltaic component information of the photovoltaic component 1-1-1 to the local controller 1, forbidding the filtering function of the band-pass filter unit by the local intelligent junction box corresponding to the photovoltaic component 1-1-1, the local intelligent junction box corresponding to the photovoltaic assembly 1-1-2 can send photovoltaic assembly information of the photovoltaic assembly 1-1-2 to be uploaded to the local controller 1. Similarly, the local intelligent junction box corresponding to the photovoltaic module 1-1-2 uploads the photovoltaic module information of the photovoltaic module 1-1-2 to the local controller 1, and until the intelligent junction box corresponding to the photovoltaic module 1-1-n uploads the photovoltaic module information to the local controller 1, all the photovoltaic module information of the photovoltaic module string 1 where the photovoltaic modules 1-1-1 to 1-1-n are located is uploaded to the local controller. Next, according to the uploading sequence of the photovoltaic string 1, the local controller sequentially receives the photovoltaic module information of the photovoltaic string 1 to m.
And step S30, after the serial numbers are stored, sending the stored serial numbers to an operation and maintenance monitoring module so that the operation and maintenance monitoring module can determine the position information of the photovoltaic module according to the serial numbers.
Specifically, the serial numbers are stored in the queue storage unit at the local controller, and when no new serial number is stored in a preset time after the last storage time, the serial numbers are sent to the operation and maintenance monitoring module, and under a certain condition, for example, the serial numbers reach a preset number, that is, the serial numbers of each photovoltaic module are uploaded to the operation and maintenance monitoring module, so that the operation and maintenance monitoring module determines the position information of the photovoltaic module according to the serial numbers.
After the serial numbers are received, the serial numbers of the photovoltaic assemblies in the photovoltaic group strings can be stored in the queues corresponding to the photovoltaic group strings according to the receiving sequence, and after the serial numbers are stored, the serial numbers in the queues are sequentially sent to the operation and maintenance monitoring module.
In the technical scheme of this embodiment, through parallelly connected a local intelligent terminal box on every photovoltaic module, the serial number of photovoltaic module is regularly initiatively uploaded to local intelligent terminal box, has confirmed photovoltaic module's positional information through the serial number, when certain photovoltaic module broke down, is convenient for fix a position trouble photovoltaic module's positional information, improves photovoltaic module operation maintenance's efficiency.
Referring to fig. 8, fig. 8 is a second embodiment of the positioning method of the photovoltaic module according to the present invention, and based on the first embodiment, after step S10, the method further includes:
step S40, determining whether the queue storage unit of the local controller already stores the serial number;
step S50, when the queue storage unit does not store the sequence number, the step of storing the sequence number in the order of reception is executed.
Specifically, before storing the sequence number, it is further necessary to determine whether the queue storage unit of the local controller contains the same sequence number. And when the queue storage units do not store the same sequence numbers, storing the sequence numbers in the queue storage units of the local controllers according to the receiving sequence. When the same sequence number is stored in the queue storage unit, the storage of the sequence number is abandoned.
In the technical scheme of this embodiment, the sequence numbers in the queue storage units are all different from each other by querying the sequence numbers in the queue storage units before storing the sequence numbers, so that the repeated sequence numbers are prevented from occupying a memory space.
Referring to fig. 9, fig. 9 is a third embodiment of the positioning method of the photovoltaic module according to the present invention, and based on any one of the first to second embodiments, after the step S20, the method further includes:
step S60, obtaining the storage time of the serial number stored for the last time;
step S70, if the new serial number is not stored in the preset time after the storage time, determining the number of the serial number;
and step S80, if the number of the serial numbers is less than the preset number, performing exception prompting.
Specifically, within a preset time period after the last time of storing the serial number, the local controller does not receive a new serial number, and then determines the number of the serial numbers. The preset number is the same as the number of the photovoltaic modules, if the number of the serial numbers is smaller than the preset number, the serial numbers of the photovoltaic modules are not uploaded to the local controller, an abnormal prompt needs to be carried out, maintenance personnel are informed to carry out maintenance, and the abnormal photovoltaic modules can be checked according to the photovoltaic modules corresponding to the serial numbers stored at the last time.
In the technical scheme of this embodiment, the condition that the photovoltaic module has an abnormal condition and causes that the local intelligent junction box cannot upload the serial number is considered, and when the number of the serial numbers in the local controller is smaller than the preset number, an abnormal prompt is performed.
Referring to fig. 10, fig. 10 is a fourth embodiment of the positioning method of the photovoltaic module according to the present invention, and based on any one of the first to third embodiments, the positioning method of the photovoltaic module further includes:
step S90, acquiring the serial number sent by the local controller;
and S100, if the serial number in the operation and maintenance monitoring module reaches a preset number, determining the position information of the photovoltaic module according to the serial number.
The step S100 further includes:
and determining the storage sequence of the serial numbers, and determining the position information of the photovoltaic assemblies in the photovoltaic group strings according to the storage sequence and the photovoltaic assemblies corresponding to the serial numbers.
Specifically, the operation and maintenance monitoring module acquires all serial numbers sent by the local controller, after the serial numbers reach a preset number, the position information of the photovoltaic modules in the photovoltaic group string can be determined according to the storage sequence of the serial numbers and the photovoltaic modules corresponding to the serial numbers, and the operation and maintenance monitoring module can obtain the geographic position information of each photovoltaic module according to the position information and the geographic position map.
In the technical scheme of this embodiment, the operation and maintenance monitoring module determines the position information of the photovoltaic module through the serial number, so that when a certain photovoltaic module fails, the position information of the failed photovoltaic module is convenient to locate, and the operation and maintenance efficiency of the photovoltaic module is improved.
The invention also provides a positioning device of a photovoltaic module, which comprises a memory, a processor and a positioning program of the photovoltaic module, wherein the positioning program of the photovoltaic module is stored in the memory and can be executed on the processor, and when being executed by the processor, the positioning program of the photovoltaic module realizes the steps of the positioning method of the photovoltaic module according to the embodiment.
The invention further provides a storage medium, wherein the storage medium stores a positioning program of the photovoltaic module, and the positioning program of the photovoltaic module is executed by a processor to realize the steps of the positioning method of the photovoltaic module according to the embodiment.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (13)
1. The monitoring system is characterized by comprising a local intelligent junction box, a local controller and an operation and maintenance monitoring module, wherein the local intelligent junction box comprises a first control unit, the first control unit is respectively in communication connection with a first high-frequency carrier communication unit and a filtering driving unit, the first high-frequency carrier communication unit is connected with a magnetic ring, and the filtering driving unit is in communication connection with a band-pass filter unit.
2. The monitoring system of claim 1, wherein the local controller includes a second control unit communicatively coupled to a queue storage unit and a plurality of second high frequency carrier communication units, the first high frequency carrier communication unit in communication with the second high frequency carrier communication units via a carrier.
3. The monitoring system according to claim 1, wherein the first high frequency carrier communication unit of the local intelligent junction box is connected with the negative dc terminal or the positive dc terminal of the power line through a magnetic ring.
4. A method for positioning a photovoltaic module, wherein the method for positioning a photovoltaic module is applied to a local controller in a monitoring system according to any one of claims 1 to 3, and comprises the following steps:
receiving photovoltaic assembly information sent by a local intelligent junction box, wherein the photovoltaic assembly information comprises a serial number of a photovoltaic assembly;
storing the sequence numbers in the order of receipt;
after the serial numbers are stored, the stored serial numbers are sent to an operation and maintenance monitoring module, so that the operation and maintenance monitoring module can determine the position information of the photovoltaic module according to the serial numbers.
5. The method for positioning a photovoltaic module according to claim 4, wherein the step of receiving the photovoltaic module information sent by the local intelligent junction box is preceded by the step of:
and controlling the local intelligent junction box to upload the photovoltaic module information of the photovoltaic module at regular time.
6. The method of claim 4, wherein the step of storing the serial numbers in the order of receipt comprises:
storing the serial numbers of the photovoltaic modules in the photovoltaic group strings into queues corresponding to the photovoltaic group strings according to a receiving sequence;
after the serial numbers are stored, the step of sending the stored serial numbers to the operation and maintenance monitoring module comprises the following steps:
and after the serial numbers are stored, sequentially sending the serial numbers in the queue to the operation and maintenance monitoring module.
7. The method for positioning a photovoltaic module according to claim 4, wherein after the step of receiving the photovoltaic module information sent by the local intelligent junction box, the method for positioning a photovoltaic module further comprises:
judging whether the queue storage unit of the local controller stores the serial number;
and when the queue storage unit does not store the sequence numbers, executing the step of storing the sequence numbers according to the receiving sequence.
8. The method for positioning a photovoltaic module according to claim 4, wherein after the step of receiving the photovoltaic module information sent by the local intelligent junction box, the method for positioning a photovoltaic module further comprises:
generating reply information according to the photovoltaic module information;
and sending the reply information to the local intelligent junction box.
9. The method of locating a photovoltaic module of claim 4, wherein after the step of storing the serial numbers in the order of receipt, the method of locating a photovoltaic module further comprises:
acquiring the storage time of the serial number stored for the last time;
if the new serial number is not stored in a preset time after the storage time, determining the number of the serial numbers;
and if the number of the serial numbers is smaller than the preset number, performing exception prompting.
10. A method for positioning a photovoltaic module, wherein the method for positioning a photovoltaic module is applied to an operation and maintenance monitoring module in a monitoring system according to any one of claims 1 to 3, and the method for positioning a photovoltaic module comprises the following steps:
acquiring the serial number sent by the local controller;
and if the serial number in the operation and maintenance monitoring module reaches a preset number, determining the position information of the photovoltaic module according to the serial number.
11. The method of claim 10, wherein the step of determining the location information of the photovoltaic module according to the serial number comprises:
determining the storage sequence of the serial numbers;
and determining the position information of the photovoltaic assembly in the photovoltaic group string according to the storage sequence and the photovoltaic assembly corresponding to the serial number.
12. A positioning device for a photovoltaic module, comprising a memory, a processor and a positioning program for a photovoltaic module stored in the memory and executable on the processor, wherein the positioning program for a photovoltaic module when executed by the processor implements the steps of the positioning method for a photovoltaic module according to any one of claims 4 to 11.
13. A storage medium, characterized in that the storage medium stores a positioning program of a photovoltaic module, which when executed by a processor implements the steps of the positioning method of a photovoltaic module according to any one of claims 4-11.
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