CN107017835A - The fault monitoring system and method for photovoltaic module - Google Patents
The fault monitoring system and method for photovoltaic module Download PDFInfo
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- CN107017835A CN107017835A CN201610822746.XA CN201610822746A CN107017835A CN 107017835 A CN107017835 A CN 107017835A CN 201610822746 A CN201610822746 A CN 201610822746A CN 107017835 A CN107017835 A CN 107017835A
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Classifications
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention provides a kind of fault monitoring system of photovoltaic module and method, for the fault diagnosis of photovoltaic generating system, the photovoltaic generating system includes multiple battery components, and the monitoring system includes：Multiple monitoring subnets, each monitoring subnet includes network access device and multiple information collecting devices, and the information collecting device and network access device wireless connection of each monitoring subnet, the multiple information collecting device are respectively arranged at different battery components；The multiple home servers equal with monitoring subnet number, the network access device of the multiple home server and the multiple monitoring subnet corresponds wireless connection；Central server, with the multiple home server wireless connection.
Description
Technical field
The present invention relates to field of photovoltaic power generation, in particular to the fault monitoring system and method for a kind of photovoltaic module.
Background technology
In recent years, with the development of solar photovoltaic technology and going deep into for energy-conserving and environment-protective theory, photovoltaic hair
Electricity is obtained a wide range of applications, and domestic and international photovoltaic generating system Quantity and scale increase year by year.In photovoltaic generating system, lead to
It is often that all battery components are first coupled to a controller, then by inverter by converting direct-current power into alternating-current power, from
And power network is powered or is connected to AC load, each battery component is formed by connecting by multiple cells.
In large-scale photovoltaic generating system, when some battery component breaks down, on such as battery component some or
When certain several battery cell is blocked for a long time by other objects (such as birds droppings, leaf, dust), the solar battery group being blocked
Part now will seriously generate heat, and this serious heating can cause very seriously destruction to solar cell module, there is illumination
Battery produced by portion of energy or all energy, all shielded battery is consumed.For faulty battery pack
Part is if it find that not in time so that handling not in time, it will has a strong impact on the operational efficiency of photovoltaic generating system, or even brings peace
Full accident.
Monitoring in real time can be carried out to battery component in photovoltaic generating system to find the failure of battery component in time.It is existing
Wired connection mode is used to the monitoring of battery component in photovoltaic generating system in technology, i.e., had battery component with monitoring system
Line connects to obtain the relevant information of battery component.But wired connection mode, the cumbersome, cost of wiring is high, maintainable difference, special
It is not for large-scale photovoltaic generating system.
The content of the invention
In view of this, the embodiments of the invention provide a kind of fault monitoring system of photovoltaic module and method, nothing will be used
Line sensing network is monitored to photovoltaic generating system, and the Parameter analysis of the battery component obtained by research and application obtains light
Have faulty battery component in photovoltaic generating system, photovoltaic generation system is monitored by wired connection mode in the prior art to improve
The problem of cumbersome and maintainability of system is poor.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of fault monitoring system of photovoltaic module, for the malfunction monitoring of photovoltaic generating system, the photovoltaic generation system
System includes multiple battery components, and the monitoring system includes：Multiple monitoring subnets, each monitoring subnet includes network access device
And multiple information collecting devices, the information collecting device and network access device wireless connection of each monitoring subnet are described more
Individual information collecting device is respectively arranged at different battery components, state parameter and place for gathering set battery component
Manage as primary status information, information collecting device, which is additionally operable to the primary status information of acquisition being sent to the network connection, to be set
Standby, it is two grades of status informations that the network access device, which is used for the primary status information processing of acquisition,；With monitoring subnet number
A pair of the network access device 1 of equal multiple home servers, the multiple home server and the multiple monitoring subnet
Wireless connection is answered, each home server of the multiple home server is used for reception and the network connection of its wireless connection is set
The two grades of status informations obtained after standby processing, home server is additionally operable to judge photovoltaic generation according to two grades of status informations of acquisition
System whether there is failure；Central server, with the multiple home server wireless connection, receives institute in photovoltaic generating system
State the information that multiple home servers judge to have the battery component of failure.
A kind of fault monitoring method of photovoltaic module, applied to the fault monitoring system of photovoltaic module, wherein, each information
At least one state parameter of the battery component of the information collecting device is provided with harvester collection photovoltaic generating system, and
The state parameter of acquisition is handled, the primary status information of each battery component of correspondence, the primary status information is obtained
Subnet coding, the component coding of the battery component and owning for the battery component including monitoring subnet where the battery component
The primary status information of acquisition is sent to network access device by state parameter, information collecting device；Network access device is received
The primary status information that multiple information collecting devices are sent, and be two grades of states by all primary status information processings received
Information, the subnet coding and the network connection of monitoring subnet where two grades of status informations include the network access device are set
The status data of the standby all battery components received, the status data of each battery component includes the component volume of the battery component
Two grades of status informations for handling acquisition are sent to by all state parameters of code and the battery component, the network access device
Home server；The home server is according to the two grades of status informations and every kind of state parameter of each battery component of acquisition
Default average judge whether each battery component breaks down, and will appear from the battery component of failure state parameter and
Component coding is sent to central server；The central server receives the state parameter and group of the battery component broken down
Part is encoded, and the central server is handled according to the information received.
The fault monitoring system and method for photovoltaic module provided in an embodiment of the present invention, with multiple monitoring subnets, are utilized
Information collecting device carries out data acquisition to each battery component in monitoring subnet, and the state parameter collected is sent into prison
The network access device surveyed in subnet, network access device is then forwarded to corresponding local with place monitoring subnet after being handled
Server, home server be further processed and judge the home server it is corresponding monitoring subnet monitoring range in be
It is no to there is the faulty battery component of tool, and judge knot to being sent with the central server of all home server wireless connections
Really.By wireless connection between information collecting device, network access device, home server and central server, more
Convenient, maintenance cost is lower, also, the analysis of the state parameter of the battery component collected can be accurately found out with failure
Battery component, it is convenient and swift.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 shows the interaction schematic diagram of the fault monitoring system for the photovoltaic module that first embodiment of the invention is provided；
Fig. 2 shows the structured flowchart for the information collecting device that first embodiment of the invention is provided；
Fig. 3 shows a kind of structured flowchart for the router that first embodiment of the invention is provided；
Fig. 4 shows a kind of structured flowchart for the telegon that first embodiment of the invention is provided；
Fig. 5 shows the flow chart of the fault monitoring method for the photovoltaic module that second embodiment of the invention is provided；
Fig. 6 shows the flow of the part steps of the fault monitoring method for the photovoltaic module that second embodiment of the invention is provided
Figure；
Fig. 7 shows the another of the part steps of the fault monitoring method for the photovoltaic module that second embodiment of the invention is provided
Plant flow chart.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Generally exist
The component of the embodiment of the present invention described and illustrated in accompanying drawing can be arranged and designed with a variety of configurations herein.Cause
This, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.Meanwhile, the present invention's
In description, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relative importance.
First embodiment
As shown in figure 1, being the fault monitoring system 100 that the embodiment of the present invention provides photovoltaic module, the event of the photovoltaic module
Barrier monitoring system 100 is used to be monitored the failure of photovoltaic generating system 200, wherein, photovoltaic generating system 200 includes multiple
Battery component 210, as shown in figure 1, the plurality of battery component is the photovoltaic module of photovoltaic generating system.Also, battery component
210 particular number is not intended as limitation in the present embodiment, can set according to actual needs.
Fig. 1 is referred to, multiple monitoring subnets 110 in the fault monitoring system 100 of the photovoltaic module and monitoring is shown
The schematic diagram interacted between the equal multiple home servers 120 of the number of subnet 110 and a central server 130.
Wherein, as shown in figure 1, monitoring one home server 120 of correspondence of subnet 110 is interacted, different monitoring subnets 110
The different home server 120 of correspondence.Also, it is genuinely convinced with monitor subnet 110 and home server 120, home server 120
Interaction between business device is to connect the wireless interaction carried out by wireless network.Also, home server 120 and in it is genuinely convinced
Business device may each be the webserver, database server etc..
Specifically, each monitoring subnet 110 is used for the battery component 210 for monitoring predetermined quantity, battery component is specifically monitored
210 quantity is not intended as limitation in the present embodiment, it is preferred that can be less than or equal to 128.Then, subnet is monitored
What 110 number can be monitored according to the number of battery component 210 in photovoltaic generating system 200 and each monitoring subnet 110
The number of battery component 210 is determined.
Fig. 1 is referred to, each monitoring subnet 110 includes a network access device 111 and multiple information collecting devices
112, the nothing of network access device 111 of each all information collecting devices 112 monitored in subnet 110 and the monitoring subnet 110
Line is connected.
In each monitoring subnet 110, the battery pack that the quantity of information collecting device 112 is monitored with the monitoring subnet 110
The quantity of part 210 is consistent, and each battery component 210 is provided with multiple in an information collecting device 112, monitoring subnet 110
Information collecting device 112 is respectively arranged at different battery components 210.Wherein, information collecting device 112 is used to gather battery pack
The state parameter collected is simultaneously processed as primary status information, and will handle the primary status obtained by the state parameter of part 210
Information is sent to the network access device 111 with its wireless connection.
It will of course be understood that, the state parameter that each information collecting device 112 is gathered is the setting information collecting device
The state parameter of 112 battery component 210.In the present embodiment, the state parameter that information collecting device 112 is gathered can include
One or more in operating voltage, operating current, operating temperature and the intensity of illumination of corresponding battery component 210, when
So, the state parameter for the battery component 210 that information collecting device 112 is gathered can also include other, in the present embodiment not
It is used as limitation.
Further, in the present embodiment, described information harvester 112 includes wireless communication module 112c, processor
112b and multiple sensors 112a, as shown in Figure 2.Wherein, electrically connect, locate between processor 112b and multiple sensors 112a
Electrically connected between reason device 112b and wireless communication module 112c, also, processor 112b and wireless communication module 112c can collect
As a chip or different chips, it is not intended as limiting in the present embodiment.When processor 112b and channel radio
Letter module 112c is integrated into a chip, and in a kind of specific embodiment, the chip can be CC2530.
In information collecting device 112, different sensor 112a is used to gather the battery in the multiple sensors
The different conditions parameter of component 210, for example, current sensor gathers the electric current of battery component 210, voltage sensor collection battery
The voltage of component 210, temperature sensor 112a gathers the temperature of battery component 210, light intensity sensor 112a collection battery components
210 intensity of illumination.In addition, collection electric current can also be current sampling circuit, such as constantan wire, collection voltages can be with electricity
Pressure sample circuit, such as resistor network, collecting temperature can be specially DS18B20, and gather light intensity can be specially
TSL2561.In the present embodiment, the specific species of multiple sensors and the concrete model of each sensor be in this embodiment
Do not limit, also, the various parameters of even collection battery component 210 can not necessarily be defined to sensor 112a, also may be used
Be sample circuit or other.
In the information collecting device 112, processor 112b is used to the sensor 112a state parameters collected being processed as
Primary status information, the wireless communication module 112c is used to the primary status information after processing being sent to the network connection
Equipment 111.
Further, as shown in Fig. 2 in the present embodiment, the information collecting device 112 also includes power module 112d,
Such as DC-DC module.Power module 112d is arranged between battery component 210 and multiple sensors 112a and battery component
Between 210 and processor 112b, power module 112d is used for using battery component 210 in the information collecting device 112
Other parts are powered.
In the present embodiment, network access device 111 is used for the primary status letter that receive information harvester 112 is sent
Breath, it is possible to understand that, the primary status information that each network access device 111 is received is in its place monitoring subnet 110 and it
The primary status information that the information collecting device 112 of wireless connection is sent.In addition, network access device 111 is additionally operable to obtain
Primary status information processing be two grades of status informations, and be sent to home server 120, it is possible to understand that, network connection is set
Standby 111 home servers 120 sent are home server 120 corresponding with monitoring subnet 110 where the webserver.
Further, in the present embodiment, as shown in figure 1, each network access device 111 include router 111a and
Telegon 111b, the router 111a and the telegon 111b wireless connections.Wherein, the router 111a and multiple letters
The wireless connection of harvester 112, the telegon 111b and the wireless connection of home server 120 are ceased, as shown in Figure 1.Road
It is used to receive primary status information by device 111a, and is processed into two grades of status informations, is then forwarded to telegon 111b, coordinates
The router 111a two grades of status informations received are sent to home server 120 by device 111b.
In the present embodiment, router 111a and telegon 111b can also include power module, and such as DC-DC module is used
It is powered in using battery component 210, as shown in Figures 3 and 4.Router can be entered using CC2530 modules as processing module
Row data processing, as shown in Figure 3.Telegon can carry out data processing, and telegon using CC2530 modules as processing module
WiFi module can also be included, as shown in Figure 4.Certainly, in the present embodiment, router 111a's and telegon 111b is specific
Structure is not intended as limiting.
The multiple home servers 120 and the network access devices 111 of multiple monitoring subnets 110 that the present embodiment is provided are one by one
Correspondence wireless connection, then each home server 120 of the multiple home server 120 is for receiving and its wireless connection
The two grades of status informations obtained after the processing of network access device 111.Also, each home server 120 is additionally operable to according to acquisition
Two grades of status informations judge in photovoltaic generating system 200 it is corresponding with the home server 120 monitoring subnet 110 monitor electricity
Whether there is battery component 210 to there is failure in pond component 210, and result of determination is sent to central server 130.
As shown in figure 1, central server 130 and all home server wireless connections, all for receiving is local
The result to breakdown judge that server 120 is sent, it is common, central server 130 be used to receiving to there is the electricity of failure
The information of pond component 210.
Further, mobile terminal 1 40 can also be included in the fault monitoring system 100 of the photovoltaic module, the movement is whole
End 140 and the wireless connection of central server 130.The mobile terminal can be PC (personal computer, PC),
The removable intelligence such as tablet personal computer, smart mobile phone, personal digital assistant (personal digital assistant, PDA) are set
It is standby.The information that the central server 130 is additionally operable to the battery component 210 for the presence failure that will be received is sent to the movement
Terminal 140, then user whether can have in mobile terminal 1 40 knows photovoltaic generating system 200 battery component 210 exist therefore
Barrier, and the battery component that there is failure can be found according to the information of the battery component 210 of acquisition and is fixed a breakdown in time.
Second embodiment
As shown in figure 5, present embodiments providing a kind of fault monitoring method of photovoltaic module, it is real that this method is applied to first
Apply the fault monitoring system 100 of the photovoltaic module described in example.Specifically, referring to Fig. 5, this method includes：
Step S210：The battery of the information collecting device is provided with each information collecting device collection photovoltaic generating system
At least one state parameter of component, and the state parameter of acquisition is handled, obtain the primary of each battery component of correspondence
Status information, the subnet coding of monitoring subnet where the primary status information includes the battery component, the group of the battery component
The primary status information of acquisition is sent to network by all state parameters of part coding and the battery component, information collecting device
Connect equipment.
Specifically, information collecting device 112 includes wireless communication module 112c, processor 112b and at least one sensing
Device 112a, then the step be：The information gathering is provided with least one sensor 112a collections photovoltaic generating system 200
At least one state parameter of the battery component 210 of device 112, and the state parameter collected is sent to processor 112b；
Processor 112b receives every kind of state parameter that the sensor 112a is sent, and the state parameter received is handled,
Obtain the primary status information of correspondence battery component 210；The primary that wireless communication module 112c obtains processor 112b processing
Status information is sent to network access device 111.
A kind of sensor gathers a kind of state parameter, and a sensor can gather one or more state parameters.It is preferred that
, in the present embodiment, each battery component of correspondence, the number that every kind of sensor of setting is set is one, and processor is each
The number for obtaining the state parameter of each sensor collection is one.
In the present embodiment, the data shape for the state parameter that each sensor 112a of information collecting device 112 is collected
Formula can be component coding+state parameter, and the component is encoded to the identity mark of the battery component 210 of sensor 112a correspondence collections
Know, there is the state parameter in uniqueness, the data mode to be the parameter collected for the identity of each battery component 210
Value.Then in the processor 112b of information collecting device 112, the data mode of each state parameter can be subnet coding+group
Part coding+state parameter, wherein, the identity of monitoring subnet 110 where subnet is encoded to the corresponding battery component 210 of state parameter
Mark.For example, subnet is encoded to A monitoring subnet 110, B battery component 210 is encoded to component, the battery is arranged at
The multiple state parameters for the B battery component 210 that the multiple sensors of the information collecting device 112 of component 210 are obtained are respectively
Voltage, electric current, temperature and light intensity, then the data mode of the state parameter of B battery component 210 is in processor 112b：A+B
+ magnitude of voltage；A+B+ current values；A+B+ temperature values；A+B+ light intensity values.
Because the data format of each state parameter has uniformity, each battery components of the processor 112b to acquisition
210 state parameter is handled, and the data of each battery component 210 are merged, and to remove invalid data, reduces data
Transmission quantity.
Specifically, for each battery component 210, the state parameter of the battery component 210 is processed as into primary status letter
Cease, the data mode of the primary status information of acquisition is：Each state parameter of subnet coding+component coding+component.Continue with
Subnet is encoded to component in A monitoring subnet 110 and is encoded to exemplified by B battery component 210, is arranged at the letter of the B battery component
The processor 112b of breath harvester 112 is handled all state parameters of B battery component, obtained primary status information
Data mode be：A+B+ magnitudes of voltage+current value+temperature value+light intensity value.By the institute of the whole photovoltaic generating system 200 of acquisition
The state parameter for having battery component 210 is processed as after primary status information, and data volume is smaller compared to before processing, eliminates part
Redundant data.
Step S220：Network access device receives the primary status information that multiple information collecting devices are sent, and will receive
All primary status information processings arrived are two grades of status informations, and two grades of status informations are included where the network access device
The status data for all battery components that the subnet coding of monitoring subnet and the network access device are received, each battery pack
The status data of part includes the component coding of the battery component and all state parameters of the battery component, the network connection
Two grades of status informations for handling acquisition are sent to home server by equipment.
When network access device 111 includes the router 111a and telegon 111b of mutual wireless connection, the step
In, the router 111a receives the primary status information that multiple information collecting devices 112 are sent, and all first by what is received
Level status information is processed as two grades of status informations；Two grades of status informations that the telegon 111b obtains router 111a processing
It is sent to home server 120.
Specifically, two grades of status informations are the further processing to primary status information, by each monitoring subnet 110
The primary status information of all battery components 210 is merged, and is realized and is represented all battery components 210 under a subnet coding
State parameter, with reduce monitoring subnet 110 in data shared by data volume.
Specifically, the data mode of two grades of status informations can be, subnet encodes the status data of+the first battery component
The status data of+the second battery component+..., wherein, the data mode of the status data of battery component is component coding+component
All state parameters.It should be understood that all state parameters in two grades of status informations for gather the state parameter when
Between put when battery component state parameter.
Continue so that subnet is encoded to A monitoring subnet 110 as an example, the monitoring subnet 110 include component coding be respectively B,
C, D battery component 210, the state parameter of each component include voltage, electric current, temperature and light intensity, the then subnet obtained
Two grades of status informations under coding are A+ (B+B magnitude of voltage+B current value+B temperature value+B light intensity value)+(C+C electricity
Pressure value+C current value+C temperature value+C light intensity value)+(D+D magnitude of voltage+D current value+D temperature value+D light intensity
Value).
In two grades of status informations, the subnet coding of each monitoring subnet 110 only occurs once, each battery component 210
Component coding only occur once, greatly reduce data space-consuming, eliminate more redundant datas.When by two grades of shapes
When state information is sent to home server 120, the occupancy of network transmission resource is reduced, the ageing of transmission is improved, transmitted
Speed is faster.
Step S230：The home server is according to the two grades of status informations and every kind of shape of each battery component of acquisition
The default average of state parameter judges whether each battery component breaks down, and will appear from the state ginseng of the battery component of failure
Number and component coding are sent to central server.
Each home server 120 judges corresponding monitoring of the home server 120 by the status information received
With the presence or absence of the battery component 210 broken down in net 110.
Specifically, home server 120 judges the step of whether battery component 210 monitored in subnet 110 breaks down
Can be as shown in FIG. 6 and 7：Step S231：The home server 120 calculates each state parameter and the state parameter
Default average difference absolute value.
In the present embodiment, the default average of each state parameter is pre-set, and can be in just in battery component 210
Under normal state, multiple state parameter is done to battery component 210 and is obtained, the average value of the state parameter repeatedly to obtain is used as the shape
The corresponding default average of state parameter.For example, the default average of voltage can be Vaver, the default average Vaver is to normal shape
The voltage of battery component under state carries out repeatedly acquisition averaged and obtained, and the default average of electric current can be Iaver, and this is pre-
If average Iaver is to carry out repeatedly acquisition averaged to the electric current of the battery component under normal condition to obtain.
Include all battery components in monitoring subnet 110 in the two grades of status informations obtained due to home server 120
210 all state parameters, then can calculate the absolute of each state parameter of each battery component 210 and the difference of default average
Value.Such as, for certain battery component 210, in two grades of status informations, the voltage of the battery component 210 is Vij, then obtains the battery
The magnitude of voltage of component 210 and the absolute value of default average Vaver difference be | Vij-Vaver |.
In a kind of specific embodiment, as shown in fig. 6, judge the step of there is failure in battery component 210 as：Step
S232A：Compare the size of each absolute value and predetermined threshold value, when absolute value is more than predetermined threshold value, judge absolute value correspondence
Battery component there is failure.
The predetermined threshold value is determined according to actual needs, and it is possible to each state parameter of correspondence is set, such as voltage
One voltage threshold is set, and electric current sets current threshold etc..It is battery component for the predetermined threshold value of every kind of state parameter
210 are in maximum during normal operating conditions, when the value of state parameter exceedes its corresponding predetermined threshold value, then illustrate battery pack
Part 210 breaks down.
Home server 120 compares the size for obtaining absolute value and predetermined threshold value, predetermined threshold value correspondence different conditions parameter
Setting, then the predetermined threshold value that absolute value is compared be the corresponding state parameter of the absolute value predetermined threshold value, such as voltage it is pre-
If threshold value is Vδ, then for the corresponding absolute value of voltage | Vij-Vaver |, with predetermined threshold value VδIt is compared.
When absolute value is more than predetermined threshold value, illustrates the operation irregularity of battery component 210, break down.
In another specific embodiment, as shown in fig. 7, judge the step of there is failure in battery component as：Step
S232B：Compare the size of each absolute value and predetermined threshold value, it is when absolute value is more than predetermined threshold value, the absolute value is corresponding
The number of the fault data of battery component adds one.
Step S233B：When the number of the fault data of some battery component reaches predetermined number, judge that the battery component is deposited
In failure.
In the present embodiment, to avoid not breaking down in battery component 210, but because accidental cause causes definitely
Value is more than predetermined threshold value, then can only have the absolute value number more than predetermined threshold value for working as some battery component 210 to reach default
During number, just judge that the battery component 210 has failure.
Specifically, in the present embodiment, for a certain battery component 210, its corresponding absolute value of certain state parameter
More than predetermined threshold value, then it is assumed that there is a fault data.For example, the corresponding absolute value of voltage of a certain battery component 210 |
Vij-Vaver | more than voltage predetermined threshold value, meanwhile, electric current | Iij-Iaver | default threshold of the corresponding absolute value also greater than electric current
Value, then it is assumed that the battery component 210 has two fault datas.
Further, in the present embodiment, the number statistics of fault data can be superimposed within a predetermined period of time.Due to
Two grades of status informations, one time point of correspondence obtained each time, the time point is to gather the state ginseng in two grades of status informations
At corresponding time point during number, do not stop to gather the state parameter of battery component 210, then constantly processing obtains second state information.
In predetermined amount of time, home server 120 is according to the number of the fault data of second state Information Statistics battery component 210.When
In preset time period, the number of the fault data of certain battery component 210 reaches predetermined number, then it is assumed that the battery component 210
There is failure.
In above two embodiment in the present embodiment, as shown in FIG. 6 and 7, step S230 also includes step
S234：The state parameter and component coding that home server will appear from the battery component of failure are sent to central server.This
Ground server 120 encodes the state parameter and component of the battery component 210 broken down in its corresponding monitoring subnet 110
Central server 130 is sent to, it is of course also possible to the other information of the battery component 210 of failure is sent, such as battery pack
The corresponding primary status information of part 210 or two grades of status informations etc. give central server 130.Certainly, home server 120
All data that itself can be received are sent to central server 130, are not intended as limiting in the present embodiment.
Because multiple servers are corresponded with monitoring subnet 110, it is possible to achieve to all monitoring coverages of subnet 110
The breakdown judge of interior battery component 210, so as to by the battery component of the presence failure in whole photovoltaic generating system 200
210 identify and are sent to central server 130, during what central server 130 was received is then whole photovoltaic generating system 200
There is the information of the battery component 210 of failure.
Step S240：The central server 130 receives the state parameter and component of the battery component 210 broken down
Coding.
Central server 130 receives the battery for the failure that all home servers 120 with its wireless connection are sent
The information of component 210, the information includes the component coding and state parameter of the battery component 210, and the state parameter can be only
It is greater than the corresponding state parameter of absolute value of predetermined threshold value or all state parameters of the battery component 210.When
So, if the information that home server 120 is sent also includes other, the information that central server 130 is received also includes other.
Step S250：The central server 130 is handled according to the information received.
Central server 130 is received after the information of the transmission of home server 120, alignment processing.In a kind of specific reality
Apply in mode, central server 130 sends out the state parameter of the battery component 210 of the presence failure received and component coding
Mobile terminal 1 40 is given, mobile terminal 1 40 can be shown the information received so that user is known with battery in time
There is failure in component 210, know that specific which battery component 210 has failure, the battery component 210 that there is failure is entered
Row is accurately positioned.
In summary, the fault monitoring method and system of photovoltaic module provided in an embodiment of the present invention, by each light
Each battery component arrangement of photovoltaic generating system includes the information collecting device of sensor, then sets wireless with information collecting device
The router of connection, the telegon with router wireless connection, the home server with telegon wireless connection, with local service
The central server of device wireless connection, so as to build radio sensing network, easily gathers the shape in whole photovoltaic generating system
State parameter.
Also, the state parameter for collecting sensor is processed as primary status letter in information collecting device through first time
Breath, removes partial redundance data, then through two grades of status informations of router processor, further removes redundant data, removes redundancy
The data of data efficiency of transmission in radio sensing network is higher.Also, two grades of status informations that router is obtained are sent to
Home server, home server may determine that according to the state parameter of each battery component in two grades of status informations of acquisition
There is the battery component of failure, and will determine that result is sent to central server, central server receives all local services
The judged result that device is sent, can know there is the battery component information of failure in whole photovoltaic generating system.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it can also pass through
Other modes are realized.Device embodiment described above is only schematical, for example, flow chart and block diagram in accompanying drawing
Show according to the device of multiple embodiments of the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.At this point, each square frame in flow chart or block diagram can represent the one of a module, program segment or code
Part a, part for the module, program segment or code is used to realize holding for defined logic function comprising one or more
Row instruction.It should also be noted that in some implementations as replacement, the function of being marked in square frame can also with different from
The order marked in accompanying drawing occurs.For example, two continuous square frames can essentially be performed substantially in parallel, they are sometimes
It can perform in the opposite order, this is depending on involved function.It is also noted that every in block diagram and/or flow chart
The combination of individual square frame and block diagram and/or the square frame in flow chart, can use the special base for performing defined function or action
Realize, or can be realized with the combination of specialized hardware and computer instruction in the system of hardware.
In addition, each functional module in each embodiment of the invention can integrate to form an independent portion
Point or modules individualism, can also two or more modules be integrated to form an independent part.
If the function is realized using in the form of software function module and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.Need
Illustrate, herein, such as first and second or the like relational terms be used merely to by an entity or operation with
Another entity or operation make a distinction, and not necessarily require or imply between these entities or operation there is any this reality
The relation or order on border.Moreover, term " comprising ", "comprising" or its any other variant are intended to the bag of nonexcludability
Contain, so that process, method, article or equipment including a series of key elements are not only including those key elements, but also including
Other key elements being not expressly set out, or also include for this process, method, article or the intrinsic key element of equipment.
In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including the key element
Process, method, article or equipment in also there is other identical element.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.It should be noted that：Similar label and letter exists
Similar terms is represented in following accompanying drawing, therefore, once being defined in a certain Xiang Yi accompanying drawing, is then not required in subsequent accompanying drawing
It is further defined and explained.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of fault monitoring system of photovoltaic module, it is characterised in that for the malfunction monitoring of photovoltaic generating system, the light
Photovoltaic generating system includes multiple battery components, and the monitoring system includes：
Multiple monitoring subnets, each monitoring subnet includes network access device and multiple information collecting devices, each monitoring
The information collecting device of net and network access device wireless connection, the multiple information collecting device are respectively arranged at different electricity
Pond component, for gathering the state parameter of set battery component and being processed as primary status information, information collecting device is also
For the primary status information of acquisition to be sent into the network access device, the network access device is used for the first of acquisition
Level status information is processed as two grades of status informations；
The multiple home servers equal with monitoring subnet number, the multiple home server and the multiple monitoring subnet
Network access device corresponds wireless connection, and each home server of the multiple home server is used to receive and its nothing
The two grades of status informations obtained after the network access device processing of line connection, home server is additionally operable to two grades of shapes according to acquisition
State information judges that photovoltaic generating system whether there is failure；
Central server, with the multiple home server wireless connection, receives multiple local clothes described in photovoltaic generating system
Business device judges the information that there is the battery component of failure.
2. system according to claim 1, it is characterised in that the network access device includes router and coordination
Device, the router and the telegon wireless connection, wherein, the router and multiple information collecting device wireless connections,
The telegon and the home server wireless connection.
3. system according to claim 1, it is characterised in that described information harvester includes wireless communication module, place
Device and multiple sensors are managed, the multiple sensors are used for the different conditions parameter for gathering the battery component, the processing
The state parameter that device is used to collect sensor is processed as primary status information, and the wireless communication module will be used for after handling
Primary status information be sent to the network access device.
4. system according to claim 1, it is characterised in that also including mobile terminal, the mobile terminal with it is described in
Central server wireless connection, the information that the central server is additionally operable to the battery component for the presence failure that will be received is sent to
The mobile terminal.
5. a kind of fault monitoring method of photovoltaic module, it is characterised in that applied to the light described in any one of Claims 1-4
The fault monitoring system of component is lied prostrate, wherein,
At least the one of the battery component of the information collecting device is provided with each information collecting device collection photovoltaic generating system
State parameter is planted, and the state parameter of acquisition is handled, the primary status information of each battery component of correspondence is obtained, it is described
The subnet coding of monitoring subnet where primary status information includes the battery component, the component coding of the battery component and the electricity
The primary status information of acquisition is sent to network access device by all state parameters of pond component, information collecting device；
Network access device receives the primary status information that multiple information collecting devices are sent, and by all primary shapes received
State information processing is two grades of status informations, the subnet of monitoring subnet where two grades of status informations include the network access device
The status data for all battery components that coding and the network access device are received, the state data packets of each battery component
The component coding of the battery component and all state parameters of the battery component are included, the network access device will be handled and obtained
Two grades of status informations be sent to home server；
The home server is default according to every kind of state parameter of two grades of status informations of acquisition and each battery component
Average judges whether each battery component breaks down, and will appear from the state parameter and component volume of the battery component of failure
Code is sent to central server；
The central server receives the state parameter and component coding of the battery component broken down,
The central server is handled according to the information received.
6. method according to claim 5, it is characterised in that the home server is according to two grades of status informations of acquisition
And the default average of every kind of state parameter of each battery component judges that the step of whether each battery component breaks down is wrapped
Include：
The home server calculates each state parameter and the absolute value of the difference of the default average of the state parameter；
Compare the size of each absolute value and predetermined threshold value, when absolute value is more than predetermined threshold value, judge that the absolute value is corresponding
There is failure in battery component.
7. method according to claim 5, it is characterised in that the home server is according to two grades of status informations of acquisition
And the default average of every kind of state parameter of each battery component judge each battery component whether break down including：
The home server calculates each state parameter and the absolute value of the difference of the default average of the parameter；
Compare the size of each absolute value and predetermined threshold value, when absolute value is more than predetermined threshold value, by the corresponding electricity of the absolute value
The number of the fault data of pond component adds one；
When the number of the fault data of some battery component reaches predetermined number, judge that the battery component has failure.
8. method according to claim 5, it is characterised in that the network access device includes the road of mutual wireless connection
By device and telegon, the network access device by the step of all primary status information processings received, including：
The router receives the primary status information that multiple information collecting devices are sent, and by all primary status received
Information processing is two grades of status informations；
Two grades of status informations that router processing is obtained are sent to home server by the telegon.
9. method according to claim 5, it is characterised in that described information harvester includes wireless communication module, place
Manage in device and at least one sensor, described information harvester collection photovoltaic generating system and the information collecting device is set
The step of at least one state parameter of battery component, includes：
The battery component of the information collecting device is provided with least one sensor collection photovoltaic generating system at least
A kind of state parameter, and the state parameter collected is sent to processor；
Processor receives every kind of state parameter that the sensor is sent, and the state parameter received is handled, and obtains
The primary status information of correspondence battery component；
The primary status information that processor processing is obtained is sent to network access device by wireless communication module.
10. method according to claim 5, it is characterised in that the fault monitoring system of the photovoltaic module also includes moving
Dynamic terminal, the central server includes according to the information progress processing received：
The state parameter of the battery component of the presence failure received and component coding are sent to institute by the central server
State mobile terminal.
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| CN107017835B (en) | 2018-10-12 |
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Address after: 445000 Xueyuan Road, Enshi Tujia and Miao Autonomous Prefecture, Enshi, No. 39, China Patentee after: Hubei National University Address before: 445000 Xueyuan Road, Enshi Tujia and Miao Autonomous Prefecture, Enshi, No. 39, China Patentee before: Hubei Institute for Nationalities |