CN107017835B - 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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- 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 present invention provides a kind of fault monitoring system of photovoltaic module and methods, are used 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 subnet that monitors includes network access device and multiple information collecting devices, and each information collecting device for monitoring subnet is wirelessly connected with network access device, and the multiple information collecting device is respectively arranged at different battery components；The network access device of the multiple local servers equal with monitoring subnet number, the multiple local server and the multiple monitoring subnet, which corresponds, to be wirelessly connected；Central server is wirelessly connected with the multiple local server.
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, go deep into the development of solar photovoltaic technology and energy conservation and environmental protection theory, photovoltaic hair
Electricity has been widely used, 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 to AC load or be connected to power grid, each battery component is formed by connecting by multiple single batteries.
In large-scale photovoltaic generating system, when some battery component break down, as on 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 that is blocked
Part will seriously generate heat at this time, and this serious fever can cause solar cell module very seriously destruction, there is illumination
Battery caused 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 seriously affects 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., is had battery component and monitoring system
Line connects to obtain the relevant information of battery component.But wired connection mode, cumbersome, of high cost, maintainable difference is connected up, it is special
It is not for large-scale photovoltaic generating system.
Invention content
In view of this, an embodiment of the present invention provides a kind of fault monitoring system of photovoltaic module and method, nothing will be used
Line sensing network is monitored 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 the cumbersome and maintainability difference of system.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
A kind of fault monitoring system of photovoltaic module is used 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 subnet that monitors includes network access device
And multiple information collecting devices, each information collecting device for monitoring subnet is wirelessly connected with network access device, described more
A information collecting device is respectively arranged at different battery components, the state parameter for acquiring set battery component and place
Reason is primary status information, and information collecting device, which is additionally operable to the primary status information of acquisition being sent to the network connection, to be set
Standby, the primary status information processing that the network access device is used to obtain is two level status information；With monitoring subnet number
The network access device one of equal multiple local servers, the multiple local server and the multiple monitoring subnet is a pair of
It should be wirelessly connected, each local server of the multiple local server is set for receiving the network connection being wirelessly connected with it
The two level status information obtained after standby processing, local server are additionally operable to judge photovoltaic generation according to the two level status information of acquisition
System whether there is failure；Central server is wirelessly connected with the multiple local server, receives institute in photovoltaic generating system
Stating multiple local server judgements, there are the information of the battery component of failure.
A kind of fault monitoring method of photovoltaic module is 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 in harvester acquisition photovoltaic generating system, and
The state parameter of acquisition is handled, the primary status information of corresponding each battery component, the primary status information are obtained
Subnet coding, the component coding of the battery component including monitoring subnet where the battery component and owning for the battery component
The primary status information of acquisition is sent to network access device by state parameter, information collecting device；Network access device receives
The primary status information that multiple information collecting devices are sent, and be two level state by all primary status information processings received
Information, the two level status information include that the subnet coding of monitoring subnet where the network access device and the network connection are set
The status data of the status data of the standby all battery components received, each battery component includes the component volume of the battery component
The two level status information that processing obtains is sent to by all state parameters of code and the battery component, the network access device
Local server；The local server is according to the two level status information of acquisition and each state parameter of each battery component
Default mean value judge whether each battery component breaks down, and by the state parameter of the battery component of failure and
Component coding is sent to central server；The central server receives the state parameter and group of the battery component to break down
Part encodes, 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 have multiple monitoring subnets, utilize
Information collecting device carries out data acquisition to each battery component in monitoring subnet, and collected state parameter is sent to prison
The network access device in subnet is surveyed, network access device is then forwarded to local corresponding with place monitoring subnet after being handled
Server, local server is further processed and judges is in the monitoring range of the corresponding monitoring subnet of the local server
It is no to there is the faulty battery component of tool, and sent to the central server being wirelessly connected with all local servers and judge knot
Fruit.By being wirelessly connected between information collecting device, network access device, local server and central server, more
Convenient, maintenance cost is lower, also, can accurately be found out with failure to the analysis of the state parameter of collected battery component
Battery component, it is convenient and efficient.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 shows the interaction schematic diagram of the fault monitoring system for the photovoltaic module that first embodiment of the invention provides；
Fig. 2 shows the structure diagrams for the information collecting device that first embodiment of the invention provides；
Fig. 3 shows a kind of structure diagram for the router that first embodiment of the invention provides；
Fig. 4 shows a kind of structure diagram for the coordinator that first embodiment of the invention provides；
Fig. 5 shows the flow chart of the fault monitoring method for the photovoltaic module that second embodiment of the invention provides；
Fig. 6 shows the flow of the part steps of the fault monitoring method for the photovoltaic module that second embodiment of the invention provides
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 provides
Kind flow chart.
Specific implementation mode
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
The every other embodiment obtained under the premise of going out creative work, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.Meanwhile the present invention's
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply 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 for being monitored the failure of photovoltaic generating system 200, wherein photovoltaic generating system 200 includes multiple
Battery component 210, as shown in Figure 1, multiple battery component is the photovoltaic module of photovoltaic generating system.Also, battery component
210 particular number is not intended as limiting in the present embodiment, can be set according to actual needs.
Fig. 1 is referred to, shows multiple monitoring subnets 110 in the fault monitoring system 100 of the photovoltaic module and monitoring
The schematic diagram interacted between the equal multiple local servers 120 of 110 numbers of subnet and a central server 130.
Wherein, as shown in Figure 1, a monitoring subnet 110 corresponds to a local server 120 and interacts, different monitoring subnets 110
Corresponding different local server 120.Also, it monitors subnet 110 and local server 120, local server 120 is genuinely convinced in
Interaction between business device is the wireless interaction carried out by wireless network connection.Also, local server 120 and in it is genuinely convinced
Business device may each be network server, database server etc..
Specifically, each monitoring subnet 110 is used to monitor the battery component 210 of predetermined quantity, battery component is specifically monitored
210 quantity is not intended as limiting 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 determines.
Fig. 1 is referred to, each subnet 110 that monitors includes a network access device 111 and multiple information collecting devices
112, each 111 nothing of network access device for monitoring all information collecting devices 112 and the monitoring subnet 110 in subnet 110
Line connects.
In each monitoring subnet 110, the battery pack of the quantity of information collecting device 112 and the monitoring subnet 110 monitoring
The quantity of part 210 is consistent, and there are one information collecting devices 112 for the setting of each battery component 210, monitor multiple in subnet 110
Information collecting device 112 is respectively arranged at different battery components 210.Wherein, information collecting device 112 is for acquiring battery pack
The state parameter of part 210 and by collected state parameter processing be primary status information, and will processing obtain primary status
Information is sent to the network access device 111 being wirelessly connected with it.
It will of course be understood that, the state parameter that each information collecting device 112 acquires is that the information collecting device is arranged
The state parameter of 112 battery component 210.In the present embodiment, the state parameter of the acquisition of information collecting device 112 may include
One or more of 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 acquires can also include other, in the present embodiment not
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, it is electrically connected, locates between processor 112b and multiple sensors 112a
It is electrically connected between reason device 112b and wireless communication module 112c, also, processor 112b and wireless communication module 112c can collect
As a chip, it can also be different chip, be 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, which can be CC2530.
In information collecting device 112, different sensor 112a is for acquiring the battery in the multiple sensors
The different conditions parameter of component 210, for example, the electric current of current sensor acquisition battery component 210, voltage sensor acquire battery
The voltage of component 210, the temperature of temperature sensor 112a acquisition battery components 210, light intensity sensor 112a acquire battery component
210 intensity of illumination.In addition, acquisition electric current can also be current sampling circuit, such as constantan wire, collection voltages can be with electricity
Sample circuit is pressed, such as resistor network, collecting temperature can be specially DS18B20, and acquire light intensity can be specially
TSL2561.In the present embodiment, the specific type of multiple sensors and the concrete model of each sensor be in this embodiment
It does not limit, also, the various parameters of even acquisition battery component 210 can not necessarily be limited to sensor 112a, also may be used
Be sample circuit or other.
In the information collecting device 112, processor 112b, which is used to handle the collected state parameters of sensor 112a, is
Primary status information, the wireless communication module 112c is for by treated, primary status information to be sent to the network connection
Equipment 111.
Further, as shown in Fig. 2, in the present embodiment, which further includes power module 112d,
Such as DC-DC module.Power module 112d is set 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 to receive the primary status letter of the transmission of information collecting device 112
Breath, it is possible to understand that, the primary status information that each network access device 111 receives 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 level status information, and be sent to local server 120, it is possible to understand that, network connection is set
Standby 111 local servers 120 sent are local server corresponding with monitoring subnet 110 where the network server 120.
Further, in the present embodiment, as shown in Figure 1, each network access device 111 include router 111a and
Coordinator 111b, the router 111a and the coordinator 111b are wirelessly connected.Wherein, the router 111a and multiple letters
It ceases harvester 112 to be wirelessly connected, the coordinator 111b is wirelessly connected with the local server 120, as shown in Figure 1.Road
By device 111a for receiving primary status information, and it is processed into two level status information, is then forwarded to coordinator 111b, coordinated
The two level status information that router 111a is received is sent to local server 120 by device 111b.
In the present embodiment, router 111a and coordinator 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 using CC2530 modules as processing module into
Row data processing, as shown in Figure 3.Coordinator can carry out data processing, and coordinator using CC2530 modules as processing module
Can also include WiFi module, as shown in Figure 4.Certainly, in the present embodiment, router 111a's and coordinator 111b is specific
Structure is not intended as limiting.
The network access devices 111 of multiple local servers 120 provided in this embodiment and multiple monitoring subnets 110 are one by one
Corresponding to be wirelessly connected, then each local server 120 of the multiple local server 120 is used to receiving is wirelessly connected with it
The two level status information obtained after the processing of network access device 111.Also, each local server 120 is additionally operable to according to acquisition
Two level status information judge in photovoltaic generating system 200 it is corresponding with the local server 120 monitoring subnet 110 monitor electricity
Whether having battery component 210 in pond component 210, there are failures, and judgement result is sent to central server 130.
As shown in Figure 1, central server 130 is wirelessly connected with all local servers, for receiving all locals
Server 120 send to breakdown judge as a result, common, it is electricity there are failure that central server 130, which is used to receive,
The information of pond component 210.
Further, it in the fault monitoring system 100 of the photovoltaic module can also include mobile terminal 140, movement end
End 140 is wirelessly connected with central server 130.The mobile terminal can be PC (personal computer, PC),
The removable intelligence such as tablet computer, smart mobile phone, personal digital assistant (personal digital assistant, PDA) are set
It is standby.The central server 130 be additionally operable to by receive there are the information of the battery component 210 of failure to be sent to the movement
Terminal 140, then user whether can have in mobile terminal 140 knows photovoltaic generating system 200 battery component 210 exist therefore
Barrier, and can be found there are the battery component of failure according to the information of the battery component 210 of acquisition and be debugged 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 in each information collecting device acquisition photovoltaic generating system
At least one state parameter of component, and the state parameter of acquisition is handled, obtain the primary of corresponding each battery component
Status information, the primary status information include the group of the subnet coding of monitoring subnet where the battery component, the battery component
Part encodes and the primary status information of acquisition is sent to network by all state parameters of 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：It is provided with the information collection in at least one sensor 112a acquisition photovoltaic generating systems 200
At least one state parameter of the battery component 210 of device 112, and collected state parameter is sent to processor 112b；
Processor 112b receives each state parameter that the sensor 112a is sent, and the state parameter received is handled,
Obtain the primary status information of corresponding 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 a kind of state parameter of sensor acquisition, a sensor can acquire one or more state parameters.It is preferred that
, in the present embodiment, the number of corresponding each battery component, each sensor setting of setting is one, and processor is each
The number for obtaining the state parameter of each sensor acquisition is one.
In the present embodiment, the data shape of each collected state parameters of sensor 112a of information collecting device 112
Formula can be component coding+state parameter, which is encoded to the identity mark that sensor 112a corresponds to the battery component 210 of acquisition
Know, the identity of each battery component 210 has uniqueness, and the state parameter in the data mode is collected parameter
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 the monitoring subnet 110 of A, it is encoded to the battery component 210 of B with component, is set to the battery
The multiple state parameters for the B battery component 210 that the multiple sensors of the information collecting device 112 of component 210 obtain 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
+ voltage value；A+B+ current values；A+B+ temperature values；A+B+ light intensity values.
Since the data format of each state parameter is with 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.
It is that primary status is believed by the state parameter processing of the battery component 210 specifically, for each battery component 210
Breath, the data mode of the primary status information of acquisition are：Each state parameter of subnet coding+component coding+component.Continue with
Subnet is encoded to component in the monitoring subnet 110 of A and is encoded to for the battery component 210 of B, is set to the letter of the B battery component
The processor 112b of breath harvester 112 handles all state parameters of B battery component, obtained primary status information
Data mode be：A+B+ voltage values+current value+temperature value+light intensity value.By the institute of the entire photovoltaic generating system 200 of acquisition
There is the state parameter processing of battery component 210 for after primary status information, data volume eliminates part compared to smaller before processing
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 level status information, and the two level status information includes network access device place
The status data for all battery components that the subnet coding of monitoring subnet and the network access device receive, 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
The two level status information that processing obtains is sent to local server by equipment.
When network access device 111 includes the router 111a being mutually wirelessly connected and coordinator 111b, the step
In, the router 111a receives the primary status information of the transmission of multiple information collecting devices 112, and all first by what is received
Grade status information processing is two level status information；The two level status information that the coordinator 111b obtains router 111a processing
It is sent to local server 120.
Specifically, two level status information is to be further processed to primary status information, it will be in each monitoring subnet 110
The primary status information of all battery components 210 is merged, and is realized and is indicated all battery components 210 in the case where a subnet encodes
State parameter, with reduce monitor subnet 110 in data shared by data volume.
Specifically, the data mode of two level status information 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 level status information be acquire the state parameter when
Between put when battery component state parameter.
Continue by taking subnet is encoded to the monitoring subnet 110 of A as an example, the monitoring subnet 110 include component coding be respectively B,
C, the state parameter of the battery component 210 of D, each component includes voltage, electric current, temperature and light intensity, the then subnet obtained
Two level status information under coding is A+ (light intensity value of the temperature value+B of the current value+B of the voltage value+B of B+B)+(electricity of C+C
The light intensity value of the temperature value+C of the current value+C of pressure value+C)+(light intensity of the temperature value+D of the current value+D of the voltage value+D of D+D
Value).
In two level status information, only there is primary, each battery component 210 in each subnet coding for monitoring subnet 110
Component coding only occur primary, greatly reduce data occupied space, eliminate more redundant datas.When by two level shape
When state information is sent to local server 120, reduce the occupancy of network transmission resource, improve the timeliness of transmission, transmits
Speed is faster.
Step S230：The local server is according to the two level status information of acquisition and each shape of each battery component
The default mean value of state parameter judges whether each battery component breaks down, and the state of the battery component of failure is joined
Number and component coding are sent to central server.
Each local server 120 judges local server 120 corresponding monitoring by the status information received
With the presence or absence of the battery component 210 to break down in net 110.
Specifically, the step of whether battery component 210 that local server 120 judges to monitor in subnet 110 breaks down
Can be as shown in FIG. 6 and 7：Step S231：The local server 120 calculates each state parameter and the state parameter
Default mean value difference absolute value.
In the present embodiment, the default mean value 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, using the average value of the state parameter repeatedly obtained as the shape
The corresponding default mean value of state parameter.For example, the default mean value of voltage can be Vaver, which is to normal shape
The voltage of battery component under state carries out repeatedly acquisition averaged and obtains, and the default mean value of electric current can be Iaver, this is pre-
If mean value 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 level status information obtained due to local server 120
210 all state parameters can then calculate the absolute of each state parameter of each battery component 210 and the difference of default mean value
Value.Such as, to Mr. Yu's battery component 210, in two level status information, the voltage of the battery component 210 is Vij, then obtains the battery
The voltage value of component 210 and the absolute value of the difference of default mean value Vaver be | Vij-Vaver |.
In a kind of specific embodiment, as shown in fig. 6, there are the step of failure to be for judgement battery component 210：Step
S232A：The size for comparing each absolute value and predetermined threshold value judges that the absolute value corresponds to when absolute value is more than predetermined threshold value
Battery component there are failures.
The predetermined threshold value determines according to actual needs, and it is possible to each corresponding state parameter is set, such as voltage
One voltage threshold is set, and current threshold etc. is arranged in electric current.It is battery component for the predetermined threshold value of each state parameter
210 be in normal operating conditions when maximum value, when state parameter value be more than its corresponding predetermined threshold value, then illustrate battery pack
Part 210 breaks down.
Local server 120 compares the size for obtaining absolute value and predetermined threshold value, and predetermined threshold value corresponds to different conditions parameter
Setting, then the predetermined threshold value that absolute value is compared is the predetermined threshold value of the corresponding state parameter of the absolute value, pre- such as voltage
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, illustrate 210 operation irregularity of battery component, breaks down.
In another specific embodiment, as shown in fig. 7, there are the step of failure to be for judgement battery component：Step
S232B：The size for comparing 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 absolutely
Value is more than predetermined threshold value, then only can reach default when the absolute value number more than predetermined threshold value of some battery component 210
When number, just judge that there are failures for the battery component 210.
Specifically, in the present embodiment, for a certain battery component 210, the corresponding absolute value of certain state parameter
More than predetermined threshold value, then it is assumed that there are a fault datas.For example, the corresponding absolute value of the voltage of a certain battery component 210 |
Vij-Vaver | it is 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 there are two fault datas for the battery component 210.
Further, in the present embodiment, the number statistics of fault data can be superimposed within a predetermined period of time.Due to
The two level status information obtained each time corresponds to a time point, which is the state ginseng acquired in the two level status information
Corresponding time point when number does not stop the state parameter for acquiring battery component 210, then constantly processing obtains second state information.
In predetermined amount of time, local server 120 is according to the number of the fault data of second state Information Statistics battery component 210.When
Within a preset period of time, the number of the fault data of certain battery component 210 reaches predetermined number, then it is assumed that the battery component 210
There are failures.
In above two embodiment in the present embodiment, as shown in FIG. 6 and 7, step S230 further includes step
S234：The state parameter of the battery component of failure and component coding are sent to central server by local server.This
Ground server 120 encodes the state parameter of the battery component 210 to break down in its corresponding monitoring subnet 110 and component
It is sent to central server 130, it is of course also possible to the other information of the battery component 210 of failure be sent, such as the battery pack
210 corresponding primary status information of part or two level status information etc. give central server 130.Certainly, local server 120
All data that itself can be received are sent to central server 130, are not intended as limiting in the present embodiment.
Since multiple servers and monitoring subnet 110 correspond, may be implemented to all 110 coverage areas of monitoring subnet
The breakdown judge of interior battery component 210, so as to by entire photovoltaic generating system 200 there are the battery components of failure
210 identify and are sent to central server 130, and what central server 130 received is then in entire photovoltaic generating system 200
There are 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 to break down
Coding.
Central server 130 receives the battery for the failure that all local servers 120 being wirelessly connected with it are sent
The information of component 210, the information include the component coding and state parameter of the battery component 210, which can be only
It is greater than the corresponding state parameter of absolute value of predetermined threshold value, can also be all state parameters of the battery component 210.When
So, if the information that local server 120 is sent further includes other, the information that central server 130 receives also includes other.
Step S250：The central server 130 is handled according to the information received.
After central server 130 receives the information of the transmission of local server 120, alignment processing.In a kind of specific reality
Apply in mode, central server 130 will receive there are the state parameter of the battery component 210 of failure and component coding hair
Mobile terminal 140 is given, mobile terminal 140 can be shown the information received so that user is known in time with battery
Component 210 knows specific which battery component 210 there are failure there are failure, to the battery component 210 there are failure into
Row is accurately positioned.
In conclusion 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 is arranged wireless with information collecting device
The router of connection, the coordinator being wirelessly connected with router, the local server being wirelessly connected with coordinator, with local service
The central server that device is wirelessly connected easily acquires the shape in entire photovoltaic generating system to build wireless sensor network
State parameter.
Also, the collected state parameter of sensor is believed through first time processing for primary status in information collecting device
Breath removes partial redundance data, then through router processor two level status information, further removes redundant data, removes redundancy
The data of data efficiency of transmission higher in wireless sensor network.Also, the two level status information that router obtains is sent to
Local server, local server may determine that according to the state parameter of each battery component in the two level status information of acquisition
There are the battery components of failure, and will determine that result is sent to central server, and central server receives all local services
The judging result that device is sent, can know the battery component information there are failure in entire photovoltaic generating system.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, the flow chart in attached drawing and block diagram
Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code
Part, a part for the module, section or code, which includes that one or more is for implementing the specified logical function, to be held
Row instruction.It should also be noted that at some as in the realization method replaced, the function of being marked in box can also be to be different from
The sequence marked in attached drawing occurs.For example, two continuous boxes can essentially be basically executed in parallel, they are sometimes
It can execute in the opposite order, this is depended on the functions involved.It is also noted that every in block diagram and or flow chart
The combination of box in a box and block diagram and or flow chart can use function or the dedicated base of action as defined in executing
It realizes, or can be realized using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each function module in each embodiment of the present invention can integrate to form an independent portion
Point, can also be modules individualism, can also two or more modules be integrated to form an independent part.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.It needs
Illustrate, herein, relational terms such as first and second and the like be used merely to by an entity or operation with
Another entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this realities
The relationship or sequence on border.Moreover, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should be noted that：Similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and is explained.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of fault monitoring system of photovoltaic module, which is characterized in that be used 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 subnet that monitors includes network access device and multiple information collecting devices, each monitoring
The information collecting device of net is wirelessly connected with network access device, and the multiple information collecting device is respectively arranged at different electricity
Pond component, state parameter and processing for acquiring set battery component are primary status information, and information collecting device is also
For the primary status information of acquisition to be sent to the network access device, the network access device is used to obtain first
Grade status information processing is two level status information；The primary status information includes the subnet of monitoring subnet where the battery component
Coding, the component coding of the battery component and all state parameters of the battery component, information collecting device will be at the beginning of acquisitions
Grade status information is sent to network access device；
The two level status information includes that the subnet coding of monitoring subnet where the network access device and the network connection are set
The status data of the status data of the standby all battery components received, each battery component includes the component volume of the battery component
The two level status information that processing obtains is sent to by all state parameters of code and the battery component, the network access device
Local server；The multiple local servers equal with monitoring subnet number, the multiple local server and the multiple prison
The network access device for surveying subnet corresponds wireless connection, and each local server of the multiple local server is for connecing
The two level status information obtained after the network access device processing being wirelessly connected with it is received, local server is additionally operable to according to acquisition
Two level status information judge that photovoltaic generating system whether there is failure, and by the state parameter of the battery component of failure
And component coding is sent to central server；
Central server is wirelessly connected with the multiple local server, receives multiple local clothes described in photovoltaic generating system
Device judgement be engaged in there are the information of the battery component of failure, the battery component information of the failure includes the shape of the battery component of failure
State parameter and component coding.
2. system according to claim 1, which is characterized in that the network access device includes router and coordination
Device, the router are wirelessly connected with the coordinator, wherein and the router is wirelessly connected with multiple information collecting devices,
The coordinator is wirelessly connected with the local server.
3. system according to claim 1, which is characterized in that described information harvester includes wireless communication module, place
Device and multiple sensors are managed, the multiple sensors are used to acquire the different conditions parameter of the battery component, the processing
Device is used to the collected state parameter processing of sensor be primary status information, and the wireless communication module will be for after handling
Primary status information be sent to the network access device.
4. system according to claim 1, which is characterized in that further include mobile terminal, the mobile terminal with it is described in
Central server be wirelessly connected, the central server be additionally operable to by receive there are the information of the battery component of failure to be sent to
The mobile terminal.
5. a kind of fault monitoring method of photovoltaic module, which is characterized in that be applied to Claims 1-4 any one of them light
Lie prostrate the fault monitoring system of component, wherein
At least the one of the battery component of the information collecting device is provided in each information collecting device acquisition photovoltaic generating system
Kind state parameter, and the state parameter of acquisition is handled, the primary status information of corresponding each battery component is obtained, it is described
Primary status information includes the component coding and the electricity of the subnet coding of monitoring subnet where the battery component, the battery component
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 all primary shapes that will be received
State information processing is two level status information, and the two level status information includes the subnet of monitoring subnet where the network access device
The status data for all battery components that coding and the network access device receive, 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 obtains processing
Two level status information be sent to local server；
The local server is according to the default of the two level status information of acquisition and each state parameter of each battery component
Mean value judges whether each battery component breaks down, and the state parameter of the battery component of failure and component are compiled
Code is sent to central server；
The central server receives the state parameter and component coding of the battery component to break down,
The central server is handled according to the information received.
6. according to the method described in claim 5, it is characterized in that, the local server is according to the two level status information of acquisition
And the default mean value of each state parameter of each battery component judges that the step of whether each battery component breaks down is wrapped
It includes：
The local server calculates the absolute value of each state parameter and the difference of the default mean value of the state parameter；
The size for comparing each absolute value and predetermined threshold value judges that the absolute value is corresponding when absolute value is more than predetermined threshold value
There are failures for battery component.
7. according to the method described in claim 5, it is characterized in that, the local server is according to the two level status information of acquisition
And the default mean value of each state parameter of each battery component judge each battery component whether break down including：
The local server calculates the absolute value of each state parameter and the difference of the default mean value of the parameter；
The size for comparing 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 there are failures for the battery component.
8. according to the method described in claim 5, it is characterized in that, the network access device includes the road being mutually wirelessly connected
By device and coordinator, the step of all primary status information processings that the network access device will receive in, including：
The router receives the primary status information that multiple information collecting devices are sent, and all primary status that will be received
Information processing is two level status information；
The two level status information that router processing obtains is sent to local server by the coordinator.
9. according to the method described in claim 5, it is characterized in that, described information harvester includes wireless communication module, place
Device and at least one sensor are managed, the information collecting device is set in described information harvester acquisition photovoltaic generating system
The step of at least one state parameter of battery component includes：
It is provided with the battery component of the information collecting device at least at least one sensor acquisition photovoltaic generating system
A kind of state parameter, and collected state parameter is sent to processor；
Processor receives each state parameter that the sensor is sent, and the state parameter received is handled, and obtains
The primary status information of corresponding battery component；
The primary status information that processor processing obtains is sent to network access device by wireless communication module.
10. according to the method described in claim 5, it is characterized in that, the fault monitoring system of the photovoltaic module further includes moving
Dynamic terminal, the central server carry out processing according to the information received and include：
The central server will receive there are the state parameter of the battery component of failure and component coding be sent to institute
State mobile terminal.
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| CN110995156B (en) * | 2019-12-25 | 2021-06-29 | 湖南安华源电力科技有限公司 | Fault detection method and system for photovoltaic array |
| CN112098859B (en) * | 2020-11-23 | 2021-02-02 | 广州汽车集团股份有限公司 | Fuel cell fault diagnosis method and device |
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| KR200457335Y1 (en) * | 2011-05-25 | 2011-12-15 | 주식회사 앤엠에스 | Smart photovoltaic power generation system |
| CN104601086A (en) * | 2015-01-29 | 2015-05-06 | 湖北民族学院 | PV (Photovoltaic) power generation system and fault detection method thereof |
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| CN105591614A (en) * | 2014-10-22 | 2016-05-18 | 信邦电子股份有限公司 | Monitoring system of solar battery array and monitoring method thereof |
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| KR200457335Y1 (en) * | 2011-05-25 | 2011-12-15 | 주식회사 앤엠에스 | Smart photovoltaic power generation system |
| CN105591614A (en) * | 2014-10-22 | 2016-05-18 | 信邦电子股份有限公司 | Monitoring system of solar battery array and monitoring method thereof |
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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 |