CN108011584A - Photovoltaic cell is monitored on-line and intelligent management system - Google Patents
Photovoltaic cell is monitored on-line and intelligent management system Download PDFInfo
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- CN108011584A CN108011584A CN201610981836.3A CN201610981836A CN108011584A CN 108011584 A CN108011584 A CN 108011584A CN 201610981836 A CN201610981836 A CN 201610981836A CN 108011584 A CN108011584 A CN 108011584A
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photovoltaic Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention mainly relates to a kind of photovoltaic cell on-line monitoring and intelligent management system, can be in real time to the voltage of every piece of solar panel in photovoltaic module array, the call parameter such as electric current and temperature carries out real-time on-line monitoring, the call parameters such as the voltage and current of battery string formation connected and composed by the series connection of multiple photovoltaic cells also can be by real time and on line monitoring, a part of data are passed to cloud server and are stored in locally as persistent data as light weight level data and by a part of data by data collector, light weight level data can be read beyond the clouds or locally reads persistent data in data collector, so as to which the true operating status for electrolytic cell and the fault location for solving battery etc. provide foundation.
Description
Technical field
Present invention relates generally to field of photovoltaic power generation, exactly, is to provide a kind of photovoltaic cell on-line monitoring and intelligence
Energy management system, in real time can carry out the call parameters such as voltage, electric current and the temperature of every piece of solar panel in photovoltaic module array
The call parameter such as real-time on-line monitoring, the voltage and current of battery string formation connected and composed by the series connection of multiple photovoltaic cells also can
By real time and on line monitoring, foundation is provided to monitor fault location of the true operating status of battery and solution battery etc..
Background technology
Increasingly serious with environment and traditional energy problem, photovoltaic power generation technology is by more and more countries and regions
Pay attention to and be regarded as first developing object, and photovoltaic generation is most ripe in new energy power generation technology again and most develops
One of scale power generation mode of condition.The solar battery array used in photovoltaic plant the i.e. solar panel based on silicon substrate,
It is the most crucial part in solar photovoltaic generation system, and solar energy photon is exactly converted into electric energy by its main function, from
And further inversion is carried out to exchange by direct current and promote loaded work piece.Solar panel is in the direction of current main-stream technology point
For single crystal silicon solar cell, polycrystalline silicon solar cell, non-crystal silicon solar cell etc., since silion cell makes what this area required
The service life of more than 20 years is generally up to the time limit, so the chronicity and durability monitoring to solar panel are essential.Again
Person is it is a known problem that several factors can all cause the decrease of power generation of photovoltaic module, such as between photovoltaic module itself
Manufacturing variation, installation difference or shadow occlusion or maximum power tracing adaptation etc. under factor can all cause efficient.With shade
Exemplified by blocking, after such as fruit part photovoltaic module is blocked by cloud or building or the shadow of the trees or dirt analogue, members
It will be become to load and no longer produce electricl energy by power supply, when occurring with a string of solar panels because homogeneity of product problem is bad or hair
For raw shadow occlusion when causing percentage of batteries to be unable to normal power generation, the loss in efficiency of the battery string formation of whole string is very serious and inverse
Become the especially centralized inverter access of device panel array it is many when, can cause the solar panel of each string formation can not be
The maximum power point operation of oneself, these are all the inducements of the loss of electric energy and generated energy.In addition the problem of, is, due to photovoltaic group
Part may be higher in the serious local local temperature of generation hot spot effect, and some is even more than 150 DEG C, causes component regional area
Burn or form blackening, solder joint thawing, encapsulating material aging, glass rupture, welding corrosion etc. permanent damage, to photovoltaic module
Safety and reliability cause hidden danger greatly.
Has no doubt, photovoltaic plant/system urgent problem to be solved is exactly, real time monitoring to photovoltaic module and to photovoltaic
The intelligent management of battery, specific demand are can to observe the working status of each piece of mounted photovoltaic battery panel in real time,
Early warning reliably extremely can be carried out to abnormal conditions such as the excess temperature of photovoltaic module, overvoltage, overcurrent and output terminal short circuits and taken
Corresponding protection mechanism, this takes the battery string formation being abnormal similar to component level active safety shut-off or other emergent
Measure is very significant.In order to realize these predetermined targets, photovoltaic cell that the application subsequently introduces on-line monitoring and
Intelligent management system, can also be all real by all running parameters of photovoltaic cell in addition to preferable data acquisition ability
The reflection of when property has in the equipment such as the mobile phone of user terminal or computer on transient data and the communication mechanism of historical data
Suitching type function that is more reliable and saving flow, it is quickly fixed that it performs photovoltaic cell for photovoltaic plant fault alarm, failure
Position etc. provides suitable solution, suitable for the grid-connected or off-network photovoltaic generating system of different scales.
The content of the invention
In one embodiment, a kind of photovoltaic cell on-line monitoring and intelligent management system of present disclosure, including：For
The solar panel monitor of every piece of photovoltaic cell configuration, for gathering the assigned work parameter of photovoltaic cell；Decode solar panel monitoring
The decoder for the data that device is sent in a manner of power line carrier, PLC；At least it is used for the data acquisition of the data of Rcv decoder transmission
A part of data are passed to cloud server and are stored in data as light weight level data and by a part of data by device, data collector
Collector is locally as persistent data；Wherein：Mobile terminal or computer equipment are directly accessed when reading light weight level data
Cloud server, so as to promptness the acquisition data amount light weight level data smaller than persistent data；And mobile terminal or
Computer equipment accesses and reading and saving is in the persistent data of data collector local, is responsible for establishing by cloud server and moves
Dynamic communication between terminal or computer equipment and data collector.
Above-mentioned photovoltaic cell on-line monitoring and intelligent management system, solar panel monitor are transferred to the first set of decoder
Parameter includes at least voltage, the battery temperature of photovoltaic cell；Thereby lightweight, persistent data include at least every piece of photovoltaic
Voltage, the battery temperature of battery.
Above-mentioned photovoltaic cell on-line monitoring and intelligent management system, each battery string formation is by multiple photovoltaics being connected in series
Battery is formed, and in multiple battery string formations, second set of parameter that data collector is transferred to by a detection module includes at least
The tandem voltage of each the battery string formation sensed by detection module and the tandem electric current for flowing through each battery string formation；It is thereby light
Every piece of solar panel that the tandem electric current and data collector of magnitude, persistent data including at least each battery string formation calculate
In the generated energy of predetermined amount of time, persistent data also includes at least the tandem voltage of each battery string formation.
Above-mentioned photovoltaic cell on-line monitoring and intelligent management system, photovoltaic combiner box is also to the direct current of multiple battery string formations
Voltage and current converges, photovoltaic combiner box be transferred to data collector the 3rd set of parameter monitor confluence including at least it after
Busbar voltage and bus current；Thereby light weight level data includes at least the busbar voltage on each bus rod.
Above-mentioned photovoltaic cell on-line monitoring and intelligent management system, wherein environment monitor is also to residing for the photovoltaic cell
The environment of position is monitored, and the 4th set of parameter that environment monitor is transferred to data collector includes at least environment monitor institute
The environmental data monitored；Thereby lightweight, persistent data include at least environmental data.
Above-mentioned photovoltaic cell on-line monitoring and intelligent management system, further include one relative to data collector as master
The communication processor of machine, for data collector as slave, communication processor is used for the data for receiving data collector storage at this time.
Above-mentioned photovoltaic cell on-line monitoring and intelligent management system, data collector further include one based on Ethernet reality
The time service module of existing time synchronization, the time service module is also to decoder time service.
Above-mentioned photovoltaic cell on-line monitoring and intelligent management system, mobile terminal or computer equipment are monitoring photovoltaic
The part assigned work parameter of battery above or below setting threshold value when send alarm signal immediately.
Above-mentioned photovoltaic cell on-line monitoring and intelligent management system, it will be appreciated that data collector is decoded except receiving
Beyond the data of device transmission, additionally it is possible to other data as the power electronic equipment of slave devices are received as host, such as
Data of these power electronic equipments in the offer such as the most common header box of field of photovoltaic power generation or inverter.
Above-mentioned photovoltaic cell on-line monitoring and intelligent management system, each battery string formation is by multiple photovoltaics being connected in series
Battery is formed, and in multiple battery string formations, second set of parameter that data collector is transferred to by a detection module includes at least
The arc information of each the battery string formation sensed by detection module；Thereby lightweight, persistent data include at least every
The arc information of a battery string formation.
Above-mentioned photovoltaic cell on-line monitoring and intelligent management system, each battery string formation is by multiple photovoltaics being connected in series
Battery is formed, and the direct current of their generations of multiple battery string formations is supplied to inverter to carry out inversion grid connection, and inverter is transferred to number
The failure of the output power of inverter, the accumulative total of generating electricity of inverter, inverter is included at least according to the 5th set of parameter of collector
Economical and inverter the energy-saving and emission-reduction of the magnitude of voltage, inverter of each battery string formation that warning message, inverter internal calculate
The data such as value, lightweight include at least the fault alarm information of inverter, and persistent data includes at least all the 5th set of parameters.
In another embodiment, the present invention discloses one kind photovoltaic cell monitor on-line and intelligent management system in it is real
The monitoring method of existing battery parameter, reads under the operating mode of light weight level data in mobile terminal or computer equipment：It is mobile whole
End or computer equipment establish directly access mechanism by way of Ethernet or wireless communication with cloud server；In movement
Terminal or computer equipment are read under the operating mode of persistent data：Mobile terminal or computer equipment first give cloud server
Logging request is sent, cloud server verification logs in legal rear permission mobile terminal or computer equipment is established with cloud server
Connection；Data collector circulates the request for being sent to cloud server and communication being set up with mobile terminal or computer equipment,
In the case that mobile terminal or computer equipment are connected with cloud server, cloud server is by mobile terminal or computer equipment
IP address respective with data collector and corresponding port numbers are sent respectively to other side, so that mobile terminal or computer equipment
Communication is directly established without cloud server between data collector.
Above-mentioned method, when mobile terminal or computer equipment and data collector are listening to the IP address of other side each other
Behind port：Mobile terminal or computer equipment first send first to the home address of data collector and shake hands instruction, if several
According to collector response first shake hands instruction and shake hands successfully then their both sides begin setting up communication transmit data, failing to respond
First shake hands instruction and shake hands failure then mobile terminal or computer equipment request cloud server notice data collector to move
The external address of dynamic terminal or computer equipment sends second and shakes hands instruction；Held in mobile terminal or computer equipment response second
Finger makes and then their both sides begin setting up the communication of asymmetrical network and transmit data when shaking hands successfully, failing to responding the
Two shake hands instruction and failure of shaking hands then is switched to the Working mould for making mobile terminal or computer equipment read light weight level data
Formula.
The characteristics of photovoltaic cell on-line monitoring and intelligent management system, is：The voltage of component level battery, electric current, temperature with
And the real time monitoring of generated energy, offline/turn-off function of photovoltaic module can greatly strengthen photovoltaic system/power station reliability and
Security, can switch when user reads the parameter of photovoltaic cell between light weight level data and weight level data, ensure number
According to communication it is smooth under the premise of the splendid data traffic intelligent Matching for considering user and reduce user and downloading and monitoring number
According to when flow expend and network congestion.This photovoltaic cell on-line monitoring and intelligent management system are a kind of intelligent and easy
The remote data management platform of operation, data real-time update speed is fast, can be installed simultaneously on newly-built or built photovoltaic system/power station
And compatible current various communication protocols, suitable for large-scale and middle-size and small-size photovoltaic generating system.
According to industry in the experience of building a station of photovoltaic plant, the solar energy purchased from solar panel manufacturer hand at home and abroad
Battery module product, finds that 40 polylith defective works are relatively conventional ratios actually in about 10,000 pieces of solar panels, presses
The attention in this area especially large-sized photovoltaic power station should be caused from the point of view of this ratio.With China and American-European or Japan and other countries
The regular price purchase system FIT of it is proposed and the MW level photovoltaic business risen, its basic principle be to try to reduction power plant construction into
Originally and efficiency of investment is improved, therefore all want using lower-cost product and simplified monitoring system.Although photovoltaic products quality exists
Progressively stablize and improve, reliability also constantly raising, and also has to be known as in photovoltaic module manufacturer and can guarantee that more than 20 years quality
Enterprise, but according to the historical experience of industry development, does not ensure that more than 20 years these photovoltaic modulies even after more than ten years also
In the continuous firing of health, therefore the monitoring continued so for many years to photovoltaic module is particularly important.At least with photovoltaic module
The secure communication system for maintaining similar more than the 20 years service lifes is one of principal element for considering of the present invention, the battery sayed above
Plate monitor is namely based on this consider with the communication mode of power carrier.
The electronic device of entitled bypass diode is embedded with the circuit of solar panel, even if namely use percentage of batteries
Component, which is abnormal, to be become load, can also allow electric current to avoid this part to make the circuit design that output power will not reduce.It is tied
Even if fruit is exactly to have one piece of solar panel not generate electricity completely, battery string circuit where it, which can also ignore this block solar panel, to be continued to generate electricity.
But it is similar to for MW grades of this large scale systems of photovoltaic plant, bypass diode is more body in fact in a sense
Now to be an obstacle, because it can increase the difficulty for finding unqualified solar panel.In the block solar panel of thousands of quantity
Even if there are several pieces not generate electricity, want that it is extremely difficult to note abnormalities from overall generated energy.If electricity described above is not used
The monitoring method of pond string formation, can't find the solar panel of several pieces or more than ten pieces exceptions at all.Multiple battery component series connection connect at this time
A battery string formation is formed as soon as connecing, and whole photovoltaic array includes multiple such battery string formations, pays attention to the electric power sayed above
The propagation of carrier wave is namely based on this battery string formation and is coupled on power line, this beneficial effect be that it is any some
All uni-body components in battery string formation all have no omit be monitored, in this case, either several pieces or more than ten pieces or
Any number of exception solar panel can warn out from the APP modules of mobile phone or computer.
In this application, a part of data are passed to cloud server as light weight level data and by one by data collector
Divided data is stored in locally as persistent data, be because light weight level data it is not only particularly significant but also be need it is real-time
Moment reacts the data to user, then and this partial data amount just should not be very huge, from the point of view of user terminal, similar assembly hair
Given birth to it is abnormal this etc warning information namely small data quantity be easier to be read in time in transient state, then in data collector and
Real time data renewal is just particularly important between cloud server.But on the other hand, it is local in data collector
The persistent data of preservation is more important for the characteristic for understanding whole power station and photovoltaic module, this persistent data namely big number
According to the algorithm basis for being analysis luminous power generating system and photovoltaic module property.
Brief description of the drawings
Read it is described further below and with reference to the following drawings after, feature and advantage of the invention will be evident：
Fig. 1 is the photovoltaic cell on-line monitoring of the present invention and the exemplary applications schematic diagram of intelligent management system.
Embodiment
Below in conjunction with each embodiment, technical scheme is clearly completely illustrated, but described reality
It is only the present invention embodiment not all with the embodiment being described herein used in explanation to apply example, based on such embodiment, this area
The scheme that is obtained on the premise of creative work is not made of technical staff belong to protection scope of the present invention.
Referring to Fig. 1, simplified photovoltaic module array PV-ARR is the basis of photovoltaic generating system, is pacified in photovoltaic module array
Equipped with basic multiple battery string formations, each battery string formation is made of the photovoltaic cell 100 of multiple uni-body components.Each photovoltaic electric
Pond plate monitor 101 corresponds to and a photovoltaic cell 100 is in parallel, in order to realize data acquisition and the purpose of the monitoring photovoltaic cell
Plate monitor 101 is usually with acquisition modules such as temperature and voltage and current common in the art, for photovoltaic cell 100
Some assigned work parameters be acquired.And the purpose based on communication, the photovoltaic battery panel monitor 101 can also configure
There are carrier wave transmission and carrier receiving module, sent the data collected or running parameter by way of power line carrier, PLC
To PLC (Power Line Communication) decoder 111.For some any photovoltaic cell 100 for specifying and and it
For specified photovoltaic battery panel monitor 101 in parallel, the carrier signal which sends adds
It is loaded in the power transmission line of that battery string formation for having concatenated the photovoltaic cell 100 specified, that is to say, that same
The carrier wave that the respective photovoltaic battery panel monitor 101 in parallel of different photovoltaic cells 100 in a battery string formation is sent all loads
On the power transmission line of the same battery string formation, so that a battery string formation identical in the application is relative to traditional
Scheme can connect the photovoltaic module of greater number of photovoltaic cell 100 or more.As sensing and decode carrier signal
One side, decoder 111 usually carry sensor assembly and bandpass filter module and MUC/DSP processors etc., power transmission line
The letter of the carrier wave on transmission line is thereby detected by sensor assembly through sensor assembly (such as Roche air core coil sensor)
Number, and in order to accurately capture real carrier data and shielding noise, bandpass filter module senses sensor assembly
Carrier signal be filtered the real expected carrier signal of acquisition, then its processor again carries out the carrier wave of capture necessary
Analog-to-digital conversion and decoding.Decoder 111 can be integrated in detection module 112 or other arbitrary function modules in, certainly
It can be used alone, this is depending on actual application scenario, and (industry is also referred to as header box prison to detection module 112 sometimes
Survey device) it is frequently used in common header box 110 or inverter, it is mainly used for monitoring the tandem electric current I of battery string formationSTRWith/
Or sensing and the tandem voltage of computing battery string formation, Hall sensor are to detect the tandem electric current of battery string formation and be commonly used
Electric current induction mode, in addition also what deserves to be explained is, it is any in the prior art to detect or calculate battery pack
The means of the tandem electric current tandem voltage of string are suitable for detection module 112.In other alternative embodiments, decoder 111
Either the detection module 112 with decoder using sensor assembly and bandpass filter module can also mutually compatibility detection
Go out the arcing conditions in each battery string formation, the arc signal on transmission line is mainly frequency band difference than the difference of carrier wave.
Referring to Fig. 1, decoder 111 or other kinds of electronic equipment (such as header box or inversion with decoder 111
Device or other power equipments etc. with detection module 112) as slave data acquisition is sent data to by RS485 buses
Device 121, at this time data collector 121 be used as host.We define the first set parameter that above solar panel monitor 101 monitors
Voltage, battery temperature including at least photovoltaic cell 100 etc., then solar panel monitor 101 by first set parameter with carrier wave
Mode is loaded on transmission line, is transported to data collector 121 after it is captured and is decoded by decoder 111 again.
It is exactly the direct current to multiple battery string formations that one of header box 110, the main function of header box 110 is also used in some embodiments
Voltage and electric current converge, and the branch voltage electric current of each battery string formation is converged on busbar, are provided by header box enough
Inversion grid connection is carried out to busbar voltage via inverter again after big DC voltage value.In certain embodiments, header box 110 had been both
Any scheme of the prior art can be can also use using detection module 112 described above to detect or calculate each
The tandem voltage of battery string formation and the tandem electric current for flowing through each battery string formation, certainly can be with many photovoltaic generating system occasions
Inverter is directly used without using header box, such as the inverter of string type, then can also be undertaken at this time by inverter detection or
The task of the tandem voltage for calculating each battery string formation and the tandem electric current for flowing through each battery string formation, inverter was equally both
Any scheme that the prior art can be can also use using detection module 112 described above is electric to detect or calculate tandem
Pressure and tandem electric current.In an alternate embodiment of the invention, second set of parameter of data collector 121 is transferred to extremely by detection module 112
Few tandem voltage included by each battery string formation and the tandem electric current for flowing through each battery string formation, can also include for example electric
Other data such as arc information, at this time detection module 112 also serve as slave and data collector sent data to by RS485 buses
121, data collector 121 is used as host.
Referring to Fig. 1, we will not only monitor the parameter of battery itself in certain embodiments, it is also necessary to where monitoring battery
The geogen of position, it is also extra because the environment on battery component periphery directly affects the working status of battery
The environment detector 122 of use is used for gathering the surrounding enviroment data of photovoltaic cell, and environment detector is even various to humiture
The environmental parameters such as the component of gas can be measured accurately, and environment monitor 122 is transferred to the 4th set of ginseng of data collector 121
Number includes at least the environmental data that environment monitor 122 is monitored.Environment monitor 122 also serves as slave by a series of number
Data collector 121 is transmitted to according to by RS485 buses.The environmental data of photovoltaic plant is same to the working status for controlling photovoltaic cell
Sample is particularly significant, and environmental parameter is reflected on mobile terminal or computer equipment it may determine that ring arround residing for battery
Border state, for example, battery itself temperature departure predetermined value may not be the exception of battery itself caused by and be probably environment
Drastically caused by high/low temperature changing factor, environmental parameter is to take one of foundation of counter-measure.
Referring to Fig. 1, data collector 121 should at least possess two RS485 Bus Interface Units, and an interface is in data
Used during 121 hosted of collector and at least support tens power electronic equipments, for collecting decoder and environment monitor
With the header box even data of inverter etc..One interface is used when data collector 121 does slave, at this time data collector
The data being collected into are transmitted to communication processor 120 by 121.Slave function has used the field of header box primarily directed to electric system
Close, to have the function that MODBUS is cached, at this time in the case where not changing current plant monitoring room background communication agreement, allow communication
Supervisor 120 smoothly accesses and reads all data, especially header box and environment detector etc. from data collector 121 and sets
The standby data each collected.Data collector 121 connects except RS485 can also configure other various types of existing Fulfilling Industrial Control Bus
Mouthful, such as the distributed photovoltaic system for residents.Data collector 121 should at least possess Ethernet interface, such as to cloud
The gigabit Ethernet of side, to support to pass data to cloud server.Data collector 121 should also at least possess time service mould
Block：Support that wireless or Ethernet time service, data collector 121 should also be to decoder time services, to ensure decoder from solar panel
The most important data and the data of data collector 121 captured are consistent on the timing node of sampling, such as some danger
Even dangerous electric arc of battery overvoltage excess temperature etc. is abnormal necessary directly mobile eventually in mobile phone or PAD etc. in a manner of transient state in the case of urgency
Real-time early warning comes out on end or computer, is arranged with the reply for taking similar cut-out power grid etc for reminding staff as early as possible
Apply, therefore uniformity is extremely important in time for data.Mobile terminal or computer equipment are in the part for monitoring photovoltaic cell
Assigned work parameter above or below setting threshold value when send alarm signal immediately, this alarm signal can be with many bodies
Existing, either the color of some solar panel can also be shown as warning color etc. by sound in APP, or even APP can be with
It is set as that active push message either sends an SMS to the various effective manners such as user.Such as：The real-time temperature of photovoltaic cell
Degree suggests that voltage failure alarm signal for 20 volts more than 40 volts of upper limit threshold or less than lower limit temperature, and the temperature of photovoltaic cell surpasses
Cross 60 degrees Celsius and suggest that temperature fault alarm signal, in addition, mobile terminal or computer equipment are monitoring that data adopt
Some other data of storage 121 above or below setting threshold value when can also send alarm signal, such as second set immediately
The various types of electric currents occurred in parameter and the 3rd set of parameter occur that no current, undercurrent, overcurrent, electric current be low, electric current Gao Douke
To send alarm signal and precondition of alarming can also be separately provided the precondition of alarm, as demonstration but not formed
The example of limitation illustrates the precondition of alarm：When current average be more than setting alarm start threshold value when can just start with
The warning function of upper electric current continuous item, otherwise warning function is directly forced to remove, as to whether alarm needs in addition to meet
Respective alert if.Undercurrent alert if：When electric current is less than alarm threshold value (after current average subtracts first threshold value
As a result), this alarm threshold value can change with the change of current average, and first threshold value this numerical value can be set.Overcurrent
Alert if：When electric current is more than alarm threshold value (current average subtracts result after second threshold value), this alarm threshold value can be with
The change of current average and change, second threshold value this numerical value can be set.The low alert if of electric current：Electric current is less than first
During current value, the first current value can be set.The high alert if of electric current：When electric current is more than the second current value, the second current value can
To set.And no current alert if：When current absolute value is less than three current values, the 3rd current value can be set.Example
Tandem electric current as second set of parameter occurs is applicable in above-mentioned no current or undercurrent, overcurrent, the examination that electric current is low, electric current is high, if electric
The quantity of pond string formation is that the electric current of the string battery string formations of Q and first is ISTR1, second string battery string formation electric current be ISTR2... according to
The secondary electric current for being extrapolated to Q string battery string formations is ISTRQ, Q is natural number here, then the current average finally calculated is equal to the
A string to Q string battery string formation all of which battery string formation electric current be added again divided by battery string formation quantity, use function table
Show namely ISTR1+ISTR2+……ISTRQDivided by Q.With the precision pole of upper type processing data such as tandem electric current or tandem voltage
Height, and the rate of false alarm of the corresponding event of failure of alarm signal accordingly produced is extremely low.In the implementation that early warning is relatively easy to realize
In example, mobile terminal or computer equipment 130 are monitoring the part assigned work parameter of photovoltaic cell 100 above or below setting
Alarm signal is sent during fixed threshold value immediately, such as temperature exceedes high temperature threshold value or less than low temperature threshold alarm, cell voltage
More than HVT high voltage threshold or cell voltage less than the low pressure threshold alarm set.It is but real in more accurate and low rate of false alarm early warning
Apply in example, cell voltage low pressure alarming condition is：Low pressure threshold can set (such as 20 volts), photovoltaic cell that some is specified when reading
Virtual voltage when, front and rear M (such as natural number M for three times) virtual voltage continuously read is below low pressure threshold, and this
There is the electricity of the first ratio (such as 3/4) in that battery string formation where the photovoltaic cell of Shi Zhiding among all photovoltaic cells
The virtual voltage in pond is then alarmed to show the photovoltaic cell specified in a voltage domain of walker (such as 20-40V)
Brownout.And cell voltage alarm for high voltage condition is：HVT high voltage threshold can set (such as 40 volts), photovoltaic that some is specified when reading
During the virtual voltage of battery, the virtual voltage of the front and rear n times (such as natural number N is three times) continuously read is both greater than HVT high voltage threshold,
And have in that battery string formation where the photovoltaic cell specified at this time among all photovoltaic cells the second ratio (such as
3/4) virtual voltage of battery is then alarmed to show the light specified in a voltage domain of walker (such as 20-40V)
Lie prostrate the overtension of battery.Voltage domain of walker is in an alternate embodiment of the invention substantially not less than low pressure threshold and not higher than height
Press threshold value.In addition mobile terminal or computer equipment 130 also need to the number of monitoring data collector 121 in other examples
According to it is middle judge battery string formation whether there occurs arc event data, and judge whether early warning.Usual detection module 112 is either
It is built into the power equipments such as header box or inverter, all fault datas that it can be detected can be exported to data collector
121, for example support the fault alarms such as the overvoltage of battery string formation, under-voltage, overcurrent, undercurrent, out-of-balance current.
Referring to Fig. 1, data collector 121 has as the MODBUS information that host needs to configure：Baud rate, data check side
(common device type is substantially for device type corresponding to the address of slave device that formula, needs access, each slave device address
Should at least show decoder, environment monitor, header box and inverter etc.) etc..Data collector 121 needs to match somebody with somebody as slave
The MODBUS information put has：Baud rate, address, data check mode etc..Additionally should be corresponding to configuration data collector 121
Power station address and power station name, inversion room numbering, inverter numbering etc., and configuration data collector 121 below slave device
Each decoder 111 corresponding to how many battery string formations, the information such as each string formation how many solar panel, for no
String formation and solar panel do not make a decision.Data collector 121 should also be configured with such as USB interface of Type A and IP address or
DHCP information, because when information above is configured in the form of configuration file, configuration file can pass through Ethernet interface
Imported with USB interface to data collector 121.In more preferably scheme, data collector 121 can configure local touch-screen
Any data that it is collected into of display.
Referring to Fig. 1, data collector 121 should carry memory, and data collector 121 is local to be preserved in each data
A data are preserved in cycle (such as one minute), all different types of data such as first to fourth set of parameter in time will
Being consistent property, the error between them are not greater than time fault-tolerant value (such as one minute).Need in data collector 121
Those data of ground storage can have：The environmental data of environment detector 122, every piece of photovoltaic cell 100 assigned work parameter,
The tandem electric current of each photovoltaic string formation, the tandem voltage etc. of each photovoltaic string formation are flowed through, some special storage data are for example
Need to calculate and store each photovoltaic cell 100 in the accumulative generated energy of predetermined amount of time (such as a hour).Data acquisition
Device 121 is also regarded as database in this application, its all data storage will at least ensure more than the several years, in photovoltaic generation
Field generally requires this storage time to reach more than 30 years.Data collector 121 should be to 140 transport part of cloud server
Divided data rather than all data, such as one minute each data update cycle upload a data, wherein data collector
121 data that should be uploaded to cloud server 140 can have：The assigned work such as the voltage of photovoltaic cell 100 and temperature parameter,
The environmental data of environment detector 122, the string formation electric current of each photovoltaic string formation, header box carry out the branch of each battery string formation
Busbar voltage after confluence etc., some special upload data hairs that for example each photovoltaic cell 100 adds up in predetermined amount of time
Electricity can be uploaded using the predetermined amount of time as basic uplink time unit, and the data of cloud server 140 are based on service
The consideration of device cost and data capacity ability relative to data collector 121, can periodically delete, such as one month deletes one
It is secondary, main factor be design one of the initial purpose in high in the clouds be only merely we intend reflect truly from cloud server 140
Real time data historical data for a long time is transferred above high in the clouds without being intended to, the historical data of magnanimity is by data collector
121 undertake preservation.Compatible current all data transfer modes, most common between 121 cloud server 140 of data collector
There is gigabit Ethernet.
Referring to Fig. 1, a part of data are passed to cloud server 140 as light by by the agency of data collector 121 above
Magnitude data and a part of data are stored in locally as persistent data, light weight level data not only data volume it is small and also compared with
It can be deleted in the short time, the data volume of persistent data is huge and the time limit of preservation is more long than light weight level data.Light weight
Level data is more likely to the current working status and parameter of feedback photovoltaic cell and its battery component in time, and persistent data is then
Be more concerned with recording photovoltaic cell and its battery component all data records in history, thus access light weight level data and
Persistent data should establish different communication mechanisms to treat with a certain discrimination.If just think directly read persistent data attempt to come and
When feed back the current working status and parameter of photovoltaic cell and its battery component, it is likely that the situation of generation is：It is although mobile whole
End or computer equipment are accessing data volume persistent data in large scale always, when photovoltaic cell and its battery component occur
During some anomalous events, the data of mobile terminal or computer equipment access may also be not directed to current anomalous event, or
Perhaps in anomalous event there occurs after for a long time, the data parameters corresponding to anomalous event are just supervised by mobile terminal or computer equipment
Measure, in other words, the best opportunity equivalent to processing anomalous event has already passed by, and this hysteresis effect is those skilled in the art
What member can not put up with.Realizing the method for battery parameter monitoring in this application is, is read in mobile terminal or computer equipment light
Under first operating mode of magnitude data or primary sources：Mobile terminal or computer equipment 130 pass through Ethernet or each
The mode of kind wireless communication (such as WIFI etc.) establishes directly access mechanism, mobile terminal or calculating with cloud server 140
The data that machine equipment 130 can store cloud server 140 are read in real time, because the data volume of light weight level data is few,
Be between them it is direct establish communication, there is no any hysteresis effect, be as a result exactly mobile terminal or computer equipment 130 when
Between the current working status of the photovoltaic cell that reflects of upper almost synchronous capture light weight level data and its battery component with
Various data parameters, in this case, the data of mobile terminal or the offer of computer equipment 130 are not only in that real time monitoring,
Us can also be caused in the most suitable various exceptions of opportunity timely processing.
Referring to Fig. 1, persistent data or heavyweight/secondary sources are read in mobile terminal or 130 equipment of computer
The second operating mode under：Mobile terminal or computer equipment 130 first send logging request, high in the clouds clothes to cloud server 140
Business device 140 can verify it, allow mobile terminal or computer equipment 130 and cloud server after verification login is legal
Communication connection is established between 140；The meeting persistent loop of data collector 121 is sent and mobile terminal or meter to cloud server 140
Calculate machine equipment 130 and set up the request of communication, if in mobile terminal or computer equipment 130 with cloud server 140
In the case of being set up communication connection, cloud server 140 then can be by mobile terminal or computer equipment 130 and data at this time
121 respective IP address of collector and corresponding port numbers are sent respectively to other side, namely are adopted data by cloud server 140
The IP address and corresponding port numbers that storage 121 is configured tell mobile terminal or computer equipment 130, by cloud server
140 IP address for being configured mobile terminal or computer equipment 130 and corresponding port numbers tell data collector 121, from
And communication is directly established without cloud server between mobile terminal or computer equipment 130 and data collector 121, move
The huge data that dynamic terminal or computer equipment 130 can store data collector 121 are read out.Because persistent data
Data volume it is huge, be to establish after communication to forward data without cloud server 140 between them, so mobile terminal or meter
Net will not be caused when reading persistent data because of the huge data of continuation requests cloud server 140 by calculating machine equipment 130
Network is crowded, causes meaningless consumption of network resources.Wherein in the second operation mode, 130 He of mobile terminal or computer equipment
Data collector 121 is mutually after the IP address of other side and port is listened to：Mobile terminal or computer equipment 130 are first to data
The home address of collector 121 sends first and shakes hands instruction, data collector 121 generally can multiple round robin first shake hands finger
Order, instruction is shaken hands if the response of data collector 121 first and their both sides begin setting up communication transmission data if shaking hands successfully,
If data collector 121 fail to respond to first shake hands instruction and shake hands unsuccessfully, mobile terminal or computer equipment 130 can ask
Cloud server 140 is asked to notify data collector 121 to send second to mobile terminal or the external address of computer equipment 130 and hold
Finger makes, mobile terminal or computer equipment 130 generally can multiple round robin second shake hands instruction, in mobile terminal or calculating
The response of machine equipment 130 second shakes hands instruction when shaking hands successfully, then their both sides begin setting up communication and the biography of asymmetrical network
Delivery data, if mobile terminal or computer equipment 130 fail to respond to second shake hands instruction and shake hands unsuccessfully, movement can be made
Terminal or computer equipment 130 are switched to the operating mode for reading light weight level data.
Based on explaination basis above, it is necessary to first in the mobile terminal or computer equipment about 130 of mobile phone or PAD etc
The APP application ends of supporting setting are carried, are not limited in any way as example, power station locality can be shown in APP application ends
Time, environmental aspect, can also carry out the display of power curve, support single battery plate, each battery string formation, each header box
Power curve.Power curve supports the interval for example using hour as chronomere to show, can show the whole power on the same day
Change.Can also carry out the display of generated energy, support each solar panel, each battery string formation, each header box generated energy it is aobvious
Show.The data such as generated energy can show that time interval can be the units such as hour, day, Month And Year in a manner of line chart, if
The generated energy of each hour when the same day 24 is small is then shown using hour as interval, the previous moon on the day of being shown using day if interval
Daily generated energy, if the monthly generated energy for showing of that month the previous year if interval using the moon, if shown by interval of year
From the installation time to every annual electricity generating capacity then.The power curve when APP application ends are supported to check solar panel, current voltage, electricity
Stream, temperature can occur together with solar panel current power, will go out when checking string formation power curve beside current power
The voltage and current of existing battery string formation, will occur when checking header box power curve beside current power busbar voltage and
Bus current, supports to show the state of a string of solar panels in APP application ends.But also it can show solar panel in APP application ends
The alarm of the excessively high function of brownout, excessive, temperature, can also additionally set in APP application ends and carry above
Threshold value OR gate threshold values arrived etc..
More than, by explanation and attached drawing, give the exemplary embodiments of the specific structure of embodiment, foregoing invention
Existing preferred embodiment is proposed, but these contents are not intended as limiting to.For a person skilled in the art, in reading
State it is bright after, various changes and modifications undoubtedly will be evident.Therefore, appended claims, which should be regarded as, covers the present invention
True intention and scope whole variations and modifications.In Claims scope any and all scope of equal value with it is interior
Hold, be all considered as still belonging to the intent and scope of the invention.
Claims (12)
1. a kind of photovoltaic cell on-line monitoring and intelligent management system, it is characterised in that including：
The solar panel monitor configured for every piece of photovoltaic cell, for gathering the assigned work parameter of photovoltaic cell；
The decoder for the data that decoding solar panel monitor is sent in a manner of power line carrier, PLC；
At least a part of data are passed to cloud server by the data collector of the data of Rcv decoder transmission, data collector
It is stored in as light weight level data and by a part of data locally as persistent data；
Wherein：
Mobile terminal or computer equipment directly access cloud server when reading light weight level data, so as to promptness capture
The data volume light weight level data smaller than persistent data；And
Mobile terminal or computer equipment access and reading and saving is in the persistent data of data collector local, is taken by high in the clouds
Business device is responsible for establishing the communication between mobile terminal or computer equipment and data collector.
2. photovoltaic cell on-line monitoring according to claim 1 and intelligent management system, it is characterised in that solar panel monitors
Device is transferred to voltage, battery temperature of the first set parameter including at least photovoltaic cell of decoder；
Thereby lightweight, persistent data include at least voltage, the battery temperature of every piece of photovoltaic cell.
3. photovoltaic cell on-line monitoring according to claim 1 and intelligent management system, it is characterised in that each battery pack
String is made of multiple photovoltaic cells being connected in series, and in multiple battery string formations, data acquisition is transferred to by a detection module
Second set of parameter of device includes at least the tandem voltage of each the battery string formation sensed by detection module and flows through each electricity
The tandem electric current of pond string formation；
Thereby the tandem electric current and data collector of lightweight, persistent data including at least each battery string formation calculate
Every piece of solar panel predetermined amount of time generated energy, persistent data also include at least each battery string formation tandem voltage.
4. photovoltaic cell on-line monitoring according to claim 1 and intelligent management system, it is characterised in that photovoltaic combiner box
Also converge to the DC voltage and current of multiple battery string formations, photovoltaic combiner box is transferred to the 3rd set of parameter of data collector
Busbar voltage and bus current after confluence are monitored including at least it；
Thereby light weight level data includes at least the busbar voltage on each bus rod.
5. photovoltaic cell on-line monitoring according to claim 1 and intelligent management system, it is characterised in that environment monitor
Also the environment of the photovoltaic cell present position is monitored, environment monitor is transferred to the 4th set of parameter of data collector extremely
Include the environmental data that environment monitor is monitored less；
Thereby lightweight, persistent data include at least environmental data.
6. photovoltaic cell on-line monitoring according to claim 1 and intelligent management system, it is characterised in that further include one
Relative to communication processor of the data collector as host, as slave, communication processor is used to connect data collector at this time
Receive the data of data collector storage.
7. photovoltaic cell on-line monitoring according to claim 1 and intelligent management system, it is characterised in that data collector
A time service module that time synchronization is realized based on Ethernet is further included, the time service module is also to decoder time service.
8. photovoltaic cell according to claim 1 on-line monitoring and intelligent management system, it is characterised in that mobile terminal or
Computer equipment monitor the part assigned work parameter of photovoltaic cell above or below setting threshold value when send report immediately
Alert signal.
9. photovoltaic cell on-line monitoring according to claim 1 and intelligent management system, it is characterised in that each battery pack
String is made of multiple photovoltaic cells being connected in series, and in multiple battery string formations, data acquisition is transferred to by a detection module
Second set of parameter of device includes at least the arc information of each the battery string formation sensed by detection module；
Thereby lightweight, persistent data include at least the arc information of each battery string formation.
10. photovoltaic cell on-line monitoring according to claim 1 and intelligent management system, it is characterised in that each battery
String formation is made of multiple photovoltaic cells being connected in series, and the direct current of their generations of multiple battery string formations is supplied to inverter to carry out
Inversion grid connection, the 5th set of parameter that inverter is transferred to data collector include at least the output power of inverter, inverter
The often string magnitude of voltage that the accumulative total of generating electricity, the fault alarm information of inverter, inverter internal calculate.
11. a kind of realize that battery parameter monitors in the photovoltaic cell on-line monitoring and intelligent management system described in claim 1
Method, it is characterised in that under the operating mode that mobile terminal or computer equipment read light weight level data：Mobile terminal or
Computer equipment establishes directly access mechanism by way of Ethernet or wireless communication with cloud server；
Read in mobile terminal or computer equipment under the operating mode of persistent data：Mobile terminal or computer equipment are first given
Cloud server sends logging request, and cloud server verification logs in legal rear permission mobile terminal or computer equipment and high in the clouds
Server establishes connection；Data collector is circulated to send to set up with mobile terminal or computer equipment to cloud server and communicated
Request, in the case where mobile terminal or computer equipment are connected with cloud server, cloud server by mobile terminal or
Computer equipment and the respective IP address of data collector and corresponding port numbers are sent respectively to other side, thus mobile terminal or
Communication is directly established between computer equipment and data collector without cloud server.
12. according to the method for claim 11, it is characterised in that mobile terminal or computer equipment and data collector exist
After listening to IP address and the port of other side：Mobile terminal or computer equipment first send the to the home address of data collector
One shakes hands instruction, shakes hands instruction if data collector response first and their both sides begin setting up communication transmission if shaking hands successfully
Data, failing to response first shake hands instruction and shake hands failure then mobile terminal or computer equipment request cloud server lead to
Primary data collector sends second to mobile terminal or the external address of computer equipment and shakes hands instruction；
Shake hands instruction in mobile terminal or computer equipment response second and when shaking hands successfully then their both sides begin setting up it is non-right
Claim network communication simultaneously transmit data, failing to response second shake hands instruction and failure of shaking hands then makes mobile terminal or computer
Equipment is switched to the operating mode for reading light weight level data.
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| CN111722130B (en) * | 2020-06-24 | 2022-08-16 | 京信网络系统股份有限公司 | Backup battery in-place detection method, device, equipment and storage medium |
| CN111722130A (en) * | 2020-06-24 | 2020-09-29 | 京信通信系统（中国）有限公司 | Backup battery in-place detection method, device, equipment and storage medium |
| CN111740698A (en) * | 2020-07-01 | 2020-10-02 | 江苏新塔物联网研究院有限公司 | Photovoltaic module parameter on-line monitoring and fault diagnosis system |
| CN113343322A (en) * | 2021-04-27 | 2021-09-03 | 杨万里 | Financial data storage system based on internet |
| CN113343322B (en) * | 2021-04-27 | 2024-05-10 | 泽鹿视界数字科技(郑州)有限公司 | Financial data storage system based on internet |
| WO2023284290A1 (en) * | 2021-07-12 | 2023-01-19 | 中国华能集团清洁能源技术研究院有限公司 | Multi-dimensional tandem photovoltaic string data acquisition system and method |
| CN114268123A (en) * | 2021-11-16 | 2022-04-01 | 云南电网有限责任公司迪庆供电局 | Carrier communication method for automatically adjusting transmitting power of grid-connected and off-grid switching system |
| CN114268123B (en) * | 2021-11-16 | 2023-08-22 | 云南电网有限责任公司迪庆供电局 | Carrier communication method for automatically adjusting transmitting power of off-grid switching system |
| CN116896164A (en) * | 2023-07-17 | 2023-10-17 | 恩沃新能源科技(上海)有限公司 | Communication system and communication method of micro inverter |
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