CN104467668A - Multi-channel photovoltaic module generating capacity test data collection system - Google Patents
Multi-channel photovoltaic module generating capacity test data collection system Download PDFInfo
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- CN104467668A CN104467668A CN201410828443.XA CN201410828443A CN104467668A CN 104467668 A CN104467668 A CN 104467668A CN 201410828443 A CN201410828443 A CN 201410828443A CN 104467668 A CN104467668 A CN 104467668A
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- 238000012360 testing method Methods 0.000 title claims abstract description 71
- 238000013480 data collection Methods 0.000 title claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 5
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention provides a multi-channel photovoltaic module generating capacity test data collection system which comprises test modules, a data acquisition module, an operation module and a display module. The test modules are used for testing the generating capacity test data of photovoltaic modules. The data acquisition module is used for transmitting the test results of multiple sets of test modules to the operation module through a USB communication protocol. The operation module is used for controlling working of the test modules and processing the test result data obtained by the test modules. The display module is used for displaying the real-time test data and device parameters of the multiple sets of test modules, wherein the data and the parameters are processed by the operation module. The data acquisition module at least comprises a USB HUB and a plurality of data acquisition channels. According to the multi-channel photovoltaic module generating capacity test data collection system, the data acquisition module supports multi-path acquisition and expansion of the channels and tests the maximum power of the photovoltaic modules, the operation module conducts multi-channel control over the data acquisition module in a virtual multi-serial port mode, display is achieved on the display module, and by means of the system, the test of multiple photovoltaic modules through multiple expandable channels can be achieved, and outdoor generating capacity comparison of the photovoltaic modules of different performance can be achieved.
Description
Technical field
The present invention relates to a kind of multichannel light photovoltaic assembly energy output test data collection system.
Background technology
In existing photovoltaic plant, the general inverter of energy output test carries out statistical metering, but the measuring accuracy of inverter and control algolithm differ greatly, be very easy to the larger change causing energy output, accurate analysis that cannot be quantitative in assembly property comparison, lacks the evaluation system of reasonable science; An assembly cannot be differentiated whether help the lifting of energy output after process change, for the outdoor generating quantity research risen at present, lack necessary detection means reliably.
Some are also had to possess the energy output tester of single channel, multi input interface handoff functionality in addition, certain poll effect can only be played, due to the change of measuring condition, cannot the real energy output characteristic of the multiple photovoltaic module of comparison, certain function for monitoring can only be played.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of multichannel light photovoltaic assembly energy output test data collection system, and this system can the multiple photovoltaic module energy output of person easy to use comparison intuitively.
For solving the problems of the technologies described above, the invention provides a kind of multichannel light photovoltaic assembly energy output test data collection system, comprising:
Test module, for the energy output test data of test light photovoltaic assembly;
Data acquisition module, for will organize test module more test result data by usb communication protocol transmission to computing module;
Computing module, for controlling the work of test module, and processes the test result data that test module obtains;
Display module, for showing the test real time data of the many groups test module after computing module process and device parameter;
Wherein, data acquisition module at least comprises USB HUB and some data acquisition channels, each data acquisition channel is connected by serial line interface with corresponding test module, and some data acquisition channels turn serial port circuit access USB HUB respectively by USB, and USB HUB is connected with computing module.
As preferred version of the present invention, data acquisition module also comprises encoder, and encoder carries out encoding setting to described test module physical location, guarantees that serial interface devices number carries out one_to_one corresponding with the numbering of data acquisition channel.
Technology contents for a more clear understanding of the present invention, below by this multichannel light photovoltaic assembly energy output test data collection system referred to as native system.
Native system can obtain the energy output characteristic of multiple photovoltaic module simultaneously, wherein the power test of each photovoltaic module adopts IV curve method of testing test light photovoltaic assembly maximum power, guarantee the repeatability of test result, and to carry out the energy output comparison in difference between different assembly with base reference for the moment, preserve the test record of original I V curve.
In order to synchronous multiple channel test result, the data acquisition module of native system utilizes the attributes of network of usb bus to support multi pass acquisition and extended channel, and realize IV curve method of testing test light photovoltaic assembly maximum power, computing module carries out multi-way contral by Virtual Multi-Serial mode to data acquisition module, base during unified test, and in the enterprising row operation display of display module, support the 6 above test channel in road, on computing module, design software realizes energy output benchmark comparing function.
The invention has the beneficial effects as follows, native system can be utilized to realize the photovoltaic module test of multiple easily extensible passage, and the outdoor generating amount comparison of different performance photovoltaic module can be realized.
Encoder is added in data acquisition module, realize the hardware encoding to test module, and make hardware encoding to be read in internal storage preservation in initialization with embedded software, by virtual serial port to data acquisition channel query facility coding, realize the one-to-one relationship of the hardware encoding of virtual serial port and test module.
Accompanying drawing explanation
Fig. 1 is electrical design schematic diagram of the present invention.
Fig. 2 is the software interface schematic diagram of the embodiment of the present invention.
Embodiment
As shown in Figure 1
Native system comprises test module, data acquisition module, computing module, display module.
Test module (Tester) is independently solar cell IV curve tester.
Data acquisition module (Calculate Module) comprises USB HUB, some data acquisition channels, encoder, each data acquisition channel is connected by serial line interface with corresponding test module, some data acquisition channels turn serial port circuit access USB HUB respectively by USB (USB), and USB HUB (USB (universal serial bus) hub) is connected with computing module; Encoder carries out encoding setting to test module physical location;
In data acquisition module, data acquisition channel (channels) adopts 51 single-chip microcomputer designs, serial line interface is externally provided to export for sampled data, the corresponding serial ports of each like this data acquisition channel, in data acquisition module, rs 232 serial interface signal turns in serial port circuit access USB HUB through specially designed USB, according to usb communication agreement, 127 tunnel USB interface expansions can be supported at most, just mean that this can expand at most 127 tunnel test channel.
Computing module (Calculate Module) adopts x86 hardware platform, run windows xp or windows 7 system, USB HUB is accessed computing module, the driver that USB turns serial port circuit is installed in computing module, virtual serial port can be seen in windows system, be associated with the serial ports of the channel acquisition module in data acquisition module, so just possesses multichannel communication controlling functions, device number due to virtual serial port has certain randomness, can not mate with the channel number of physical channel, encoder is devised at data acquisition channel, encoding setting can be carried out when mounted according to hardware actual installation position, and read in internal storage when initialization by data acquisition channel plug-in and preserve, inquire about to data acquisition channel when computing module performs initialization command, the numbering of virtual serial port device number and data acquisition channel is carried out one_to_one corresponding.
In computing module, devise command response mechanism, utilize the multi-thread mechanism of windows platform, the multichannel serial simultaneously to slave computer sends test command, being interrupted by serial ports in data acquisition channel can response test order in time, has so just ensured the synchronous initiation tested.
The real-time maximum power of IV curve method of testing test light photovoltaic assembly is adopted in native system, wait tests into whole channel data and returns, and after calculating this passage photovoltaic module actual power, just can circulate and perform next test period, ensure that multichannel real-time and consistency, multichannel testing time benchmark be carried out synchronous, on this basis, realize the curve display over time of generating value, finally, show at display module (Display Terminal).
The display that display module can select PC to hold.
In addition, in computing module, design is as Fig. 2 application software, support that every channel components energy output is monitored continuously, and can using the energy output of one of them passage as test benchmark, show the ratio of other several passages relative to reference channel energy output, the ratio variation tendency of energy output between each passage of reflection directly perceived.
Solar cell IV curve tester is commercially available matured product.
Above-described is only one embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, can also make some modification and improvement, and these also should be considered as belonging to protection scope of the present invention.
Claims (2)
1. a multichannel light photovoltaic assembly energy output test data collection system, its feature comprises:
Test module, for the energy output test data of test light photovoltaic assembly;
Data acquisition module, for will organize test module more test result data by usb communication protocol transmission to computing module;
Computing module, for controlling the work of test module, and processes the test result data that test module obtains;
Display module, for showing the test real time data of the many groups test module after computing module process and device parameter;
Wherein, data acquisition module at least comprises USB HUB and some data acquisition channels, each data acquisition channel is connected by serial line interface with corresponding test module, and some data acquisition channels turn serial port circuit access USB HUB respectively by USB, and USB HUB is connected with computing module.
2. multichannel light photovoltaic assembly energy output test data collection system according to claim 1, is characterized in that:
Described data acquisition module also comprises encoder, and encoder carries out encoding setting to described test module physical location, guarantees that serial interface devices number carries out one_to_one corresponding with the numbering of data acquisition channel.
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| CN201410828443.XA CN104467668A (en) | 2014-12-25 | 2014-12-25 | Multi-channel photovoltaic module generating capacity test data collection system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109918306A (en) * | 2019-03-08 | 2019-06-21 | 深圳市腾讯网络信息技术有限公司 | Audio processing equipment, system, method, apparatus and storage medium |
| CN110596567A (en) * | 2018-06-12 | 2019-12-20 | 三星电子株式会社 | Test interface board, test system and method for operating test interface board |
| CN112165363A (en) * | 2020-09-21 | 2021-01-01 | 杭州涂鸦信息技术有限公司 | WIFI module production test system |
| CN115083035A (en) * | 2021-03-15 | 2022-09-20 | 北汽福田汽车股份有限公司 | Data acquisition method and device, medium, equipment and vehicle |
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