CN104113281A - Novel multi-channel solar cell module test system and double intelligent scan method - Google Patents
Novel multi-channel solar cell module test system and double intelligent scan method Download PDFInfo
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- CN104113281A CN104113281A CN201410304734.9A CN201410304734A CN104113281A CN 104113281 A CN104113281 A CN 104113281A CN 201410304734 A CN201410304734 A CN 201410304734A CN 104113281 A CN104113281 A CN 104113281A
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- 238000012360 testing method Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 230000009977 dual effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
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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 relates to a novel multi-channel solar cell module test system and a double intelligent scan method. The test system includes a plurality of solar cell module test units, an alternating current power supply, an industrial control computer and communication lines, wherein the alternating current power supply is connected with the plurality of solar cell module test units and the industrial control computer, and the industrial control computer is connected with the plurality of solar cell module test units through the communication lines. The novel multi-channel solar cell module test system in the invention uses a constant current source electronic load in a solar energy data collector to apply a double intelligent scan method under actual sunlight and atmospheric conditions, so as to realize synchronous and real-time measurement of module parameters of a plurality of solar cell modules, the industrial control computer obtains, processes and stores measured data of the module parameters through the solar cell module test units, outputs an I-V curve, temperature data and a P-T curve of a maximum power point within 24 hours of each solar cell module. The novel multi-channel solar cell module test system in the invention has the advantages of short test time, real test conditions and environment, low cost and the like, and is suitable for large-scale market promotion.
Description
Technical field
The invention belongs to solar energy power generating field, be specifically related to a kind of novel multi-channel solar module test macro and dual intelligent scanning method.
Background technology
The application of solar photovoltaic technology is very wide, from military, space industry, entered the departments such as industry, business, agricultural, communication, household electrical appliances and public utility, especially in border district, high mountain, desert, island and the rural area etc. that disperse, be used widely.
Continuous growth along with solar energy power generating industry, engineers and technicians are also more and more higher to the requirement of solar module test and measurement solution, particularly, in photovoltaic system application study and field tests, there is no at present maturation and meet the integrated testability system that user requires.In addition, the generating efficiency analysis of photovoltaic plant at present depends on the environmental data of environment detector record, and amount of radiation register instrument in conventional environment measuring is the radiometer that adopts thermocouple type, the Radiance data of this instrument record and solar cell spectral region are inconsistent, and in situations such as setting angle, temperature characterisitic and superficial dusts, all there is certain discrepancy with the operating solar module of photovoltaic plant, cause the generating efficiency analysis of photovoltaic plant to have certain error.
Summary of the invention
For meeting the needs of efficiency analysis, the test of optimum tilt angle and the research of the solar photovoltaic generation system of different regions in all parts of the country, the object of this invention is to provide a kind of novel multi-channel solar module test macro and dual intelligent scanning method, the characteristic parameter of a plurality of solar modules of installing with different angle of energy synchronism detection, as maximum generating watt, open circuit voltage, short circuit current, maximum power point voltage and electric current and assembly operating temperature.
Novel multi-channel solar module test macro, comprise several solar module test cells, 1 AC power, 1 industrial control computer and connection, it is characterized in that: described AC power is connected with solar module test cell described in several and described industrial control computer respectively, described industrial control computer is connected with solar module test cell described in several respectively by described connection, obtain, the measurement data of processing and memory module parameter, and export I-V curve, temperature data and the maximum power point P-T curve in 24 hours.
Described AC power is 220V ac uninterrupted power supply, can in round-the-clock test, keep the supply of electric power to test macro.
Described connection is RS485 bus or RS232 bus.
Described component parameter comprises open circuit voltage, short circuit current, maximum power point voltage and electric current and assembly operating temperature.
Described solar module test cell is comprised of solar module, assembly support, Solar Data collector, temperature sensor, photovoltaic cable, described solar module is arranged on described assembly support, described Solar Data collector is connected with described solar module by described photovoltaic cable, and described temperature sensor is connected with described Solar Data collector; Described Solar Data collector is connected with described AC power, described industrial control computer respectively.
Described solar module is monocrystalline silicon battery assembly or polycrystal silicon cell assembly, so the present invention can enter test to dissimilar battery component.
The material of described assembly support is aluminium alloy or zinc-plated carbon steel.
Described Solar Data collector is comprised of electronic load, testing circuit, accessory power supply, control circuit, single-chip microcomputer and telecommunication circuit, wherein said electronic load is constant-current source electronic load, the current margin of described electronic load is 0-10A, and voltage range is 0-45V
dC; Described testing circuit and described temperature sensor join, described accessory power supply and described AC power are joined, described telecommunication circuit is joined by described connection and described industrial control computer, and described electronic load is connected with output, testing circuit, the control circuit of described solar module respectively; Described single-chip microcomputer is connected with described control circuit, described testing circuit respectively.When the resistance of described electronic load changes to infinity from zero, the voltage and current in this period of system continuous sampling can obtain the I-V characteristic curve of described solar module under current environment condition.
Described temperature sensor is Pt1000 type temperature sensor, and described temperature sensor is the real time temperature in test process for detection of solar module.
Described photovoltaic cable model is PV1-F1 * 4.0mm
2, length is 20m.
17 solar modules in described 17 solar module test cells are arranged respectively in the following manner, wherein 11 described solar modules according to due south towards, vertically angle of inclination is 0 °～50 °, 5 ° of every block gaps are arranged on each self-corresponding described assembly support, wherein 4 described solar modules according to due south towards, vertically angle of inclination is 60 °～90 °, 10 ° of every block gaps are arranged on each self-corresponding described assembly support, wherein 1 described solar module according to due east towards, vertically 90 °, inclination angle is arranged on corresponding described assembly support, wherein 1 described solar module according to positive west towards, vertically 90 °, inclination angle is arranged on the assembly support of described correspondence.Wherein, described solar module in due south towards, vertically to arrange be in order to increase test density near optimum tilt angle as far as possible, to improve the test accuracy to described component parameter to the interval according to every 5 °, 5 °～50 °, angle of inclination.
The present invention utilizes the dual intelligent scanning method of described novel multi-channel solar module test macro, it is characterized in that carrying out according to the following steps:
(1) detect the open circuit voltage data of solar module described in several.
(2) in the current range of 0.5A-5.5A or 0.5A-9.0A, some groups of voltages, current data that the 0.5A of take is solar module described in interval measurement, and in some groups of voltages, current data, find out maximum power point P1;
(3) maximum power point P1 ± 0.5A within the scope of, take 0.05A as interval further measure maximum power point P1 ± several within the scope of 0.5A described in voltage, the current data of solar module, and find out the maximum power point P2 in this current range;
(4) detect short circuit current and the real time temperature data of solar module described in several.
The present invention utilizes electronic load described in described Solar Data collector with dual intelligent scanning method, to realize the synchronous real-time measurement to some solar module electric parameters under actual sunshine and atmospheric condition.
The present invention has the following advantages:
(1) the data sampling cycle short, scan required All Time≤20 second of some block assemblies;
(2) can use identical solar cell material with the solar module in tested photovoltaic plant, and test under identical service conditions, the energy output of photovoltaic plant can be directly and the energy output of this test macro contrast, the error of having avoided above-mentioned inconsistent situation to cause, the photovoltaic power station system efficiency analyzing is more accurate, and the operation management that can be photovoltaic plant provides more reliably and ensures;
(3) cost of this test macro is lower, has higher market popularization value.
Accompanying drawing explanation
Fig. 1 is test system structure schematic diagram of the present invention.
Fig. 2 is solar module test cell structure principle chart of the present invention.
Fig. 3 is Solar Data collector structure principle chart of the present invention.
Fig. 4 a, Fig. 4 b, Fig. 4 c are respectively solar module orientation angles of the present invention and arrange schematic diagram.
Wherein, 1: AC power, 2: solar module test cell, 3: connection, 4: industrial control computer, 5: solar module, 6: temperature sensor, 7: Solar Data collector, 8: photovoltaic cable, 9: assembly support, 10: electronic load, 11: testing circuit, 12: accessory power supply, 13: control circuit, 14: single-chip microcomputer, 15: telecommunication circuit.
Embodiment
For further helping those skilled in the art to understand better summary of the invention, below in conjunction with accompanying drawing, with concrete execution mode, the content of invention is set forth.
Fig. 1 is test system structure schematic diagram of the present invention, a kind of novel multi-channel solar module test macro comprises 1 AC power 1 as shown in Figure 1, 17 solar module test cells 2, connection 3 and 1 industrial control computer 4, test macro connection is achieved in that described AC power 1 is connected with 17 described solar module test cells 2 and described industrial control computer 4 respectively, described industrial control computer 4 is connected with 17 described solar module test cells 2 respectively by described connection 3, and acquisition gathers the data of measurement, the measurement data of 4 pairs of component parameters of described industrial control computer is processed, storage, and export the I-V curve of described solar module 5, temperature data and the maximum power point P-T curve in 24 hours.Described AC power is 220V ac uninterrupted power supply.Described connection 3 is RS485 bus, can also use RS232 bus.
Described component parameter comprises open circuit voltage, short circuit current, maximum power point voltage and electric current and assembly operating temperature.
Fig. 2 is solar module test cell structure principle chart of the present invention, described solar components battery testing unit 2 comprises solar module 5, temperature sensor 6, Solar Data collector 7, photovoltaic cable 8, assembly support 9, described solar module 5 is arranged on described assembly support 9, described Solar Data collector 7 is connected with described solar module 5 by described photovoltaic cable 8, the described Solar Data collector 7 of described temperature sensor 6 access, described AC power 1 realizes and being connected of described solar module test cell 2 by the described Solar Data collector 7 of access, described industrial control computer 4 is realized and being connected of described solar module test cell 2 by the described Solar Data collector 7 of described connection 3 access.Described solar module 5 is monocrystalline silicon battery assembly, also can select polycrystal silicon cell assembly.
The material of described assembly support 9 is aluminium alloy, also can select zinc-plated carbon steel.
Described temperature sensor 6 is Pt1000 type temperature sensor.
Described photovoltaic cable 8 models are PV1-F1 * 4.0mm
2, length is 20m.
Fig. 3 is Solar Data collector structure principle chart of the present invention, as shown in Figure 3, described Solar Data collector 7 is comprised of electronic load 10, testing circuit 11, accessory power supply 12, control circuit 13, single-chip microcomputer 14 and telecommunication circuit 15, wherein said electronic load 10 is constant-current source electronic load, the current margin of described electronic load 10 is 0-10A, and voltage range is 0-45V
dC; Described testing circuit 11 joins with described temperature sensor 6, described accessory power supply 12 joins with described AC power 1, described telecommunication circuit 15 is joined with described industrial control computer 4 by described connection 3, and described electronic load 10 is connected with output, testing circuit 11, the control circuit 13 of described solar module 5 respectively; Described single-chip microcomputer 14 is connected with described control circuit 13, described testing circuit 11 respectively.Described testing circuit 11, accessory power supply 12, control circuit 13, telecommunication circuit 15 are equal available circuit.When the resistance of described electronic load 10 changes to infinity from zero, the voltage and current in this period of system continuous sampling can obtain the I-V characteristic curve of described solar module 5 under current environment condition.
Fig. 4 a, Fig. 4 b, Fig. 4 c is respectively solar module orientation angles of the present invention and arranges schematic diagram, 17 described solar modules 5 are arranged in the following manner as shown in Figure 3: wherein 11 described solar modules 5 according to due south towards, vertically 5 ° of every block gaps, 0 °～50 °, angle of inclination are arranged on each self-corresponding described assembly support 9, wherein 4 described solar modules 5 according to due south towards, vertically 10 ° of every block gaps, 60 °～90 °, angle of inclination are arranged on each self-corresponding described assembly support 9, wherein 1 described solar module 5 according to due east towards, vertically 90 °, inclination angle is arranged on corresponding described assembly support 9, wherein 1 described solar module 5 according to positive west towards, vertically 90 °, inclination angle is arranged on corresponding described assembly support 9.
The present invention utilizes the dual intelligent scanning method of described novel multi-channel solar module test macro, its spy
Levy and be to carry out according to the following steps:
(1) detect the open circuit voltage data of solar module described in several.
(2) when described solar module is selected monocrystalline silicon 125 * 125 or polysilicon 125 * 125 cell piece, in the current range of 0.5A-5.5A, some groups of voltages, current data that the 0.5A of take is solar module described in interval measurement, and in some groups of voltages, current data, find out maximum power point P1; When described solar module is selected monocrystalline silicon 156 * 156 or polysilicon 156 * 156 cell piece, in the current range of 0.5A-9.0A, some groups of voltages, current data that the 0.5A of take is solar module described in interval measurement, and in some groups of voltages, current data, find out maximum power point P1;
(3) maximum power point P1 ± 0.5A within the scope of, take 0.05A as interval further measure maximum power point P1 ± several within the scope of 0.5A described in voltage, the current data of solar module, and find out the maximum power point P2 in this current range;
(4) detect short circuit current and the real time temperature data of solar module described in several.
A kind of novel multi-channel solar module test macro of the present invention carries out the real-time testing of component parameter with dual intelligent scanning method under actual sunshine and atmospheric condition simultaneously to some described solar modules 5.
The present invention has the following advantages:
(1) the data sampling cycle short, scan required All Time≤20 second of some block assemblies;
(2) can use identical solar cell material with the solar module in tested photovoltaic plant, and test under identical service conditions, the energy output of photovoltaic plant can be directly and the energy output of this test macro contrast, the error of having avoided above-mentioned inconsistent situation to cause, the photovoltaic power station system efficiency analyzing is more accurate, and the operation management that can be photovoltaic plant provides more reliably and ensures;
(3) cost of this test macro is lower, has higher market popularization value.
Above-mentioned embodiment combines accompanying drawing principle of the present invention and content is set forth; but it is to be noted; content of the present invention comprises and is not limited only to the case in above-mentioned embodiment; all principles of take in the present invention are basic modification or improvement, within all should including the protection range of the claims in the present invention in.
Claims (12)
1. novel multi-channel solar module test macro, comprise several solar module test cells, 1 AC power, 1 industrial control computer and connection, it is characterized in that: described AC power is connected with solar module test cell described in several and described industrial control computer respectively, described industrial control computer is connected with solar module test cell described in several respectively by described connection, obtain, the measurement data of processing and memory module parameter, and export I-V curve, temperature data and the maximum power point P-T curve in 24 hours.
2. novel multi-channel solar module test macro as claimed in claim 1, it is characterized in that: described solar module test cell is comprised of solar module, assembly support, Solar Data collector, temperature sensor, photovoltaic cable, described solar module is arranged on described assembly support, described Solar Data collector is connected with described solar module by described photovoltaic cable, and described temperature sensor is connected with described Solar Data collector; Described Solar Data collector is connected with described AC power, described industrial control computer respectively.
3. novel multi-channel solar module test macro as claimed in claim 2, it is characterized in that: described Solar Data collector is comprised of electronic load, testing circuit, accessory power supply, control circuit, single-chip microcomputer and telecommunication circuit, wherein said electronic load is constant-current source electronic load, the current margin of described electronic load is 0-10A, and voltage range is 0-45V
dC; Described testing circuit and described temperature sensor join, described accessory power supply and described AC power are joined, described telecommunication circuit is joined by described connection and described industrial control computer, and described electronic load is connected with output, testing circuit, the control circuit of described solar module respectively; Described single-chip microcomputer is connected with described control circuit, described testing circuit respectively.
4. novel multi-channel solar module test macro as claimed in claim 2, it is characterized in that: 17 solar modules in described 17 solar module test cells are arranged respectively in the following manner, wherein 11 described solar modules according to due south towards, vertically angle of inclination is 0 °～50 °, 5 ° of every block gaps are arranged on each self-corresponding described assembly support, wherein 4 described solar modules according to due south towards, vertically angle of inclination is 60 °～90 °, 10 ° of every block gaps are arranged on each self-corresponding described assembly support, wherein 1 described solar module according to due east towards, vertically 90 °, inclination angle is arranged on corresponding described assembly support, wherein 1 described solar module according to positive west towards, vertically 90 °, inclination angle is arranged on the assembly support of described correspondence.
5. novel multi-channel solar module test macro as claimed in claim 1, is characterized in that: described AC power is 220V ac uninterrupted power supply.
6. novel multi-channel solar module test macro as claimed in claim 1, is characterized in that: described temperature sensor is Pt1000 type temperature sensor.
7. novel multi-channel solar module test macro as claimed in claim 2, is characterized in that: the material of described assembly support is aluminium alloy or zinc-plated carbon steel.
8. novel multi-channel solar module test macro as claimed in claim 1, is characterized in that: described connection is RS485 bus or RS232 bus.
9. novel multi-channel solar module test macro as claimed in claim 2, is characterized in that: described photovoltaic cable model is PV1-F1 * 4.0mm
2, length is 20m.
10. a kind of novel multi-channel solar module test macro as claimed in claim 2, is characterized in that: described solar module is monocrystalline silicon battery assembly or polycrystal silicon cell assembly.
11. novel multi-channel solar module test macros as claimed in claim 1, is characterized in that: described component parameter comprises open circuit voltage, short circuit current, maximum power point voltage and electric current and assembly operating temperature.
12. utilize the dual intelligent scanning method of the described novel multi-channel solar module test macro of one of claim 1-11, it is characterized in that carrying out according to the following steps:
(1) detect the open circuit voltage data of solar module described in several.
(2) in the current range of 0.5A-5.5A or 0.5A-9.0A, some groups of voltages, current data that the 0.5A of take is solar module described in interval measurement, and in some groups of voltages, current data, find out maximum power point P1;
(3) maximum power point P1 ± 0.5A within the scope of, take 0.05A as interval further measure maximum power point P1 ± several within the scope of 0.5A described in voltage, the current data of solar module, and find out the maximum power point P2 in this current range;
(4) detect short circuit current and the real time temperature data of solar module described in several.
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| CN104467668A (en) * | 2014-12-25 | 2015-03-25 | 中国电子科技集团公司第四十一研究所 | Multi-channel photovoltaic module generating capacity test data collection system |
| CN104617876A (en) * | 2015-02-02 | 2015-05-13 | 河海大学常州校区 | Outdoor test platform of solar photovoltaic modules and electricity generation performance online analysis method thereof |
| CN106788250A (en) * | 2016-12-19 | 2017-05-31 | 武汉大学 | A kind of spherical irradiation of multi-angle solar energy observation device and method |
| CN107800384A (en) * | 2017-10-19 | 2018-03-13 | 中国电子科技集团公司第四十研究所 | A kind of concurrency control method for the test of photovoltaic module IV Character Comparisons |
| CN109000737A (en) * | 2018-09-21 | 2018-12-14 | 国网辽宁省电力有限公司电力科学研究院 | A kind of transmission line of electricity monitoring sensor solar energy-battery group test method |
| CN111817665A (en) * | 2020-06-10 | 2020-10-23 | 武汉理工大学 | A solar panel detection device and method |
| CN112731975A (en) * | 2019-10-28 | 2021-04-30 | 苏州阿特斯阳光电力科技有限公司 | Method for adjusting inclination angle of tracking support of photovoltaic module |
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