CN106291401B - A kind of sun square formation simulator C-V characteristic test method and test macro - Google Patents
A kind of sun square formation simulator C-V characteristic test method and test macro Download PDFInfo
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- CN106291401B CN106291401B CN201610898845.6A CN201610898845A CN106291401B CN 106291401 B CN106291401 B CN 106291401B CN 201610898845 A CN201610898845 A CN 201610898845A CN 106291401 B CN106291401 B CN 106291401B
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- 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
- G01R31/40—Testing power supplies
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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
Abstract
A kind of sun square formation simulator C-V characteristic test method and test macro, during the test, when power work is in constant current area, use level pressure hydrometry, when power work is in areas of permanent pressure, using constant current manometric method, a VA characteristic curve completely all in constant pressure, constant current area with equidistant data point is obtained by once testing, overcoming simple constant-pressure test method and constant current method of testing causes test fluctuation larger, further increases the efficiency of C-V characteristic test verifying.
Description
Technical field
The present invention relates to sun square formation simulator fields, and in particular to a kind of sun square formation simulator C-V characteristic test side
Method and system.
Background technique
C-V characteristic is sun square formation simulator difference with the most important characteristic of other power supplys, and the test to its performance is also
The emphasis of sun square formation simulator, the test of C-V characteristic are tested, essence is exactly to verify sun square formation simulator power supply to embed
The engineering correctness of mathematical model equation and its performance characteristics reflected on hardware capability.
Be broadly divided into two kinds now for sun square formation simulator C-V characteristic test method: level pressure hydrometry and constant current are surveyed
Platen press.Specific method is continuously to change load condition after one VA characteristic curve of power settings, adjusts current supply circuit
In electric current (or the voltage at electronic load both ends), while by measurement obtain one group of power supply output voltage (or electric current), and
Compared with the theoretical value being calculated by model equation, to obtain the C-V characteristic accuracy index of tested power supply.But
It is, from Fig. 1 typical case's sun square formation simulator VA characteristic curve figure as can be seen that when sun square formation simulator power work exists
Under current state when (i.e. region of the voltage close to zero in Fig. 1), the minor alteration of electric current will cause the significantly jump of voltage
Become；Similarly, when high-voltage state (i.e. region of the electric current close to zero in Fig. 1), the minor alteration of voltage can also cause the big of electric current
Amplitude jump；
Therefore, in the prior art, voltage or current can all be encountered using level pressure hydrometry and constant current manometric method merely
It slightly fluctuates, will lead to the situation of measured value fluctuation, so that accurate VA characteristic curve test value can not be obtained, more
Accurate validation can not be carried out to C-V characteristic.
Summary of the invention
The object of the present invention is to provide a kind of sun square formation simulator C-V characteristic test methods, when power work exists
It,, in this way can be by primary using constant current manometric method when power work is in areas of permanent pressure using level pressure hydrometry when constant current area
Test obtains a VA characteristic curve completely all in constant pressure, constant current area with equidistant data point, improves C-V characteristic
The efficiency of test.
A kind of sun square formation simulator C-V characteristic test method, the steps include:
(1) when power work is at constant current region, from voltage steps starting point to VmpThis segment limit, with the setting of stepped voltage value
Electronic load, one voltage steps value of voltage increase, each voltage steps read electricity later each time since Initial Voltage Value
Sub- load current measurement Ii, wherein i=1,2,3 ... n, n=Vmp/ stepped voltage, wherein VmpThe voltage of maximum power point；
(2) every voltage increased after a voltage steps value theoretical current value I corresponding in C-V characteristic is calculatedi'；
(3) calculating current measured value IiWith theoretical current value Ii' difference DELTA Ii:
ΔIi=Ii-Ii' (i=1,2,3...n)
Wherein Δ IiFor current measurement value IiWith electric current theoretical value Ii' error, it should meet:
|ΔIiIn maximum value |≤| Ilm|
Wherein: IlmFor the defined measurement allowable error limit；
(4) VA characteristic curve in constant current region is drawn；
(5) it calculates and voltage VmpCorresponding current value Imp, wherein ImpFor the electric current of maximum power point, when power work exists
When constant voltage region, from ImpTo this segment limit of stair step current value, electronic load is arranged with stair step current value, reads electronic load voltage
Measured value Ui, wherein i=1,2,3 ... n, n=(ImpStair step current value)/stair step current；
(6) every electric current reduced after a current marching technique value theoretical voltage value corresponding in C-V characteristic is calculated
U′i；
(7) voltage measuring value U is calculatediWith theoretical voltage value Ui' difference DELTA Ui,
ΔUi=Ui-Ui' (i=1,2,3...n)
Wherein: Δ UiFor voltage measuring value UiWith voltage theoretical value Ui' error, and should meet
|ΔUiIn maximum value |≤| Ulm|
Wherein: UlmFor the defined measurement allowable error limit；
(10) VA characteristic curve of constant voltage region is drawn；
(11) statistical data and verifying conclusion is made；
Especially, Initial Voltage Value 0；
A kind of sun square formation simulator C-V characteristic test macro, sun square formation simulator and electronic load connect in the system
It connects, computer is connected to sun square formation simulator and electronic load and the data collector for acquiring data, wherein electronics
The voltage or current of load being capable of self-setting.
Especially, the data collector includes digital multimeter and digital voltmeter；
Especially, digital multimeter reads the voltage at electronic load both ends, and digital voltmeter and measuring resistance be used to survey
Measure the electric current in circuit；
Especially, the voltage and current of electronic load can be arranged according to stepping-in amount；
Especially, the stepping-in amount is determined according to the limits of error of electronic load voltage, current setting value, the sun
The sampling terminal of square matrix simulator connects the positive and negative end in electronic load.
A kind of sun square formation simulator C-V characteristic test method and system provided by the invention, are obtained by once testing
One completely all has the VA characteristic curve of equidistant data point in constant pressure, constant current area, overcomes simple constant-pressure test
Method and constant current method of testing cause test fluctuation larger, further increase the efficiency of C-V characteristic test verifying.
Detailed description of the invention
Fig. 1 typical sun square formation simulator VA characteristic curve figure in the prior art
C-V characteristic test macro Fig. 2 of the invention builds figure
Sun square formation simulator C-V characteristic test flow chart Fig. 3 of the invention
Specific embodiment
The content of present invention is specifically described in conjunction with specific embodiments as follows:
For sun square formation simulator power supply, major function is simulated solar battery output characteristics, includes
The complete solar cell equivalent-circuit model formula of the factors such as light intensity, temperature are as follows:
Wherein: IPhFor photogenerated current；
T is solar cell virtual junction temperature；
Tr is that solar cell measures reference temperature；
Q is electron charge；
Eg is semiconductor material taut band width (eV)；
B is the ideal diode factor；
K is Boltzmann constant；
Rs is solar cell series connection resistance；
Rp is solar cell parallel resistance；
But since formula 1 is transcendental equation, practical application can not be obtained in engineering, therefore equivalent letter has been carried out to it
Change:
Wherein: VocFor the open-circuit voltage of cell array；
IscFor the short circuit current of cell array；
RsFor the series resistance of cell array；
N is an exponential type curve parameter of curve；
VmpFor the voltage of maximum power point；
ImpFor the electric current of maximum power point.
And there is following relational expression:
Pass through V it can be seen from above-mentioned formulaoc、Isc、Vmp、ImpThis four adjustable parameters can determine a C-V characteristic song
Line, this group of formula are embedded among simulator power supply firmware, and the inherent characteristic as sun square formation simulator power supply exists.
Therefore, the present invention sets different test modes according to different regions, when power work is in constant current area, makes
It, in this way can be by once testing to obtain one using constant current manometric method when power work is in areas of permanent pressure with level pressure hydrometry
Completely all there is the VA characteristic curve of equidistant data point in constant pressure, constant current area, test method is as shown in figure 3, specific step
Suddenly are as follows:
(1) basic parameter of sun square formation simulator power supply is set；
(2) Initial Voltage Value and stair step current value, Initial Voltage Value 0 are set；
(3) when power work is at constant current region, from voltage steps starting point to VmpThis segment limit, with the setting of stepped voltage value
Electronic load, one voltage steps value of voltage increase, each voltage steps read electricity later each time since Initial Voltage Value
Sub- load current measurement Ii, wherein i=1,2,3 ... n, n=Vmp/ stepped voltage；
(4) by formula 2 to formula 5, it is right to calculate the every voltage increased after a voltage steps value institute in C-V characteristic
The theoretical current value I answeredi'；
(5) calculating current measured value IiWith theoretical current value Ii' difference DELTA Ii:
ΔIi=Ii-Ii' (i=1,2,3...n) formula 6
Wherein Δ IiFor the error of current measurement value and electric current theoretical value, it should meet:
|ΔIiIn maximum value |≤| Ilm| formula 7
Wherein: IlmTo measure the allowable error limit specified in specification；
(6) VA characteristic curve in constant current region is drawn；
(7) it calculates and voltage VmpCorresponding current value Imp, when power work is at constant voltage region, from ImpTo stair step current
It is worth this segment limit of starting point, electronic load is arranged with stair step current value, reads electronic load voltage measuring value Ui, wherein i=1,2,
3 ... n, n=(ImpStair step current value)/stair step current；
(8) by formula 2 to formula 5, the every electric current reduced after a current marching technique value institute in C-V characteristic is calculated
Corresponding theoretical voltage value Ui'；
(9) voltage measuring value U is calculatediWith theoretical voltage value Ui' difference DELTA Ui,
ΔUi=Ui-Ui' (i=1,2,3...n) formula 8
Wherein: Δ UiFor voltage measuring value UiWith voltage theoretical value Ui' error, and should meet
|ΔUiIn maximum value |≤| Ulm| formula 9
Wherein: UlmTo measure the allowable error limit specified in specification；
(10) VA characteristic curve of constant voltage region is drawn；
(11) statistical data and verifying conclusion is made.
It is understood that from formula 2 it is found that voltage is the function about electric current, but due to the limitation of equation, it can not
Current value is directly calculated by given voltage value.Here approximate method is used, by formula 2 it can be concluded that one group of voltage, electricity
The respective value of stream simultaneously builds table, to acquire current value corresponding to known voltage, need to only search in table with known voltage value most
Close voltage, corresponding current value can be approximated to be the corresponding current value of known voltage.Conclusion criterion is according to specific test
Sun square formation simulator technical requirements determine.
Sun square formation simulator C-V characteristic test macro of the invention is built as shown in Fig. 2, in order to shorten the testing time
And the generation of personal error is avoided, test process whole process uses computer long-distance control test equipment, the stepping of voltage, electric current
Amount determines that digital multimeter reads electronic load two according to the limits of error of electronic load voltage, current setting value
The voltage at end, digital voltmeter and measuring resistance are used to measure the electric current in circuit, and the sampling terminal of sun square formation simulator connects
In the positive and negative end of electronic load.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention by those skilled in the art, without departing from of the invention
Spirit and scope.In this way, if these modifications and changes of the present invention belongs to the model of the claims in the present invention and its equivalent technologies
Within enclosing, then the present invention is also intended to include these modifications and variations.
Claims (6)
1. a kind of sun square formation simulator C-V characteristic test method, it is characterised in that: sun square formation simulator and electronic load
Connection, computer are connected to sun square formation simulator and electronic load and the data collector for acquiring data, wherein electricity
Son load voltage or current can self-setting, testing procedure are as follows:
(1) basic parameter of sun square formation simulator power supply is set；
(2) Initial Voltage Value and stair step current value, Initial Voltage Value 0 are set；
(3) when power work is at constant current region, from voltage steps starting point to VmpElectronics is arranged with stepped voltage value in this segment limit
Load, one voltage steps value of voltage increase, each voltage steps read Electronic Negative later each time since Initial Voltage Value
Carry current measurement value Ii, wherein i=1,2,3 ... n, n=Vmp/ stepped voltage, wherein VmpFor the voltage of maximum power point；
(4) every voltage increased after a voltage steps value theoretical current value I ' corresponding in C-V characteristic is calculatedi；
(5) calculating current measured value IiWith theoretical current value I 'iDifference DELTA Ii:
ΔIi=Ii-I′i(i=1,2,3...n)
Wherein Δ IiFor current measurement value IiWith electric current theoretical value I 'iError, it should meet:
|ΔIiIn maximum value |≤| Ilm|
Wherein: IlmFor the defined measurement allowable error limit；
(6) VA characteristic curve in constant current region is drawn；
(7) it calculates and voltage VmpCorresponding current value Imp, wherein ImpFor the electric current of maximum power point, when power work is in constant pressure
When region, from ImpTo this segment limit of current marching technique value, electronic load is arranged with stepped voltage value, reads electronic load voltage measurement
Value Ui, wherein i=1,2,3 ... n, n=(ImpStair step current value)/stair step current；
(8) every electric current reduced after a current marching technique value theoretical voltage value U ' corresponding in C-V characteristic is calculatedi；
(9) voltage measuring value U is calculatediWith theoretical voltage value U 'iDifference DELTA Ui,
ΔUi=Ui-U′i(i=1,2,3...n)
Wherein: Δ UiFor voltage measuring value UiWith voltage theoretical value U 'iError, and should meet
|ΔUiIn maximum value |≤| Ulm|
Wherein: UlmFor the defined measurement allowable error limit；
(10) VA characteristic curve of constant voltage region is drawn；
(11) statistical data and verifying conclusion is made.
2. a kind of sun square formation simulator C-V characteristic test macro, it is characterised in that: sun square formation simulator and electronic load
Connection, computer are connected to sun square formation simulator and electronic load and the data collector for acquiring data, wherein electricity
The voltage or current of son load being capable of self-setting.
3. sun square formation simulator C-V characteristic test macro as claimed in claim 2, it is characterised in that: the data acquisition
Device includes digital multimeter and digital voltmeter.
4. sun square formation simulator C-V characteristic test macro as claimed in claim 3, it is characterised in that: digital multimeter comes
The voltage at electronic load both ends is read, digital voltmeter and measuring resistance are used to measure the electric current in circuit.
5. sun square formation simulator C-V characteristic test macro as claimed in claim 4, it is characterised in that: the electricity of electronic load
Pressure and electric current can be arranged according to stepping-in amount.
6. sun square formation simulator C-V characteristic test macro as claimed in claim 5, it is characterised in that: the stepping-in amount root
It is determined according to the limits of error of electronic load voltage, current setting value, the sampling terminal of sun square formation simulator connects in electricity
The positive and negative end of son load.
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| CN111711415B (en) * | 2020-06-28 | 2023-06-13 | 齐鲁工业大学 | Photovoltaic power station fault detection device with maximum power point tracking function |
| CN111711414B (en) * | 2020-06-28 | 2021-08-03 | 齐鲁工业大学 | Photovoltaic power station fault detection device with maximum power |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154242A (en) * | 2006-09-30 | 2008-04-02 | 中芯国际集成电路制造(上海)有限公司 | Method for model building based on changes of integrated circuit manufacture process performance |
| CN102298110A (en) * | 2011-08-29 | 2011-12-28 | 中国科学院计算技术研究所 | Method and device for measuring electric property of solar cell |
| CN102445645A (en) * | 2011-09-22 | 2012-05-09 | 西北工业大学 | Device and test method for measuring solar cell characteristic |
| CN102944786A (en) * | 2012-11-11 | 2013-02-27 | 青岛大学 | Method for measuring volt-ampere characteristic of electric material |
| CN104655923A (en) * | 2015-02-09 | 2015-05-27 | 普天智能照明研究院有限公司 | Automatic LED grain power tester |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004245651A (en) * | 2003-02-12 | 2004-09-02 | Hitachi Ltd | Circuit for measuring voltage-current characteristics and semiconductor testing apparatus |
-
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- 2016-10-14 CN CN201610898845.6A patent/CN106291401B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101154242A (en) * | 2006-09-30 | 2008-04-02 | 中芯国际集成电路制造(上海)有限公司 | Method for model building based on changes of integrated circuit manufacture process performance |
| CN102298110A (en) * | 2011-08-29 | 2011-12-28 | 中国科学院计算技术研究所 | Method and device for measuring electric property of solar cell |
| CN102445645A (en) * | 2011-09-22 | 2012-05-09 | 西北工业大学 | Device and test method for measuring solar cell characteristic |
| CN102944786A (en) * | 2012-11-11 | 2013-02-27 | 青岛大学 | Method for measuring volt-ampere characteristic of electric material |
| CN104655923A (en) * | 2015-02-09 | 2015-05-27 | 普天智能照明研究院有限公司 | Automatic LED grain power tester |
Non-Patent Citations (1)
| Title |
|---|
| 太阳方阵模拟器电源测试方法研究;孙毅;《太阳方阵模拟器电源测试方法研究》;20121231;67-71 |
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