CN205666799U - Solar cell power curve measurement system - Google Patents
Solar cell power curve measurement system Download PDFInfo
- Publication number
- CN205666799U CN205666799U CN201620289301.5U CN201620289301U CN205666799U CN 205666799 U CN205666799 U CN 205666799U CN 201620289301 U CN201620289301 U CN 201620289301U CN 205666799 U CN205666799 U CN 205666799U
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- load
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- voltage
- power curve
- control constant
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- 238000005259 measurement Methods 0.000 title abstract description 14
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 5
- 230000008676 import Effects 0.000 abstract 1
- 230000001568 sexual effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
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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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- Photovoltaic Devices (AREA)
Abstract
The utility model relates to a solar cell's measurement system specifically is a solar cell power curve measurement system, mainly comprises main control chip, numerical control constant current load, the load of numerical control constant voltage, electronic switch, button module and liquid crystal display. Electronic switch passes through the wire and links to each other with the button module, and main control chip imports the output signal of button module, and numerical control constant current load and numerical control constant voltage load input button module send main control chip's signal to, is the I who is on the liquid crystal display passed through to show in the output of numerical control constant current load and the load of numerical control constant voltage after main control chip handles V (electric current voltage), curve and P V (power voltage), curve. When measuring solar cell power curve, corresponding load voltage is noted, then scan the ranging of whole constant voltage load and note corresponding electric current to the ranging of the whole constant current load of first automatic scanning, and data processing finds out the coincide point of two sets of data to the data coincide point is boundary point, get before the constant voltage load segment data and constant current load after the segment data determine in order to accomplish solar cell power curve. The utility model has the advantages of measurement accuracy height, easy operation, low power dissipation, sexual valence relative altitude.
Description
Technical field
This utility model relates to the measurement system of solaode, and specifically a kind of solaode power curve measures system
System.
Background technology
Contemporary society is the society of an energy, and solar energy is continuously available development as a kind of green energy resource and seems all the more
Important.Solaode is when the different i.e. different loads of output voltage, and output is change, i.e. there is a maximum work
Rate point.Along with the development of contemporary society, solaode power measurement utilizes solar energy to also become the most to the full extent
One important topic, and traditional solaode power curve is measured technology and is mainly used numerical control Constant Current Load pattern or number
Control constant voltage load model.
As it is shown in figure 1, when using Constant Current Load pattern, electric current is started from scratch increases, when electric current is less than Im, electric current is every
Increase the voltage jump that a resolution surveyed less, therefore can obtain high-precision data.But when electric current increase to Im with
Time upper, electric current the most often increases a resolution voltage and strongly reduces, and the voltage being achieved in that has poor seriality.Thus may be used
Know: use Constant Current Load pattern that the curve of higher back segment curve i.e. Vm to the Voc section of degree of accuracy when measuring voltage, can be obtained, and
Leading portion 0 is poor to Vm section curve degree of accuracy.
When using constant voltage load model, voltage is started from scratch increase, and when voltage increases to Vm from 0, curent change is less only
Change to Im from Isc, but voltage electric current when Vm increases to Voc drastically changes.It can thus be appreciated that: use constant voltage load model to survey electricity
Back segment curve Vm to Voc section certainty of measurement is the highest to Vm section can to obtain the higher leading portion curve of degree of accuracy 0 during stream.
From above-mentioned situation, numerical-control constant-pressure load model or numerical control Constant Current Load pattern is the most solely used to measure the sun
Its degree of accuracy of method of energy battery power curve needs to be improved further.For overcoming the deficiencies in the prior art, improve solar-electricity
The degree of accuracy that pond power curve is measured, the utility model proposes and numerical control Constant Current Load and numerical-control constant-pressure load two ways are recorded
Power curve combine, the high accuracy data choosing two ways respectively is provided commonly for the survey of solaode power curve
Amount.
The present invention can the most accurately measure the I-V(current-voltage of solaode) curve and P-V(power vs. voltage)
Curve, and in liquid crystal screen display.
Summary of the invention
The purpose of this utility model be to provide a kind of can improve solaode power curve measuring accuracy novel too
Sun can measure system by battery power curve.
This utility model to achieve these goals, is achieved through the following technical solutions: a kind of solaode power is bent
System measured by line, mainly by main control chip, numerical control Constant Current Load, numerical-control constant-pressure load, electrical switch, key-press module and liquid crystal
Display screen forms；By key-press module switching working mode and setting reference value, after electrical switch is opened, when key-press module selects merit
During rate curved measurement pattern, system automatically starts Constant Current Load and scans its ranging and record the load voltage of correspondence, then sweeps
Retouching the ranging of numerical-control constant-pressure load and record the electric current of correspondence, data process the coincidence point finding out two groups of data, with data weight
Chalaza is boundary's point, and before taking numerical-control constant-pressure load, after segment data sum control Constant Current Load, segment data is bent to complete solaode power
Line measures, and at liquid crystal display screen display I-V(current-voltage) curve and P-V(power vs. voltage) curve.
Electrical switch is connected with key-press module by wire, and the output of main control chip input key-press module, numerical control constant current is born
Carry and numerical-control constant-pressure load inputs key-press module and sends the signal of main control chip, numerical control Constant Current Load and numerical-control constant-pressure load to
Output processed by main control chip after the I-V(current-voltage that is shown as in LCDs) curve and P-V(power vs. voltage)
Curve.
Preferably, described main control chip selects ATmega16 single-chip microcomputer.
Preferably, LCDs uses LCD12864, liquid crystal display screen display I-V(current-voltage) curve and P-V
(power vs. voltage) curve.
Described a kind of solaode power curve measures system, both can measure solaode power curve, again
Numerical-control constant-pressure load model or numerical control Constant Current Load pattern can be operated in as electronic load.
Described key-press module is for switching working mode and sets reference value, is provided with 5 buttons, is from left to right corresponding in turn to
Power curve measurement pattern (button 1), Constant Current Load pattern (button 2), constant voltage load model (button 3), current value set and (press
Key 4) and voltage value (button 5).
Described a kind of solaode power curve measures system, it is characterised in that when as electronic load, numerical control
The output of Constant Current Load and numerical-control constant-pressure load is regulated by the reference voltage that main control chip is given, and reference voltage passes through button mould
Button 4 or the button 5 of block set.
The beneficial effects of the utility model are: improve the existing solaode power curve single employing constant voltage of measurement and bear
Load pattern or single employing Constant Current Load pattern and the not enough limitation of precision, propose to combine constant voltage load model leading portion high accuracy
Data and the new solaode power curve measuring method of Constant Current Load pattern back segment high accuracy data, to improve solar energy
The degree of accuracy that battery power curve is measured.
Accompanying drawing explanation
Fig. 1 is solaode C-V characteristic and power, and wherein Im and Vm is that solaode power is for maximum
Electric current corresponding during value Pm and magnitude of voltage, Isc and Voc is respectively short circuit current and the open-circuit voltage of solaode.
Fig. 2 is theory diagram of the present utility model, 1 be main control chip, 2 be numerical control Constant Current Load, 3 negative for numerical-control constant-pressure
Carry, 4 be electrical switch, 5 for key-press module, 6 be LCDs.Wherein, key-press module (5) is provided with 5 buttons, from left to right
It is corresponding in turn to power curve measurement pattern (button 1), Constant Current Load pattern (button 2), constant voltage load model (button 3), electric current
Value sets (button 4) and voltage value (button 5).
Detailed description of the invention
Detailed description of the invention of the present utility model is described below in conjunction with the accompanying drawings.
As shown in Figure 1: the back segment curve i.e. Vm that can obtain degree of accuracy higher when using Constant Current Load to measure voltage arrives
The curve of Voc section, and leading portion 0 is poor to Vm section curve degree of accuracy.Use constant voltage load can obtain degree of accuracy relatively when surveying electric current
Back segment curve Vm to Voc section certainty of measurement is the highest to Vm section for high leading portion curve 0.
Being theory diagram of the present utility model shown in Fig. 2, this utility model uses numerical control Constant Current Load and numerical-control constant-pressure
The power curve that load two ways records combines, and the high accuracy data choosing two ways respectively is provided commonly for solar energy
The measurement of battery power curve.
Electrical switch (4) is connected with key-press module (5) by wire, the output of main control chip (1) input key-press module (5)
Signal, numerical control Constant Current Load (2) and numerical-control constant-pressure load (3) input key-press module (5) send the signal of main control chip (1) to,
The output of numerical control Constant Current Load (2) and numerical-control constant-pressure load (3) is shown as LCDs after being processed by main control chip (1)
(6) the I-V(current-voltage on) curve and P-V(power vs. voltage) curve.
After electrical switch is opened, system initialization, main control chip (1) internal hardware initializes, initialize including AD sampling,
Serial ports initializes, intervalometer initializes, I/O port initializes, and peripheral hardware initializes and includes that LCDs (6) initializes, power curve
Measure and start detection wait, DA output initialization etc..When the button 1 of key-press module (5) is pressed, select power curve measurement pattern
Time, system the most automatically start numerical control Constant Current Load (2) its start from scratch scan up and record correspondence magnitude of voltage, then open
Dynamic numerical-control constant-pressure load (3) its start from scratch and scan up and record the current value of correspondence.Data are carried out after obtaining two groups of data
Process, find out the coincidence point of above-mentioned two groups of data as boundary's point, take the front segment data sum control that numerical-control constant-pressure load (2) records permanent
The rear segment data that current load (3) records, in LCDs (6) upper display correspondence after processing by main control chip (1) data
I-V(current-voltage) curve and P-V(power vs. voltage) curve, and show the magnitude of voltage of maximum power point and current value and right
The maximum power value answered, completes solaode power curve and measures.
Additionally, key-press module (5) also may select button 2 or button 3, initialization system is electronic load mode of operation, and leads to
Cross button 4 and set current value or by button 5 setting voltage value.
The above is case study on implementation of the present utility model, all should contain within this utility model protection domain.
Claims (6)
1. solaode power curve measures a system, is mainly born by main control chip, numerical control Constant Current Load, numerical-control constant-pressure
Load, electrical switch, key-press module and LCDs composition；After electrical switch is opened, when key-press module selects power curve to survey
During amount pattern, system the most automatically scans the ranging of numerical control Constant Current Load and records the load voltage of correspondence, then scans numerical control
The ranging of constant voltage load also records the electric current of correspondence, and data process finds out the coincidence point of two groups of data, with data coincidence point is
Boundary's point, before taking numerical-control constant-pressure load, after segment data sum control Constant Current Load, segment data is surveyed to complete solaode power curve
Fixed, and at liquid crystal display screen display I-V curve and P-V curve.
A kind of solaode power curve the most according to claim 1 measures system, it is characterised in that main control chip selects
Use ATmega16 single-chip microcomputer.
A kind of solaode power curve the most according to claim 1 measures system, it is characterised in that pass through liquid crystal
Display screen display I-V curve and P-V curve, LCDs uses LCD12864.
A kind of solaode power curve the most according to claim 1 measures system, it is characterised in that both can measure
Solaode power curve, can be operated in numerical-control constant-pressure load model or numerical control Constant Current Load pattern as electronic load again.
5. measure system according to a kind of solaode power curve described in claim 1 or claim 4, it is characterised in that
5 buttons can be provided with by key-press module switching working mode and setting reference value, are from left to right corresponding in turn to power curve and survey
Amount pattern, Constant Current Load pattern, constant voltage load model, current value set and voltage value.
6. measure system according to a kind of solaode power curve described in claim 1 or claim 4, it is characterised in that
When as electronic load, the output of numerical control Constant Current Load and numerical-control constant-pressure load is adjusted by the reference voltage that main control chip is given
Joint, reference voltage by key-press module by key assignments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620289301.5U CN205666799U (en) | 2016-04-10 | 2016-04-10 | Solar cell power curve measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620289301.5U CN205666799U (en) | 2016-04-10 | 2016-04-10 | Solar cell power curve measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205666799U true CN205666799U (en) | 2016-10-26 |
Family
ID=57163742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620289301.5U Expired - Fee Related CN205666799U (en) | 2016-04-10 | 2016-04-10 | Solar cell power curve measurement system |
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| Country | Link |
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| CN (1) | CN205666799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018201313A1 (en) * | 2017-05-03 | 2018-11-08 | 优信电子（香港）有限公司 | Simplified system for use with solar energy module performance monitoring device |
-
2016
- 2016-04-10 CN CN201620289301.5U patent/CN205666799U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018201313A1 (en) * | 2017-05-03 | 2018-11-08 | 优信电子（香港）有限公司 | Simplified system for use with solar energy module performance monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170111 Address after: 238000 Chaohu Economic Development Zone, Anhui,, Chaohu, China, Chaohu College Patentee after: CHAO HU UNIVERSITY Address before: Half Tang Road Juchao District 238000 Anhui city of Chaohu province Chaohu College No. 1 Patentee before: Li Suping Patentee before: Kong Xiaodong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161026 Termination date: 20180410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |