CN205212782U - Photovoltaic module or array I -V characteristic measuring device - Google Patents
Photovoltaic module or array I -V characteristic measuring device Download PDFInfo
- Publication number
- CN205212782U CN205212782U CN201521051658.1U CN201521051658U CN205212782U CN 205212782 U CN205212782 U CN 205212782U CN 201521051658 U CN201521051658 U CN 201521051658U CN 205212782 U CN205212782 U CN 205212782U
- Authority
- CN
- China
- Prior art keywords
- load
- switch
- photovoltaic module
- voltage sampler
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 claims description 71
- 238000005259 measurement Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The utility model discloses a photovoltaic module or array I -V characteristic measuring device, including awaiting measuring unit, electric current - voltage sampler and industrial computer, its characterized in that: the unit that awaits measuring still includes second load and control gang switch's on -off controller including the subassembly that awaits measuring, gang switch and the first load that have positive output end and cathode output, measuring device, and the second load is programme -controlled load, and first load, second load and electric current - voltage sampler connect in parallel respectively on the positive pole and cathode output of the subassembly that awaits measuring, gang switch includes switch km and switch km+1, and switch km controls first load, switch km+1 control current - voltage sampler and second load, and the industrial computer is connected with electric current - voltage sampler, programme -controlled load, on -off controller. The utility model discloses can make photovoltaic module measure the I -V characteristic under true operating condition, measuring result is more accurate, and application scope is wide simultaneously.
Description
Technical field
The utility model relates to a kind of photovoltaic module or array performance testing apparatus, particularly relates to a kind of photovoltaic module or array I-V characteristic measuring device, belongs to solar photovoltaic assembly technical field.
Background technology
Along with the quick growth of World Economics, the demand of the energy is constantly increased.Solar energy is as the reproducible clean energy resource of a kind of low-carbon (LC), just worldwide flourish.Photovoltaic system receives the sunlight energy by installation photovoltaic component and converts solar energy into direct current, then by photovoltaic DC-to-AC converter, direct current is converted to alternating current.The energy output of photovoltaic module directly has influence on the income of photovoltaic plant owner, and in industry, the corporate facility of specialty is all in the Study of Lifting of carrying out assembly height energy output.
The I-V characteristic of solar cell is the important indicator of the performance evaluating solar cell, carries out monitoring have great importance to the I-V characteristic of solar cell.At present, the performance of photovoltaic module is tested photovoltaic module by indoor sunlight simulator mostly, by current-voltage (I-V) characteristic curve of test light photovoltaic assembly, carry out the power generation performance of evaluation component.But the I-V characteristic of testing solar battery can not reflect the performance of solar cell at actual service conditions under indoor stable state.In prior art, the method for outdoor test photovoltaic module and array I-V performance curve has two kinds, and a kind of is adopt portable I-V tester to measure, and usually once records a curve, can not carry out sequential scan tests; Another kind is can sequential scan tests, but under assembly is not operated in real operating load, and in the most of the time of not scans I-V curve, assembly belongs to open-circuit condition, can not reflect the performance of solar cell out of doors under actual service conditions.
Summary of the invention
The utility model is in prior art, photovoltaic module I-V characteristic test can not reflect that the real work state of assembly, method of testing are complicated, the accurate not technical problem of measurement result, a kind of photovoltaic module or array I-V characteristic measuring device are provided, improve the accuracy of photovoltaic module I-V feature measurement.
For this reason, the utility model adopts following technical scheme:
A kind of photovoltaic module or array I-V characteristic measuring device, comprise to-be-measured cell, current-voltage sampler and industrial computer, it is characterized in that: described to-be-measured cell comprises the testing component with cathode output end and cathode output end, linked switch and the first load, measurement mechanism also comprises the second load and controls the on-off controller of linked switch, second load is program control load, first load, on the positive pole that second load and current-voltage sampler are connected in parallel on testing component respectively and cathode output end, described linked switch comprises K switch m and K switch m+1, K switch m controls the first load, K switch m+1 controls current-voltage sampler and the second load, industrial computer and current-voltage sampler, program control load, on-off controller connects.
Further, described to-be-measured cell is several, linked switch comprises some groups corresponding with to-be-measured cell quantity accordingly, K switch m in each group of linked switch controls the first load, K switch m+1 controls current-voltage sampler and the second load, also comprises connection or disconnection that a censor key controls each testing component and current-voltage sampler and the second load.
Further, described testing component is the photovoltaic array of monolithic photovoltaic module or the series connection of polylith photovoltaic module and/or formation in parallel.
Further, described first load is electronic load and/or network load.
Photovoltaic module of the present utility model or array I-V characteristic measuring device, by arranging the first load, the second load, linked switch, when non-measured state, testing component is communicated with the first load, and assembly is in running order; When measuring state, assembly is communicated with the second load, and the second load is program control load, can be changed under the control of industrial computer by 0 to infinity, and the electric current of test testing component in load variations process and magnitude of voltage, obtain I-V characteristic curve; Therefore, assembly has more real working temperature and state when testing, and test result is more accurate; Set test interval by industrial computer, loop test can be carried out to testing component; Testing component is also not limited to monolithic element, also can measure the series connection of polylith assembly and/or the assembly array formed in parallel, applied widely; First load comprises electronic load, has the network load etc. such as the inverter of MPPT function, makes testing component more close to real work state.Testing procedure is simple, and measurement result is accurate, applied widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2;
In figure, 1 is to-be-measured cell, and 11 is testing component, and 12 is linked switch, and 13 is the first load, and 2 is current-voltage sampler, and 3 is industrial computer, and 4 is the second load, and 5 is on-off controller, and 6 is censor key.
Embodiment
In order to make those skilled in the art person better understand the utility model scheme, carry out clear, complete description below in conjunction with accompanying drawing to the technical solution of the utility model, part same as the prior art in the utility model is with reference to prior art.
Embodiment 1:
As shown in Figure 1, the photovoltaic module of the present embodiment or array I-V characteristic measuring device, comprise to-be-measured cell 1, current-voltage sampler 2 and industrial computer 3, described to-be-measured cell 1 comprises the testing component 11 with cathode output end and cathode output end, linked switch 12 and the first load 13, measurement mechanism also comprises the second load 4 and controls the on-off controller 5 of linked switch, second load 4 is program control load, can be changed by 0 to infinity under the control of industrial computer, first load 13, on the positive pole that second load 4 and current-voltage sampler 2 are connected in parallel on testing component respectively and cathode output end, described linked switch 12 comprises K switch m and K switch m+1, in the present embodiment, called after K1 and K2, K switch 1 controls the first load, K switch 2 controls current-voltage sampler 2 and the second load 4, industrial computer 3 and current-voltage sampler 2, program control load 4 and on-off controller 5 connect.
Testing component 11 can monolithic photovoltaic module or the series connection of polylith photovoltaic module and/or the in parallel photovoltaic array formed; First load 13 is electronic load or network load.
Use the measurement mechanism of the present embodiment, its method of measurement comprises the steps:
S0: before test starts, regulation and control industrial computer, sets each sweep time of I-V sweep test and the interval time of twice sweep;
S1: when non-I-V sweep test state, the K switch in linked switch
1closed, K switch
2disconnect, testing component is in running order under optimum load value;
S2: according to the I-V sweep test interval time of setting, industrial computer sends instruction, the K switch m that on-off controller controls in linked switch disconnects, K switch m+1 closes, within the sweep time of setting, second load changes under the instruction of industrial computer, and I, V value that current-voltage sampler record testing component exports in the second load variations process is also charged in industrial computer, completes an I-V sweep test;
S3: after single sweep operation completes, industrial computer sends instruction, and the K switch m that on-off controller controls in linked switch closes, and K switch m+1 disconnects, and testing component comes back to operating state;
S4: according to the I-V sweep test interval time of setting, start I-V sweep test next time, repeats above-mentioned steps S2 and S3, carries out loop test to testing component I-V characteristic.
Embodiment 2:
As shown in Figure 2, the difference of the present embodiment and embodiment 1 is, described to-be-measured cell 1 is several, the first to-be-measured cell, the second to-be-measured cell is described as at this ... n-th to-be-measured cell, the linked switch of each to-be-measured cell, the first linked switch, the second linked switch is described as at this ... n-th linked switch, K switch m in each group of linked switch controls the first load, K switch m+1 controls current-voltage sampler and the second load, also comprises a censor key 6 and controls each testing component and current-voltage sampler 2 and the second load 4.
Use the measurement mechanism of the present embodiment, its method of measurement comprises the steps:
For convenience, each testing component is called after first testing component, the second testing component, the n-th testing component respectively, each linked switch is called after first linked switch, the second linked switch respectively ... n-th linked switch, K switch m and K switch m+1 is labeled as K1 and K2, K3 and K4 successively ... Km and Km+1;
Concrete steps are as follows:
Before test starts, regulation and control industrial computer, sets each sweep time of I-V sweep test and the interval time of twice sweep;
When non-I-V sweep test state, the K switch in each linked switch
mclosed, K switch
m+1disconnect, each testing component is in running order under optimum load value;
Test starts, industrial computer sends appointment, on-off controller control switch K1 disconnects, K2 closes, now the K switch m of other testing component is still in closure state, Km+1 switch is in off-state, the first testing component and current-voltage sampler 2 and the second load 4 is connected by censor key 6, within the sweep time of setting, second load changes under the instruction of industrial computer, current-voltage sampler record testing component is at the I of the second load variations the output of process, V value, obtain the I-V characteristic curve of the first testing component and charge in industrial computer, complete an I-V sweep test of the first testing component, subsequently, K1 closes, and K2 disconnects, and the first testing component gets back to operating state, until the I-V sweep test interval time of setting, industrial computer sends instruction, and K3 disconnects, K4 closes, censor key connects the second testing component and current-voltage sampler 2 and the second load 4, and the principle with test the first testing component is identical, completes an I-V sweep test of the second testing component, K3 closes subsequently, and K4 disconnects, and the second testing component gets back to operating state, in like manner, the 3rd testing component, the 4th testing component is carried out successively ... the test of the n-th testing component, so circulates, and realizes real-time circulation continuous print I-V sweep test to multiple testing component.
Obviously, described embodiment is only section Example of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
Claims (4)
1. a photovoltaic module or array I-V characteristic measuring device, comprise to-be-measured cell, current-voltage sampler and industrial computer, it is characterized in that: described to-be-measured cell comprises the testing component with cathode output end and cathode output end, linked switch and the first load, measurement mechanism also comprises the second load and controls the on-off controller of linked switch, second load is program control load, first load, on the positive pole that second load and current-voltage sampler are connected in parallel on testing component respectively and cathode output end, described linked switch comprises K switch m and K switch m+1, K switch m controls the first load, K switch m+1 controls current-voltage sampler and the second load, industrial computer and current-voltage sampler, program control load, on-off controller connects.
2. photovoltaic module according to claim 1 or array I-V characteristic measuring device, it is characterized in that: described to-be-measured cell is several, linked switch comprises some groups corresponding with to-be-measured cell quantity accordingly, K switch m in each group of linked switch controls the first load, K switch m+1 controls current-voltage sampler and the second load, also comprises connection or disconnection that a censor key controls each testing component and current-voltage sampler and the second load.
3. according to the arbitrary described photovoltaic module of claim 1-2 or array I-V characteristic measuring device, it is characterized in that: described testing component is the photovoltaic array of monolithic photovoltaic module or the series connection of polylith photovoltaic module and/or formation in parallel.
4., according to the arbitrary described photovoltaic module of claim 1-2 or array I-V characteristic measuring device, it is characterized in that: described first load is electronic load and/or network load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521051658.1U CN205212782U (en) | 2015-12-16 | 2015-12-16 | Photovoltaic module or array I -V characteristic measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521051658.1U CN205212782U (en) | 2015-12-16 | 2015-12-16 | Photovoltaic module or array I -V characteristic measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205212782U true CN205212782U (en) | 2016-05-04 |
Family
ID=55850470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521051658.1U Active CN205212782U (en) | 2015-12-16 | 2015-12-16 | Photovoltaic module or array I -V characteristic measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205212782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391401A (en) * | 2015-12-16 | 2016-03-09 | 常州天合光能有限公司 | Photovoltaic module or array I-V characteristic measurement apparatus and method |
-
2015
- 2015-12-16 CN CN201521051658.1U patent/CN205212782U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391401A (en) * | 2015-12-16 | 2016-03-09 | 常州天合光能有限公司 | Photovoltaic module or array I-V characteristic measurement apparatus and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106899268B (en) | Multichannel photovoltaic module outdoor generating characteristic and grid-connected decaying situation test macro | |
| Bellini et al. | Simplified model of a photovoltaic module | |
| CN105391401A (en) | Photovoltaic module or array I-V characteristic measurement apparatus and method | |
| CN104617876B (en) | Outdoor test platform of solar photovoltaic modules and electricity generation performance online analysis method thereof | |
| CN105356528A (en) | Battery management system | |
| CN106452355B (en) | A kind of photovoltaic generating system maximum power tracking method based on Model Distinguish | |
| CN201141897Y (en) | Portable solar component tester | |
| CN106130480A (en) | A kind of photovoltaic module outdoor generating characteristic and decay situation test system | |
| CN104113281B (en) | Hyperchannel solar module test macro and dual intelligent scanning method | |
| CN115825633B (en) | Evaluation method and device of complete machine test system of photovoltaic inverter and upper computer | |
| CN201955441U (en) | Diode thermal cycle load test system | |
| CN104682439A (en) | Operation and monitoring method for grid-connected operation photovoltaic power generation system | |
| CN102496954A (en) | Stability judging method of grid-connected photovoltaic power station | |
| CN205212782U (en) | Photovoltaic module or array I -V characteristic measuring device | |
| CN108663568A (en) | Solar module debugging and testing device and testing method thereof | |
| CN104253586A (en) | Online measurement and evaluation device and method for electrical parameters of solar cell panel | |
| CN111342772A (en) | Photovoltaic power plant fault detection device of subassembly level | |
| CN201532447U (en) | Automatic monitoring system of electrical property of solar electric source | |
| CN206948262U (en) | Multichannel photovoltaic module outdoor generating characteristic and grid-connected decay situation test system | |
| CN103353576B (en) | Based on the photovoltaic module energy output method of measurement of volt-ampere characteristic | |
| Guerriero et al. | A simple test-bench to evaluate partial shading effects on the MPPT efficiency of a PV inverter | |
| Glaa et al. | Application of system modeling and the simulation of photovoltaic production | |
| Cui et al. | Design and performance testing of lead-acid battery experimental platform in energy storage power station | |
| CN204269781U (en) | A kind of LED street lamp test macro | |
| CN110868155A (en) | Method for measuring matching loss of photovoltaic string |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: trina solar Ltd. Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: TRINASOLAR Co.,Ltd. Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee before: trina solar Ltd. |