CN109163974A - A kind of mechanical load of photovoltaic module deformation measuring device - Google Patents
A kind of mechanical load of photovoltaic module deformation measuring device Download PDFInfo
- Publication number
- CN109163974A CN109163974A CN201811197469.3A CN201811197469A CN109163974A CN 109163974 A CN109163974 A CN 109163974A CN 201811197469 A CN201811197469 A CN 201811197469A CN 109163974 A CN109163974 A CN 109163974A
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- bracket
- photovoltaic module
- mechanical load
- resistance wire
- measuring device
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- 229910003460 diamond Inorganic materials 0.000 claims abstract description 4
- 239000010432 diamond Substances 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 16
- 238000005070 sampling Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 238000012886 linear function Methods 0.000 claims description 3
- 238000000691 measurement method Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001006 Constantan Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003963 intermediate filament Anatomy 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/14—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulum; generated by springs tension
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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
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0617—Electrical or magnetic indicating, recording or sensing means
-
- 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
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of mechanical load of photovoltaic module deformation measuring devices, including bracket, spring, resistance wire, data collector, the bracket is the movable diamond structure that four root knot structure bars are formed, it is arranged on hinged-support below bracket, the resistance wire is horizontally set on mid-stent, resistance wire one end is connect by fixed block with bracket, the other end extends to form free end outward, the free end is connect with bracket by sliding sleeve, the end of free end connects data collector, the spring horizontal is arranged above resistance wire, the connection of two structural poles of both ends of the spring and top, the present apparatus can measure conventional ruler, the place that the tools such as tape measure are not measured, delta data can be recorded in real time using data acquisition instruments such as recording instrument without paper, obtain curve graph, it is intuitive to embody deformation quantity variation.
Description
Technical field
The invention belongs to photovoltaic module detection device technical fields, and in particular to a kind of mechanical load of photovoltaic module deformation quantity
Measuring device.
Background technique
Mechanical load tests one of the test item as IEC61215 indispensability, can simulate outdoor in reflection photovoltaic module
Applicable cases under physical condition instruct the research and development of photovoltaic module and material.Present mechanical load test equipment mostly uses cylinder
Sucker provides pressure, measures deformation quantity using displacement sensor or contactless monitoring system, involves great expense.Using hydraulic pressure or again
The mode of object static pressure, component centre position deformation quantity is unable to monitor, and mechanical load test will cause elementary battery plate crack,
Influence the reliability of power output and component.Therefore a kind of various shapes that can be tested open air and encounter in actual use are needed
The measuring device of change.
Summary of the invention
To solve the above problems, the invention discloses a kind of mechanical load of photovoltaic module deformation measuring devices, in conjunction with light
It lies prostrate component mechanical load test equipment or uses sandbag test method, the variation of photovoltaic module arbitrary point deformation quantity, solution can be measured
Component centre position deformation of having determined is not easy the problem of measuring, and applicability is high, and measurement accuracy is accurate.
In order to achieve the above objectives, technical scheme is as follows:
A kind of mechanical load of photovoltaic module deformation measuring device, it is characterised in that: adopted including bracket, spring, resistance wire, data
Storage, the bracket are the movable diamond structure that four root knot structure bars are formed, and are arranged on hinged-support below bracket, the resistance
Silk is horizontally set on mid-stent, and resistance wire one end is connect by fixed block with bracket, and the other end extends to form free end outward,
The free end is connect with bracket by sliding sleeve, and the end of free end connects data collector, and the spring horizontal is arranged in electricity
It hinders above silk, two structural poles of both ends of the spring and top connect.
As an improvement of the present invention, it is connected between four structural poles of the bracket by pivot pin.
As an improvement of the present invention, the data collector is the data acquisition instrument with constant current source power supply.
As an improvement of the present invention, the structural poles are rigid rod.
The beneficial effects of the present invention are:
A kind of mechanical load of photovoltaic module deformation measuring device of the present invention, can measure conventional ruler, tape measure
The place that equal tools are not measured, can record delta data using data acquisition instruments such as recording instrument without paper in real time, obtain song
Line chart, it is intuitive to embody deformation quantity variation.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Reference signs list:
1, bracket, 2, spring, 3, resistance wire, 4, sliding sleeve, 5, fixed block, 6, hinged-support, 7, free end, 8, pivot pin.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.
A kind of mechanical load of photovoltaic module deformation measuring device of the present invention, in conjunction with mechanical load test bracket,
Test device is placed in below photovoltaic module, deformation measurement uses quadrilateral structure, converts water for vertical direction deformation
Square to displacement, horizontal direction measures resistance using resistance wire, is believed the voltage of the resistance wire of real-time monitoring by mathematical relationship
Number, obtain the deformation quantity variation of photovoltaic module.
Photovoltaic module bears different load in different Service Environments, it is therefore desirable to carry out simulation meter in laboratory
The deformation for carrying out simulated assembly with loaded experiment is calculated, so that further design component is fixedly connected with mode to ensure component
Installation and normal service.
This experimental material mainly includes aluminum alloy plate materials and profile, resistance sampling constantan wire, conducting wire be several, screw pivot pin
Several, spring and recording instrument without paper (data collector) etc., aluminum alloy plate materials and profile and screw pivot pin are first made into one can
The diamond rack of change.
Experimental principle is exactly the electricity for converting the displacement signal of the effective length of resistance sampling constantan wire to recording instrument without paper
Press the amount of deflection variation of signal original position record component.Implement relatively easy for aluminum alloy frame, by component away from ground
Distance be converted into the effective length of resistance sampling silk and be again converted to electric signal.It is relatively multiple for the measurement of component internal system
It is miscellaneous, it needs to design a kind of mechanical device for converting vertical displacement to horizontal position, provides output space for the amount of deflection variation of component,
Then the functional relation between level resistance sampling silk effective length adjoint height and output voltage is established, subsequent number is convenient for
According to statistical analysis.
In order to meet above-mentioned requirements, this variation is realized using the device for being similar to jack.But there is no intermediate filament
The quadrilateral structure of thick stick is that do not have stability, that is to say, that parallelogram mechanism has uncertainty in the process of movement.I.e.
Make to fix a fulcrum by hinged-support 6, can not solve component cause under the influence of self gravity two of quadrangle it is right
Linea angulata is respectively offset from both horizontally and vertically.If it is vertical that the state for starting test cannot be guaranteed that two diagonal lines of quadrangle are located at
And horizontal direction, then being also difficult to correct in subsequent test process, the two directions once occur to deviate to will result in very greatly
Measurement error.
Therefore it has to be ensured that component original state two diagonal lines respectively with it is horizontally and vertically parallel, guarantor
Demonstrate,prove the synchronous stability for carrying out to guarantee test of movement of the structural poles of component during the test.
To solve the above-mentioned problems, resistance wire 3 is horizontally set on 1 middle part of bracket by the present invention, and 3 one end of resistance wire is fixed,
The other end can be produced relative sliding with bracket 1, it is ensured that two diagonal lines of component are respectively at vertically and horizontally state.Together
When in the horizontal direction of bracket add a spring, on the one hand in order to further ensure two structural poles on hinged-support are in
Identical original state is synchronous with circular motion to be carried out；On the other hand it can also test to apply in component amount of deflection experimentation and carry
The mode of lotus.
A constant-current supply is used when measurement, and (external power supply of the output electric current for 1A) as the system, paperless tests are real-time
Monitoring resistor rate is 6.1x10-4The voltage change of Ω/mm, the resistance sampling silk that diameter is 1mm, will be supervised in real time by mathematical relationship
The voltage of survey is converted into the amount of deflection variation of MUT module under test.Structural poles are perfect rigidity bars, in structural poles the center of circle in two holes away from
From for a, the length of Vertical Diagonal line is H, and the effective length of resistance sampling silk is L and its voltage is U, and entire loop current perseverance is
1A, displacement and voltage are positive value in this model, and the cross-sectional area and resistivity of sampling resistor silk are definite value, therefore using electricity
The linear function relationship of quadratic sum height square is pressed to be parsed, H2And U2For linear function relationship, extrapolates the present apparatus and receiving
The data of each point after to pressure distortion, draw curve graph, to illustrate the variable quantity of deformation.
Quadrangle bracket 1 and spring 2 of the present invention combine, and bracket can be made freely to change up and down, reflect deformation in real time
Variation.
The invention discloses a kind of mechanical load of photovoltaic module deformation measuring devices, convert water for vertical direction deformation
Square to displacement, horizontal direction measures resistance wire voltage change, by mathematical relationship by the resistance wire voltage signal of real-time monitoring
It is converted into height change, obtains the deformation quantity variation of photovoltaic module.This device combination mechanical load of photovoltaic module test equipment or
Using sandbag test method, the variation of photovoltaic module arbitrary point deformation quantity can be measured, position deformation among component is solved and is not easy
The problem of measurement, applicability is high, and accuracy is high.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.
Claims (5)
1. a kind of mechanical load of photovoltaic module deformation measuring device, it is characterised in that: including bracket, spring, resistance wire, data
Collector, the bracket are the movable diamond structure that four root knot structure bars are formed, and are arranged on hinged-support below bracket, the electricity
Resistance silk is horizontally set on mid-stent, and resistance wire one end is connect by fixed block with bracket, and the other end extends to form freedom outward
End, the free end are connect with bracket by sliding sleeve, and the end of free end connects data collector, and the spring horizontal setting exists
Above resistance wire, two structural poles of both ends of the spring and top are connected.
2. a kind of mechanical load of photovoltaic module deformation measuring device according to claim 1, it is characterised in that: the branch
It is connected between four structural poles of frame by pivot pin.
3. a kind of mechanical load of photovoltaic module deformation measuring device according to claim 1, it is characterised in that: the number
It is the data acquisition instrument with constant current source power supply according to collector.
4. a kind of mechanical load of photovoltaic module deformation measuring device according to claim 1, it is characterised in that: the knot
Structure bar is rigid rod.
5. a kind of measurement method of mechanical load of photovoltaic module deformation measuring device according to claim 1, feature
Be: external power supply when measurement using a constant-current supply as the system, output electric current are 1A, paperless tests real-time monitoring
Resistivity is 6.1x10-4Ω/mm, diameter be 1mm resistance sampling silk voltage change, by the voltage of real-time monitoring be converted by
The amount of deflection variation of component is surveyed, the distance in the center of circle in two holes is a in structural poles, and the length of Vertical Diagonal line is H, resistance sampling silk
Effective length be L and its voltage is U, entire loop current perseverance is 1A, H2And U2For linear function relationship, the present apparatus is extrapolated
The data of each point after receiving pressure distortion, draw curve graph, to illustrate the variable quantity of deformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811197469.3A CN109163974A (en) | 2018-10-15 | 2018-10-15 | A kind of mechanical load of photovoltaic module deformation measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811197469.3A CN109163974A (en) | 2018-10-15 | 2018-10-15 | A kind of mechanical load of photovoltaic module deformation measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109163974A true CN109163974A (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811197469.3A Pending CN109163974A (en) | 2018-10-15 | 2018-10-15 | A kind of mechanical load of photovoltaic module deformation measuring device |
Country Status (1)
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| CN (1) | CN109163974A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042465A (en) * | 1988-11-08 | 1990-05-30 | 阿尔卑斯肠衣加工股份有限公司 | Slaughterhouse demarcation, linear measure longimetry and packing method and the equipment thereof of intestinal segment |
| CN101832762A (en) * | 2010-05-14 | 2010-09-15 | 北京品傲光电科技有限公司 | Fiber Bragg grating strain sensor |
| CN104502202A (en) * | 2014-12-15 | 2015-04-08 | 吉林大学 | Online material biaxial static-dynamic performance test platform under service temperature |
| CN104567793A (en) * | 2014-11-27 | 2015-04-29 | 山东力诺光伏高科技有限公司 | Photovoltaic module deformation quantity testing device |
| CN106225755A (en) * | 2016-07-29 | 2016-12-14 | 武汉工程大学 | A kind of rhombus displacement amplifying mechanism and high-temperature flange joint deflection angle monitoring device |
| CN205898111U (en) * | 2016-07-29 | 2017-01-18 | 武汉工程大学 | High temperature flange connects measuring device that deflects based on rhombus displacement amplification mechanism |
| CN207317725U (en) * | 2017-06-20 | 2018-05-04 | 燕山大学 | A kind of measuring device of beam deflection |
| CN108507453A (en) * | 2018-03-01 | 2018-09-07 | 岳士凯 | Tunnel roof and floor deformation measuring device |
| CN209215098U (en) * | 2018-10-15 | 2019-08-06 | 连云港神舟新能源有限公司 | A kind of mechanical load of photovoltaic module deformation measuring device |
-
2018
- 2018-10-15 CN CN201811197469.3A patent/CN109163974A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042465A (en) * | 1988-11-08 | 1990-05-30 | 阿尔卑斯肠衣加工股份有限公司 | Slaughterhouse demarcation, linear measure longimetry and packing method and the equipment thereof of intestinal segment |
| CN101832762A (en) * | 2010-05-14 | 2010-09-15 | 北京品傲光电科技有限公司 | Fiber Bragg grating strain sensor |
| CN104567793A (en) * | 2014-11-27 | 2015-04-29 | 山东力诺光伏高科技有限公司 | Photovoltaic module deformation quantity testing device |
| CN104502202A (en) * | 2014-12-15 | 2015-04-08 | 吉林大学 | Online material biaxial static-dynamic performance test platform under service temperature |
| CN106225755A (en) * | 2016-07-29 | 2016-12-14 | 武汉工程大学 | A kind of rhombus displacement amplifying mechanism and high-temperature flange joint deflection angle monitoring device |
| CN205898111U (en) * | 2016-07-29 | 2017-01-18 | 武汉工程大学 | High temperature flange connects measuring device that deflects based on rhombus displacement amplification mechanism |
| CN207317725U (en) * | 2017-06-20 | 2018-05-04 | 燕山大学 | A kind of measuring device of beam deflection |
| CN108507453A (en) * | 2018-03-01 | 2018-09-07 | 岳士凯 | Tunnel roof and floor deformation measuring device |
| CN209215098U (en) * | 2018-10-15 | 2019-08-06 | 连云港神舟新能源有限公司 | A kind of mechanical load of photovoltaic module deformation measuring device |
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