CN101493429B - Solar light irradiation simulation test apparatus - Google Patents
Solar light irradiation simulation test apparatus Download PDFInfo
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- CN101493429B CN101493429B CN2009100463642A CN200910046364A CN101493429B CN 101493429 B CN101493429 B CN 101493429B CN 2009100463642 A CN2009100463642 A CN 2009100463642A CN 200910046364 A CN200910046364 A CN 200910046364A CN 101493429 B CN101493429 B CN 101493429B
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Abstract
A sunlight irradiation simulator comprises a power control unit, a power regulator, a sensor, a light wall, a control host and a display. The power regulator receives the radiation strength which is radiated by the light wall to a measured object by the sensor and then processes and transmits the radiation strength to the control host; by comparing the radiation strength with a set target value, the control host returns the result thereof to the power regulator which then regulates the power that is supplied to the light wall by a light source control unit according to the returned result and controls the radiation strength of the light wall. The simulator solves a series of problems in the aspect that the light source strength is not easily controlled. The light wall sends light wave which simulates the solar radiation spectrum, and thus causes the experiment to be more suitable for the real natural environment, truer and more reliable.
Description
Technical field
The present invention relates to a kind of test unit, particularly relate to a kind of sunshine simulation test device.Be particularly suitable for the test of the thermal property of building curtain wall.Also can be widely used in the test of solar cell test, testing of materials, biological test, Environmental Studies, light degradation accelerated test and cosmetic skin articles for use etc.
Background technology
Building curtain wall is the modern architecture peripheral structure, it is the interphase of indoor and outdoor surroundings, except the building enclosure that must possess early stage building safely, the safeguard function of becalming, keeping off the rain, also will come the circulation of various forms of energy such as sound inside and outside the pulpit, light, heat to realize needed comfort level by adjusting curtain wall construction.Thereby the thermal property of curtain wall is not only heat-insulating property, from the thermal conduction study angle; When outdoor temperature during less than the comfortableness temperature of indoor setting, curtain wall will stop that indoor heat scatters and disappears to outdoor, is called the heat-insulating property of curtain wall; When outdoor temperature during greater than the comfortableness temperature of indoor setting, curtain wall will stop that outdoor heat to indoor transmission, is called the heat-proof quality of curtain wall.
Entered since 21 century, energy problem is on the rise, and glass curtain wall is as a kind of building external envelope structure, and the thermal loss that its heat transfer heat consumption and heat loss by infiltration are produced accounts for 40%～50% of whole building energy consumptions.Being used to thus heat or cooling off the electric power energy that is consumed also constantly increases, and this and energy development strategy are runed counter to.If glass curtain wall adopts rational structure then can significantly reduce energy loss.
Building curtain wall (building doors and windows) conducts heat and normally carries out simultaneously with radiation, convection current, three kinds of modes of heat conduction, is the effect of combined action.Also to consider solar radiant heat.In the curtain wall construction of reality, not only there is the thermal loss that causes by the both sides air temperature difference, but also has thermal loss that causes by solar radiation and the thermal loss that causes by sky radiation.Solar radiation is the main cause that causes the indoor overheating in summer by the heat in curtain wall, the inlet chamber.
Solar simulator commonly used at present is to shine on the reflective mirror group by xenon lamp mostly, a series of actions such as reflection by minute surface and refraction, formation has the light beam of a part of sunshine and then shines on the testee, and this device is not easy operation, and limitation is bigger.Such as, be subjected to the external environment factor affecting bigger.Disadvantage is exactly the intensity that is not easy to control light source in addition.The heat of sunshine mainly concentrates on infrared band.For building curtain wall, solar light irradiation has two technical parameters: irradiation thing surface temperature T (unit: ℃) and solar radiation maximum intensity value I (unit: W/m
2).Existing equipment all only provides the former, and the latter's parameter is not provided.The device that has provides luminous intensity, (unit: be cd).The device that also has provides irradiance, (unit is lux).But these parameters and solar radiation maximum intensity value I (unit: W/m
2) there is not a direct reduction formula.
The 18th subitem STANDARD THERMAL CYCLING REGIME has clear and definite requirement to the thermal testing of curtain wall among the Britain Standard test methods for building envelopes (testing standard): " heating period, used infrared lamp should be with Imax+50/-0W/m
2Brightness, i.e. the medium tenacity of emittance, balanced irradiation sample outside surface.Heating period should also provide air vent, makes the temperature of sample extexine be no more than Tmax+5/-0 ℃.”。
Summary of the invention
The purpose of test unit of the present invention is exactly the irradiation of simulated solar irradiation, makes it meet all over the world situation at sunshine by adjusting.And the solution intensity of light source is not allowed a manageable difficult problem.
The present invention to achieve the above object, the technical scheme of being taked is:
A kind of solar light irradiation simulation test apparatus is provided, comprise the power control unit that is connected with power supply, the power regulator that is connected with power control unit, the sensor that is connected with power regulator respectively, lamp wall and main control system, the display that is connected with main control system; Described power regulator sends main control system to after treatment by the heat of sensor receiving light wall to the testee radiation; Main control system to the signal of its transmission with echo signal be set compare, the result of contrast returns power regulator again and shows or report to the police by display; Power regulator is adjusted the output power of power control unit control power supply to the lamp wall according to the result who returns, and the irradiation light intensity of control lamp wall.
Described lamp wall comprises wallboard and is distributed in bulb on the wallboard; Described light wave or the emission monochromatic optical wave that is distributed in the lamps emission solar simulating radiation spectrum on the wallboard.
Solar light irradiation simulation test apparatus of the present invention has significant effect.
● as above-mentioned structure, comprise the power regulator that is connected with power control unit in the solar light irradiation simulation test apparatus of the present invention, power regulator can be adjusted the output power of control power supply to the lamp wall in real time by power control unit, promptly controls the luminous intensity of lamp wall.Therefore, test unit of the present invention has solved the intensity of light source and has not allowed a manageable a series of difficult problem.
● as above-mentioned structure, comprise the lamp wall that is connected with power regulator in the solar light irradiation simulation test apparatus of the present invention, the emission that distributing on the lamp wall comprises the bulb of solar radiation spectrum light wave.Therefore, described lamp wall simulates the spectrum of each wave band in the sunshine, reproduces the characteristic of solar radiation truly.So, more can meet the physical environment that will face after the building materials more near the performance characteristic of actual sunshine (daylight) by the data of test unit test of the present invention.
● as above-mentioned structure, be included in the light wave that bulb on the lamp wall can be launched different-waveband spectrum according to testing requirements in the solar light irradiation simulation test apparatus of the present invention.So the present invention is widely used, as be applied to the test of solar cell test, testing of materials, biological test, Environmental Studies, light degradation accelerated test and cosmetic skin articles for use etc.
● as above-mentioned structure, solar light irradiation simulation test apparatus of the present invention has remarkable economic efficiency, traditional roasting mode general device power is greatly about 100KW, and operation is wasted time and energy very much, and solar light irradiation simulation test apparatus of the present invention, power only is 36KW, flexible and convenient operation, by one hour Time Calculation, compare the energy that the present invention just can save 64kw/1 hour with traditional mode, and the characteristics of maximum of the present invention, can reproduce the different-waveband of sunshine exactly truly, utilize light wave to shine truly, rather than baking.
● as above-mentioned structure, solar light irradiation simulation test apparatus of the present invention because the lamp wall can the simulated solar photoirradiation and the power of irradiation can adjust control, it can be in time for builder or tester provide true and reliable science data, aspect the material properties test in building trade, filled up a lot of blank.
● as above-mentioned structure, solar light irradiation simulation test apparatus of the present invention has simple in structure, and is easy to operate, and light-wave band is complete, reproduced the performance of occurring in nature sunshine truly, and test unit of the present invention not the external environment factor at tested person scene disturb.
● as above-mentioned structure, solar light irradiation simulation test apparatus of the present invention meets above-mentioned simulated solar rayed fully, and two technical parameters are provided: irradiation thing surface temperature T (unit: ℃) and solar radiation maximum intensity value I (unit: W/m
2).Meet the requirement of the STANDARD THERMAL CYCLINGREGIME of the 18th subitem among the Standard test methods forbuilding envelopes: " heating period, used infrared lamp should be with Imax+50/-0W/m
2Brightness, i.e. the medium tenacity of emittance, balanced irradiation sample outside surface.Heating period should also provide air vent, makes the temperature of sample extexine be no more than Tmax+5/-0 ℃ ".
Description of drawings
Fig. 1 is the structural representation of test unit of the present invention;
Fig. 2 is the structural representation of test unit one embodiment of the present invention.
Embodiment
Further specify architectural feature of the present invention below in conjunction with drawings and Examples.
As shown in Figure 1 and Figure 2, test unit of the present invention comprises the power control unit 3 that is connected with power supply (power supply is the externally fed system in the present embodiment), the power regulator 1 that is connected with power control unit 3, the sensor 5 that is connected with power regulator 1 respectively, lamp wall 6 and main control system 2 (main control system 2 is the PCL main frame in the present embodiment), the display 4 that is connected with main control system 2; Described power regulator 1 sends main control system 2 by the heat of sensor 5 receiving light walls 6 to the radiation of testee institute to through the temperature signal after power regulator 1 processing; Main control system 2 to its temperature signal with target temperature be set compare, the result of contrast returns power regulator 1 again and shows or report to the police by display 4; Power regulator 1 is adjusted the output power of power control unit 3 control power supplys to lamp wall 6 according to the result who returns, and promptly adjusts the irradiation intensity of control lamp wall 6.
This test unit can be adjusted the power bracket of lamp wall according to the request for utilization scope arbitrarily by power regulator 1.Its power regulator 1 is the core component of whole device.In the present embodiment, comprise precision temperature control module and PID closed-loop control system in the power regulator 1.This power regulator 1 is that model is LDS60, has another name called technical grade SCR three phase power adjuster (power regulating eqiupment), and being produced by Taiwan Hua Te company provides.Has rated operational voltage up to the 480VAC blown fuse; input phase shortage detecting defencive function, intelligent fan; the extensive protection circuit function of built-in overheating protection, multiple input signal control (0-5V; 0-10V; 0-20mA; 4-20mA) or manually (outside VR) adjustment, SCR lean against high shock-resistant input, built-in quick semiconductor grade fuse; the voltage dependent resistor (VDR) protection; moment surge protection function, complete machine mold forming structure; exempt from the digitizing of screw lifting type panel designs; adopt up-to-date single-chip microcomputer design concept, digitizing power is adjusted.
As Fig. 1, shown in 2, power regulator 1 and sensor 5, control (PLC) main frame 2 and lamp wall 6 are connected, sensor can in time be sent to power regulator to signal after collecting signal, power regulator is handled the signal that self accepts in real time according to self-contained PID closed-loop control system, data after the processing (with the aspect of 4-20mA) are sent to control (PLC) main frame, control (PLC) main frame compares computing according to the data of this moment again, then comparing result is shown (perhaps reporting to the police) by display, operating personnel can see the real time data of operation site very intuitively, and operating personnel can realize self-power adjustment by the device of functional regulator self, thereby come the intensity of illumination of simulated solar irradiation according to the needs of test site, the intensity of illumination of correspondence was big when power was big, otherwise corresponding intensity of illumination is little.Thereby reproduce the lighting effect of natural light truly.
The main control system of test unit of the present invention is by display simultaneously displays temperature and power, and the user can be according to the own required data of needs selection.
As shown in Figure 1, 2, the power control unit 3 of test unit of the present invention directly is connected with the externally fed system, and power regulator 1 is connected with power control unit 3 again, and this power regulator 1 is its core component.Sensor 5 is received first interface of power regulator 1, and the load end of power regulator 1 is connected with lamp wall 6, and the communication port of power regulator 1 is connected with main control system 2, and main control system 2 is connected to display 4.
For test unit of the present invention, the perform region uniformity of radiation is the characteristic of spectrum, and general device is to be difficult to realize.We have adopted the good pid control function of power regulator self, come the signal of timely receiving sensor feedback, change the output power of lamp wall constantly, make external factor be reduced to minimum to the influence of test material.The time stability of this solar simulator output light is the testing efficiency that can not influence material for the fluctuation that guarantees light intensity.Even without the optical density control system, can reach corresponding standard equally.
Test unit of the present invention can be adjusted power bracket arbitrarily according to the request for utilization scope, and its power regulator can be hung by fishhook, goes up lower-pilot so very freely, and is convenient.
As shown in Figure 1, 2, power regulator 1 by the signal that receives sensor 5 and spread out of after, by the close loop control circuit of self, carry out data operation, calculated result is transferred to the PLC main frame again; The PLC host control program, be responsible for the management to power supply, time that the recording lamp wall is lit a lamp, power supply output data, power supply status is monitored, notes abnormalities and report to the police, simultaneously irradiance is measured, the signal that sends according to power regulator, send the output of adjusting power supply, realizing the automatic control of light intensity, and the result by the radiation of display display light source, make process of the test very directly perceived.In the present embodiment, power regulator adopts high-power program-controlled unit, and separate unit is a 36kW power, and program-controlled unit has the constant current mode of operation, can control the intensity and the stability of output current automatically according to the order of PLC main frame.Control has limit priority to the inside output lock function of power supply to power supply, utilizes this function to realize the protection of lamp wall.In the present embodiment, irradiance adopts irradiation sensor to carry out relative measurement, is output as the voltage signal of 0～1V, and signal is drawn out to outside the container, is input to the PLC main frame by digital multimeter.The every 10s of the control program of PLC main frame once samples to the irradiance measurement signal, calculate irradiance and irradiation instability and show and store, simultaneously control program is also according to the deviation of irradiance actual value and setting value, adjust electric power outputting current value and driving power output by power regulator, realize the irradiance definite value control of closed loop.Power controller itself also is the key link of irradiance control, utilizes the constant current output function of power regulator itself, can guarantee the accurate and stable of electric power outputting current value, and then guarantees luminous the stablizing of lamp wall.The two-stage feeding back closed-loop control system that this current feedback and irradiance feedback are formed both can have been realized the control of irradiation instability, also can realize the control and the adjustment of irradiance.Test unit of the present invention is core with the power regulator, and each system unit forms a close loop control circuit in the power regulator.The Current Temperatures of temperature sensor measurement control loop then according to certain control algolithm, calculates the output of each control loop, adjusts the size of heating power, realizes the set point temperature control of closed loop.Realize that setting, the temperature monitoring of target temperature are reported to the police and the adjusting certainly etc. of controlled variable with PLC main frame and power regulator.
In the present embodiment, described power control unit comprises three phase controlling switch and protector, as shown in Figure 2.Described sensor is irradiation sensor or temperature sensor.
As shown in Figure 1, 2, described lamp wall comprises wallboard and is distributed in bulb on the wallboard.The described lamps emission that is distributed on the wallboard comprises the light wave of solar radiation spectrum, perhaps launches monochromatic optical wave.For example, by modes such as optical filter or narrow ripple light transmission piece are housed on bulb, make the emission of lamp wall comprise solar spectrum---red (700 nanometer), orange (620 nanometer), yellow (580 nanometer), green (510 nanometer), indigo plant-indigo (470 nanometer), purple (420 nanometer).Wherein, infrared band accounts for 48.3%, and visible light wave range accounts for 43%, and ultraviolet band accounts for 8.7%.
In the present embodiment, wallboard is of a size of: 10m*1m, lamp is apart from being: 235mm, bulb quantity is: 160, every square metre is 16 bulbs.Bulb is the emission infrared ray bulb.The characteristic of measuring its test unit of the present invention (lamp wall) is shown in table 1,2,3,4,5.Wherein table 1 is the measurement of space distribution homogeneity, Spectral matching degree and time stability for test unit of the present invention.Table 2,3,4,5 is on-the-spot actual test data.
As shown in table 1, space distribution homogeneity (Irradiance uniformity) conformance with standard ASTME 927-91 (being Specification for Solar Simulation for Terrestrial PV Testing---the standard of the sun power simulation test standard of land photovoltaic) is a B level (Class B), and conformance with standard IEC 904-9 (being Solar Simulator Performance Requirements---the standard of solar simulator performance requirement) is a B level (Class B); Spectral matching degree (AM 1.5G Spectralmatch) conformance with standard ASTM 927-91 is A level (Class A), and conformance with standard IEC 904-9 is A level (Class A); Time stability (Temporal stability) conformance with standard ASTM 927-91 is A level (Class A), and conformance with standard IEC 904-9 is A level (Class A).Test unit of the present invention as seen from Table 1 is to meet ASTM 927-91 and IEC 904-9 standard-required fully.
Table 1
| Irradiance?uniformity | The space distribution homogeneity | |
| ASTM?927-91 | Class?B | |
| IEC?904-9 | Class?B | |
| AM?1.5G?Spectral?match | The Spectral matching degree | |
| ASTM?927-91 | Class?A | |
| IEC?904-9 | Class?A | |
| Temporal?stability | Time stability | |
| ASTM?927-91 | Class?A | |
| IEC?904-9 | Class?A |
Table 2 is on-the-spot actual test data 1:
Table 3 is on-the-spot actual test data 2:
Table 4 is on-the-spot actual test data 3:
Table 5 is on-the-spot actual test data 4:
On the data of above-mentioned table 2,3,4,5 on-the-spot actual test, power W in the test unit of the present invention on the lamp wall and radiation heat W/m
2Can regulate arbitrarily and control.If, when testee apart from lamp wall 500mm place, requiring the temperature on the testee is 80 ℃, then the temperature on the testee is set is that 80 ℃ and the power delivery that calculates corresponding lamp wall are given power modulators to main control system, power modulators is adjusted power control unit control power supply by these data provides this power to the lamp wall, and keeps this power till main control system change data always.So when main control system is not changed data, when the temperature on the testee rises to 80 ℃, power supply meeting automatic cutout, promptly test unit can cut out voluntarily, keeps constant temperature (error range is 1 degree); When the temperature on the testee was lower than 80 ℃, power supply can be connected voluntarily, restores electricity.Circulation successively.
Claims (4)
1. solar light irradiation simulation test apparatus, comprise the power control unit that is connected with power supply, it is characterized in that comprising the power regulator that is connected with power control unit, the sensor that is connected with the power regulator input interface, the lamp wall that is connected with the power regulator load end, the main control system that is connected with the power regulator communication port, the display that is connected with main control system; The PID closed-loop control system is contained in described power regulator inside;
Described power regulator is by the heat of sensor receiving light wall to the testee radiation, send main control system after treatment to, main control system to signal that it received with echo signal be set compare, the result of contrast returns power regulator again and shows or report to the police by display; Power regulator is adjusted the output power of power control unit control power supply to the lamp wall according to the result who returns, the radiation intensity of control lamp wall irradiation.
2. solar light irradiation simulation test apparatus according to claim 1 is characterized in that described lamp wall comprises wallboard and is distributed in bulb on the wallboard.
3. solar light irradiation simulation test apparatus according to claim 2 is characterized in that being distributed in the light wave of the lamps emission solar simulating radiation spectrum on the wallboard, perhaps launches monochromatic optical wave.
4. solar light irradiation simulation test apparatus according to claim 1 is characterized in that described power regulator inside contains the precision temperature control module.
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Families Citing this family (6)
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| CN101806762A (en) * | 2010-05-31 | 2010-08-18 | 哈尔滨工业大学 | Method for identifying thermal defects by means of auxiliary heat source under condition of small temperature difference |
| CN102486432A (en) * | 2010-12-03 | 2012-06-06 | 西安大昱光电科技有限公司 | Solar radiation test apparatus |
| JP5630457B2 (en) * | 2012-04-19 | 2014-11-26 | ウシオ電機株式会社 | Light irradiation device for solar cell testing |
| EP2824434A1 (en) * | 2013-07-12 | 2015-01-14 | Applied Materials Italia S.R.L. | System and method for calibrating a light source for simulating a spectrum of solar radiation |
| CN109138518B (en) * | 2018-10-08 | 2019-08-06 | 西安建筑科技大学 | A kind of phase-change heat collecting and storing wall solar energy housing experimental system |
| CN114354131A (en) * | 2022-03-18 | 2022-04-15 | 中国飞机强度研究所 | Solar radiation test control system for airplane test and control method thereof |
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| CN201402252Y (en) * | 2009-04-28 | 2010-02-10 | 上海建科检验有限公司 | Simulative sunlight irradiation device used for detecting curtain wall performance |
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| CN201402252Y (en) * | 2009-04-28 | 2010-02-10 | 上海建科检验有限公司 | Simulative sunlight irradiation device used for detecting curtain wall performance |
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