characteristic curves of a solar cell experiment

2.15 volts (R = ∞). If the resistance of the load is equal to the characteristic resistance of the solar cell, then the maximum power is transferred to the load, and the solar cell operates at its maximum power point. Fig. These techniques have been adequately modi¿ed, extended to cover the case of solar cells and used to extract the parameters of interest from experimental I-V characteristic of a Poly-Si solar cell under dark condition. Purpose of experiment: To study illuminated characteristics of a solar cell for different illuminations levels. With this project, you can get down to the atomic level and learn about the world of solid-state electronics as you investigate how solar cells work. Fig.1. A Low-cost Laboratory Experiment to Generate the I-V Characteristic Curves of a Solar CellSolar cells can be characterized by their current-voltage (I-V) characteristic curves. 2,3 I SC is the current measured when the output to the solar cell is shorted and the voltage across the solar cell is zero. Typical voltage-current characteristics, known as the IV curve, of a diode without illumination is shown in green in Figure 2. It consists of a rheostat, a daystar-meter to measure the solar radiation, two digital multimeters and a solar panel that has the- key specifications listed in Table 5.1. 0000051715 00000 n Note that most textbooks on solar cells still gen− erally assume that a solar cell behaves homogeneously [11,12]. solar module. A versatile measurement system for systematic testing and measurement of the evolution of the I-V characteristic curves of photovoltaic panels or arrays (PV generators) is proposed in this paper. 0000001544 00000 n Solar Energy Materials and Solar Cells, 2006, 90(1): 57–67 Principle and task The current-voltage characteristics of a solar cell are meas-ured at different light intensities, the distance between the light source and the solar cell being varied. These characteristics are also known as I–V curves, referring to the standard symbols for current and voltage. In addition to reflecting the performance of the solar cell itself, the efficiency depends on the spectrum and intensity of the incident sunlight and the temperature of the solar cell. 508 0 obj <>stream Current, Voltage and Power Curves A Current (I) versus Voltage (V) Curve of a PV / Solar Module (“I-V†Curve) shows the possible combinations of its current and voltage outputs. TEP. Solar Cell salman January 29, 2017 AIM : To draw the I-V characteristics of a solar cell and to find the efficiency and fill factor of a solar cell. The curves shown graphically in Fig. To measure the current-voltage characteristics of a solar cell at different light intensities, the distance between the light source and the solar cell is varied. Figure 5.1 I-V curves for different Rs. The voltage measured across the cell in this open circuit is called the open circuit voltage (Voc). 1 The light has the effect of shifting the IV curve down into the fourth quadrant where power can be extracted from the diode. The cell was uniformly illuminated with light from four photo- flood lamps which produced an intensity of 8.4f0.2mWcm-'over theactiveareaofthecell. 0000020323 00000 n To measure the current-voltage characteristics of a solar cell at different light … 0000005955 00000 n The exponential term is usually >> 1 except for voltages below 100 mV. Until 1994 there was no experimental technique available which could map the forward current of a solar cell with sufficient accuracy. 3 … well known. In the dark, its behaviour is identical to that of a diode. 0000000016 00000 n der to plot the current and . The current-voltage (I-V) curve for a PV cell shows that the current is essentially constant over a range of output voltages for a specified amount of incident light energy. The theoretical studies are of practical use because they predict the fundamental limits of a solar cell, and give guidance on the phenomena that contribute to losses and solar cell efficiency. The theoretical studies are of practical use because they predict the fundamental limits of a solar cell, and give guidance on the phenomena that contribute to losses and solar cell efficiency. 0000001932 00000 n %PDF-1.6 %âãÏÓ startxref This makes a solar cell an active device. Select the voltmeter range to 2V, current meter range to 250µA and load resistance (RL) to 50Ω. 1. 1: Experimental set-up for determining characteristic curves. 1. Moreover, the dependence of no-load voltage on temperature is determined. Solar Panels Characteristics Current, Voltage and Power Curves of a Solar (PV) Panel. 3. In addition to reflecting the performance of the solar cell itself, the efficiency depends on the spectrum and intensity of the incident sunlight and the temperature of the solar cell. January 2015; International Journal of Applied Engineering Research 10(20):17970-17975; Authors: A. 0000002562 00000 n to 20 cm and 40 cm). Plot the IV curve with current in the vertical axis, and voltage in the horizontal axis. Fig. 2. Figure 5.1 I-V curves for different Rs. 0 In this video we will Study the Characteristics of Solar cell. When there is no current drain, the solar module has an open-circuit voltage of approx. Solar Cell I-V Characteristic Curves show the current and voltage ( I-V ) characteristics of a particular photovoltaic ( PV ) cell, module or array giving a detailed description of its solar energy conversion ability and efficiency. In actual applications, the light absorbed by a PV cell will be a combination of direct solar radiation, as well as diffuse light bounced off of surrounding surfaces. Self Evaluation . Solar Cell I-V Characteristic Curves are graphs of output voltage versus current for different levels of insolation and temperature and can tell you a lot about a PV (Photovoltaic-which converts light energy into electricity) cell or panel’s ability to convert sunlight into electricity. The measurement system uses a circuit solution based on DC-DC converters that involves several advantages relative to traditional methods: simple structure, scalability, fast response, and low cost. The effect of light on the current-voltage characteristics of a p-junction. $�@�0���~&F�\�#i��o =� h�b```�.�� cb���B�[8^�6 478 0 obj <> endobj When operating in this quadrant, the solar cell supplies electrical power to the circuit that it is connected to. 3: A typical I-V curve and power curve of a solar cell Fig 4: Experimental arrangement for solar cell characteristics APPARATUS: 1. To do this, record two further characteristic curves, changing the distance between the lamp and the solar module (e.g. 0000017343 00000 n ]�M�X;-��s�'��� Solar Cell I-V Characteristic Curves are graphs of output voltage versus current for different levels of insolation and temperature and can tell you a lot about a PV (Photovoltaic-which converts light energy into electricity) cell or panel’s ability to convert sunlight into electricity. Two important points on the I -V characteristic curve are the short circuit current I SC and open circuit voltage V OC. 0000012182 00000 n Chercher les emplois correspondant à I v characteristics of solar cell experiment ou embaucher sur le plus grand marché de freelance au monde avec plus de 19 millions d'emplois. endstream endobj 540 0 obj <>/Metadata 537 0 R/Pages 536 0 R/OCProperties<>/OCGs[541 0 R]>>/StructTreeRoot 23 0 R/Type/Catalog>> endobj 541 0 obj <. An ideal solar cell could be modeled by a current source in parallel with a diode; in practical manner no solar cell is ideal, thats why shunt resistance and a series resistance component are added to the model. A solar cell is a device that uses sunlight to produce electricity. The -1 term in the above equation can usually be neglected. <<317EA9DE821A2747862BAE7757DD225C>]>> was investigated. 539 0 obj <> endobj 1 EXPERIMENT: To verify inverse square law of radiations using a Photo-electric cell. 17 V (Nominal) Thin Film Amorphous Silicon Solar Module, Four 100 W Halogen lamps, small electronic circuits to control load voltage of solar panel, standard Data Acquisition Equipment interfaced to a computer. 0000015057 00000 n 0000014763 00000 n Your experiment will measure the effect of changing light intensity on power output from the solar cell. This apparatus allows students in introductory physics course to plot I-V characteristics of a solar cell by a simple experiment. The equation for the IV curve in the first quadrant is: Ideal Solar Cell. Expose the solar cell to sun light 4. Normally no external bias is applied to the cell. Characteristic curves of a solar cell www.phywe.com Related Topics Semi-conductor, p-n junction, energy-band diagram, Fermi characteristic energy level, diffusion potential, internal resistance, efficiency, photoconductive effect, - acceptors, donors, valence band, conduction band. �}�q>pgy ����쒖��d_��t�i@6��+s����r8B+�7a���i'�6��h��HT�1 D����I������������d��`�� J0Tt4w�pCG� �a�Z� I = I L − I 0 [exp (q V n k T)-1] Read more about Ideal Solar Cell. 565 0 obj <>stream Solar cells are an alternative method for generating electricity directly from sunlight. The radi-ation values were changed in the range of 400W/m 2 to 1000 W/m 2 and output current and voltage behaviors were observed However, there is a noticeable e ect on the photocurrent. In the dark, its behaviour is identical to that of a diode. An individual silicon solar cell Experimental analysis of solar PV characteristics under standard condition . Load + _ Figure 1. Photo Cell Characteristics Applied Science Department NITTTR, Sector-26, Chandigarh . Fig. 0000002895 00000 n xÚb```b``şÌÀÊÀÀ–Æ À€ @1V� @òäM Ê\™]Œ×YûXJYïVN5=èWË—Ù(e¹\°�ãZ»ğ¬ÁºÒ¨¨¿÷eî¦èµŞ”Øc›"¸Ì*é˨+4,££�! endstream endobj 479 0 obj <. This makes a solar cell an active device. Important parameters such as fill factor, short circuit current, and open circuit voltage can be measured. characteristic energy level, diffusion potential, internal resist-ance, efficiency, photo-conductive effect, acceptors, donors, valence band, conduction band. photovoltaic cell characteristics. Figure 1: Typical I-V Characteristic Curve for a PV Cell. When operating in this quadrant, the solar cell supplies electrical power to the circuit that it is connected to. Set the solar cell facing towards a light source (LED) and bring the intensity of LED to the maximum using its rotary knob. With the solar cell being under neath the sun all day, this becomes an issue. Figure 1 shows a typical I-V curve for which the short-circuit output current, I SC is 2 A. 1: Experimental set-up for measuring the current when a capacitor is being charged. 3. %%EOF Note down the observation of voltage and current in Table 1. The efficiency of solar electric systems basically depends on the materials used in making the solar cells and regardless of the type of application: fixed or tracking photovoltaics (PV), the quality and quantity of power produced by PV systems depend on both the amount of solar radiation incident on the solar panels as well as the current and voltage characteristics of … The I-V Curve for a typical 12 Volt PV / Solar Panel is shown at Fig.2 above This Maximum Power Point in the example curve given above is where Vmp is 17 Volts, and the current Imp is 2.5 amps. Normally open circuit voltage of solar cell nearly equal to 0.5 to 0.6 volt. Experimental analysis of solar PV characteristics under standard condition . The basic solar cell structure. Connect the circuit as shown by dotted lines (Fig. È4Ë Ìii@‡€„˜CÓ:@´H΢İ`2ŞÒ@,v‡$?£ë�¤ÎˆoÓ^`°¢`ÇIù�¼‚1î�Qší`ÁÏÀÀ¸‚Kƒç‚kşÇ¨gÄ}Ü�–120œûó!““–�e¸` Ò#L In electronic components with more than two terminals, such as vacuum tubes and transistors, the current-voltage relationship at one pair of terminals may depend on the current or voltage on a third terminal. Set the distance between solar cell and lamp … 5. It is normally denoted by V oc. Procedure . These devices are stable in air, and post-fabrication processing allows for power conversion efficiencies approaching 3% in initial tests. APPARATUS : Solar cell, Light source, Basic circuit , connecting wires etc. 0000014515 00000 n At a distance of 20 cm the solar module must only be illuminated for the duration of the experiment. trailer Because the output terminals are shorted, the output voltage is 0 V. For an open output, the voltage, VOCis maximum (0.6 V) in this case, but the current is 0 A, as indica… A solar cell is a semiconductor PN junction diode, normally without an external bias, that provides electrical power to a load when illuminated (Figure 1). 0000008772 00000 n 2, and which result from plotting measured values, are the characteristic cur-rent-voltage curves.It can be seen that with a low load, the solar cell generates nearly the same idle voltage of approx. Using a diode factor between the values 1 and 5 may give a more accurate description of the solar cell characteristics. 0000002536 00000 n 1 and Fig. Solar Panel Experiment (Remote Trigger).. This curveshows how the voltage of the solar cell varies with the current drawn from it. 0000001355 00000 n V OC is the voltage measured when the solar cell has no A Low-cost Laboratory Experiment to Generate the I-V Characteristic Curves of a Solar CellSolar cells can be characterized by their current-voltage (I-V) characteristic curves. 2. The characteristic equation of a solar cell is given by: I = Iph Io exp q nkT (V + IRs ) 1 V + IRs Rsh (1.1) © 2010 Published by Elsevier Ltd. 0.5 V for all illuminating intensities, and … Characteristic curves of a solar cell www.phywe.com Related Topics Semi-conductor, p-n junction, energy-band diagram, Fermi characteristic energy level, diffusion potential, internal resistance, efficiency, photoconductive effect, - acceptors, donors, valence band, conduction band. Additional cell parameters and relationships are used to more fully characterize a solar cell. A versatile measurement system for systematic testing and measurement of the evolution of the I-V characteristic curves of photovoltaic panels or arrays (PV generators) is proposed in this paper. This is the I-V characteristic curve of a solar cell. %%EOF After plotting the I-V and P-V curves of solar cell by varying two main parameters, it was found that the solar radiation directly a ects the solar cell power and the open circuit voltage. 6.EXPERIMENTAL RESULTS AND VALIDATION In order to validate the Mat lab programming, The PV test bench of Figure 5.1 a,b. PV cells are usually coated with anti-reflective material so that they absorb the maximum amount of radiation possible. The author developed the measurement and monitoring program by . Visit http://www.exploregate.com for more videos on this topic. The following data are of importance when looking at a characteristic curve: • the open-circuit voltage (rotary switch "OPEN"), • the short-circuit current and • the maximum power point. was investigated. The I-V curve canshow how the solar cell will operate under varying parameters such as light intensity andtemperature. Solar cell I-V curves demonstrate the relationship between the current and voltage across the cell at the existing conditions of irradiance and temperature. 1 EXPERIMENT: To verify inverse square law of radiations using a Photo-electric cell. PV cells are usually coated with anti-reflective material so that they absorb the maximum amount of radiation possible. Your discussion about measuring the i-v curves of an illuminated solar cells is fruitful and attracted me.The question of Ananth is interesting and deserve effort to answer it. This demonstration elucidates a class of photovoltaic devices with potential for stable, low-cost power generation. Experiment 2B I-V Characteristic of Solar Cell Apparatus: Solar cell, rheostat, ammeter, voltmeter, illumination source and connecting wires. H �XĔ��i�� ���;��^���`/X� 1�@F��� ��b���qb�:�H�J"N\���4#0w d�]� Maximum Power Point of Solar Cell. Principle . We introduce an ultrathin donor-acceptor solar cell composed entirely of inorganic nanocrystals spin-cast from solution. Until 1994 there was no experimental technique available which could map the forward current of a solar cell with sufficient accuracy. Note that most textbooks on solar cells still gen− erally assume that a solar cell behaves homogeneously [11,12]. 6.EXPERIMENTAL RESULTS AND VALIDATION In order to validate the Mat lab programming, The PV test bench of Figure 5.1 a,b. Photo Cell Characteristics Applied Science Department NITTTR, Sector-26, Chandigarh . The maximum electrical power one solar cell can deliver at its standard test condition. Solar Cell salman January 29, 2017 AIM : To draw the I-V characteristics of a solar cell and to find the efficiency and fill factor of a solar cell. using LabVIEW environment. 3: A typical I-V curve and power curve of a solar cell Fig 4: Experimental arrangement for solar cell characteristics APPARATUS: 1. voltage characteristic of the solar cell. tested under standard testing condition with a solar simulator. characteristic curve experiment was partially funded by the Science, Engineering and Technology Gateway Ohio (SETGO) Summer Research Program at Bowling Green State University which facilitated undergraduate research and was sponsored by the National Science Foundation.1 Solar Cell I-V Characteristic Curves Solar cells are characterized by their current-voltage (I-V) characteristic curves… Theory . 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