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Diagnostic of photovoltaic cells by LBIV
Sládek, František ; Jandová, Kristýna (referee) ; Vaněk, Jiří (advisor)
This dissertation main point is to take up with fotovoltanic cells metering methods. Dissertation work dwells with the most common defects rising during the fotovoltanic cells manufacturing. Also, there is a diagnosis workshop proposal and realisation. Workshop uses the Light Beam Inducted Voltages (LBIV) method. By the help of this method, fotovoltanic cells structures are analised and compared to the Light Beam Inducted Current (LBIC).
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Workplace for testing of solar cells using LBIC method
Harašta, Tomáš ; Jandová, Kristýna (referee) ; Fořt, Tomáš (advisor)
Subject this diploma thesis is introduction to solar problems, with folow-up focus on solar elements and reflection about their defects. The next part is dedicated diagnostic method LBIC (Light Beam Induced Current) that help to detect defects of solar elements. The work is concerned with aplication this method in general view, from construction of workplace, throuhg hardware to software. The last part is focused on results processing and analysis.
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Software for LBIC method
Kučera, Filip ; Veselý, Aleš (referee) ; Vaněk, Jiří (advisor)
This thesis is focused on one of the diagnostic methods of fotovoltaic cells the LBIC (Light Beam Induced Current) method and the experimental measurement set-up for this method, which is operated by the Department of Electrical and Electronic Technology in Brno. The principle of photovoltaic cells function, the possibly used material and the problems usually encountred during production are described in this work,. There is also a review of methods that can be used to detect defects in photovoltaic cells. The main part is devoted to the proposal of a new experimental set-up for the measuring LBIC method and software development for this set-up. There is a proposal of a new method of measurement, which is also implemented using the development environment Borland C + +. Newly developed software for this method allows simpler operation and more efficient measurements.
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Photoluminescence diagnostic method with transmission illumination
Kafka, Martin ; Veselý, Aleš (referee) ; Vaněk, Jiří (advisor)
The aim of this diploma thesis is an innovation of photoluminescence measure research workplace for measurement of cells structure defects by method of transmissive illumination while employing the current methods of measurement of defect in the solar cells structure. The first part deals with explanation of historical development of solar energy, of how we can reach production of electric power with contribution of solar radiation and defines usability of solar cells in practice. The thesis further analyses a practical application of measurement via laboratory diagnostic methods used by Department of Electrotechnology Brno University of Technology. The second part is focused on mechanical design of experimental photoluminescence measure workspace used for quick diagnostic defects employing the rear arousing source for detection of defects with assistance of transmissive system of illumination. Finally, with co-operation of SOLARTEC s.r.o. three types of solar cells are measured by this new method and compared with results of measurement via diagnostic methods of LBIV (Light Beam Induced Current), LBIC (Light Beam Induced Voltage), Electroluminescence, Photoluminescence, and detection defects by radiation of Microplasma.
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Factors affecting the degradation of photovoltaic power plant
Mačát, Jakub ; Jandová, Kristýna (referee) ; Vaněk, Jiří (advisor)
My diploma thesis focuses in its theoretical part on the analysis of photovoltaic cells, panels, their properties and defects . Further there are described materials from which the cells and panels are produced today but also there are mentioned materials which could affect the near future. There are also state the methods of measurement of photovoltaic cells . The practical part analyzes selected photovoltaic panels, determines the level of degradation by measurement and calculation with using the intensity of solar radiation. All results are entred into graphs and tables.
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Upgrade of testing workplace for solar cells
Řezníček, Martin ; Křivík, Petr (referee) ; Vaněk, Jiří (advisor)
The master‘s thesis is focused on the modification of measurement workplace for solar cells. In the first part of the thesis are introduced general problems of the solar energy and possible use in the international power supply, the details about the photovoltaic effect, processing of solar cells and their subsequent parameters. More further in the text the autor is concerned with causes of solar cells defects formation and representation of the most important defects. For defects detection are known the detection methods of solar cells, which are generally described in the text. The second part of the thesis includes detailed description of the LBIC method and workplace both the VUT Brno, and in Solartec, Ltd. The most important point of this part is project and description of innovated workplace from hardware and software realization. There is out of print the function and the description of the user interface and subsequently there are mentioned results gained from original and innovated workplace. In the conclusion are summarized whole activities of the master’s thesis, described and evaluated achieved results and outlined the direction, where would the other development of the LBIC workplace on VUT Brno be proceeding.
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Factors affecting the degradation of photovoltaic power plant
Mačát, Jakub ; Jandová, Kristýna (referee) ; Vaněk, Jiří (advisor)
My diploma thesis focuses in its theoretical part on the analysis of photovoltaic cells, panels, their properties and defects . Further there are described materials from which the cells and panels are produced today but also there are mentioned materials which could affect the near future. There are also state the methods of measurement of photovoltaic cells . The practical part analyzes selected photovoltaic panels, determines the level of degradation by measurement and calculation with using the intensity of solar radiation. All results are entred into graphs and tables.
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Software for LBIC method
Kučera, Filip ; Veselý, Aleš (referee) ; Vaněk, Jiří (advisor)
This thesis is focused on one of the diagnostic methods of fotovoltaic cells the LBIC (Light Beam Induced Current) method and the experimental measurement set-up for this method, which is operated by the Department of Electrical and Electronic Technology in Brno. The principle of photovoltaic cells function, the possibly used material and the problems usually encountred during production are described in this work,. There is also a review of methods that can be used to detect defects in photovoltaic cells. The main part is devoted to the proposal of a new experimental set-up for the measuring LBIC method and software development for this set-up. There is a proposal of a new method of measurement, which is also implemented using the development environment Borland C + +. Newly developed software for this method allows simpler operation and more efficient measurements.
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Photoluminescence diagnostic method with transmission illumination
Kafka, Martin ; Veselý, Aleš (referee) ; Vaněk, Jiří (advisor)
The aim of this diploma thesis is an innovation of photoluminescence measure research workplace for measurement of cells structure defects by method of transmissive illumination while employing the current methods of measurement of defect in the solar cells structure. The first part deals with explanation of historical development of solar energy, of how we can reach production of electric power with contribution of solar radiation and defines usability of solar cells in practice. The thesis further analyses a practical application of measurement via laboratory diagnostic methods used by Department of Electrotechnology Brno University of Technology. The second part is focused on mechanical design of experimental photoluminescence measure workspace used for quick diagnostic defects employing the rear arousing source for detection of defects with assistance of transmissive system of illumination. Finally, with co-operation of SOLARTEC s.r.o. three types of solar cells are measured by this new method and compared with results of measurement via diagnostic methods of LBIV (Light Beam Induced Current), LBIC (Light Beam Induced Voltage), Electroluminescence, Photoluminescence, and detection defects by radiation of Microplasma.
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