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Dissertations / Theses on the topic 'Bypass diodes'

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1

Singh, Priyanka O. "Modeling of Photovoltaic Arrays under Shading Patterns with Reconfigurable Switching and Bypass Diodes." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1321559036.

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2

Dus, Ondřej. "Vliv zastínění na parametry solárních modulů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217647.

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3

COUTINHO, C. R. "O efeito do sombreamento e diodos de bypass em módulos fotovoltaicos." Universidade Federal do Espírito Santo, 2016. http://repositorio.ufes.br/handle/10/8423.

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Made available in DSpace on 2018-08-01T23:29:03Z (GMT). No. of bitstreams: 1 tese_10006_Carlos Roberto Coutinho.pdf: 5054016 bytes, checksum: b9cb8c373a427a129d3364cb221b5578 (MD5) Previous issue date: 2016-06-29<br>O presente trabalho aborda os efeitos provocados em sistemas de microgeração devido ao sombreamento de módulos fotovoltaicos. Embora os sistemas fotovoltaicos sejam uma alternativa na geração de eletricidade, devem-se levar em consideração as interferências provocadas por estruturas próximas à instalação. Estas estruturas podem provocar regiões de sombra, que afetam o rendimento
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4

Shafi, Muhammad Irfan, and Md Maidur Rehman Talukder. "Development of Hybrid Solar System." Thesis, Högskolan i Gävle, Akademin för teknik och miljö, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-13927.

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Technology replaces newer technology with improved efficiency. Solar technology is going to draw out a new life to make a green change in the terms of energy. As a result energy from the sunlight is being changed into electric energy by using solar cell. But still its efficiency could not be able to make a sense as a depending energy technology. In order to look up the solution, solar technology is changing rapidly to get maximum output. To take up this new challenge solar technology is trying to change its building component that are used to make solar cell, for example solar cell material, b
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Chocholáč, Jan. "Využití bypassových diod ve fotovoltaických panelech." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218888.

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This thesis deals with usage of bypass diodes in photovoltaic panels. Familiarize us with principles of photovoltaic modules and functions, their electrical characteristics and features. The central objective of this work is description of influence of bypass diodes on particularly shading photovoltaic panels and its volt-ampere characteristics. By the help of created software in Agilent VEE 8.0 simulate the shading panel and compare with real measurement.
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Gallardo, Saavedra Sara. "Analysis and simulation of shading effects on photovoltaic cells." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-21725.

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The usage of conventional energy applications generates disproportionate emissions of greenhouse gases and the consumption of part of the energy resources available in the world. It has become an important problem which has serious effects on the climatic change. Therefore, it is crucial to reduce these emissions as much as possible. To be able to achieve this, renewable energy technologies must be used instead of conventional energy applications. Solar Photovoltaic (PV) technologies do not release greenhouse gas emissions directly and can save more than 30 million tonnes of carbon per exajoul
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7

Nicolini, Andrea. "Simulazioni di moduli fotovoltaici ad elevate prestazioni." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/12220/.

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Il lavoro è basato sullo studio teorico e su simulazioni SPICE di due diverse tipologie di modulo fotovoltaico ad elevate prestazioni. In particolare, viene analizzata in dettaglio una possibile metodologia innovativa di interconnessione di celle solari in modulo. Questo approccio, chiamato nel presente elaborato “approccio Sliced-cells”, viene confrontato con una tipologia di modulo standard comunemente installata e ben conosciuta in tutte le particolarità. L’obiettivo è di studiare le differenze tra i due approcci in termini di performance elettriche e tipologia di interconnessione. Per e
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Nylund, Sophie, and Zahra Barbari. "Study of defects in PV modules : UV fluorescence and Thermographic photography for Photovoltaics (PV) Field Application." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-44120.

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For a PV plant it is of fundamental importance that the operation of the PV modules is free from faults or at least that the faults can be detected early, to ensure efficient electricity production. Some defects such as cracks can be seen in visible light while microcracks and damage to the silicon material can only be seen through special lighting. This study focuses on the most common defects in photovoltaic (PV) systems. Compare the infrared (IR) technology with the new ultraviolet (UV) fluorescence image technique for PV characterization, based on their accuracy and uncertainty factors und
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9

SIE, WUN-JHANG, and 謝文章. "Comparison of Interconnects of Solar Cells Without Bypass Diodes and Parallel Bypass Diodes under Partial Shaded Conditions." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/ys66m2.

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碩士<br>國立高雄科技大學<br>電機工程系<br>107<br>The partial shading conditions of solar photovoltaic systems will result in a significant reduction in output, which is usually improved by using parallel bypass diodes . If it can use the (Total Cross Tied, TCT) without parallel bypass diodes, can it bring more benefits? This research measured and discussed the effectiveness of interconnect arrays of solar cells without bypass diodes and the interconnection of parallel bypass diodes under shading conditions , the same load is used under different shading conditions and in each of the different arrays of solar
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10

Cheng, Yu-Ching, and 鄭宇淨. "High voltage CMOS photovoltaic module with bypass diodes." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/zfb3k9.

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碩士<br>國立中山大學<br>光電工程學系研究所<br>107<br>The open-circuit voltage of a silicon-based photovoltaic device (PV) is only 0.5V, which is not high enough to drive micro-electro-mechanical system (MEMS) devices. For example, driving an electrostatic actuator typically requires > 10V supply voltage and a low activation current (>1A). In this thesis we developed a 12.5-V high-voltage backside-illuminated CMOS PV mini-module by standard 0.18-m bulk complementary metal-oxide-semiconductor (CMOS) process. Serial connecting on-chip PV cells is achieved by localized substrate removal. To reduce the entire mod
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11

YANG, CHIH-YU, and 楊芷瑜. "Performance Comparison between Parallel Relays and Bypass Diodes Applied to a Partially Shaded PV Array." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/ddnp7z.

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碩士<br>國立高雄應用科技大學<br>電機工程系博碩士班<br>106<br>Under shaded conditions, a solar photovoltaic system may experience a major decrease in its output and parallel bypass diodes are usually used to solve the issue. However, in search of a more effective method is a never ending job. This study measured and discussed the efficiency of parallel relays and parallel bypass diodes in a solar cell array. For each shaded condition, a different number of parallel bypass diodes or relays are used. The two methods were compared in terms of their effect on solar cell output power. It is found that parallel relays
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12

Ciou, Jyun-Jia, and 邱俊嘉. "The High-Power Single-Chip Light-Emitting Diodes In Series Circuit Dimming Driver And Bypass Design." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/mv4m6s.

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碩士<br>國立雲林科技大學<br>電子工程系<br>102<br>In this thesis, the power chip design used the process of TSMC 0.25 um CMOS HIGH VOLTAGE MIXED SIGNAL through CIC process. The wafers had been implemented as the follows: (a) A single chip for LED dimming chip used two switches that are Up and Down function for brightness control. When the user presses the Up switch, LED brightness will continue to increase until it reaches maximum brightness; Down switch performs opposite function. Without using microprocessor for LED dimming, the system cost decreased. This chip can drive 60W LED in maximum, and the driving
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13

Fu, Jing-Yan, and 傅敬嚴. "A Study on Different Bypass Diode Configurations for Enhencing the Performance of Solar Arrays." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5676d4.

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碩士<br>國立高雄應用科技大學<br>電機工程系博碩士班<br>106<br>A solar power generation system is prone to be affected by shadowing. As long as one solar cell on the whole solar array is shaded, the solar array output power will drop drastically, so bypass diodes are usually used to overcome the shading problem and improve the array performance.The number of bypass diodes installed and the connection configuration will indirectly affect the output characteristics of the solar array. Due to the increase in the number of bypass diodes, the loss becomes larger, turning a good solution contributed bypass diode to a sche
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14

Huang, Chun-Chieh, and 黃俊傑. "A Study on Heat Transfer of Air-conditioning System Bypass Cooling Multi-chip Light Emitting Diode." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/85744198768178931422.

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碩士<br>國立勤益科技大學<br>冷凍空調系<br>101<br>This paper focus on the indium gallium nitride (InGaN) multi-chip for high power LED heat transfer and thermal cooling analysis. This research method based on multi-chip LED experimental study of aluminum extrusion heat sink and air-conditioning system forced cooling approach. An investigation of the heat transfer characteristics of the phenomenon of variation in order to improve performance and to help LED system as reference guideline for thermal design and assembly. This study package structure can use the silicon substrate material and fill the copper mate
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15

TUNG, HSU-CHIEH, and 董旭傑. "A Study on Solar Array Characteristics under Different Degrees of Shading and Different Blocking and Bypass Diode Configurations." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/298dva.

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碩士<br>國立高雄科技大學<br>電機工程系<br>107<br>Shading is a major factor impacting the power output of solar power systems. To counter this issue, bypass diodes are often installed to solar cells, while in the case of solar cells failing to generate power or itself becoming electrical loads due to uneven distribution of current in each array because solar cells are shaded, blocking diodes are often installed to prevent such a problem, and the configuration of bypass and blocking diodes can reduce the negative effect of shading. Previous studies have found that output characteristics are impacted by the num
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