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Dissertations / Theses on the topic 'Perturb and observe approach'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Persen, Todd. "FPGA-BASED DESIGN OF A MAXIMUM-POWER-POINT TRACKING SYSTEM FOR SPACE A." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3126.

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Satellites need a source of power throughout their missions to help them remain operational for several years. The power supplies of these satellites, provided primarily by solar arrays, must have high efficiencies and low weights in order to meet stringent design constraints. Power conversion from these arrays is required to provide robust and reliable conversion which performs optimally in varying conditions of peak power, solar flux, and occlusion conditions. Since the role of these arrays is to deliver power, one of the principle factors in achieving maximum power output from an array is t

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2

Tavares, Carlos Antônio Pereira. "Estudo Comparativo de Controladores Fuzzy Aplicados a um Sistema Solar Fotovoltaico." Universidade do Estado do Rio de Janeiro, 2009. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=7509.

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Neste trabalho apresenta-se o modelo de um controlador baseado em Lógica Fuzzy para um sistema de energia baseado em fonte renovável solar fotovoltaica (photovoltaic - PV) multi-string em operação isolada, para o aproveitamento da máxima potência desta fonte. O sistema é composto por painéis solares, conversor CC-CC tipo elevador de tensão (boost), armazenamento por banco de baterias, inversor trifásico e carga trifásica variável. O sistema fotovoltaico foi modelado no MATLAB/Simulink de forma a representar a curva característica V-I do módulo PV, e que é baseado nos dados disponíveis em data-

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VACCARO, LORENZO. "A PERTURB-SEQ SATURATION MUTAGENESIS APPROACH TO DISSECT THE MOLECULAR BASES OF GENETIC DISEASES." Doctoral thesis, Università degli Studi di Milano, 2022. https://hdl.handle.net/2434/946457.

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The improvement of novel sequencing technologies is quickly transforming the scientific investigation and the therapeutic treatments of rare genetic diseases, which research is hampered by the limited cohort of diagnosed patients and by the difficulty of evaluating the effect of Variants of Unknown Significance (VUS). In silico predictors represent the gold standard of clinical bodies for interpreting mutations identified through sequencing approaches. Unfortunately, many of them are classified as VUS, leading to wrong diagnoses and inadequate treatment of patients. To address this point, MIT

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4

Jahanbakhsh, David. "Implementation of DC-DC converter with maximum power point tracking control for thermoelectric generator applications." Thesis, KTH, Elektrisk energiomvandling, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-109705.

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A heavy duty vehicle looses approximately 30-40 % of the energy in the fuel as waste heat through the exhaust system. Recovering this waste heat would make the vehicle meet the legislative and market demands of emissions and fuel consumption easier. This recovery is possible by transforming the waste heat to electric power using a thermoelectric generator. However, the thermoelectric generator electric characteristics makes direct usage of it unprotable, thus an electric power conditioner is necessary. First a study of dierent DC-DC converters is presented, based on that the most suitable conv

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Ahmed, Rana. "Energy management and control for hybrid renewable energy sources in rural area." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4353.

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Cette thèse propose principalement, un algorithme État-Flow MPPT basé P&O, amélioré avec deux degrés de liberté, dans lequel le système événementiel (MPPT) de comportement est modélisé par le décrivant en terme de transition entre les états, sous certaines conditions. Secondairement, un algorithme étendu MPPT, base d'exploitation en parallèle de l'état-débit est en outre proposé d'être une solution difficile pour le contrôle indépendant du système hybride, où la caractéristique de contrôle continu peut se présenter au cours d'un certain état de travail tout en discrète, est indiquée le lon

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6

Lai, Bo-rong, and 賴伯榕. "Assessment of Perturb-and-Observe MPPT Algorithm." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/22553800696693928301.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>102<br>The output characteristics of solar cells are affected by weather and environmental factors, that is, cell output voltage and current vary according to changes in irradiance and temperature. Therefore, a unique maximum power point (MPP) exhibits under specific irradiance and temperature. For photovoltaic generation system (PGS), the maximum power point tracking (MPPT) algorithm is an essential technique to attain maximum power from solar cells. Among MPPT techniques proposed and implemented in the literatures, the perturbation and observation (P&;O) method is

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7

游一峰. "A Study on Perturb & Observe Maximum Power Point Tracking Method for Photovoltaic Systems." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/96392966304929542013.

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碩士<br>明新科技大學<br>電機工程研究所<br>97<br>Due to the characteristic of photovoltaic (PV) modules with nonlinear voltage-current relation and variation of the maximum power point (MPP) with respect to irradiation and temperature, a maximum power point tracking (MPPT) techniques is commonly used in PV systems to maximize the power drown from PV systems under varying atmospheric conditions. Among the MPPT techniques, perturb and observe (P&O) MPPT algorithm is the most commonly used method due to its ease of implementation. However, a drawback of the conventional P&O MPPT technique is that, at steady stat

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AL-Zu\'\'bi, Omar Aqil Ayed, and 艾昂明. "An Improved Version of the Perturb and Observe Algorithm for Photovoltaic Power Generation System." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/f9x7e2.

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碩士<br>國立中山大學<br>電機電力工程國際碩士學程<br>107<br>In this work, an improved version of the standard P&O MPPT algorithm for PV application with the name of IP&O MPPT algorithm is introduced, proposed and implemented. The new IP&O MPPT algorithm is modeled and then simulated using MATLAB/SIMULINK. The IP&O simulation results are compared with the simulation results of the standard P&O algorithm in different weather condition scenarios. The results prove that the IP&O algorithm to be more efficient, more effective and have a better performance in tracking the MPP during steady state conditions (STC), partia

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9

Tsai, Wen-jie, and 蔡文傑. "Implementation of Maximum Power Point Tracker with Regulated Perturb and Observe Algorithm for PV System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/38087497142074809561.

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碩士<br>國立中正大學<br>電機工程所<br>98<br>Recently, photovoltaic (PV) systems attract a lot of, in order to more effectively extract solar energy from PV array, the thesis proposes a regulated perturb and observe algorithm to realize maximum power point tracking of PV systems. This algorithm can improve disadvantages of constant perturbation step in perturb and observe algorithm, such as power loss and longer tracking time, by sensing conditions of PV array to adjust perturb step and perturb time, so that it can not only reduce the loss of perturbation around the maximum power point, but also increase th

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10

Hsu, Chun-Yen, and 徐峻彥. "An Adaptive PI Controlled Perturb and Observe Maximum Power Point Tracking Technique for Photovoltaic Generation Systems." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/62cp2b.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>107<br>The solar panel is becoming an increasingly popular form of renewable energy due to its decreasing installation costs and environmental friendliness. When the photovoltaic generation system (PGS) is installed in an area where the insolation changes rapidly, the maximum power point tracking (MPPT) technique is the key to make full use of the solar energy. This thesis implements the PI controlled perturb and observe (P&O) MPPT algorithm in order to solve the trade-off problem between the tracking speed and the steady state tracking accuracy of the traditional fi

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11

Chang, Yu-wei, and 張佑維. "Research on the Variable Step-Size Perturb and Observe Maximum Power Point Tracking Technology for a Photovoltaic System." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/r53rp5.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>99<br>Photovoltaic (PV) energy is one of the most important renewable energy sources since it is clean, free and inexhaustible. For the commercialization of PV energy, the reduction of the cost and size, and the improvement of conversion efficiency have become important concerns. The main reason for the low conversion efficiency of the PV modules are the non-linear voltage-current (V-I) characteristics, which depends on the solar insolation and panel temperature. In order to enhance the output power, a maximum power point tracking (MPPT) technique with quick response

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Chen, Yi-Hsuan, and 陳逸軒. "A Maximum Power Point Tracking Method Based on Multiple Perturb-and-Observe method for Overcoming Solar Partial Shade Problems." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/47784982221703275847.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>102<br>The characteristic curve of a solar cell depends on its voltage and the current relation, which is dependent on the insulation and the temperature change. Owning to different shading conditions, each solar cell has different voltage-current (V-I) characteristic curve exhibiting different maximum power point. Therefore, maximum power point tracking (MPPT) system must be developed for tracking the maximum power under different shading conditions. The power-voltage (P-V) characteristic curve has multiple peaks because of partially shading. This thesis proposes t

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13

Hsu, Yi-Chun, and 徐亦駿. "An Investigation of Maximum Power Point Tracking by Perturb and Observe Method for a Small-Scale Wind Power Generation System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/28751785012695938731.

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碩士<br>國立臺灣師範大學<br>機電科技研究所<br>99<br>The purpose of this thesis is to investigate the maximum power point tracker for a small-scale wind power generation system. Designing and applying the MPPT control rule in a power converter circuit, so that the tracker can track the maximum power point from DC output of the system. In this work, a DC power supply was connected with various loads getting different input power. Through the power conversion, the tracker can get the maximum power points. The tracking rule was based on Perturb and Observe Algorithm to capture the generator’s voltage and curre

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14

Παπαδάτος, Παναγής. "Ανάλυση και έλεγχος φωτοβολταϊκού συστήματος διασυνδεδεμένου στο δίκτυο". Thesis, 2014. http://hdl.handle.net/10889/8317.

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Αντικείμενο της παρούσας διπλωματικής είναι η ανάλυση και ο έλεγχος ενός φ/β συστήματος διασυνδεδεμένου στο δίκτυο, με στόχο να παρέχει μονίμως την μέγιστη ισχύ του και η άεργος ισχύς που εγχέεται στο δίκτυο να μηδενίζεται. Το φ/β σύστημα αποτελείται από μια φ/β συστοιχία, έναν πυκνωτή και έναν DC/AC αντιστροφέα (με το κύκλωμα ελέγχου του) με τον οποίο συνδέεται στο δίκτυο μέσω ενός RL φίλτρου. Στο κύκλωμα ελέγχου περιλαμβάνεται ο έλεγχος για την ανίχνευση του σημείου μέγιστης ισχύος (MPPT ελεγκτής) καθώς και όλοι οι PI ελεγκτές που είναι απαραίτητοι τόσο για τον έλεγχο της dc τάσης όσο και γι

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15

Oliveira, Pedro A. Duarte de. "Algoritmos GMPPT (Global Maximum Power Point Tracking) para aplicação em sistemas de produção de energia fotovoltaica." Master's thesis, 2021. http://hdl.handle.net/10400.26/37668.

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Os algoritmos de rastreamento do máximo ponto de potência global (GMPPT), são especialmente indicados para uso em sistemas de produção de energia fotovoltaica, quando os painéis fotovoltaicos ficam sujeitos a um efeito de sombreamento parcial numa string (conjunto de painéis fotovoltaicos ligados em série). As técnicas de rastreamento clássicas usadas para encontrar o ponto de máxima potência, poderão falhar em situações de sombreamento parcial, porque nestas condições irão existir múltiplos picos de potência e por conseguinte, não se garantir que se encontre o pico associado ao má

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16

Monteiro, Ana Isabel Teixeira. "Desenvolvimento e implementação de algoritmos de controlo para turbinas eólicas de baixo custo." Master's thesis, 2014. http://hdl.handle.net/10400.6/5612.

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O acesso à eletricidade é um requisito básico e indispensável para o desenvolvimento sustentável da humanidade e para o crescimento económico. Em zonas rurais e remotas o acesso à eletricidade ainda é uma irrealidade. O fato de existir um número reduzido de pessoas a habitar nestas zonas, e portanto, um baixo consumo de energia, torna complicada ou mesmo impraticável a utilização das tecnologias tradicionais de fornecimento de energia. Assim, a utilização de turbinas eólicas de pequenas dimensões pode ser uma solução prática para o fornecimento de energia, nestas zonas. Uma vez que é necessári

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17

Salve, Rima. "PV Based Converter with Integrated Battery Charger for DC Micro-Grid Applications." Thesis, 2014. http://hdl.handle.net/1805/6108.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>This thesis presents a converter topology for photovoltaic panels. This topology minimizes the number of switching devices used, thereby reducing power losses that arise from high frequency switching operations. The control strategy is implemented using a simple micro-controller that implements the proportional plus integral control. All the control loops are closed feedback loops hence minimizing error instantaneously and adjusting efficiently to system variations. The energy management between three components, namely, the photovol

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