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Дисертації з теми "PV BASED MICRO GRID"

Автор: Grafiati

Опубліковано: 11 вересня 2023

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1

Xu, Yize. "Reference model based power smoothing for stand-alone hybrid PV-diesel micro grid." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45654.

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Photovoltaic (PV) generator generates clean energy but also brings active power fluctuation to the network. The thesis investigates the frequency stability issue of a MW level stand-alone hybrid micro grid which contains PV generator, diesel generator, storage unit and loads. The PV generator can only generate as much power as the sun provides. The resulting power mismatch between PV generation and load demand needs to be compensated. The slow responding diesel generator is designed to compensate for the steady state power mismatch. The battery, as the fast responding storage unit, is set to r

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2

Tian, Feng. "SOLAR-BASED SINGLE-STAGE HIGH-EFFICIENCY GRID-CONNECTED INVERTER." Master's thesis, University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3503.

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Renewable energy source plays an important role in the energy cogeneration and distribution. Traditional solar-based inverter system is two stages in cascaded, which has a simpler controller but low efficiency. A new solar-based single-stage grid-connected inverter system can achieve higher efficiency by reducing the power semiconductor switching loss and output stable and synchronized sinusoid current into the utility grid. Controlled by the digital signal processor, the inverter can also draw maximum power from the solar array, thereby maximizing the utilization of the solar array. In Chapte

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3

Fuad, Syed Ahmed. "Consensus Based Distributed Control in Micro-Grid Clusters." Thesis, Michigan Technological University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10267526.

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<p> With the increasing trend of utilizing renewable energy generators such as photovoltaic (PV) cells and wind turbines, power systems are transforming from a centralized power grid structure to a cluster of smart micro-grids with more autonomous power sharing capabilities. Even though the decentralized control of power systems is a reliable and cost effective solution, due to the inherent heterogeneous nature of micro-grids, optimal and efficient power sharing among distributed generators (DG’s) is a major issue which calls for advanced control techniques for voltage stabilization of t

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4

Kronebrant, Mattias. "Cost comparison of solar home systems and PV micro-grid : The influence of inter-class diversity." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-33997.

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Nearly one fifth of the global population lacks access to electricity and electricity access is essential for economic growth and human well-being. SHSs and micro-grids both have the possibility of increasing the electricity access in developing countries. The decision to choose either SHSs or micro-grids for rural electrification is a complex task that must consider both the technological factors that separate these two systems and the non-technological factors. Separate times of peak load between households (inter-class diversity) has shown to be one major advantage for the use of micro-grid

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5

Gaptia, Maï Moussa Lawan. "Gestion optimale d'énergie électrique à partir des sources d'énergies renouvelables dédiées aux sites isolés Power control for decentralized energy production system based on the renewable energies — using battery to compensate the wind/load/PV power fluctuations Three level Neutral-Point-Clamped Inverter Control Strategy using SVPWM for Multi-Source System Applications Wind turbine and Batteries with Variable Speed Diesel Generator for Micro-grid Applications." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMLH28.

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Les travaux de thèse s’inscrivent dans les problématiques des travaux de recherche de l’équipe thématique : Maitrise des Energies Renouvelables et systèmes de Stockage (MERS) du laboratoire GREAH-EA3220. Ils englobent le dimensionnement des éléments constitutifs du système et la gestion optimale de l’énergie électrique pour un système hybride (Diesel à vitesse variable, Eolien, PV et Batteries) dédié aux sites isolés. Les sources de production d'énergie alimentent des charges par le biais de convertisseurs multi-niveaux d’électronique de puissance. Le groupe électrogène comportant un moteur di

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6

Løtveit, Marte Wiig. "System Design and Configuration of a Stand-Alone PV-Biomass Micro Grid : An Application for Wawashang, Nicaragua." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-27157.

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In this thesis, an evaluation of a stand-alone hybrid micro grid for the Wawashang Complex is presented. A solution for a new electricity supply and distribution system for the complex is proposed with a focus on optimal configuration of the system. A field trip to Wawashang was conducted in April 2014 in order to collect data regarding biomass potential for electricity production and information for a possible distribution system design. The demand to be covered is divided into two systems; the micro grid, which denotes all buildings excluding the carpentry workshop and is the system for whic

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7

Bastholm, Caroline. "Micro-grids supplied by renewable energy : Improving technical and social feasibility." Licentiate thesis, Uppsala universitet, Fasta tillståndets fysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-375499.

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Universal access to electricity stands high on the global agenda and is regarded as essential for positive development in sectors such as health care, education, poverty reduction, food production and climate change. Decentralized, off-grid electrification is deemed an important complement to centralized grid extension. By utilizing a renewable energy source, solar technology for the generation of electricity, photovoltaics (PV) is being considered as a way forward to minimize the environmental problems related to energy use. This thesis aims to contribute to improving the technical and social

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8

Saghaleini, Mahdi. "Switching Patterns and Steady-State Analysis of Grid-Connected and Stand-Alone Single-Stage Boost-Inverters for PV Applications." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/796.

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Renewable or sustainable energy (SE) sources have attracted the attention of many countries because the power generated is environmentally friendly, and the sources are not subject to the instability of price and availability. This dissertation presents new trends in the DC-AC converters (inverters) used in renewable energy sources, particularly for photovoltaic (PV) energy systems. A review of the existing technologies is performed for both single-phase and three-phase systems, and the pros and cons of the best candidates are investigated. In many modern energy conversion systems, a DC voltag

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9

Kumar, Shailendra. "Design, control and implementation of grid interactive solar PV array and battery energy storage based microgrids." Thesis, IIT Delhi, 2019. http://eprint.iitd.ac.in:80//handle/2074/8123.

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10

Alramlawi, Mansour [Verfasser], Georg Akademischer Betreuer] Frey, Peter [Akademischer Betreuer] [Bretschneider, and Pu [Gutachter] Li. "Model-based optimization of PV-based microgrids considering grid blackout and battery lifetime / Mansour Alramlawi ; Gutachter: Pu Li ; Georg Frey, Peter Bretschneider." Ilmenau : TU Ilmenau, 2021. http://d-nb.info/1239050178/34.

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11

Lu, Di. "Conception et contrôle d’un générateur PV actif à stockage intégré : application à l’agrégation de producteurs-consommateurs dans le cadre d’un micro réseau intelligent urbain." Thesis, Ecole centrale de Lille, 2010. http://www.theses.fr/2010ECLI0021/document.

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Анотація:

L’intégration de panneaux photovoltaïques dans un système électrique réduit la consommation des sources fossiles et apporte des avantages environnementaux. Toutefois, l'intermittence et les fluctuations de puissance détériorent la qualité d’alimentation électrique. La solution proposée est d’ajouter des éléments de stockage, coordonnés par un contrôleur local qui gère les flux de puissance entre toutes les sources et la disponibilité énergétique. Ce générateur actif PV peut générer des références de puissance et fournir des services « système » au réseau électrique. Puis les concepts liés au m

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12

Halawani, Mohanad. "An iterative analytical design framework for the optimal designing of an off-grid renewable energy based hybrid smart micro-grid : a case study in a remote area - Jordan." Thesis, Abertay University, 2015. https://rke.abertay.ac.uk/en/studentTheses/40b75bc8-d237-4aaf-9668-797739f49f74.

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Creative ways of utilising renewable energy sources in electricity generation especially in remote areas and particularly in countries depending on imported energy, while increasing energy security and reducing cost of such isolated off-grid systems, is becoming an urgently needed necessity for the effective strategic planning of Energy Systems. The aim of this research project was to design and implement a new decision support framework for the optimal design of hybrid micro grids considering different types of different technologies, where the design objective is to minimize the total cost o

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13

Bouneb, Bourbia. "Feasibility and economic study of a grid connected fuel cell/battery based micro-CHP system for residential application." Thesis, University of Strathclyde, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.510676.

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14

Tu, Tu. "The rise of renewable energy and battery storage based micro-grids: challenges in techno-economic balance and infrastructural transition, modeled with a real-world case-study." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/22969.

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The utilization of renewable energy systems and battery storage is a promising solution for remote area electrification. In particular, the integration of renewable energy systems and battery storage units are commonly used to establish discrete electricity generation and stand-alone micro-grids, due to their commercial availability and well-studied electrical behaviour. However, being a highly feasible solution for micro-grid planning, the underlying challenging to find the optimal balance between economics and amenity is often overlooked. The work presented in this thesis aims to use real-wo

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15

Dias, Ricardo Machado. "Instalação de uma microrrede fotovoltaica conectada/isolada com estocagem e monitoramento com controle da carga alimentada." Universidade do Vale do Rio dos Sinos, 2015. http://www.repositorio.jesuita.org.br/handle/UNISINOS/4957.

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Submitted by Silvana Teresinha Dornelles Studzinski (sstudzinski) on 2015-11-23T18:36:57Z No. of bitstreams: 1 Ricardo Machado Dias_.pdf: 9738672 bytes, checksum: 93b61d762b320f8c388034ac9d4ea82c (MD5)<br>Made available in DSpace on 2015-11-23T18:36:57Z (GMT). No. of bitstreams: 1 Ricardo Machado Dias_.pdf: 9738672 bytes, checksum: 93b61d762b320f8c388034ac9d4ea82c (MD5) Previous issue date: 2015-06-19<br>CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>PROSUP - Programa de Suporte à Pós-Gradução de Instituições de Ensino Particulares<br>Este trabalho trata do desenv

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16

Bartel, Kyle. "Allocating Optimal Grid-Connected Solar Photovoltaic Power Plant Sites : GIS-Based Multi-Criteria Modeling of Solar PV Site Selection in the Southern Thompson-Okanagan Region, British Columbia, Canada." Thesis, Högskolan i Gävle, Akademin för teknik och miljö, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-15859.

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Fossil fuels and non-renewable resources are being replaced with, as modern day society has coined the term, green energy. This movement towards green energy creates a demand for renewable energy resources, such as solar photovoltaic (PV) systems. This study used Geographic Information Systems (GIS) in conjunction with Remote Sensing (RS) practices and two weighting systems the Analytical Hierarchy Process (AHP) and Rank-Order methods for PV site selection. Six multi-criteria models were developed using spatial factors and constraining images to locate potential photovoltaic power plant sites

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17

Flygare, Carl. "A market-based instrument for renewable energy : Modelling a dynamic price function for local areas." Thesis, Uppsala universitet, Institutionen för samhällsbyggnad och industriell teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-403002.

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This thesis describes the current situation of the electrical grid on a general level and contemporary support policies for residents who feed renewably produced electricity into the grid within a Swedish context. It shows which issues currently exists and suggests a new way to value overproduced renewable electricity which is not self-consumed. This way is called a dynamic price function (DPF), and this thesis models, simulates and analyzes the DPF in order to create an economic incentive to support the balance of the electrical grid – one of its most important parameters. The suggested DPF c

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18

Alexandru, Mihai. "Efficient large electromagnetic simulation based on hybrid TLM and modal approach on grid computing and supercomputer." Phd thesis, Institut National Polytechnique de Toulouse - INPT, 2012. http://tel.archives-ouvertes.fr/tel-00797061.

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Dans le contexte des Sciences de l'Information et de la Technologie, un des challenges est de créer des systèmes de plus en plus petits embarquant de plus en plus d'intelligence au niveau matériel et logiciel avec des architectures communicantes de plus en plus complexes. Ceci nécessite des méthodologies robustes de conception afin de réduire le cycle de développement et la phase de prototypage. Ainsi, la conception et l'optimisation de la couche physique de communication est primordiale. La complexité de ces systèmes rend difficile leur optimisation notamment à cause de l'explosion du nombre

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19

Wang, Dian. "Microgrid based on photovoltaic energy for charging electric vehicle stations : charging and discharging management strategies in communication with the smart grid." Thesis, Compiègne, 2021. http://www.theses.fr/2021COMP2584.

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Le développement rapide des véhicules électriques (EVs) augmente la demande de puissance, ce qui provoque une charge supplémentaire sur le réseau public et augmente les fluctuations de la charge. Par conséquent, la forte pénétration des EVs est freinée. Un algorithme simulé en temps réel et basé sur des règles est élaboré pour les bornes de recharge des EVs alimentées par un micro-réseau DC afin de faire face aux incertitudes du comportement des utilisateurs des EVs. L'algorithme prend en considération les choix arbitraires et aléatoires proposés via l'interface homme-machine. Les résultats de

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20

Sencu, Razvan. "Multiscale stochastic fracture mechanics of composites informed by in-situ X-ray CT tests." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/multiscale-stochastic-fracture-mechanics-of-composites-informed-by-insitu-xray-ct-tests(85a0be40-9e7a-4df3-a366-69ac6ce02e35).html.

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This thesis presents the development of a new multiscale stochastic fracture mechanics modelling framework informed by in-situ X-ray Computed Tomography (X-ray CT) tests, which can be used to enhance the quality of new designs and prognosis practices for fibre reinforced composites. To reduce the empiricism and conservatism of existing methods, this PhD research systematically has tackled several challenging tasks including: (i) extension of the cohesive interface crack model to multi-phase composites in both 2D and 3D, (ii) development of a new in-house loading rig to support in-situ X-ray CT

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21

Duffy, Michael James. "Small wind turbines mounted to existing structures." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34765.

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Small wind turbines, and especially urban-mounted turbines which require no dedicated pole, have garnered great public enthusiasm in recent years. This enthusiasm has fueled widespread growth among energy conservationists, and estimates predict that the power produced nationally by small wind will increase thirty-fold by 2013. Unfortunately, most of the wind resources currently available have been designed for larger, rural-mounted turbines; thus, they are not well suited for this nascent market. A consequence of this is that many potential urban small wind turbine owners over-predict their l

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22

GUPTA, NIKITA. "MODELLING, DESIGN AND DEVELOPMENT OF PV BASED MICROGRID." Thesis, 2018. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16491.

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In recent years, with the exhaustion of fossil fuels and increasing public awareness about the use of green energy, the renewable energy has gained popularity and is emerging as an important source of energy. Also, the electrical power grid is on the threshold of a paradigm shift from centralized power generation, transmission and massive electric grids to distributed generation (DG). DG basically uses small-scale generators, like photovoltaic (PV) panels, wind turbine, fuel cells, small and micro hydropower, diesel generator set, etc., and is confined to small distribution networks to produce

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23

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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24

Wang, Yi-Hung, and 王譯鴻. "Energy Co-sharing Control of Micro-hybrid Solar PV Grid." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/72234159131565892895.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>103<br>A networking technique for solar PV power co-sharing in a micro-grid composed of several hybrid solar PV systems (HyPVs) with limited battery storage, called “HyPV-net”, was developed. A power switching control was used to distribute the solar PV power between individual HyPVs. Excess solar PV power in an individual HyPV at low load power consumption will be transmitted to its neighbor HyPV through a central control unit (CCU) via ac power line. This will increase the PV power generation of the grid and improve the economy of the system. A long-term system p

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25

SUKESH, NIKHIL. "Single Stage Grid-Connected Micro-Inverter for Photovoltaic Systems." Thesis, 2012. http://hdl.handle.net/1974/7317.

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This thesis presents a novel Zero Voltage Switching (ZVS) approach in a grid connected single-stage flyback inverter without using any additional auxiliary circuits. The soft-switching of the primary switch is achieved by allowing negative current from the grid-side through bidirectional switches placed on the secondary side of the transformer. Basically, the negative current discharges the MOSFET’s output capacitor thereby allowing turn-on of the primary switch under zero voltage. In order to optimize the amount of reactive current required to achieve ZVS a variable frequency control scheme i

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26

Jhou, Pin-Hong, and 周品宏. "A WIND SWITCHED-RELUCTANCE GENERATOR BASED GRID-CONNECTED MICRO-GRID." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/9czm96.

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碩士<br>國立清華大學<br>電機工程學系所<br>105<br>This thesis develops a switched-reluctance generator (SRG) based DC microgrid with hybrid storage, energy harvesting and grid-connected capability. The microgrid DC bus voltage is established by the wind SRG via an interleaved boost DC/DC converter. The hybrid energy storage system consists of a SRM driven flywheel, a lead-acid battery bank and a super-capacitor. While the super-capacitor bank is directly connected across the SRG output, the battery and the flywheel are respectively interfaced to the common DC bus via its bidirectional DC/DC converter. Satisfa

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27

Chang, Hung-Cheng, and 張宏誠. "Design and Implementation of a DSP Based Grid-Connected PV Inverter." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/02849305094757894673.

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碩士<br>中原大學<br>電機工程研究所<br>101<br>Abstract In the thesis, we use digital signal processor (DSP) as the control core and build the protection feature of international regulations and grid-connected regulations to design a grid-connected 3000 watt photovoltaic (PV) inverter. First, we introduce the grid-connected photovoltaic (PV) inverter block diagram and explain all functions on the digital signal processor (DSP) TSM320F2808 control system to achieve a system configuration and interface. Secondly, we introduce a photovoltaic (PV) inverter power stage structure, and combine zero crossing detecti

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28

Chellal, Majd. "Experimental evaluation of Kalman filter based MPPT in grid-connected PV system." Master's thesis, 2022. http://hdl.handle.net/10198/25144.

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Mestrado de dupla diplomação com a Ecóle Supérieur en Sciences Apliquées<br>Photovoltaic (PV) energy is becoming an important alternative energy source, since it is abundant in nature, non-polluting and requires low maintenance. However, it suffers from low energy conversion efficiency, which can be even lower if the photovoltaic generator does not operate around a so-called Maximum Power Point (MPP). Tracking this point, which changes its location depending on weather conditions, is a very important step in the design of a photovoltaic system. Several techniques have been investigated in

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Hussain, Ikhlaq. "Investigations on high power converters based grid interfaced solar pv power generating systems." Thesis, 2018. http://localhost:8080/xmlui/handle/12345678/7668.

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Reddy, Sadhu ReddySekhar. "Grid Synchronisation of IVS based MPPT PV Array Using Damped SOGI Control Algorithm." Thesis, 2018. http://ethesis.nitrkl.ac.in/9716/1/2018_MT_216EE4307_SReddy_Grid.pdf.

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This project consists of two parts in first part detail about modified perturb & observe & input voltage sensor (IVS) algorithms,second part is about two stage grid integration of PV panel using damped second order generalised integrator (SOGI) algorithm.Conventional perturb & observe MPPT algorithm use PV panel voltage and current to vary duty ratio dc-dc converter such that maximum power is extracted from PV panel.IVS based algorithm PV panel voltage alone to track maximum power point of PV panel.These two algorithms are simulated using MATLAB/Simulink for rating of PV panel in laboratory.

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31

Zhang, Wen-Chao, and 張文超. "Micro-Grid Converter Control Strategy Design Based on Virtual Synchronous Generators." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/8n4mns.

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碩士<br>國立中央大學<br>電機工程學系<br>105<br>In this paper, the converter is used to simulate the synchronous generators. In island mode, converter can meet load requirements and provide stable voltage and frequency support .In grid-connected mode, converter can output request active power or reactive power. The control strategy of the virtual synchronous generators (VSG) is making distributed power supply operate safely and stably. The virtual synchronous generators are need to realize seamless transform between the island mode and grid-connected mode .This paper use a pre-synchronous method of VSG based

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32

Dash, Prajna Paramita. "A High-Performance Three-Phase Grid-Connected PV System Based On Multilevel Current Source Inverter." Thesis, 2013. http://hdl.handle.net/10012/7356.

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Current Source Inverter (CSI) topology is gaining acceptance as a competitive alternative for grid interface of renewable energy systems due to its unique and advantageous features. Merits of CSI over the more popular Voltage Source Inverter (VSI) topology have been elaborated on by a number of researchers. However, there is a dearth of quality work in modeling and control of CSI topology interfacing renewable energy resources to the grid. To enrich the study focussing on application of CSI for renewable energy interface, this thesis develops a multilevel structure based on CSI for three-phas

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Deepak, G. "Integrated Magnetics Based DC-DC Converter Topologies For A DC Micro-Grid." Thesis, 2012. https://etd.iisc.ac.in/handle/2005/2310.

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In the present day, owing to the increasing number of electronic loads such as computer power supplies, Compact fluorescent lamps (CFL) and the increasing number of sources such as solar photovoltaics, fuel cells (DC sources), DC Micro-grids provide a more efficient solution compared to the AC counterpart in terms of the number of stages involved in conversion. Also, the ability to be readily buffered to storage elements is an advantage in a DC system. Apart from this, there are no issues of frequency stability, reactive power transfer and ac power losses. A DC micro-grid is effectively a mul

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Deepak, G. "Integrated Magnetics Based DC-DC Converter Topologies For A DC Micro-Grid." Thesis, 2012. http://etd.iisc.ernet.in/handle/2005/2310.

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In the present day, owing to the increasing number of electronic loads such as computer power supplies, Compact fluorescent lamps (CFL) and the increasing number of sources such as solar photovoltaics, fuel cells (DC sources), DC Micro-grids provide a more efficient solution compared to the AC counterpart in terms of the number of stages involved in conversion. Also, the ability to be readily buffered to storage elements is an advantage in a DC system. Apart from this, there are no issues of frequency stability, reactive power transfer and ac power losses. A DC micro-grid is effectively a mult

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MWAKITALIMA, ISAKA J. "TECHNO-ECONOMIC ANALYSIS OF RENEWABLE ENERGY BASED MICRO GRID FOR RURAL APPLICATIONS." Thesis, 2022. http://dspace.dtu.ac.in:8080/jspui/handle/repository/19711.

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The need for power supply from the main grid is rising drastically as the investment in economic activities and population grow rapidly, as does the improvement of comfort level and power consumption required by contemporary home appliances. Global warming and greenhouse gas (GHG) emissions have negative impacts due to the use of fossil fuel power plants. These are the main challenges which have given pressure in using sustainable and renewable energy resources (SRES) for power generation. Moreover, the world's energy sector is confronted with growing issues as a result of increase

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Ojurongbe, Oluwademilade Moyosore. "Localising the smart grid based on a South African context: A user centred approach to the micro-grid." Thesis, 2015. http://hdl.handle.net/10539/17538.

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Implementing a smarter grid for improved management and use of power is extremely important for the future and development of South Africa. Even more important is nding the best way to implement these grids in South Africa. A number of evolutions are expected, but ultimately the eventual solution will need to satisfy the requirements of the grid, while adhering to the relevant standards to result in a suitable solution for South Africa. It can therefore not be assumed that a solution which works successfully in another country will have the same results in South Africa. The economy, n

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Liu, Ming-Chang, and 劉銘昌. "Development of Dispatch and Control System for Renewable Energy Generation Based Micro Grid." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/15095678851922214591.

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碩士<br>國立勤益科技大學<br>電機工程系<br>99<br>Under the circumstances of petroleum resources in dwindling and the trend of consciousness of environmental protection rising up, clean, non-contaminated and inexhaustible energy source is in urgent need. Thus, the development and application of the renewable energy become one of the most important studies that every country is engaging in as well as putting it the primary energy policy in consideration in recently years. The integration of renewable energy into an independent power system shall be populated in the near future. For this, the main purpose of the

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Shafiei, Arash. "Modeling, Analysis, and Design of a PV-Based Grid-Tied Plug-In Hybrid Electric Vehicle Battery Pack Charger." Thesis, 2013. http://spectrum.library.concordia.ca/977857/1/ARASH_SHAFIEI_Master's_Thesis_Final_Edition.pdf.

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Ever-increasing fossil fuels consumption in recent decades has emitted tremendous amounts of greenhouse gases, a big part of which cannot be absorbed by natural processes happening in nature. These gases have increased earth temperature by absorbing extra radiations from sunlight and turning them into heat. Global warming has had terrible effects for all creatures around the world and can threat life on Earth in future. Utilization of green or renewable energies during the recent years is getting more popular and can be a solution to this serious problem. A big source of these pollutants is tr

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Jian, Lu Shih, and 簡盧世. "DEVELOPMENT OF PLUG-IN ENERGY SUPPORT SYSTEMS FOR WIND SRG-BASED DC MICRO-GRID." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/62145479709714988532.

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碩士<br>國立清華大學<br>電機工程學系<br>104<br>This thesis develops the plug-in energy support systems for a wind switched- reluctance generator (SRG) based DC micro-grid. The auxiliary energy support from the accessible AC or DC sources can be achieved as the energy deficiencies of wind source and storage devices occur. First, an available wind SRG based micro-grid is redesigned and employed as the studied platform. It is equipped with a hybrid energy storage system consisting of a flywheel, a lead-acid battery bank and a super-capacitor bank. The common DC bus voltage of micro-grid is established by the S

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Lin, Tsai-Sheng, and 林才勝. "A WIND SWITCHED-RELUCTANCE GENERATOR BASED DC MICRO-GRID WITH HYBRID ENERGY STORAGE SYSTEM AND PLUG-IN AUXILIARY ENERGY SUPPORT FROM UTILITY GRID." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/34428889437302891663.

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碩士<br>國立清華大學<br>電機工程學系<br>102<br>In this thesis, a switched-reluctance generator (SRG) based DC micro-grid is established. It is equipped with a hybrid energy storage system composed of a flywheel and a lead-acid battery bank. The plug-in energy support through SRG power circuit from the utility grid is also implemented. The developed SRG is interfaced to the micro-grid common DC bus via an interleaved boost DC/DC converter. Well regulated DC bus voltage is obtained under varying shaft driving speeds and load conditions by properly treating the related key issues, such as power circuit design,

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Lu, Lin-Yu, and 呂臨佑. "DEVELOPMENT OF A SWITCHED-RELUCTANCE GENERATOR BASED DC MICRO-GRID WITH ISOLATED CONVERTERS AND PLUG-IN CHARGER." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/48739484098148064257.

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碩士<br>國立清華大學<br>電機工程學系<br>99<br>This thesis presents the development of an experimental common DC-bus micro-grid system with a wind-driven switched-reluctance generator (SRG) as distributed generation source. In the establishment of SRG system, its power circuit and control scheme are first properly designed considering the alleviation of DC-link voltage ripples effects caused by commutation and switching. Moreover, the simple robust control is applied to yield improved DC output voltage regulation characteristics under varying prime mover driving speed. Then the operating performance is furth

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Chou, Ko-Fu, and 周科甫. "A wind driven switched-reluctance generator based DC micro-grid supported by energy storages of battery and flywheel." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/99626168714637922946.

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碩士<br>國立清華大學<br>電機工程學系<br>100<br>This thesis develops a wind switched-reluctance generator (SRG) based DC micro-grid with battery energy storage buffer and three-phase load inverter. In the developed SRG, its power circuit is properly designed, and the hysteresis current-controlled PWM switching is applied to enhance the winding current control robustness against the adverse effects of back electromotive force. Then good generating performance under varying wind speed and load is achieved via proper voltage command setting, robust control and commutation shift. The SRG generated speed-dependen

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Wang, Jung-Chi, and 王榮崎. "A WIND SWITCHED-RELUCTANCE GENERATOR BASED DC MICRO-GRID WITH INTERLEAVING INTERFACE CONVERTER AND MULTIPLE ENERGY STORAGE DEVICES." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/64629705829209389693.

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碩士<br>國立清華大學<br>電機工程學系<br>101<br>his thesis develops a wind switched-reluctance generator (SRG) based DC micro-grid, it is equipped with a three-phase load inverter and a hybrid energy storage system consisting of a lead-acid battery and a flywheel. The established SRG is interfaced to micro-grid common DC bus via an interleaving current-fed push-pull (CFPP) DC/DC converter formed using two cells. Well regulated DC bus voltage is obtained under varying shaft driving speeds and load levels through properly treating the key issues, such as power circuit design, robust voltage and current control

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Bhattacharya, Tanmoy. "Battery Buffered Stiff Micro Grid Structure For A Variable Speed Slip Ring Induction Machine Based Wind Generation System." Thesis, 2009. https://etd.iisc.ac.in/handle/2005/678.

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Electric power has become a basic necessity of human life. The major share of electric power comes from fossil fuel which results in global warming and pollution. A share of generated power comes from nuclear power which is equally dangerous. Big hydro projects take away lots of fertile land. The continuous usage of fossil fuel also poses a threat of petroleum and coal getting over in the near future. The only way out of this energy scarcity is to depend more and more on renewable sources like solar, wind and micro-hydro. At present, instead of having preference over any particular source of r

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Bhattacharya, Tanmoy. "Battery Buffered Stiff Micro Grid Structure For A Variable Speed Slip Ring Induction Machine Based Wind Generation System." Thesis, 2009. http://hdl.handle.net/2005/678.

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Анотація:

Electric power has become a basic necessity of human life. The major share of electric power comes from fossil fuel which results in global warming and pollution. A share of generated power comes from nuclear power which is equally dangerous. Big hydro projects take away lots of fertile land. The continuous usage of fossil fuel also poses a threat of petroleum and coal getting over in the near future. The only way out of this energy scarcity is to depend more and more on renewable sources like solar, wind and micro-hydro. At present, instead of having preference over any particular source of r

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Hu, Kai Wei, and 胡凱維. "DEVELOPMENT AND OPERATION CONTROL OF A WIND PERMANENT-MAGNET SYNCHRONOUS GENERATOR BASED DC MICRO-GRID WITH HYBRID ENERGY STORAGE." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/66455357797359965766.

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博士<br>國立清華大學<br>電機工程學系<br>103<br>This dissertation is aimed at the development and operation controls of a DC micro-grid powered by wind permanent-magnet synchronous generator (PMSG) and DC source with hybrid energy storage devices. The DC sources are interfaced to the common DC bus via an interleaved DC/DC boost converter. As to the wind PMSG, after exploring the derated characteristics of PMSG systems with various AC/DC converters, a three-phase Vienna switch-mode rectifier (SMR) is developed as its interface to establish the common DC bus voltage of DC micro-grid. Its developed power is imp

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CHANG, YU-CHENG, and 張育誠. "Effects of Integrating the Concept map-based Global view and Knowledge Grid-based Micro view into a Ubiquitous Peer-Assessment model on Students' Learning Performances in Natural Science Courses." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/42z3z2.

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碩士<br>東吳大學<br>資訊管理學系<br>104<br>In recent years, researchers have indicated that using Mindtools as mobile learning strategies is effective for improving students’ learning achievement. Researchers have further identified that learning in an authentic environment with quality knowledge constructional supports can engage students in thorough observations and knowledge construction. Grid-based knowledge constructional tools such as repertory grid enables students to compare the characteristics and its value of learning targets in Natural Science course. Although researchers have identified the ef

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