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Dissertations / Theses on the topic 'Active and reactive power responses'

Author: Grafiati
Published: 11 December 2022
Last updated: 31 July 2025

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1

Levon, Elena. "Multi-loop Control Systems of Compensators for Powerful Sounding Pulses Generators." Thesis, Institute of Electrical and Electronics Engineers, 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/44052.

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Construction principles of multi-loop control systems of compensators for powerful sounding pulses generators are presented. A method for controlling a compensating system using fuzzy logic and forecast control ideas is described. Proposed compensating system is able to solve different problems: reactive power compensation, harmonic elimination. The system is based on a combination of a thyristor compensator and an active power filter. Some practical results with Matlab-Simulink are presented to check the proposed control performance.
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2

Mohseni, Mansour. "Enhanced control of DFIG-based wind power plants to comply with the international grid codes." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/1878.

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A review of the latest international grid codes shows that large wind power plants are stipulated to not only ride-through various fault conditions, but also exhibit adequate active and reactive power responses during the fault period in order to support the network stability. In particular, modern grid codes require wind power plants to: (1) ride-through various voltage sag and swell conditions, (2) inject reactive current into the grid during the fault period, and (3) attain swift active power restoration after the fault clearance. This thesis proposes a transient control scheme for DFIG-bas
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3

Zubo, Rana H. A. "Distribution Network Operation with High Penetration of Renewable Energy Sources. Joint Active/Reactive Power Procurement: A Market-Based Approach for Operation of Distribution Network." Thesis, University of Bradford, 2019. http://hdl.handle.net/10454/18267.

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Distributed generators (DGs) are proposed as a possible solution to supply economic and reliable electricity to customers. It is adapted to overcome the challenges that are characterized by centralized generation such as transmission and distribution losses, high cost of fossil fuels and environmental damage. This work presents the basic principles of integrating renewable DGs in low voltage distribution networks and particularly focuses on the operation of DG installations and their impacts on active and reactive power. In this thesis, a novel technique that applies the stochast
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4

Li, Ruomei. "Modelling of active filters for improving power quality." Thesis, University of Bath, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323585.

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5

Quint, Ryan David. "Response-Based Synchrophasor Controls for Power Systems." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/50576.

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The electric power grid is operated with exceptionally high levels of reliability, yet recent large-scale outages have highlighted areas for improvement in operation, control, and planning of power systems.  Synchrophasor technology may be able to address these concerns, and Phasor Measurement Units (PMUs) are actively being deployed across the Western Interconnection and North America.  Initiatives such as the Western Interconnection Synchrophasor Program (WISP) are making significant investments PMUs with the expectation that wide-area, synchronized, high-resolution measurements will improve
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6

Toreid, Eivind. "Active Control of Reactive Power in a Modern Electrical Rail Vehicle." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13863.

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Modern electrical rail vehicles employ four-quadrant voltage source converters, which allow independent control of real and reactive power. This thesis focuses the control of reactive power at the vehicle regarding load flow and stability.Settings for power factor as a function of voltage were proposed in a project fall 2010, aiming to reduce line loss and increase transmission capacity. This thesis is mainly a further investigation of some of the settings proposed.One of the proposed settings for controlling reactive power is found to reduce the load of a rotary converter station in the range
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7

Raju, N. Ravisekhar. "A decoupled converter topology for active compensation of power systems /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/5847.

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8

Spro, Ole Christian B. "Reactive Power Compensation and Active Filtering Capabilities of the Step-down AC Chopper." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23617.

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The Step-down AC Chopper (hereby referenced as "AC Chopper") has been presented in recent academic papers as a possible solution for reactive compensation. The goal of this project was to investigate and evaluate the topology to see if the praise could be justified. In addition, this project set a goal to take the research one step further by investigating if the uses of the AC Chopper could be expanded to include active filtering. The ability of the AC Chopper converter to produce harmonic current was investigated. This was the first step in developing the AC Chopper's active f
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9

Park, Sung Yeul. "A Wide Range and Precise Active and Reactive Power Flow Controller for Fuel Cell Power Conditioning Systems." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/28645.

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This dissertation aims to present a detailed analysis of the grid voltage disturbance in frequency domain for the current control design in the grid-tie inverter applications and to propose current control techniques in order to minimize its impact and maximize feasibility of the power conditioning system in distributed generations. Because the grid voltage is constantly changing, the inverter must be able to response to it. If the inverter is unable to respond properly, then the grid voltage power comes back to the system and damages the fuel cell power conditioning systems. A closed-loop dy
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10

Boulanger, Isabelle. "Lillgrund Wind Farm Modelling and Reactive Power Control." Thesis, KTH, Elektriska energisystem, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-119256.

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The installation of wind power plant has significantly increased since several years due to the recent necessity of creating renewable and clean energy sources. Before the accomplishment of a wind power project many pre-studies are required in order to verify the possibility of integrating a wind power plant in the electrical network. The creation of models in different software and their simulation can bring the insurance of a secure operation that meets the numerous requirements imposed by the electrical system. Hence, this Master thesis work consists in the creation of a wind turbine model.
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11

Maroufi, Seyede Masoome. "Optimization of active and reactive power in smart buildings using a distributed model predictive control." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Growth in Distributed Energy Resources (DERs) and low-inertia renewable energy sources in smart grids require imperative Volt-VAR Control (VVC). Moreover, this growth combined with increasing deployment of information technologies in smart grids fuels communication uncertainties and reveals transient stability challenges for Distributed Network Operators (DNOs). Innovative approaches have been proposed to use the inherent thermal inertia of buildings to provide ancillary services to the grid to tackle the problems posed by the increasing trend of volatile DERs. Although numerous approaches har
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12

Sansawatt, Thipnatee Punim. "Adaptive control for active distribution networks." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/6268.

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Rise of the global environmental awareness and climate change impacts caused by greenhouse gases emissions brings about a revolution in the power and energy industries to reduce fossil fuels and promote low-carbon and renewable distributed generation (DG). The new dimensions, mainly encouraged by the governments’ legislative targets and incentives, have allowed the development of DG worldwide. In the U.K., renewable DG especially wind is being connected on distribution networks and ranges widely in scales. Despite the growing number of potential DG sites, the surplus generation present on the
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13

Prasai, Anish. "Direct dynamic control of impedance for VAR and harmonic compensation." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42816.

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Reactive power is critical to reliable operation of the modern AC power system. There is a plethora of motor-loads, transformers, and power-electronic loads connected to the power grid, which consume reactive power for normal operation. Transmission lines also consume reactive power when they are loaded above their surge impedance loading (SIL). Reactive power can exact opportunity cost due to reduced capacity of the lines to carry real power, which in turn lowers revenue. Most transmission owners (TOs) levy large penalties against load serving entities (LSEs), industrial facilities, and o
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14

Marvar, Paul J. "Effect of high salt intake on arteriolar responses to metabolic stimuli." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4696.

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Thesis (Ph. D.)--West Virginia University, 2006.<br>Title from document title page. Document formatted into pages; contains xiv, 197 p. : ill. Vita. Includes abstract. Includes bibliographical references.
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15

Haryani, Nidhi. "Zero Voltage Switching (ZVS) Turn-on Triangular Current Mode (TCM) Control for AC/DC and DC/AC Converters." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/96397.

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One of the greatest technological challenges of the world today is reducing the size and weight of the existing products to make them portable. Specifically, in electric vehicles such as electric cars, UAVs and aero planes, the size of battery chargers and inverters needs to be reduced so as to make space for more parts in these vehicles. Electromagnetic Interference (EMI) filters take up a more than 80 % of these power converters, the size of these filters can be reduced by pushing the switching frequency higher. High frequency operation (> 300 kHz) leads to a size in reduction of EMI filters
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16

Lowinsky, Luc Anthony. "Nouvelle topologie de Compensateur de Puissance Réactive pour les Réseaux Ferrés 25 kV / 50 Hz." Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0036/document.

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Le travail présenté dans ce mémoire s’est déroulé dans le cadre d’une collaboration entre le groupe Convertisseur Statique du laboratoire LAPLACE et le département " Installations Fixes de Traction Electrique " de la Direction de l’Ingénierie de la SNCF. Aujourd'hui, la majorité du trafic sur le réseau ferré monophasé 25 kV / 50 Hz est assurée par des locomotives équipées de redresseurs contrôlés à thyristors. Du fait de l'augmentation du trafic, l'utilisation de ces locomotives nécessite la mise en place de moyen de compensation de puissance réactive afin de maintenir la tension caténaire à u
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17

Spies, Andries Theodorus. "An investigation into the grid compliance of the slip synchronous permanent magnet wind generator." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80075.

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Thesis (MScEng)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: The slip synchronous permanent magnet generator (SSG) is a direct-driven direct-grid connected generator developed to alleviate the need for expensive gearboxes and solid-state power converters on wind turbine generators. This study identifies certain key areas where the current wind turbine generator (WTG) system does not comply with the grid code for wind energy facilities (WEF) as specified by the National Energy Regulator of South Africa. The current WTG system does not have a reactive power compensation device. The main
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18

Харевич, Віктор Ігорович, та Viktor Harevych. "Використання нерегульованих конденсаторних батарей в мережах 10 кВ". Master's thesis, Тернопільський національний технічний університет імені Івана Пулюя, кафедра електричної інженерії,Тернопіль, Україна, 2021. http://elartu.tntu.edu.ua/handle/lib/36658.

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Розвиток сучасної енергетики ґрунтується на поліпшенні технічних і економічних параметрів силового обладнання, підвищення їх надійності, рівня автоматизації та пропускної спроможності лінії електропередачі при постійному підвищенні якості електричної енергії і, відповідно, зменшенням втрат. Одним із найважливіших на сьогоднішній день питань при зростанні споживаної потужності залишається проблема зниження втрат та підвищення пропускної здатності, що в свою чергу вимагає розробки заходів щодо оптимізації параметрів режиму мережі з відповідним їх технічним і економічним обґрунтуванням. Зазначен
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19

Hemmerlin-Kohler, Sophie. "Estimation et agrégation des puissances actives et réactives absorbées par les charges consommatrices d'un réseau en régime perturbé." Grenoble INPG, 1993. https://hal.archives-ouvertes.fr/tel-02010571.

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Les réseaux électriques sont des systèmes complexes dont l'étude requiert l'utilisation de moyens de simulation numérique importants. Certains régimes perturbés tels que ceux qui précèdent et succèdent à un écoulement de tension, sont fortement conditionnés par le comportement des charges consommatrices. Si la modélisation des composants du réseau, est devenue assez précise, il n'en est pas encore de même pour des charges, vues comme des ensembles agrégés. L'étude a consisté à établir les modèles élémentaires de diverses charges rentrées couramment dans les réseaux, ainsi que les modèles de le
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20

Badran, Ahmad. "Integrating Wind Power into The Electric Grid : Predictive Current Control Implementation." Thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-99640.

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The increasing penetration of wind power into the power system dominated by variable-speed wind turbines among the installed wind turbines will require further development of control methods. Power electronic converters are widely used to improve power quality in conjunction with the integration of variable speed wind turbines into the grid. In this thesis, a detailed model of the Predictive Current Control (PCC) method will be descripts for the purpose of control of the grid-connected converter. The injected active and reactive power to the grid will be controlled to track their reference val
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21

Louganski, Konstantin. "Generalized Average-Current-Mode Control of Single-Phase AC-DC Boost Converters with Power Factor Correction." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/27331.

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The dissertation presents a generalized average-current-mode control technique (GACMC), which is an extension of the average-current-mode control (ACMC) for single-phase ac-dc boost converters with power factor correction (PFC). Traditional ACMC is generalized in a sense that it offers improved performance in the form of significant reduction of the current control loop bandwidth requirement for a given line frequency in unidirectional and bidirectional boost PFC converters, and additional functionality in the form of reactive power control capability in bidirectional converters. These feature
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22

Castro, Júnior Wanderley Araújo de. "Avaliação de aspectos da instalação de geração distribuída fotovoltaica em unidades sujeitas a cobrança de reativos no Brasil /." Ilha Solteira, 2020. http://hdl.handle.net/11449/191352.

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Orientador: Júlio Borges de Souza<br>Resumo: Este trabalho apresenta uma avaliação dos aspectos da instalação de sistemas de geração distribuída fotovoltaica (GDFV) em unidades consumidoras sujeitas à cobrança de reativos no Brasil. A avaliação dos possíveis impactos técnicos e financeiro é realizada sob o alicerce da legislação e normativas aplicáveis. São abordados os modos de medição, sistema tarifário aplicado à unidade em estudo, bem como um comparativo com outros tipos de unidades consumidoras com geração distribuída (GD). São realizadas projeções de funcionamento em condições definidas,
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23

Bonfigli, Roberto. "Machine Learning approaches for Non-Intrusive Load Monitoring." Doctoral thesis, Università Politecnica delle Marche, 2018. http://hdl.handle.net/11566/253110.

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La ricerca sulle Smart Grids si è concentrata sulla questione del monitoraggio energetico, in cui il Non-Intrusive Load Monitoring (NILM) rappresenta uno degli argomenti di maggiore interesse: si riferisce alla scomposizione dei dati aggregati di consumo acquisiti in un singolo punto di misurazione nei profili degli elettrodomestici. Questo lavoro riporta uno stato dell'arte aggiornato dei metodi più performanti, con una panoramica dei dataset pubblici disponibili. Tra tutti i metodi proposti, quelli basati su Hidden Markov model (HMM) e su Deep Neural Network (DNN) risultano tra i più perfor
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24

Moghadasiriseh, Amirhasan. "Analysis and Modeling of Advanced Power Control and Protection Requirements for Integrating Renewable Energy Sources in Smart Grid." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2469.

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Attempts to reduce greenhouse gas emissions are promising with the recent dramatic increase of installed renewable energy sources (RES) capacity. Integration of large intermittent renewable resources affects smart grid systems in several significant ways, such as transient and voltage stability, existing protection scheme, and power leveling and energy balancing. To protect the grid from threats related to these issues, utilities impose rigorous technical requirements, more importantly, focusing on fault ride through requirements and active/reactive power responses following disturbances. This
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25

Krátký, Michal. "Analýza toků jalového výkonu v distribuční soustavě." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220684.

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This thesis is focused on issues with transmission of reactive power though the distribution line of E.ON area. The goal is to find out where and in what rate are overflows of reactive power and to project the correctional steps to minimize this overflow. In this solution, there were used data of dispatcher measurement, which were processed by created source code in Matlab. The processing was analyzed for final conclusion. There were discovered shortages in overflow of reactive power in transfer between distribution and transmission line and in unsuitably regulated capacity power factor in Pla
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26

Raimondo, Giuliano. "Power quality improvements in 25kV 50 Hz railway substation based on chopper controlled impedances." Thesis, Toulouse, INPT, 2012. http://www.theses.fr/2012INPT0004/document.

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Ce travail est le résultat d'une collaboration entre le laboratoire LAPLACE, la "Seconda Università degli Studi di Napoli" (SUN) et la Société National des Chemins de fer Français SNCF. Le sujet de recherche concerne l'utilisation de dispositifs électroniques de puissance dans les sous stations ferroviaires 25kV/50Hz afin d’améliorer la qualité de l'énergie électrique. Dans le transport ferroviaire, le système d'électrification monophasé 25kV/50Hz est largement diffusé en particulier pour les lignes ferroviaires à grande vitesse. Bien qu'aujourd'hui les systèmes d’alimentation en courant conti
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27

Al-Saedi, Waleed Abood Baddai. "Optimal Control of Power Quality in Microgrids Using Particle Swarm Optimisation." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2013. https://ro.ecu.edu.au/theses/611.

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Driven by environmental protection, economic factors, conservation of energy resources, and technical challenges, the microgrid has emerged as an innovative small-scale power generation network. Microgrids consist of a cluster of Distributed Generation units that encompass a portion of an electric power distribution system and may rely on different energy sources. Functionally, the microgrid is required to provide adequate levels and quality of power to meet load demands. The issue of power quality is significant as it directly affects the characteristics of the microgrid’s operation. This pro
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28

Kanekiyo, Marco Tadashi. "Controle do fator de potência do motor de indução duplamente alimentado." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258911.

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Orientador: Edson Bim<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-19T12:13:39Z (GMT). No. of bitstreams: 1 Kanekiyo_MarcoTadashi_M.pdf: 2199502 bytes, checksum: 0f0e07fdf7f52de94709720bdddef861 (MD5) Previous issue date: 2011<br>Resumo: O objetivo deste trabalho é o de implementar o controle de velocidade e de potência reativa de um motor de indução duplamente alimentado com orientação de fluxo de estator, mediante o ajuste das componentes de eixo direto e em quadratura das correntes de
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Kasmaei, Mahdi Pourakbari. "Despacho ótimo de potências ativa e reativa de sistema elétricos multi-áreas considerando restrições físicas, econômicas e ambientais = Envronmentally constrained active-reactive optimal power flow-a compromising strategy for economic-emission dispatch and a multi-area paradigm /." Ilha Solteira, 2015. http://hdl.handle.net/11449/126414.

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Orientador: José Roberto Sanches Mantovani<br>Banca: Ruben Augusto Romero Lazaro<br>Banca: Antonio Padilha Feltrin<br>Banca: Elizete de Andrade Amorim<br>Banca: Roberto Chouhy Leborgne<br>Resumo: Nos estudos de planejamento da operação de sistemas de energia elétrica a formulação e solução dos problemas de despacho econômico-ambiental e multi-área são considerados dois problemas de otimização desafiadores. Neste trabalho propõem-se dois novos modelos matemáticos que visam contribuir e contornar algumas desvantagens dos modelos existentes na literatura para os problemas de fluxo de potência óti
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Kasmaei, Mahdi Pourakbari [UNESP]. "Despacho ótimo de potências ativa e reativa de sistema elétricos multi-áreas considerando restrições físicas, econômicas e ambientais =: Envronmentally constrained active-reactive optimal power flow-a compromising strategy for economic-emission dispatch and a multi-area paradigm." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/126414.

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Made available in DSpace on 2015-08-20T17:09:43Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-02-21. Added 1 bitstream(s) on 2015-08-20T17:26:33Z : No. of bitstreams: 1 000842739.pdf: 2853860 bytes, checksum: e865f5bbf60a5ebbea741caed7414898 (MD5)<br>Nos estudos de planejamento da operação de sistemas de energia elétrica a formulação e solução dos problemas de despacho econômico-ambiental e multi-área são considerados dois problemas de otimização desafiadores. Neste trabalho propõem-se dois novos modelos matemáticos que visam contribuir e contornar algumas desvantagens dos modelos e
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Тугай, Дмитро Васильович. "Енергоефективність інтелектуальних систем електропостачання з напівпровідниковими перетворювачами електроенергії". Thesis, Харківський національний університет міського господарства ім. О. М. Бекетова, 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/29735.

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Дисертація на здобуття наукового ступеня доктора технічних наук за спеціальністю 05.09.03 – електротехнічні комплекси та системи. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2017. В дисертаційній роботі розвинена сучасна теорія миттєвих активної і реактивної потужностей, що знайшла нове застосування при розробці методів розрахунку потужності втрат в трифазній СЕ, яка функціонує за принципами Smart Grid і містить енергозберігаючі напівпровідникові перетворювачі і накопичувачі енергії, здатні підтримувати в системі двоспрямований енергетичний потік. Отрим
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El, achkar Maria. "Contribution au Dimensionnement et à la Commande d’un Générateur de type Cascade de Machines Asynchrones à Double Alimentation." Thesis, Cergy-Pontoise, 2016. http://www.theses.fr/2016CERG0814/document.

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Le travail présenté dans cette thèse est une contribution au dimensionnement et à la commande d’un générateur de type Cascade de Machines Asynchrones à Double Alimentation. Le modèle de la machine pour les simulations est basé sur une représentation modulaire qui découle du modèle de Park de deux machines asynchrones doublement alimentées distinctes, en respectant deux systèmes de référence. Le modèle dynamique est ensuite étendu pour décrire la machine dans un repère unifié. Cette représentation est cruciale pour le dimensionnement de la machine et la synthèse de la commande. Le domaine de fo
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Тугай, Дмитро Васильович. "Енергоефективність інтелектуальних систем електропостачання з напівпровідниковими перетворювачами електроенергії". Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/29732.

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Дисертація на здобуття наукового ступеня доктора технічних наук за спеціальністю 05.09.03 – електротехнічні комплекси та системи. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2017. В дисертаційній роботі розвинена сучасна теорія миттєвих активної і реактивної потужностей, що знайшла нове застосування при розробці методів розрахунку потужності втрат в трифазній СЕ, яка функціонує за принципами Smart Grid і містить енергозберігаючі напівпровідникові перетворювачі і накопичувачі енергії, здатні підтримувати в системі двоспрямований енергетичний потік. Отрима
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Самойлов, Дмитро Юрійович, та Dmytro Samoilov. "Зменшення втрат електричної енергії в мережі електропостачання олійноекстракційного заводу". Master's thesis, ТНТУ імені Івана Пулюя, 2019. http://elartu.tntu.edu.ua/handle/lib/29567.

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У дипломній роботі проведено аналіз, та здійснено розробку заходів для зменшення втрат електричної енергії в мережі електропостачання олійноекстракційного заводу. Проведено дослідження системи електропостачання олійноекстракційного заводу в цілому, та одного з його цехів, а саме здійснено вибір комутаційно-захисної апаратури та провідників цехової і заводської мереж, вибір та місце розташування цехових трансформаторних підстанцій грануляційного цеху. Розроблена система електропостачання на основі аналізу електричних навантажень.<br>An analysis is conducted in diploma work, and development of m
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Сиротин, Юрий Александрович. "Компенсация и учет реактивной мощности в электротехнических системах с несимметричными режимами". Thesis, НТУ "ХПИ", 2014. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21116.

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Диссертация на соискание ученой степени доктора технических наук по специальности 05.09.03 - электротехнические комплексы и системы. - Национальный технический университет "Харьковский политехнический институт". - Харьков, 2015. Диссертационная работа посвящена решению важной научно-технической проблемы создания обобщенной теории мощности (ТМ), единого комплексного подхода к компенсации и учету неактивных составляющих полной мощности (ПМ) для обеспечения оптимального режима потребления электрической энергии (ЭЭ) в точке подключения неидеальной нагрузки к сети с несимметричным напряжением. На
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Andrade, Adson íkaro Silva Leite de. "Análise de um compensador estático paralelo monofásico visando a melhoria do fator de potência." Universidade Federal da Paraí­ba, 2011. http://tede.biblioteca.ufpb.br:8080/handle/tede/5325.

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Made available in DSpace on 2015-05-08T14:59:37Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2390386 bytes, checksum: 2877d7af65aad5521adb02a684322a1c (MD5) Previous issue date: 2011-11-17<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>This work consists of developing a control system power factor through the use of a parallel active filter. To this end, the control system of the filter is composed of an outer voltage loop and an inner current loop, based on PI controllers. For its development, it was observed that the application of parallel active filters off
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Villalva, Marcelo Gradella 1978. "Estudo e aplicação de filtros ativos paralelos para sistemas trifasicos com quatro fios." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258788.

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Orientador: Ernesto Ruppert Filho<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-04T17:39:56Z (GMT). No. of bitstreams: 1 Villalva_MarceloGradella_M.pdf: 5074196 bytes, checksum: 39f4e09d9f1f624c909a5ee7f2d3fa4d (MD5) Previous issue date: 2005<br>Resumo: o tema da qualidade de energia elétrica adquiriu grande importância em anos recentes. O número crescente de cargas baseadas em conversores eletrônicos criou a preocupação com a distorção harmônica em sistemas de energia elétrica. Qualidad
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Franco, Junior Edgar Fonseca 1987. "Modelo para previsão de demanda ativa e reativa utilizando técnicas de seleção de entradas e redes neurais artificiais." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261647.

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Orientadores: Takaaki Ohishi, Ricardo Menezes Salgado<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-23T18:34:18Z (GMT). No. of bitstreams: 1 FrancoJunior_EdgarFonseca_M.pdf: 7364704 bytes, checksum: be747ce93528de5661be3b2b3bf77cbc (MD5) Previous issue date: 2013<br>Resumo: Em um sistema de energia elétrica em corrente alternada, a geração, a transmissão e o consumo de energia elétrica são divididos em potência ativa e reativa. O planejamento, a operação e análise destes sistemas são bas
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Bernáth, František. "SW nadstavba analyzátoru sítí pro automatický návrh nn kompenzační jednotky na základě měření." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218704.

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Thesis is devoted to a problem of Power Factor Correction on the low voltage level. It has still its own difficulties despite the fact that topic moved through long development. The main goal of this work is to offer reader variable procedure considering design process. It is based on use of measured data of network analyzer Meg30. The design algorithm has to share a maximum of eventual influencing factors. Therefore the body of master thesis goes through detailed analysis of Power Factor Correction.
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40

Миколаєць, Дмитро Анатолійович. "Фільтро-компенсуючий перетворювач в системі гарантованого електроживлення". Doctoral thesis, Київ, 2015. https://ela.kpi.ua/handle/123456789/17617.

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Дисертація присвячена розробці теоретичних і практичних засад побудови системи гарантованого електроживлення на базі фільтро-компенсуючого перетворювача. В роботі розроблено математичні моделі та виведено аналітичні вирази, які дозволяють визначити основні параметри силової частини фільтро-компенсуючого перетворювача, а також законів його керування, при функціонуванні з системою заряду акумулятора. Запропонована система електроживлення на базі фільтро-компенсуючого перетворювача здатна виконувати як функцію джерела безперебійного живлення, так і компенсатора реактивної потужності. З використа
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Ягуп, Катерина Валеріївна. "Покращання енергетичних показників електротехнічних систем із застосуванням пошукової оптимізації на комп'ютерних моделях". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/35541.

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Дисертація на здобуття наукового ступеня доктора технічних наук за спеціальністю 05.09.03 – електротехнічні комплекси та системи. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. Розглядаються методи оптимізації режимів систем електропостачання з несиметричними і нелінійними навантаженнями з метою підвищення енергетичних показників і розрахунку симетро-компенсуючих пристроїв. Обґрунтовано необхідність і можливість застосування комп'ютерних засобів, розроблено узагальнені алгоритми реалізації пошукової оптимізації. Розроблені методи успішно застосовані д
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42

Ягуп, Катерина Валеріївна. "Покращання енергетичних показників електротехнічних систем із застосуванням пошукової оптимізації на комп'ютерних моделях". Thesis, Харківський національний університет міського господарства ім. О. М. Бекетова, 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/35543.

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Дисертація на здобуття наукового ступеня доктора технічних наук за спеціальністю 05.09.03 – електротехнічні комплекси та системи. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. Розглядаються методи оптимізації режимів систем електропостачання з несиметричними і нелінійними навантаженнями з метою підвищення енергетичних показників і розрахунку симетро-компенсуючих пристроїв. Обґрунтовано необхідність і можливість застосування комп'ютерних засобів, розроблено узагальнені алгоритми реалізації пошукової оптимізації. Розроблені методи успішно застосовані
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43

Murari, André Luiz de Lacerda Ferreira. "Proposta de projeto de ganhos de controladores PI empregados no controle de geradores de indução com rotor bobinado aplicados a sistemas eólicos." reponame:Repositório Institucional da UFABC, 2015.

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Orientador: Prof. Dr. Alfeu Joãozinho Sguarezi Filho<br>Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Engenharia Elétrica, 2015.<br>Inicialmente, este trabalho apresenta aspectos de viabilidade e técnicos para a construção de sistemas de geração eólicos. Nele é disposto uma breve literatura de alguns dos conversores elétricos utilizados para diferentes tipos de geradores. Por fim, este trabalho propõe um método de ajuste de ganhos dos controladores proporcionais-integrais através do emprego do método por compensação de polos da função de transferência do si
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Rocha, Marco Aurélio. "Modelagem e controle de gerador de indução duplamente alimentado para estudo de sistema de geração eólica." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/153628.

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Submitted by Marco Aurelio Rocha (rochamarco.eng@gmail.com) on 2018-04-19T12:44:32Z No. of bitstreams: 1 Dissertação_Marco_Rocha_FINAL.pdf: 4334808 bytes, checksum: bcc84d54c373bafcb2362766219becac (MD5)<br>Approved for entry into archive by Minervina Teixeira Lopes null (vina_lopes@bauru.unesp.br) on 2018-04-19T18:51:03Z (GMT) No. of bitstreams: 1 rocha_ma_me_bauru.pdf: 4334226 bytes, checksum: d2b0086eaa88031ec113f8e0a415c74c (MD5)<br>Made available in DSpace on 2018-04-19T18:51:03Z (GMT). No. of bitstreams: 1 rocha_ma_me_bauru.pdf: 4334226 bytes, checksum: d2b0086eaa88031ec113f8e0a415c7
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Morin, Juliette. "Coordination des moyens de réglage de la tension à l'interface réseau de distribution et de transport; et évolution du réglage temps réel de la tension dans les réseaux de distribution." Thesis, Paris, ENSAM, 2016. http://www.theses.fr/2016ENAM0020/document.

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Le réglage de la tension et la gestion de la puissance réactive est d’une importance capitale pour le bon fonctionnement du système électrique. Les réseaux de distribution connaissent des modifications profondes qui sont tant techniques avec l’insertion de la production décentralisée ou l’enfouissement des lignes aériennes, que réglementaires avec l’entrée en vigueur des codes de réseaux Européens. Aussi, des alternatives aux réglages traditionnels de tension et la mise en place de contrôle des échanges de puissance réactive à l’interface réseau de transport/distribution peuvent être développé
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Alves, Marcos Gutierrez [UNESP]. "Sistema de geração distribuída fotovoltaica com acumulação, controle da injeção de potências ativa e reativa, com capacidade de operação conectada e ilhada." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151952.

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Submitted by MARCOS GUTIERREZ ALVES null (mmarkos.alves@gmail.com) on 2017-10-18T17:25:15Z No. of bitstreams: 1 Marcos Gutierrez Alves - Tese.pdf: 10359243 bytes, checksum: 24da24ccb395d0581201cc49607f4bf6 (MD5)<br>Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-10-23T18:18:25Z (GMT) No. of bitstreams: 1 alves_mg_dr_ilha.pdf: 10359243 bytes, checksum: 24da24ccb395d0581201cc49607f4bf6 (MD5)<br>Made available in DSpace on 2017-10-23T18:18:25Z (GMT). No. of bitstreams: 1 alves_mg_dr_ilha.pdf: 10359243 bytes, checksum: 24da24ccb395d0581201cc49607f4bf6 (MD5) P
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Alves, Marcos Gutierrez. "Sistema de geração distribuída fotovoltaica com acumulação, controle da injeção de potências ativa e reativa, com capacidade de operação conectada e ilhada /." Ilha Solteira, 2017. http://hdl.handle.net/11449/151952.

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Orientador: Carlos Alberto Canesin<br>Resumo: Frente aos novos desafios impostos ao cenário energético mundial, esta tese de doutorado implementa e analisa uma micro-rede de geração distribuída (GD), com acumulação e capacidade de operação conectada ou desconectada da rede de distribuição de energia elétrica (RDEE). A energia é fornecida à RDEE através de seis inversores monofásicos, constituindo uma rede trifásica, sendo três deles com capacidade de operação ilhada e conectada, e outros três com características de fonte de corrente que podem injetar energia de forma controlada, ativa ou reati
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YE, HONG-YI, and 葉泓毅. "Optimal Short-term Active-Reactive Power Scheduling for Power System." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/2njb66.

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碩士<br>國立臺北科技大學<br>電機工程系<br>107<br>In recent years, Taiwan's power policy has targeted non-nuclear homes and renewable energy grid. Develop wind and solar power to reduce environmental damage and safety considerations. Power scheduling issues in power systems are another important goal. How to minimize the total power generation cost of the unit and the power loss of the transmission line, and achieve power supply stability by the reactive power compensation device and controlable load bus voltage. This thesis uses economic dispatch and power flow theory, and the imperialist competition algorit
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"Active Power Filters for current harmonics and reactive powercompensation." Tese, Biblioteca Digital de Teses e Dissertações da UFPE, 2006. http://www.bdtd.ufpe.br/tedeSimplificado//tde_busca/arquivo.php?codArquivo=115.

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Ling, Shih-Tang, and 凌士棠. "Optimal Active-Reactive Power Scheduling with Wind Generation Uncertainties." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/8dq33v.

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碩士<br>國立臺北科技大學<br>電機工程系研究所<br>102<br>The thesis indicates the application of genetic algorithms in the optimal dispatch of active-reactive power of electric system. Past studies usually explore the optimization of one-day active-reactive power dispatch separately(unit commitment、reactive Power and voltage control). The thesis integrates the optimization of the two with intelligent control method, hopefully making more complete dispatch as well as minimizing the total cost of thermal power turbines and total MW loss of transmission lines under all the operational restrictions. Though wind power
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