Synchronous Machine
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Equipment for Monitoring Synchronous Generators Condition through External Magnetic Field Waveforms
Abstract This paper presents an equipment for monitoring synchronous generators condition through characteristics of the time derivative of the external magnetic field. The developed monitoring methodology allows the identification of established or incipient faults, by detecting changes in the magnetic signature of the synchronous generator. In this methodo
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. On-load Back-EMF Optimization Based on the Back-EMF MST Method and Parametric Optimization
Abstract This paper proposes an optimal design for a surface mounted permanent magnet synchronous machine (SM-PMSM) based on parametric optimization process to reduce the on-load Back-EMF distortions caused by an increase in the electromagnetic load and in the saturation. Unlike conventional methods described in the literature, the optimization approach prop
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 12/09/2019
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3. Green Energy Generation Using FLC Based WECS With Lithium Ion Polymer Batteries
ABSTRACT Green Energy Generation Using Wind energy conversion system is achieved using Lithium Ion Polymer Batteries and Fuzzy logic controller. Presented scheme also provides the constant output power for the stand alone loads like Island, Hills Stations, Ships and Remote locations etc. A fuzzy-logic controller based Wind energy conversion system with perma
Braz. arch. biol. technol.. Publicado em: 23/01/2017
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4. Dynamic load-balancing : a new strategy for weather forecast models
Weather forecasting models are computationally intensive applications and traditionally they are executed in parallel machines. However, some issues prevent these models from fully exploiting the available computing power. One of such issues is load imbalance, i.e., the uneven distribution of load across the processors of the parallel machine. Since weather
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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5. Algoritmo para frenagem regenerativa de uma máquina síncrona de imã permanente / Algorithm for regenerative braking of a permanent magnet synchronous machine
Environmental protection and optimal energy resources are great activity research areas. As a result of these researches, electric vehicles (EVs) and hybrid (HEV) developments have been accelerated. They have challenging problems such as low autonomy, power conversion, vehicle control, energy management and distribution within it, as well as the esthetic and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/08/2010
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6. Uma contribuição à alocação de geração distribuída, a inserção de PCHs com máquinas síncronas nos sistemas rurais de média tensão
The present work is about an analysis in the domain of distributed generation (DG) allocation in rural distribution systems; the study takes into account the synchronous machines. In such a way, it was possible to research several impacts caused by DG in distribution systems, such as: the rotor angle stability problem under small disturbances; increase of vo
Publicado em: 2009
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7. Avaliação dos Impactos da Impedância de Falta e da Geração Distribuída em Estudos de Afundamentos de Tensão / Impact Assessment of Fault Impedance and Distributed Generation Studies of Voltage Sags
This work presents an impact analysis of the fault impedance and distributed ge- neration on the amplitude and annual average quantity of voltage sags in sensitive end-users. Phase-to-ground solid and non-solid faults were simulated in 62 transmission lines at 230, 138, 69 and 13.8 kV, which made part of the electrical system of the municipality of Goiânia,
Publicado em: 2009
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8. Controle do fluxo de potencia do gerador de indução duplamente alimentado funcionando na velocidade subsincrona / Power flux control of doubly fed induction generator operating at sub-synchronous speeds
Esta tese trata da implementação do controle do fluxo de potência de um gerador de indução duplamente alimentado conectado ao barramento infinito. A orientação de fluxo do estator é utilizada, pois permite o controle, de forma independente, das potências ativa e reativa do estator, por meio das componentes de eixo direto e em quadratura da corrente
Publicado em: 2008
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9. Uma contribuição à modelagem de complexos eólicos contendo geradores especiais para atenuação das componentes harmônicas
Most of the wind energy conversion systems (WECS) currently in operation in the world use asynchronous generators in the transformation of wind energy into electricity energy. In Brazil, although it is recognized that the parcel of wind farms is still very reduced, it is evidenced that the principle of the employed generation is mainly synchronous. Within th
Publicado em: 2007
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10. Geração distribuida utilizando micro-centrais hidro-elétricas com tecnologia assíncrona / Distributed generation using induction technology
Este trabalho abordou a viabilidade técnica da utilização da Máquina de Indução nas PCHs em substituição às Máquinas Síncronas, como uma alternativa economicamente viável para a geração de energia elétrica, combinando a geração convencional com a descentralizada com enfoque na micro geração, podendo contornar uma série de problemas presen
Publicado em: 2007
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11. Distributed generation using induction technology / GeraÃÃo distribuida utilizando micro-centrais hidro-elÃtricas com tecnologia assÃncrona
Este trabalho abordou a viabilidade tÃcnica da utilizaÃÃo da MÃquina de InduÃÃo nas PCHs em substituiÃÃo Ãs MÃquinas SÃncronas, como uma alternativa economicamente viÃvel para a geraÃÃo de energia elÃtrica, combinando a geraÃÃo convencional com a descentralizada com enfoque na micro geraÃÃo, podendo contornar uma sÃrie de problemas presen
Publicado em: 2007
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12. FLUXO DE POTÊNCIA ÓTIMO COM RESTRIÇÕES DA CURVA DE CAPABILIDADE DO GERADOR SÍNCRONO / EXCELLENT FLOW OF POWER WITH RESTRICTIONS OF THE CURVE OF CAPABILIDADE OF THE SYNCHRONOUS GENERATOR
This work presents the equations of operation limits of the synchronous machine that constitute the so called capability curve. From these mathematical equations, deduced from each one of these limits, the graphic of the operation curve is computationally generated, defining the operation region of the synchronous machine so that their windings do not itself
Publicado em: 2006