Encontrados 7 documentos, a visualizar página 1 de 1

Assessing micro-generation’s and non-linear loads’ impact in the power quality ...

Distribution networks face an increasing penetration of solar PV (photovoltaic) and small WTG (wind turbine generator) as well as other forms of micro-generation. To this scenario, one must add the dissemination of non-linear loads such as EV (electric vehicles). There is something in common between those loads and sources: the extensive use of power electronic converters with commutated switches. These devices...

Assessment of PV and wind microgeneration's impact in the power quality of low ...

Electric power systems face an ever-growing penetration (PV) and other microgeneration as well as non-linear loads such as electric vehicles. This is a common link between these : the extensive use of power electronics converters. These devices are a source of medium-to-high frequency harmonic distortion and their impact on the local distribution grid must be carefully assessed in order to evaluation possible...

Assessment of PV and wind microgeneration's impact in the power quality of low ...

Modelação de Micro-Sistemas Híbridos Fotovoltaicos/Eólicos para Produção Descen...

Dissertação apresentada para obtenção do grau de Doutor em Ciências da Engenharia, pela Universidade Técnica de Lisboa, Instituto Superior Técnico. ; Neste trabalho são estudados micro-sistemas híbridos fotovoltaicos/eólicos ligados a micro-redes, com limites de produção da ordem de 50kw de potência pico de fotovoltaico e 50kw de eólica. É analisado o funcionamento dos vários elementos de um sitema híbrido de ...

Acciones para el desarrollo de las energias renovables

O parque experimental de energias renováveis da Herdade da Mitra, em Évora integra um sistema de microgeração de abastecimento eléctrico em Portugal, através da integração de diferentes unidades utilizadoras de fontes renováveis: fotovoltaica, eólica, gasificação e digestão anaeróbica. Neste capítulo serão abordadas estas diversas tenologias referindo os princípais conceitos teóricos que suportam cada uma delas...

Autonomous hydrogen systems: control strategy

This paper describes the control strategy for a Stand-Alone Energy System Supported by Totally Renewable Hydrogen Production. The basic control strategy considers the pressurized hydrogen gas storage as the energy buffer. The basic logic is that the exceeding renewable energy (solar and wind) is used to accumulate hydrogen, while the fuel cell uses this hydrogen to produce electrical energy within insufficient ...

Solar XXI building PV systems: performance during the first two yeras of operation

The purpose of this paper is to present the results obtained in the first two years of operation of the grid-connected photovoltaic (PV) systems installed in the named “Solar XXI” building. One PV system, made with multicrystalline silicon modules, has a peak power of 12 kW and was installed on the façade; another system made with amorphous silicon modules has a peak power of 6 kW and was installed in the surro...