Publicação
Integração de fontes renováveis no sistema eléctrico através de Centrais Renováveis Virtuais
| Resumo: | The integration of renewable energy sources (RES) generation in the electric network as well as the management of this component of the power system poses serious challenges, both for system managers and for electric network planners. The recent introduction of the “Renewable Virtual Power Plants” concept enables multiple positive factors for the electric integration of these sources, namely (a) the smoothing of time based fluctuation of the power delivered by the RES (particularly accentuated in the case of wind energy), (b) the use of the natural complementary of renewable resources availability (c) the establishment of synergies between different RES as well as the combination of their production. These synergies would make possible the creation of a merged daily production profiles, more adapted to the load profile than that of individual RES. The present work will address a realistic case-study to identify the synergies between wind and photovoltaic (PV) plants, regarding (a) their natural complementarity and availability of the resources and (b) technical and economic value of an hybrid wind-PV virtual power plant, both from the system management point of view and the decrease in infrastructural needs, i.e. interconnection transmission line, transformers and auxiliary equipment. Time-domain models with capacity to represent the behavior of these plants in detail are used, also enabling future dynamic studies. Nevertheless, for the purpose of the present study these models are applied to quasi-stationery phenomena. Results of work carried on include the characterization and optimization of hybrid virtual wind-PV plants production profile and the potential benefit of using storage solutions to shift energy from no load hours to peak load hours. |
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| Autores principais: | Rodrigues Junior, Luís Carlos |
| Assunto: | Central renovável virtual CRV Integração na rede de energia renovável Suavização de flutuações de potência Qualidade de energia Teses de mestrado - 2012 |
| Ano: | 2011 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | português |
| Origem: | Repositório da Universidade de Lisboa |
| Resumo: | The integration of renewable energy sources (RES) generation in the electric network as well as the management of this component of the power system poses serious challenges, both for system managers and for electric network planners. The recent introduction of the “Renewable Virtual Power Plants” concept enables multiple positive factors for the electric integration of these sources, namely (a) the smoothing of time based fluctuation of the power delivered by the RES (particularly accentuated in the case of wind energy), (b) the use of the natural complementary of renewable resources availability (c) the establishment of synergies between different RES as well as the combination of their production. These synergies would make possible the creation of a merged daily production profiles, more adapted to the load profile than that of individual RES. The present work will address a realistic case-study to identify the synergies between wind and photovoltaic (PV) plants, regarding (a) their natural complementarity and availability of the resources and (b) technical and economic value of an hybrid wind-PV virtual power plant, both from the system management point of view and the decrease in infrastructural needs, i.e. interconnection transmission line, transformers and auxiliary equipment. Time-domain models with capacity to represent the behavior of these plants in detail are used, also enabling future dynamic studies. Nevertheless, for the purpose of the present study these models are applied to quasi-stationery phenomena. Results of work carried on include the characterization and optimization of hybrid virtual wind-PV plants production profile and the potential benefit of using storage solutions to shift energy from no load hours to peak load hours. |
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