Browsing by Author "Lopes, J. Peças"
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- Assessment of Power Quality Characteristics of Wind FarmsPublication . Estanqueiro, Ana; Tande, John O.; Lopes, J. PeçasIn this paper the main parameters to assess the power quality of grid embedded wind farms are presented. International standards to assess and quantify the power quality of grid connected wind turbines exist for some years now, and are here extrapolated to wind farms aggregates when possible being the correspondent methodologies identified in the document. Recently, the grid code requirements posed a novel challenge to this technologic area, particularly since they were issued with national or local objectives and without particular normalized global concerns. The form how the international standards are evolving in order to cope both with the power systems industry local requirements, but also with the global wind turbine manufacturers principles is addressed in the paper.
- Barriers (and Solutions...) to Very High Wind Penetration in Power Systems: The Iberian Case StudyPublication . Estanqueiro, Ana; Lopes, J. Peças
- Barriers (and Solutions...) to Very High Wind Penetration in Power SystemsPublication . Estanqueiro, Ana; Jesus, J.M. Ferreira; Ricardo, João; Santos, Amarante dos; Lopes, J. PeçasIn this paper the existing technical barriers that prevent the accomplishment of a very high wind generation penetration in a power system are presented. Since several countries and regions in Europe are already experiencing such high wind penetration or, as a minimum, planning their grids and operation strategies to cope with wind penetration from a high to a very high level, the solutions already identified for the most common constraints are also identified.
- How to develop and manage a power system with more than 20% penetration of wind power?Publication . Estanqueiro, Ana; Lopes, J. Peças
- How to prepare a power system for 12% wind energy penetration: The Portuguese Case StudyPublication . Estanqueiro, Ana; Castro, Rui; Ricardo, João; Pinto, Medeiros; Rodrigues, Reis; Lopes, J. PeçasThe 2001/77/CE Renewable Energies European Directive together with Kyoto Protocol ratification supported by a Government vision and strong objective on the reduction of external oil dependence put Portugal in the front line to achieve one of the highest wind energy penetrations within ten years time. This paper gives a summarized overview of the Portuguese technical approaches and methodologies followed in order to plan and accomodate the ambitious wind power goals to 2010/2013, preserving the overall quality of the power system.
- How to Prepare a Power System for 15% Wind Energy Penetration: the Portuguese Case StudyPublication . Estanqueiro, Ana; Castro, Rui; Flores, Pedro; Ricardo, João; Pinto, Medeiro; Rodrigues, Reis; Lopes, J. PeçasThe 2001/77/CE Renewable Energies European Directive together with Kyoto Protocol ratification supported by a government vision and strong objective on the reduction of external oil dependence put Portugal in the front line to achieve one of the highest wind energy penetrations within 10 years$1 (B time. This paper gives a summarized overview of the Portuguese technical approaches and methodologies followed in order to plan and accommodate the ambitious wind power goals to 2010/2013, preserving the overall quality of the power system.