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Wind generators are increasingly being integrated into high voltage transmission systems as well as low or medium voltage distribution systems. The increased penetration of wind generators into power grid may significantly change the system voltage profile, losses and other operating characteristics. This paper investigates the effects of wind generators on voltage profile and losses of a distribution...
From 2003 through 2008, the Utility Wind Integration Group (UWIG) monitored the performance of one 950 kW turbine located in Palmdale, CA, one 50 kW turbine located in Calverton, NY, and four 50 kW turbines located in Selawik, AK under actual operating conditions. Complete data are available through the UWIG website, with views of real-time and historical data and events. In this paper, we (1) inform...
The increasing use of distributed generation (DG), particularly based on wind power systems, requires new strategies for the operation and management of the power distribution system, especially with high installed capacity. Under this scenario, the power electronic technology plays an important role in the integration of DG into the electrical grid since the DG system is subject to requirements related...
Innovative integration of new technologies can benefit our society greatly. This paper presents a system which exploits the synergy of wind and hydro (windro) generation in an appropriate environment. The system presented is a pumped storage system integrated into a skyscraper to store wind power and deliver it at times of peak demand. A discussion is provided of why this is an appropriate environment...
This paper presents a methodology for integrated reliability evaluation of distribution and sub-transmission systems with the presence of distributed generation (DG) based on different energy sources. The methodology considers the possibility of DG connection at the High Voltage (HV) and Medium Voltage (MV) buses of the distribution substation, as well as along the MV distribution network. The uncertainty...
In this paper a microgrid consisting of wind turbine generators, aqua electrolyzer, fuel cell and diesel generator is examined. The wind generator is controlled using a constant power strategy, to reduce the power fluctuation due to wind speed variations. On the other hand power produced from all the other distributed generation (DG) sources are regulated by simple PI controllers. As the balance between...
Around the world, a rapidly increasing growth of distributed energy resources (DER) based on renewable energy sources (RES) can be observed. This is due to the increase in energy demand combined with restriction in building new large scale power plants and a search for carbon-free technologies for energy production. Among the existing renewable distributed generation technologies, wind turbines (WT)...
In order to integrate distributed generation (DG) in the current electricity grids, it is necessary to identify the essential interventions able to manage the evolution of existing electrical networks. A large penetration of micro generation, also based on renewable energy sources, can be favoured by the creation of microgrids managed by Information and communication technology (ICT). In order to...
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