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It is the declared political objective of the European Union and their member countries to significantly reduce carbon dioxide emissions in the future. Those targets are from a today's perspective very ambitious making an extensive restructuring of the electric power system necessary. Concerning this restructuration not a single but multiple paths are possible and therefore the decisive question is...
High penetration of renewable energy sources such as wind generation in microgrids (MGs) causes fluctuations of power flow and significantly affects the power system (PS) operation. This can lead to severe problems, such as system frequency oscillations, and/or violations of power lines capability. With the proper control, superconducting magnetic energy storage (SMES) is able to significantly enhance...
The variable speed double-feed induction generator wind turbine (DFIG) is today the most widely used concept, owing to its high performance, its capability to capture the maximum wind energy, and the low cost of the induction machine. These features contribute to the continuous installation of the DFIG power generation in several countries [1]. As a consequence, in the near future, this type of wind...
At present new materials and development approaches in battery systems are aimed at replacing Lead Acid batteries, not only their common market-available forms but also, in some cases, as devices for large energy storage systems due to their better overall performance. Among these new battery types, sodium-sulphur batteries are a new practical and economical competitive solution to store large amounts...
The incorporation of wind power generation is growing steadily, a fact that is making the utilities evaluate the various influencing aspects of wind power generation onto power systems. On the other hand, the breakthrough of new technologies in the field of electric energy storage makes possible its incorporation into power systems. The characteristics of these energy storages offer a great potential...
This paper discusses the modeling and the dynamic performance of a compressed air energy storage (CAES) plant that converts excess energy available in the power system into stored pneumatic energy by means of a compressor. The charge and discharge modes of the device are performed within maximum power conditions, so that an intermittent time-modulated operation with adjustable speed of the rotor pneumatic...
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