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Electrical distribution networks worldwide are facing frequent capacity challenges due to the widespread roll out of various distributed energy resources (DERs). A number of demand response (DR) mechanisms have been developed in order to circumvent the problems and enhance the flexibility of the distribution network. While the existing centralised control system remains its crucial role for reliable...
Most rural areas in South East Asia and Africa have insufficient accessibility to utility grid, because they are located on islands and/or because they consist of remote villages without access to the main system. In order to address the electrification problems in these areas, microgrids have been considered as an attractive solution to effectively utilize the distributed energy resources to meet...
The transition from conventional power systems to smart grids is leading to a new generation of power networks which, among others characteristics, allows a more flexible demand consumption, and the efficient integration of renewable resources. MicroGrids (MGs) are a clear example of this trend. In this paper, a Multi-Agent Systems (MAS) implementation is proposed to address a decentralized operation...
A multiport converter with a high frequency (hf) ac bus is proposed for use as a distributed energy resource (DER) to grid interface with an integrated energy storage system (ESS). The combination of DER and ESS allows the DER to provide load following, load leveling, power quality compensation, voltage and frequency control, and spinning reserve, as well as savings on deferred installation of new...
The growth in distributed energy resources has the potential to reduce system stresses caused by transmission grid congestion by supplying power and voltage regulation closer to load centers. However, the additional voltage regulation provided by these resources can mask the onset of voltage collapse. Local voltage support flattens the slope in the upper region of the power-voltage nose curve. Coordinating...
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