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DC microgrids with energy storage systems and demand response for providing support to frequency regulation of electrical power systems

Frequency regulation of electric power systems efficiency depends on response time and on power reserves for frequency regulation. As integration of non-dispatchable renewable generation in the power system results with increased need for power reserves from fast responding power units, the idea of using aggregated DC microgrids in frequency regulation is presented. Model proposed in this work is based on using battery energy storage, combined with demand response for achieving efficient usage of battery energy storage. It is shown that large number of DC microgrids can provide sufficient.

DC microgrid, electrical power system, battery energy storage, demand response, frequency and active power regulation

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