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Protection Of Active Distribution Networks And Their Cyber Physical Infrastructure, Hany Fawzy Kamel Habib
Protection Of Active Distribution Networks And Their Cyber Physical Infrastructure, Hany Fawzy Kamel Habib
FIU Electronic Theses and Dissertations
Today’s Smart Grid constitutes several smaller interconnected microgrids. However, the integration of converter-interfaced distributed generation (DG) in microgrids has raised several issues such as the fact that fault currents in these systems in islanded mode are way less than those in grid connected microgrids. Therefore, microgrid protection schemes require a fast, reliable and robust communication system, with backup, to automatically adjust relay settings for the appropriate current levels according to the microgrid’s operation mode. However, risks of communication link failures, cyber security threats and the high cost involved to avoid them are major challenges for the implementation of an economic …
Ultra-Wideband Secure Communications And Direct Rf Sampling Transceivers, Dimitrios Siafarikas
Ultra-Wideband Secure Communications And Direct Rf Sampling Transceivers, Dimitrios Siafarikas
FIU Electronic Theses and Dissertations
Larger wireless device bandwidth results in new capabilities in terms of higher data rates and security. The 5G evolution is focus on exploiting larger bandwidths for higher though-puts. Interference and co-existence issues can also be addressed by the larger bandwidth in the 5G and 6G evolution. This dissertation introduces of a novel Ultra-wideband (UWB) Code Division Multiple Access (CDMA) technique to exploit the largest bandwidth available in the upcoming wireless connectivity scenarios. The dissertation addresses interference immunity, secure communication at the physical layer and longer distance communication due to increased receiver sensitivity. The dissertation presents the design, workflow, simulations, hardware …