Browsing by Keyword "Integrated circuits"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
Item Low-frequency voltage ripples in the flying capacitors of the nested neutral-point-clamped converter(Institute of Electrical and Electronics Engineers Inc., 2016-05-10) Ghias, Amer M.Y.M.; Pou, Josep; Ceballos, Salvador; Agelidis, Vassilios G.; POWER ELECTRONICS AND SYSTEM EQUIPMENTThe flying capacitors (FCs) of the nested neutral-point-clamped (NNPC) converter show an inherent voltage ripple at fundamental frequency. This ripple can be significantly large under some operating conditions of the converter. In this paper, the amplitudes of the low-frequency voltage ripples in the FCs are determined. An averaged model of the NNPC converter is introduced and used in the analysis. The amplitudes of the capacitor voltage ripples are provided using normalized variables so that this information can be used to size the FCs of the converter in different applications. The results of the analysis are validated experimentally in a laboratory prototype.Item A Survey on honeypots, honeynets and their applications on smart grid(Institute of Electrical and Electronics Engineers Inc., 2019-06) Dalamagkas, Christos; Sarigiannidis, Panagiotis; Ioannidis, Dimosthenis; Iturbe, Eider; Nikolis, Odysseas; Ramos, Francisco; Rios, Erkuden; Sarigiannidis, Antonios; Tzovaras, Dimitrios; Jacquenet, Christian; De Turck, Filip; Chemouil, Prosper; Esposito, Flavio; Festor, Olivier; Cerroni, Walter; Secci, Stefano; CIBERSEC&DLTPower grid is a major part of modern Critical Infrastructure (CIN). The rapid evolution of Information and Communication Technologies (ICT) enables traditional power grids to encompass advanced technologies that allow them to monitor their state, increase their reliability, save costs and provide ICT services to end customers, thus converting them into smart grids. However, smart grid is exposed to several security threats, as hackers might try to exploit vulnerabilities of the industrial infrastructure and cause disruption to national electricity system with severe consequences to citizens and commerce. This paper investigates and compares honey-x technologies that could be applied to smart grid in order to distract intruders, obtain attack strategies, protect the real infrastructure and form forensic evidence to be used in court.