Monographies
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Item Oscillation Detection Using PMU Technology in the North Africa Power System(Springer, 2019) Tsebia, Mohammed; Bentarzi, HamidMonitoring of the electrical power system has an importance in itsreliability. In order to ensure the best monitoring, the system of measure andcommunication must be precise and in real time. The integration of PMUtechnology in the electrical power system improves reliability monitoring for thelocal and large area power system. In this paper, we have used PMU technologyin the North African electric power systemItem Graph theory based reliability assessment software program for complex systems(Springer Science and Business Media Deutschland GmbH, 2020) Bourezg, Abdrabbi; Bentarzi, HamidReliability is a conceptual term that means endurance, dependability, andgood performance. However, in system engineering, it is more than a conceptualterm; it can be measured and evaluated. Reliability means the ability of a system toperform the required task under the normal conditions during its age. A complexityin system reliability may be commonly arisen due to the interconnection of variouselements in the form of a network that can be represented by graphs. The graph theoryand computer programs are essential tools for analyzing large and complex systems.This chapter presents how a complexity of system reliability can be reduced throughthe use of computer programs based on a graph theory. The software program hasbeen developed for reliability assessment of complex systems such as aircraft. Itcan handle any statistical distributions. It uses the inclusion-exclusion method forfinding the minimal paths for directed acyclic graph using reliability block diagram(RBD). A system may be considered to operate if there exists a set of functioningcomponents from source to target. So, at least one minimal path must function forthe system operation. The probability of the union of all minimal paths can be usedto find the reliability of the whole systemItem PMU deployment in power system oscillation monitoring(Springer, 2016) Recioui, Abdelmadjid; Bentarzi, Hamid; Tsebia, MohammedOscillatory events at low frequencies are commonly witnessed in interconnected power systems. Phasor Measurement Units (PMU) can provide time-synchronized measurements; it can communicate the synchronized local and inter-area information to remote station. In this paper, we have modeled a PMU, and we have tested it in the 14-bus power system . It proposes a real-time monitoring tool that exploits synchronized phasor measurements from PMUs, which allow real-time analysis of higher-frequency events, filling the lack of such monitoring application in the power systems areaItem Transport in metal-oxide-semiconductor structures mobile lons effects on the oxide properties(Springer, 2011) Bentarzi, Hamid