For long distance and high power transmission, high-voltage direct current (HVDC) transmission is a preferred solution due to its technical and economic advantages. A multi-terminal HVDC (MTDC) transmission system either based on voltage source converters (VSC) or line-commutated converters (LCC) has also been introduced recently. With the development of fast and high breaking capability HVDC c...

This thesis discusses important aspects related to voltage stability indices and their uses in electric power system analysis and operation. Some indices previously studied in the literature are reviewed and implemented in a reduced local network such as Line Stability Index (Lmn), Voltage Collapse Prediction Index (VCPI), and Power Transfer Stability Index (PTSI). In this thesis, a new index, ...

In this paper, a receding horizon control approach is developed for voltage stabilization in power systems. The primary focus is on a benchmark system proposed in the context of a European project. The system is termed hybrid due to the finite set of control inputs, state automata description of the voltage primary controller and their interactions with the load nonlinear continuous dynamics. M...

Modeling and simulation of nonlinear systems under chaotic behavior is presented. Nonlinear systems and their relation to chaos as a result of nonlinear interaction of different elements in the system are presented. Application of chaotic theory for power systems is discussed through simulation results. Simulation of somemathematical equations, e.g. Vander Pol’s equation, Lorenz’s equation, Duf...

The loading margin to a saddle-node orfold bifurcation is a useful and basic index of proximityto voltage collapse. Sensitivities of the loading margincan be used to select controls to avoid voltage collapse.This paper justifies the use of static power models to com-pute loading margins and their sensitivities. In particular,dynamic load models may be reduced to static e...

This work presents the modeling and analysis of CMUT using the MEMS simulation software, Coventorware. A rectangular membrane CMUT of area 40μm X 20μm with 0.2μm thickness of silicon nitride as the movable membrane was designed. To reduce the parasitic capacitance, silicon substrate with gold was used as the fixed bottom electrode, and the combination of aluminium and chromium were used as top ...