Complex nonlinear phenomena are investigated in a basic power system model of the single-machine-infinite-bus (SMIB) with a synchronous generator modeled by a classical third-order differential equation including both angle dynamics and voltage dynamics, the so-called flux decay equation. In contrast, for the second-order differential equation considering the angle dynamics only, it is the clas...

This paper is concentrated mainly to the cause and to clear the Power Swings in synchronous generator due to rotor speed oscillations in wind farm which is a distributed generation to maintain the stability of rotor oscillations. The paper presents different conditions of disturbances and faults in specified time period. In Power System Damping Oscillation modes are excited due to disturbance i...

Background It has previously been shown that isotonic strength training can improve driver performance among golfers, though few studies have investigated effects of strength training on swing kinematics together with driver performance. In this study we investigated whether isokinetic rotational training could improve driver performance and swing kinematic variables amongst elite golfers. Me...

Learning Objectives To be able to perform analysis on power systems with regard to load flow, faults and system stability Outline Syllabus 1. Power Flow Analysis: (8 hrs) Analogue methods of power flow analysis: dc and ac network analysers Digital methods of analysis: Power Flow algorithms and flow charts, analysis using iterative techniques. 2. Power system faults (8 hrs) Causes and effects of...

The advent of deep submicron technologies brings new challenges to digital circuit design. A reduced threshold voltage (VT) and power supply (Vdd) in addition to process variabilities have a direct impact on circuit design. In a semiconductor environment it is conventionally thought that parametric yield is high and stable and that the main yield losses are functional. Although functional yield...

iv v Summary The thesis was conducted during a period of six months at the University of Cali-In this thesis we revisit the classic slow coherency and area aggregation approach to model reduction in power networks. The slow coherency approach is based on identifying sparsely and densely connected areas of a network, within which all generators swing coherently. A timescale separation and singul...