Courses | VD Academic Affairs

Thyristor equivalent circuit, static and dynamic characteristics, Power transistors. DC Choppers, Pulse width modulated inverts. Resonant Pulse Converters, Power Supplies, DC drives, AC drives, Protection of devices and circuits.

Direct power conversion circuit averaging state-space average models, linear and piecewise linear models, design of voltage-mode and current mode regulators, sliding-mode control applications, modeling electric machines, the theory of field orientation and vector control in high performance AC motor drives, application of the above techniques in practice; case studies.

Multiwinding power transformers design features, the n-winding ideal transformer, 3-phase auto transformers, the transformer as a control device. High voltage direct current transmission HVDC: General aspects and comparison with AC transmission converter circuits, analysis of bridge converters, converter charts, harmonics and filters, ground return. Reactive power control. Reactive power control: Load compensation, steady state reactive power control in transmission System, effect on power system. Dynamics, static compensatory, series capacitors, syn. condensers, reactive power coordination. Power system harmonics, sources, system response to harmonics, harmonic pollution in networks, methods of analysis, standards and limits.

Fundamentals of instrumentation. Design and operation of protective schemes for equipment in generation, transmission and distribution circuits. Analysis of abnormal system conditions requiring relay operation.

Relevant factors in power system operation. Theory of optimization under equality and inequality constraints, computational methods and application to generation scheduling.

Simple switching transients. Abnormal transients. Transients in 3-phase circuits. Electromagnetic phenomena of importance under transient conditions. Traveling waves on lines. Lighting. Behaviour of windings under transient conditions. Protection against transient over voltages. Transients in integrated power networks. Computer aids to the calculation of transients.

Ionization and decay processes, electric breakdown in gases, liquid and solid dielectric, generation of high DC, AC and impulse voltages, measurement of high voltage.

An upper division of graduate technical elective treating topics in Electrical Power Engineering not included in other Electrical Power Engineering courses.

The identification of linear dynamic systems. Problem formulation. Review of classical techniques and their limitations. Least squares techniques and their variations as applied to the transfer function and state space description of linear discrete time systems. Recursive techniques and Kalman filters. The maximum likelihood estimators. Mode and structure identification. Diagnostic methods. State estimation and observers. The self tuning regulator.

Real-time and on-line computers for control; constraints imposed by real-time operation, real- time control system elements: hardware components and interface problems associated with real-time control, applicable techniques and algorithms, software problems, real-time scheduling and coordination of user programs, real- time control languages, reliability and speed of recovery of real-time control systems.

Modeling and model simplification methods: An overview. Aggregation technique and properties of the aggregation matrix. Introduction to time-scale modeling and singular perturbations. Decentralized control: Introduction to decentralized control from the optimal control point of view. Hierarchical optimization and control: Linear- quadratic problems and non-linear systems. Applications of these techniques to different fields of Electrical Engineering will be presented.

The dynamic optimization problem, calculus of variations, dynamic programming and maximum principle, optimal linear regulators and properties, extension to servo mechanism, optimal stochastic observers. Case studies.

Nonlinear characteristics of models of physical systems phase plane analysis. Describing function approach. Stability and second method of Lyapunov. Frequency domain stability criteria. Linearization and its properties. Introduction to operate theory and its application to the study of nonlinearities.

Hardware and software aspect of computer-based control systems. Discretization techniques in frequency and time domains. Digital controller design techniques. Optimal control. Adaptive and self-tuning controllers.

An upper division of graduate technical elective treating topics in systems and control Engineering not included in other systems and control courses.