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Programme & Unit Catalogues

Department of Electronic & Electrical Engineering, Unit Catalogue 2007/08


EE50108 Power system simulation & analysis

Credits: 6
Level: Masters
Modular: no specific semester
Assessment: CW 30%, EX 70%
Requisites:
Before taking this unit you must take EE50104

Aims & Learning Objectives:
Aims: To provide a detailed understanding of the basic concepts involved in the simulation and analysis of power systems networks. Objectives:. Define the transmission line propagation constant and its characteristic impedance; demonstrate a clear understanding of some of the fundamental problems of power transfer over long distance a.c. transmission lines; explain power flow equations using Gaussian and Nerotonian methods; understand the difference between stability of single machine and multi-machines within a large power system network.
Content:
Transmission system simulation: Transmission line model; interpretation of the equations; hyperbolic form of the line equation; simple transient analysis; Long line transmission: Steady-state operation; operation under fault conditions; line protection problems associated with compensated lines. Linear and non-linear a.c. power flow solutions: Computer aided analysis; the bus admittance matrix; survey of the different power flow techniques; types of buses in a power system; accounting for transformer tap changers and phase angle shifts. Symmetrical short-circuit analysis for large systems: Tools for power systems network reduction and computer analyses; Korn's formula for the solution of large networks; matrix inversion through factorisation; simulation of disturbances in power system analysis; analysis of three-phase short circuits for circuit breaker rating evaluation. Challenges to ensuring transient stability in large power systems: Stability of a synchronous generator/machine connected to an infinite busbar; process of studying multi-machine power system stability; the electric centre of a power system; the effect of different fault types on transient stability; computer analysis of transient stability of large power systems.