Electrical Power Engineering 2

Overview

Lectures:
•Electrical machine fundamentals: Magnetic field theory; Faraday’s Law and induced force; A linear DC machine – a simple example
•The DC machine: EMF and torque production; DC machine Commutation; Development of equivalent circuit; Speed control and machine construction.
•The induction machine: rotating field theory; induction machine construction; measurement of machine parameters; Torque and power, torque-speed characteristic, power flow and efficiency; modification of machine characteristics, speed control, machine starting
•Other machines; Analysis of simple universal motor; Single-phase induction machines
•Three-phase quantities: line and phase voltage and currents; power in 3-phase circuits; Real power, Reactive Power, Apparent Power and Power Factor
•Per-Unit System: Definitions & reasons; change of base; transformer representation
•Synchronous Generation: equivalent circuit; generation on infinite busbars; steady-State & Transient Operation; performance Chart
•Transmission Lines: Two-port network representation; Short line representation; Medium line representation by Nominal & Equivalent T and pi; long line representation by Telegraphers equations
•Load Flow Analysis: Node type definitions; Gauss-Seidel method of solution; methods of Voltage & Reactive Power Control
•Symmetrical Components: definitions; asymmetric Fault Analysis by Symmetrical Components

Laboratory classes:
Electrical Machines (induction,DC and Synchronous), transmission line and load flow

Learning Objectives

After the completion of this module you will be able to:
•Understand rotating field theory and electromagnetism
•Apply circuit theory for solving machine equations.
•Use equivalent circuits to analyse machine performance under various condition, e.g., start up, short circuit, breaking etc.
•Undertake machine performance testing.
•Familiarisation with the Per-Unit system
•Understand Synchronous machine operation under steady-state & transient conditions
•Familiarisation with transmission network representation
•An understanding of Load Flow analysis and methods of reactive power compensation and voltage control
•A method of asymmetric fault analysis

Laboratory Classes:
•Practical understanding of the operation & characteristics of different electrical machines
•Experience of modern instrumentation and computer-aided power system simulation & analysis

Skills

During this course of this module you will acquire the following key skills:
•Numeric skills
•Analytical techniques
•Perform experimental work

Assessment

Laboratory