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Voltage control of medium to high power three-phase inverter supply systems
(Stellenbosch : Stellenbosch University, 2001-12)
ENGLISH ABSTRACT: In this thesis a new voltage control method is developed for a three-phase inverter
supply system. The inverter supply system consist of a Permanent Magnet Generator, a
three-phase rectifier, a three-phase ...
An investigation into the use of the vanadium redox flow energy storage system for peak-shaving and load-leveling
(Stellenbosch : Stellenbosch University, 2003-04)
ENGLISH ABSTRACT: This thesis investigates the credibility of the vanadium redox flow energy storage
system, sometimes termed vanadium redox battery (VRB). The focus is on the
use of this technology in peak-shaving and ...
Design of a GPS based time stamping and scheduling system for power system applications
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: This thesis describes the development of a GPS Based Time Stamping and Scheduling
System for power system applications. These applications include Wide Area Measurements
(WAMs) of electrical power ...
Design aspects and optimisation of an axial field permanent magnet machine with an ironless stator
(Stellenbosch : Stellenbosch University, 2003-04)
ENGLISH ABSTRACT: The advent of new high energy product permanent magnet materials has opened great opportunities
for novel electrical machine topologies with advantageous features such as high efficiency
and high ...
Simulation of the switched reluctance machine under single pulse mode operation
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: Two distinct simulation methods have been developed to simulate the single and the
multi-phase excited current waveforms of the switched reluctance machine (SRM)
under single pulse mode operation. These ...
Power system stabilizer and controlled series capacitor small-signal stability performance analysis
(Stellenbosch : Stellenbosch University, 2002-12)
ENGLISH ABSTRACT: This thesis presents results of a study on the small-signal stability of a single-machine
infinite-bus power system. Conditions of generator loading and network impedance are
identified that require ...
Analysis and design of a voltage regulator based on an AC-to-AC converter
(Stellenbosch : Stellenbosch University, 2003-04)
ENGLISH ABSTRACT: This thesis discusses the analysis and design of a voltage regulator based on
an AC-to-AC converter. A background study was performed on the best
topology for the purpose. The chosen topology was ...
Wideband modelling of capacitive voltage sensors for open-air transmission line applications
(Stellenbosch : Stellenbosch University, 2002-12)
ENGLISH ABSTRACT: This dissertation considers the wideband modelling of capacitive voltage sensors for open-air transmission
line applications. Two novel topologies were introduced, namely a differential parallel
plate ...
Transformerless series dip/sag compensation with a multilevel cascaded inverter
(Stellenbosch : Stellenbosch University, 2001-12)
ENGLISH ABSTRACT: This thesis covers the development of a multilevel cascaded inverter for the purpose of costeffective
transformerless series dip compensation. Of all known power quality problems, voltage
dips are the ...
A comparison of the performance of high-voltage insulator materials in a severely polluted coastal environment
(Stellenbosch : Stellenbosch University, 2002-04)
ENGLISH ABSTRACT: The main aim of this research programme was to compare the relative
performance of different insulator materials used in South Africa when subjected
to a severe marine pollution environment. A test ...