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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 ...
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 ...
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 ...
Dynamic digital control schemes for three-phase UPS inverters
(Stellenbosch : Stellenbosch University, 2002-12)
ENGLISH ABSTRACT: This thesis presents the design and implementation of a voltage controller for an
Uninterruptible Power Supply (UPS) Inverter. The inverter is capable of producing a
nearly sinusoidal output voltage ...
Harmonic interaction between weak AC systems and VSC-based HVDC schemes
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: The implementation of the Caprivi Link Interconnector (CLI) High Voltage Direct Current (HVDC) scheme in 2010 connecting the weak Namibian and Zambian Alternating Current (AC) transmission networks via ...
Calibration of UV-sensitive camera for corona detection
(Stellenbosch : University of Stellenbosch, 2007-03)
Electrical energy is continuously transported across the world by high voltage transmission lines. These
transmission lines are however subject to losses beside the inherent resistive and dielectric losses. This
additional ...