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Field implementation of a transient voltage measurement facility using HV current transformers
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: The bandwidth of standard HV measurement devices such as capacitive voltage
transformers is too limited in order to measure wideband phenomena. This thesis is
concerned with the investigation into a ...
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 ...
Processing of onboard images to assist automatic forward motion compensation for micro-satellites
(Stellenbosch : Stellenbosch University, 2003-03)
ENGLISH ABSTRACT: South Africa's first micro satellite, SUNSAT, was operational in orbit for 23 months
since its NASA-sponsored launch on February 23, 1999. SUNSAT is a graduate studentdeveloped
satellite from the ...
Natural balancing of the neutral-point-clamped converter
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: The three-level neutral-point-clamped(NPC) converter, being a widely used multilevel
inverter, received a lot of attention recently due to problems associated with de-link
capacitor voltage balancing. ...
Shunt active power filtering algorithms for unbalanced, non-linear loads
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: This thesis presents the design and implementation of shunt active power filtering algorithms for
unbalanced, non-linear loads.
A three-phase four-wire topology is developed in the dqO space. Based on ...
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 ...
Optimization of wind energy transfer using wind turbines
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: The effect of topography and terrain on wind is examined in order to ensure that the wind turbine
positioning will encourage a greater availability of wind energy to it. Maximum power point
tracking ...
Investigation of a high-speed serial bus between satellite subsystems
(Stellenbosch : Stellenbosch University, 2003-04)
ENGLISH ABSTRACT: The aim of this thesis is to investigate the implementation of a high-speed serial bus based
on the IEEE Std 1394-1995 specification for use in a microsatellite.
Earth observation microsatellites carry ...
Non-destructive testing of capless porcelain line post insulators to detect internal defects
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: This project relates to the unexplained failure of 33kV porcelain line post insulators in
ESKOM's Southern Region. An initial investigation suggested that the failures could
probably be due to a ...