Search
Now showing items 31-40 of 61
Rotor design and performance evaluation of a PM-assisted reluctance synchronous traction machine
(Stellenbosch : Stellenbosch University, 2005-04)
ENGLISH ABSTRACT: The thesis describes the optimum rotor design and performance of a 110kW
Permanent-Magnet assisted (PM-assisted) Reluctance Synchronous traction Machine
(RSM) using bonded permanent magnet sheets. ...
Design of a Self Regulated and Protected Electrification Transformer
(Stellenbosch : University of Stellenbosch, 2007-03)
Electrification of rural areas is one of the biggest challenges faced by ESKOM and
methods are required to extend medium voltage distribution lines to these often
remote areas. As loads increase due to line-extension, ...
Design of a haptic controller for excavators
(Stellenbosch : University of Stellenbosch, 2009-03)
The input orientation of the excavators in use today usually comprises
two joysticks that control the actuator links individually. In order to perform
an excavation task, several different combinations of joystick ...
Autonomous docking for a satellite pair using monocular vision
(Stellenbosch : University of Stellenbosch, 2009-03)
Autonomous rendezvouz and docking is seen as an enabling technology. It allows, among
others, the construction of larger space platforms in-orbit and also provides a means for the
in-orbit servicing of space vehicles.
In ...
Active capacitor voltage stabilisation in a medium-voltage flying-capacitor multilevel active filter
(Stellenbosch : University of Stellenbosch, 2005-03)
A switching state substitution must be developed that will make use of both single-phase
redundancies and three-phase redundancies in the flying-capacitor topology. Losses should
be taken into consideration and the ...
Electricity theft detection on a low voltage reticulation environment
(Stellenbosch : University of Stellenbosch, 2004-12)
ENGLISH ABSTRACT: Electricity theft in South Africa has become a major problem. This led to several developments
from both industries and research institutes to counter these actions. Since equipment is already
installed ...
Digital control of line-interactive UPS
(Stellenbosch : University of Stellenbosch, 2011-03)
ENGLISH ABSTRACT: The digital control of UPS systems has been difficult in the past due to a lack of DSP technology. It was for
this reason not possible to establishing the necessary control to regulate the voltages and ...
Techniques for enhancing the PLD growth of superconducting YBCO thin films
(Stellenbosch : Stellenbosch University, 2014-12)
ENGLISH ABSTRACT: High Temperature Superconductors (HTS) exhibit exceptional electrical properties that make them
attractive candidates for numerous electronic devices and applications. However, constructing
working ...
Evaluation of a radial flux air-cored permanent magnet machine drive with manual transmission drivetrain for electric vehicles
(Stellenbosch : University of Stellenbosch, 2011-03)
Due to finite oil resources and its political and economical impact, a renewed interest in energy
independence has compelled industry and government to pursue electric vehicle designs.
The current worldwide research that ...
Shunt reactive compensation of voltage dips and unbalance
(Stellenbosch : University of Stellenbosch, 2010-12)
ENGLISH ABSTRACT: The use of power electronic converters provides a more efficient, accurate and
dynamic solution to reactive compensation. In this thesis the application of power
electronic converters to shunt reactive ...