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Now showing items 11-20 of 41
Optimisation methods applied to compensator placement
(Stellenbosch : University of Stellenbosch, 2004-12)
ENGLISH ABSTRACT: The optimal placement of different types of compensators on electrical networks is a complex
task faced by network planners and operations engineers. The successful placement of these
devices normally ...
Design of tapered and straight stator pole switched reluctance machines
(Stellenbosch : Stellenbosch University, 2000-04)
ENGLISH ABSTRACT: This thesis deals with the design and optimisation of medium power traction switched
reluctance machines with tapered and straight stator poles. Only the prototype of the
tapered stator pole machine ...
A reliable telemetry software design for a satellite system
(Stellenbosch : Stellenbosch University, 2001-12)
ENGLISH ABSTRACT: One of the requirements for satellite telemetry systems is the provision of reliable
telemetry data to allow accurate monitoring of the satellite status. This thesis focuses on
the design of telemetry ...
The comparison of AC and DC alternatives for sub-transmission networks
(Stellenbosch : Stellenbosch University, 2001-12)
ENGLISH ABSTRACT: Recent advances in semiconductor technology extended the economic power range
for DC transmission to just a few MW. Network planners need tools to compare AC
and DC alternatives in order to find the ...
Design and evaluation of a 300 kW double stage axial-flux permanent magnet generator
(Stellenbosch : Stellenbosch University, 2001-12)
ENGLISH ABSTRACT: This thesis deals with the design and evaluation of a 300 kW double stage axial-flux
permanent magnet generator with an ironless stator. The magnetic and electrical
design equations are derived for ...
Opportunities for in-line, transistorbased technologies on MV and LV power distribution networks
(Stellenbosch : Stellenbosch University, 2000-12)
ENGLISH ABSTRACT: Once more opportunities exist for innovative technologies to be applied on MV and LV
power distribution networks to meet the new challenges set by government through its
National Electrification Programme ...
Estimation of particle size distributions in mineral process systems using acoustic techniques
(Stellenbosch : Stellenbosch University, 2000-04)
ENGLISH ABSTRACT: A desire to increase the efficiency of the comminution process in mineral process systems
has led to the need of determining the size distribution of ore particles at various stages
in the system. The ...
Some design aspects of the multi flux barrier rotor reluctance synchronous machine
(Stellenbosch : Stellenbosch University, 2000-12)
ENGLISH ABSTRACT: This thesis deals with different design aspects of the multi-flux barrier rotor of the reluctance synchronous
machine (RSM). The effect of the different designs on the performance of the RSM is
investigated ...
Control of a 1.5 MW active power filter and regeneration converter for a Spoornet DC traction substation
(Stellenbosch : University of Stellenbosch, 2005-03)
Although regenerative braking has been in used in railway systems for a long time
already, the energy generated was dissipated in resistor banks. The rapid advances
in the power electronics field, accompanied by the ...
Design of a single-sided axial flux PM in-wheel electric vehicle machine with non-overlap stator windings
(Stellenbosch : University of Stellenbosch, 2009-12)
ENGLISH ABSTRACT: With the current worldwide energy problems electric vehicles are set to replace conventional combustion engine vehicles. Electric vehicles with gearless in-wheel mounted brushless permanent magnet motors ...