system analysis of a regenerative electrical traction … system analysis of a regenerative...
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System Analysis of a Regenerative Electrical Traction Network
The aim of this research project will be to do a thorough load-flow analysis on the 3kV
DC and 33kV AC ring feeder network of the Southern Suburbs Line of Metrorail
Western Cape. The load-flow analysis will include dynamic load modelling of the new
Alstom train sets, especially with regards to their superior regenerative braking
capabilities, that are due to start operating in 2015.
This will be done to investigate the possible energy savings that can be realised by
taking the regenerative braking capabilities of these new train sets into account during
train scheduling. The load-flow analysis will furthermore try to investigate the feasibility
whether or not regenerative traction substations will be able add to the potential energy
savings that can be realised by the regenerative braking capabilities of the new train
sets.
For the load-flow analysis various power systems simulation packages exist. A
thorough investigation will have to be done to propose the best solution for this specific
simulation problem. A recommended starting point is a software package called
DigSilent (http://www.digsilent.de/) due to its wide use within Eskom and by the Energy
Group of the Department of Electrical and Electronic Engineering.
The deliverables of this research project could include but are not limited to the
following:
• a detailed simulation of the electrical traction network of the Southern Suburbs
Line of Metrorail Western Cape
• an estimate of the energy savings that can be realised with the new trains sets
• how train scheduling would effects the energy costs
• whether or not regenerative traction substations can further add to the potential
energy savings that can be realised
• depending on the above, what the return on investment (ROI) would be for the
installation of regenerative traction substations
The bursary value of this project is R 85 000 per annum for two years. For further
details or enquiries please contact: Dr PJ Randewijk, [email protected]