Electrical supply modelling of the Blackwater coal haulage system

The Blackwater heavy haul rail network in Central Queensland is electrified via a 50/25kV auto-transformer distribution system. The traction system is fed from the Central Queensland 132kV transmission network at several locations. The primary objective of this project is to provide decision making tools to explore short-term operational strategies and produce recommendations for long term traction supply augmentations, which enable increased coal haulage, whilst maintaining adequate traction supply system performance and compliance with power quality standards. To achieve the degree of accuracy required and to have confidence in the output of the decision making tools an early decision was made by QRNetwork to construct a comprehensive model of the Blackwater system. This model necessarily encompassed; accurate modelling of the network infrastructure, realistic train performance, and accurate electrical behaviour of QR’s power system infrastructure and the Central Queensland generating and transmission network. Construction of the model required the selection of multiple software products, interfacing of the outputs and inputs of these products and the sourcing of specific railway, power systems and modelling skills. The developed models have to date been used for assessing system capacity, energy consumption, power quality outcomes and the effects of engineering design changes under a variety of scenarios, including: varying train size & number of locomotives, effects of running AC traction with unity Power Factor and regenerative braking, reduced power operation, increased/reduced headway, electrical contingency events, driver methodology changes, short circuit protection studies, harmonic filter design and augmentation options. During the simulations timetable robustness & the effect of random equipment failures are easily explored.

Media Info

  • Pagination: 8p.
  • Monograph Title: Rejuvenation and renaissance: CORE 2010: conference on railway engineering, 12-15 September 2010, Wellington, New Zealand

Subject/Index Terms

Filing Info

  • Accession Number: 01517101
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Mar 4 2014 8:08PM