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The energy efficiency of a railway electrification system can be improved by the recovery of regenerative braking energy which is converted from the mechanical energy of braking trains. In a direct current (DC) railway power supply system, the regenerated energy which would otherwise be dissipated as heat in braking resistors may be consumed by surrounding accelerating trains, stored by energy storage systems, or fed back to upstream alternative current (AC) sides via reversible substations (RSS). It is necessary to evaluate the benefits related to energy savings achieved by the installation of RSS due to the high cost of initial investment. This paper models DC railway power supply systems in Simulink to simulate power flows within the systems in different scenarios with or without the deployment of RSS. Pantograph voltages of trains and power exchange between AC and DC sides are analysed to illustrate the effectiveness of the developed models and the limits on the braking energy recovery.
|Title of host publication||2020 IEEE 20th Mediterranean Electrotechnical Conference ( MELECON)|
|Place of Publication||Piscataway, N.J.|
|Number of pages||6|
|Publication status||Published - 15 Jul 2020|
|Event||2020 IEEE 20th Mediterranean Electrotechnical Conference (MELECON) - Palermo, Italy|
Duration: 16 Jun 2020 → 18 Jun 2020
|Name||Mediterranean Electrotechnical Conference ( MELECON)|
|Conference||2020 IEEE 20th Mediterranean Electrotechnical Conference (MELECON)|
|Abbreviated title||MELECON 2020|
|Period||16/06/20 → 18/06/20|
- DC railway power supply system
- power exchange
- power flow simulation
- regenerative braking
- reversible substation
FingerprintDive into the research topics of 'Power flow simulation of DC railway power supply systems with regenerative braking'. Together they form a unique fingerprint.
- 1 Finished
Stewart, B. & Roscoe, A.
1/09/17 → 31/01/21
- 8 Citations
- 1 Paper
Fan, F., Li, Y., Ziani, S. & Stewart, B. G., 8 Jan 2021, (Accepted/In press). 6 p.
Research output: Contribution to conference › Paper › peer-reviewOpen AccessFile
- 1 Participation in conference