Determination of Traction Power Distribution System Impedances and Susceptances for AC Railroad Electrification Systems

Mutual Impedance ◽

Electrical characteristics of the traction electrification system, together with the train power demand, headway, and operating scenario, are the key factors in determining the overall system performance. A mathematical procedure for calculation of traction power distribution system line impedances and capacitances is developed using the Alternative Transient Program (ATP). The technique is applied to Direct Feed and Autotransformer Feed traction electrification systems and typical results for one-, two-, three-, and four-track railroads are presented. All self-and mutual impedance and capacitance components are included in the calculations.

Study on modeling and simulation of rail transit traction power supply system in urban power distribution system by using PSCAD

2014 China International Conference on Electricity Distribution (CICED) ◽

10.1109/ciced.2014.6991801 ◽

2014 ◽

Author(s):

Na Rong ◽

Song Han ◽

Tian-lin Li ◽

Xiao-jun Peng

Keyword(s):

Power Supply ◽

Power Distribution ◽

Distribution System ◽

Power Supply System ◽

Supply System ◽

Rail Transit ◽

Traction Power Supply System ◽

Traction Power Supply ◽

Short circuit currents of the SEPTA traction power distribution system

IEEE Industry Applications Magazine ◽

10.1109/2943.628144 ◽

1997 ◽

Vol 3 (6) ◽

pp. 52-59 ◽

Cited By ~ 3

Author(s):

R. Natarajan ◽

T.A. Kneschke ◽

W. Naqvi ◽

M.A. Lopez-Lopez ◽

J. Hong ◽

...

Keyword(s):

Power Distribution ◽

Distribution System ◽

Short Circuit ◽

Short Circuit Currents ◽

Electric Power Distribution System Performance in Carolina Hurricanes

Natural Hazards Review ◽

10.1061/(asce)1527-6988(2003)4:1(36) ◽

2003 ◽

Vol 4 (1) ◽

pp. 36-45 ◽

Cited By ~ 72

Author(s):

Rachel A. Davidson ◽

Haibin Liu ◽

Isaac K. Sarpong ◽

Peter Sparks ◽

David V. Rosowsky

Keyword(s):

Electric Power ◽

Power Distribution ◽

Distribution System ◽

System Performance ◽

Electric Power Distribution

Directly and Indirectly Reducing Visual Impact of Electric Railway Overhead Contact Systems

Transportation Research Record Journal of the Transportation Research Board ◽

10.1177/0361198105193000107 ◽

2005 ◽

Vol 1930 (1) ◽

pp. 57-61

Author(s):

Jack W. Boorse

Keyword(s):

Power Distribution ◽

Distribution System ◽

Traditional Approach ◽

Local Environment ◽

Light Rail ◽

Design Concepts ◽

Entire Line ◽

Visual Impact ◽

This paper discusses the visual impact of the overhead wiring, known more formally as an overhead contact system, that is an integral part of a light rail transit network. In situations in which this type of impact causes community concern, the traditional approach has been to employ design concepts that minimize the amount of visible electrical hardware that is installed. This is a valid and worthy objective, but there are additional ways to address this issue. This paper explores various components of a traction power distribution system, including contact wires, feeder cables, and supporting structures. It discusses past and current practices to make some of these components less intrusive and suggests additional methods that might be employed. It also suggests, in some situations, applying design concepts that would address the issue of visual impact in a different manner. The essence of this initiative is that the visible elements might be reconfigured into a form of street art so that their appearance would actually enhance the local environment. It suggests that the concept of art in transit, now largely oriented to station areas, might be expanded to include the traction power infrastructure along the entire line.

Short circuit currents of the SEPTA's traction power distribution system

Proceedings of Industrial and Commercial Power Systems Conference ◽

10.1109/icps.1994.303548 ◽

2002 ◽

Author(s):

R. Natarajan ◽

M.A. Lopez-Lopez ◽

R.M. Bucci ◽

T.A. Kneshke ◽

J. Hong ◽

...

Keyword(s):

Power Distribution ◽

Distribution System ◽

Short Circuit ◽

Short Circuit Currents ◽

ASME/IEEE 2007 Joint Rail Conference and Internal Combustion Engine Division Spring Technical Conference ◽

Traction Power Substation Protection and Controls Using Programmable Logic Controllers

10.1115/jrc/ice2007-40044 ◽

2007 ◽

Author(s):

Kinh D. Pham ◽

Ja-Mie Luey ◽

Darin Schroyer

Keyword(s):

Power Distribution ◽

Distribution System ◽

Programmable Logic ◽

Digital Devices ◽

Scada System ◽

Power Substation ◽

Machine Interface ◽

Protective Relays ◽

A number of microprocessor-based digital devices with communication capabilities have been manufactured for traction power substations. These devices include protective relays, fault recorders, and metering units. One such device is the SIEMENS SITRAS DPU96 relay that provides over-current and rate-of-rise protection for faults on DC traction power distribution system. To fully utilize this digital technology, Programmable Logic Controller (PLC) was the best mean of collecting and organizing data from these devices locally at the traction power substation and also provide easy interface with the SCADA system. PLC was also used for high rail-to-earth potential monitoring and protection. The trip characteristics of this relay require adjustability over the voltage ranges normally from 40Vdc to 160Vdc and time-delay range from 10ms to 3 seconds which can be easily accomplished with PLC programming. This paper describes the applications of digital relays, human machine interface (HMI), and PLC in a traction power substation.