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Reducing Train Weight and Simplifying Train Design by Using Active Redundancy of Static Inverters for the Onboard Supply of Rolling Stock

G. Bachmann/D. Wimmer
International Journal of Railway, vol. 1, no. 3, pp.89-93, 2008

Abstract : Reliability of onboard power supply systems on rolling stock is a very important issue for the railway operator. While a failure of the HVAC supply results in a loss of comfort for the passengers, a failure of the supply for air compressors or for the traction cooling systems results in towing the train. This is, looking at the required availability of a train, not acceptable. An active redundancy concept for the onboard power supply maximizes the availability of the system. This paper describes such a system under the aspect of • Weight reduction • Continuous operation when changing from normal to redundant operation • Flexibility in train design

Keyword : static inverter, rolling stock, availability of power supply, active redundancy