Bombardier Inc.

About: Bombardier Inc. is a company organization based out in Montreal, Quebec, Canada. It is known for research contribution in the topics: Internal combustion engine & Voltage. The organization has 2464 authors who have published 2361 publications receiving 19188 citations. The organization is also known as: L'Auto-Neige Bombardier Limitée & Bombardier Inc..

Medium frequency topology in railway applications

Abstract: The proposed Medium Frequency Topology is replacing the bulky main line transformer on board of railway vehicles. Especially in countries with 15 kV railway power supply, the low frequency of 16.7 Hz is leading to huge and heavy transformers. Today's Transformers are often minimized in weight and volume, which leads to significantly high transformer losses compared with distribution transformers. The Medium Frequency Topology is the power electronic solution that considerably reduces weight and losses of the traction system.

Modelling of suspension components in a rail vehicle dynamics context

Abstract: Suspension components play key roles in the running behaviour of rail vehicles, and therefore, mathematical models of suspension components are essential ingredients of railway vehicle multi-body models. The aims of this paper are to review existing models for railway vehicle suspension components and their use for railway vehicle dynamics multi-body simulations, to describe how model parameters can be defined and to discuss the required level of detail of component models in view of the accuracy expected from the overall simulation model. This paper also addresses track models in use for railway vehicle dynamics simulations, recognising their relevance as an indispensable component of the system simulation model. Finally, this paper reviews methods presently in use for the checking and validation of the simulation model.

Energy storage system with ultracaps on board of railway vehicles

Abstract: The on board energy storage system with Ultracaps for railway vehicles presented in this paper seems to be a reliable technical solution with an enormous energy saving potential. Bombardier Transportation has equipped one bogie of a prototype LRV (light rail vehicle) for the public transportation operator RNV in Mannheim with a MITRAC Energy Saver. Outstanding feature is the daily operation of the energy storage unit in daily passenger service, and this even since September 2003. The experiences are very positive. The measured traction energy saving of approximately 30% confirmed fully the former calculations. Running the energy storage device on board of a tram brings additionally following benefits: (i) a dramatic reduction of the peak power demand (ii) catenary free operation" on several hundred meters without power supply from the catenary (iii) catenary free city center by on board storage and recharging stations. Applying the energy storage devices in Metro systems has a similar effect as in case of LRVs. However the savings distribution in the whole system will be a little bit different. Due to higher regeneration capability of metro systems the expected share of the train propulsion saving will be lower. It will be compensated by a considerable reduction of the line losses, especially for systems with low rated catenary voltages (600 V or 750 V). Very promising are energy storage applications in propulsion systems of diesel-electrical multiple units (DEMUs). These vehicles lack possibilities to use the braking energy of the train. Energy storage systems on board of DEMUs bring high fuel savings together with the corresponding emission reduction. On top of that the energy storage leads to a booster effect - extra power during acceleration from the storage, by adding the limited weight of the MITRAC Energy Saver.