Concept

Locomotive

Publications associées (30)

A Mathematical Model for the Locomotive Refueling Problem

This problem corresponds to refueling locomotives at different station yards during the course of its journey. Locomotive tanks have a fixed fuel capacity and prices of fuel vary across yards. In addition, there is a fixed cost for hiring a refueling truck ...

2010

Double trouble

Jean-Jacques Simond, André Hodder, Alexander Schwery

This article presents the modeling, simulation, and practical application of a double-fed asynchronous motor-generator for pumped-storage plants equipped with a three-level VSI cascade. The problem of DC unbalance control is studied in this particular appl ...

2008

Unbalanced DC-link voltage regulation in a back-to-back 3-level PWM converter for a doubly-fed induction motor/generator.

Jean-Jacques Simond, André Hodder, Alexander Schwery

An unbalanced DC-link voltage regulation strategy is proposed for a three-level voltage source inverter used in the rotor cascade of a double-fed asynchronous motor-generator. The major problem in determining the presence of the unbalanced component is inv ...

2005

A new solution for increasing the efficiency of an electric scooter with supercapacitors through a novel, interleaved multi-channel DC/DC converter

Alfred Rufer, Philippe Barrade, Blaise Destraz

Scooters are a well-established transport system for short distances – particularly within cities. Currently, the majority of scooters are petrol powered. Their engines typically exhibit bad efficiencies and thus contribute to global warming by CO2 product ...

2005

Double-fed asynchronous motor-generator equipped with a 3-level VSI cascade

Jean-Jacques Simond, André Hodder, Alexander Schwery

The present paper investigates the complete regulation strategy for a large double-fed asynchronous motor-generator equipped with a 3-level VSI cascade for applications mainly in the field of pumped storage plant. For the present application, the specific ...

2004

Supercapacitive Energy Storage for Diesel - Electric Locomotives

Alfred Rufer, Philippe Barrade, Blaise Destraz

Diesel - electric traction is a well established technology in railways systems, mainly for lines with a low traffic potential. In those conditions, the choice of a diesel powered locomotive is due to the reduced costs compared to the infrastructure cost o ...

2004

Power Assistance for Diesel - Electric Locomotives with Supercapacitive Energy Storage

Alfred Rufer, Philippe Barrade, Blaise Destraz

2004

Hybrid vehicle in railways applications: supercapacitive energy storage for diesel-electric locomotives

Alfred Rufer, Philippe Barrade, Blaise Destraz

Diesel-electric traction is a well-established technology in railways systems, mainly for lines with a low traffic potential. In those conditions, the choice of a diesel-powered locomotive is due to the reduced costs compared to the infrastructure cost of ...

2004

Double-fed asynchronous motor-generator equipped with a 3-level VSI cascade

André Hodder

In a concern for sustainable development, the rational use of electrical energy implies having transportation networks capable of transmitting large quantities of electrical energy over long distances as well as adequate storage plants. This double require ...

EPFL2004

Symmetrical multilevel converters with two quadrant DC-DC feeding

In the technology sector of power electronics and control, the multilevel converter technology is still a rather new research area, but the application possibilities in the field of power drives and energy will demand more solutions with this promising tec ...

EPFL2000

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