Publication

Energy management in an airflow regulator

Publications associées (52)

Convertisseur de fréquence indirect à rapport de tension fixe

Many electric power generators use gas turbines as power sources. Typically they are connected to the turbines through a mechanical gearbox in order to adapt their synchronous speed to the optimal rotation speed of the turbine, which is very often much hig ...

EPFL2007

Hybrid Energy Storage System Based on Compressed Air and Super-Capacitors with Maximum Efficiency Point Tracking (MEPT)

Alfred Rufer

This paper presents a hybrid energy storage system mainly based on Compressed Air, where the storage and withdrawal of energy are done within maximum efficiency conditions. As these maximum efficiency conditions impose the level of converted power, an inte ...

2006

A hybrid energy storage system based on compressed air and supercapacitors with maximum efficiency point tracking

Alfred Rufer

This paper presents a hybrid energy storage system based on Compressed Air Energy Storage (CAES), where the extraction of energy is done within maximum efficiency conditions. As the maximum efficiency conditions impose the level of converted power, an inte ...

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

Principle of a hibrid Compressed Air and Supercapacitors Energy Storage system with Maximum Efficiency Point Tracking

Alfred Rufer, Philippe Barrade, Félix Grasser

2003

Voltage drop compensation for weak distribution systems : Simulation for study and implementation

Alfred Rufer, Philippe Barrade

Supercapacitor represent one of the newest innovations in the field of electrical energy rtorage, and are subject of several developments in the industry for many different and news applications. Supercapacitors, which can supply a high instantaneous power ...

2002

Energy feeding with sequential storage : Properties of the fast energy transfer between supercapacitive tanks

Alfred Rufer, Philippe Barrade

Supercapacitors are new and powerful components for energy storage. Compared with batteries, the amount of energy they can store is low. But, as power sources they have the property to be re-loadable in a few seconds [1][2][3]. In that case, the needed ins ...

2002

Application of the code THEA to the CONDOPT experiment in SULTAN

Pierluigi Bruzzone, Luca Bottura

The CONDOPT (CONDuctor OPTimization) experiment has been recently completed in SULTAN. The current sharing behavior of Nb-3 Sn samples was assessed as a function of the number of cyclic loads experienced during current sweeps in a 10 T background field. We ...

2002

High-Power Fast Energy Exchange between Storage Systems : Supercapacitors as energy buffer in transportation systems

Alfred Rufer, Philippe Barrade

Recent developments make appear new devices for energy storage, such as supercapacitors. Those components are able to store a high energy density. Even if this energy is still lower than the energy batteries can store, thos components can be loaded and/or ...

2001

Power smoothing and high power fast energy exchange between storage systems

Alfred Rufer, Philippe Barrade

Supercapacitors are new components ale to store a high energy density aven if this energy is still lower than the energy batteries can store. This paper shows how supercapacitors can be used to supply electric vehicle such as busses and tramways. The "on-b ...

2001

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