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Philippe Barrade

Cette personne a quitté l’EPFL

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Publications associées (48)

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Study and Simulation of the Energy Balance of an Urban Transportation Network

Alfred Rufer, Philippe Barrade

This paper proposes and studies new strategies for an increase of the energetic efficiency of an urban transportation network fed with catenaries. A simulation tool has been developed to determine the energy efficiency on the global transportation system ( ...

2007

Energetic Macroscopic Representation and PSIM® simulation: application to a DC/DC converter input filter stability

Philippe Barrade

Simulation is a key issue in the design of control electrical systems. Simulation packages using component library, such as PSIM®, are very useful to achieve this goal. The simulation model is thus easily built from the system topology (structural model). ...

2010

Direct Connection of Supercapacitors to Photovoltaic Panels With On–Off Maximum Power Point Tracking

Alfred Rufer, Philippe Barrade, Simon Delalay

A system dedicated to energy storage is presented. It allows energy storage from photovoltaic panels to a compressed air accumulator. This accumulator is controlled to enable compression and expansion modes under Maximum Efficiency Point Tracking (MEPT). A ...

2012

Sizing of a Supercapacitive Tank: Finite Elements Thermal Modelling

Alfred Rufer, Philippe Barrade

The sizing process of a supercapacitive tank is today a well-known procedure. It enables the identification of the number of cells needed to match energy requirements. In some cases, this number must be increased, in order to match the power needs of the a ...

2008

Design and Control of a Supercapacitor Storage System for Traction Applications

Alfred Rufer, Philippe Barrade

The storage system in this paper is made of supercapacitors. The main goal is to ensure an efficient energy management in a series hybrid vehicle, even if braking resistors are still needed. Design considerations are discussed. In particular the influence ...

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

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

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

Alfred Rufer, Philippe Barrade, Sylvain Lemofouet-Gatsi, Félix Grasser

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 ...

2003

Design methodology of an electric vehicle hybrid energy storage unit for improved energy efficiency

Philippe Barrade

This work proposes a design methodology that allows designing the energy storage unit of an electric vehicle in order to minimize the required energy and the resulting losses. A simple analytical model of the vehicle losses is derived. Driving conditions a ...

2010

Optimal Energy Management Strategy of an Improved Elevator With Energy Storage Capacity Based on Dynamic Programming

Alfred Rufer, Philippe Barrade

Efficiency and energy consumption reduction are becoming a key issue in elevation applications. Energy Storage Systems (ESS) can play a significant role in this field, together with their associated Energy Management Strategy (EMS) to optimize the overall ...

Institute of Electrical and Electronics Engineers2014

An Energetic Based Method Leading to Merged Control Loops for the Stability of Input Filters

Philippe Barrade

In most of applications, power converters are controlled to allow their output current/voltage to follow the required reference values. For DC/DC and DC/AC converters, the control must take into account their input voltage, which must be rejected. In such ...

2010

A new interleaved multi-channel DC/DC converter specially dedicated to low voltage, high current applications

Alfred Rufer, Philippe Barrade

Making transportation systems more energy efficient is one of the key challenge in this century. This paper presents a solution for increasing the efficiency of an electrical scooter by adding a supercapacitive energy storage in parallel to the original ba ...

2006

Energetic Macroscopic Representation of A Linear Reciprocating Compressor Model

Alfred Rufer, François Gallaire, Philippe Barrade, Mahbod Heidari

This article introduces the energetic macroscopic representation (EMR) as approach for the dynamic nonlinear modeling of a reciprocating air compressor. EMR has been introduced recently for research development in complex electromechanical systems and is b ...

Elsevier2015

Étude des commutations pour interrupteurs quatre quadrants, exemple d'application utilisant les transistors MOS

Alfred Rufer, Philippe Barrade, Daniel Siemaszko

Cette recherche s’inscrit dans un travail de thèse sur l’utilisation de nouveaux types de composants de puissance et l’étude de nouveaux types de commutations. En premier lieu, ce travail présente la conception d’un interrupteur bidirectionnel en courant e ...

2006

STUDY AND IMPLEMENTATION OF “DROOP CONTROL” METHODS FOR INTERFACING VOLTAGE SOURCE INVERTERS TO MINIGRID

Philippe Barrade

This contribution presents control methods for the regulation of the voltage and the frequency on AC minigrids, fed by voltage source inverters (VSI). In order to avoid a complex communication network for the synchronization of the various VSI on a minigri ...

2008

Optimal Energy Management of an Improved Elevator with Energy Storage Capacity based on Dynamic Programming

Alfred Rufer, Philippe Barrade

Efficiency and energy consumption reduction are becoming a key issue in elevation applications. Energy Storage Systems (ESS) can play a significant role on this field, together with their associated Energy Management System (EMS) in order to optimize the o ...

Ieee2012

Series Connection of Supercapacitors: Comparative Study of Solutions for the Active equalization of the Voltages

Philippe Barrade

Because of their low voltage level, supercapacitors need arrangement with series connection in order to obtain voltage levels from few dozen to few hunderd of volts. As for batteries, devices have then to be defined to balance the voltages across each seri ...

2002

Design Considerations for the Fast Charge of Supercapacitors in the Frame of Low Voltage Applications

Alfred Rufer, Philippe Barrade, Simon Delalay

Even if supercapacitors present a reduced energy density, they enable to store a significant amount of energy, which leads to a significant autonomy for applications with reduced energy needs. The main advantage of supercapacitors is there to compensate a ...

2011

Efficiency Considerations for the Fast Charge of Supercapacitors in the Frame of Low Voltage Applications

Alfred Rufer, Philippe Barrade, Simon Delalay

Even if supercapacitors present a reduced energy density, they allow to store a significant amount of energy which leads to a significant autonomy for applications with reduced energy needs. The main advantage of supercapacitors is to compensate a limited ...

2010

Energy storage systems

Daniel Favrat, Alfred Rufer, Philippe Barrade

Different types of energy storage systems are described, in particular hydro-pneumatic storage systems. In one, energy is stored by compressing gas in a chamber (44,45,54,55) with a liquid piston and released by gas expansion. A spray head or grid at the t ...

2008

Comparison of Control Strategies for Maximizing Energy in a Supercapacitor Storage Subsystem

Alfred Rufer, Philippe Barrade

A storage supercapacitor subsystem is studied for insertion in a series hybrid electric vehicle (Fig. 1). This subsystem is composed of a supercapacitor bank and a braking resistor used when the supercapacitor voltage is at its maximum value. Generally, wh ...

2009