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

Non-Isolated DC-DC Converters for High Power Appli-cations - Control of the Capacitive Voltage Divider

Alfred Rufer, Philippe Barrade, Gina Kristin Steinke

A non-isolated DC-DC converter is presented, based on the current diverter principle. The converter is foreseen for large power electronic applications where normally the converters are fed from DC supplies at a typical voltage level of around one or two k ...

2014

Voltage Step-Up Converter based on Multistage Stacked Boost Architecture (MSBA)

A non-isolated DC-DC converter is presented, based on the current diverter principle. The converter is foreseen for larger photovoltaic plants or other DC collection networks for renewable energy sources. The topology allows the DC-DC conversion as step-up ...

2014

Renewable energy systems for racing sailboats - From simulations to an experimental device

Alfred Rufer, Philippe Barrade, Simon Delalay, Nicolas Cherix

Providing racing sailboats with renewable energy sources deals with boat performances, reliability and skipper’s security. In this study, an innovative solution is presented to feed a sailboat with green energy by using a hydro-generator. This paper also i ...

2013

Fail-safe Modular Control Platform for Power Electronic Applications in R&D Environments

This paper presents a modular control platform which is tailored for teaching and research applications. It aims at being entirely “student-proof” and features software-independent safety mechanisms, extensive signal conditioning and easy-to-use interfaces ...

2013

New Parametric Model of Medium-Frequency Single-Active-Bridge Converters

Alfred Rufer, Philippe Barrade, Alejandro Rujas, Irma Villar, Asier Garcia Bediaga

This paper presents a new parametric model of a single-active-bridge (SAB) converter with a variable number of phases. The soft-switching behavior and the design of snubbers are also analyzed. The analytical study is validated using PLECS simulation softwa ...

2013

Energetic Macroscopic Representation of a Hybrid Elevator – Considerations on Strategies for Energy Management

Accumulators are inserted on the DC bus of a conventional elevator, to increase its efficiency and limit the power demand on the main feeding grid. In the process that enable the identification of the control of such a system, The Energetic Macroscopic Rep ...

2013

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

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

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

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

Transfert séquentiel d’énergie – adaptation de puissance par supercondensateurs

Cette contribution présente l’interface entre une source d’énergie faible puissance vers une application de puissance plus élevée, à fonctionnement intermittent. Dans le cas considéré, où la source de faible puissance est composée de cellules photovoltaïqu ...

2012

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

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

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

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

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

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

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

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

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

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

Influence of the mechanical limitations of a traction system on energy storage design

An innovative subway without supply rail is presented. This article deals with the sizing of the required on-board energy between two stations in the worst case. The influence of the mechanical limitations is studied: acceleration, jerk and torque limitati ...

Elsevier2010

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