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Publications associées (137)

Balancing Control Actions for Cascaded H-Bridge Converters with Integrated Battery Energy Storage

This paper investigates the ways to handle active power components for control and balancing purposes in three-phase Cascaded H-Bridge converters with embedded battery energy storage systems. The split storage elements are interfaced to the converter modul ...

2013

Multivariable Control of Single-Inductor Dual-Output Buck Converters

Alfred Rufer, Alireza Karimi, Behrooz Bahrani

Cross regulation is the main technical drawback of a Single-Inductor Multiple-Output (SIMO) dc-dc converter. This paper proposes a multivariable digital controller to suppress the cross regulation of a Single-Inductor Dual-Output (SIDO) buck converter in C ...

Ieee2013

Characterization of a 6.5kV IGBT for medium-voltage high-power resonant DC-DC converter

Drazen Dujic

Medium-voltage (MV) high-power converters are usually realized using high-voltage semiconductors (3.3kV, 4.5kV or 6.5kV) operated with low-switching frequencies in the range of several hundred Hz and under hard-switching conditions. However, for medium-vol ...

IEEE2013

Catenary Voltage Support: Adopting Modern Locomotives With Active Line-Side Converters

Alfred Rufer, Behrooz Bahrani, Martin Aeberhard

This paper proposes a voltage support scheme for traction networks, which compensates for the voltage drop along the catenary line to which locomotives are connected. The proposed method is based on the injection of capacitive reactive power through the cu ...

2013

Eigenvalues Analysis Applied to the Stability Study of a Variable Speed Pump Turbine Unit

Jean-Jacques Simond, Basile Kawkabani

This paper presents an eigenvalues analysis method for an induction machine model based on phase variables a, b, c. This approach is validated by comparison with ad, q approach and applied to a variable speed pump-turbine unit using a simplified model of t ...

2012

DC-DC converters in 0.35 mu m m CMOS technology

Stefano Michelis

In view of the upgrade of the LHC experiments, we are developing custom DC/DC converters for a more efficient power distribution scheme. ...

Institute of Physics2012

Power Distribution Solutions for Large Hadron Collider Upgrades

Stefano Michelis

In view of the Large Hadrons Collider experiments upgrade, where the inner front-end electronics will require higher supply power, a new power distribution scheme has to be designed. This thesis presents a new and more efficient scheme based on step-down D ...

EPFL2012

Contribution to the Active Generator Principle

Antoine Béguin

This work is part of the innovative "Active Generator" (AG) project. AG is a concept that suggests a new arrangement of the turbine-generator line of a high power utility (a few hundred of MW) in order to de-synchronize the rotation speed of the turbine-ge ...

EPFL2012

A Buffer-Sizing Algorithm for Network-on-Chips with Multiple Voltage-Frequency Islands

Giovanni De Micheli, Luca Benini, Srinivasan Murali, Akash Kumar

Buffers in on-chip networks constitute a significant proportion of the power consumption and area of the interconnect, and hence reducing them is an important problem. Application-specific designs have nonuniform network utilization, thereby requiring a bu ...

2012

Study on the Reversible DC-DC Converter as Interface between Low and Medium Voltage DC Networks

Alfred Rufer, Stephan Kenzelmann, Carlo Arrioja

This paper introduces an isolated reversible DC-DC converter with a particular topology, which benefits from both the NPC (neutral point clamped) structure and the series-parallel connection of converters. The key property of the proposed topology is the o ...

2012

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