Prof. Yves Perriard

Adjunct Professor

Yves Perriard was born in Lausanne in 1965. He received the M. Sc. in Microengineering from the Swiss Federal Institute of Technology - Lausanne (EPFL) in 1989 and the Ph D. degree in 1992. Co-founder of Micro-Beam SA, he was CEO of this company involved in high precision electric drive. Senior lecturer from 1998 and professor since 2003, he is currently director of Laboratory of Integrated Actuators. His research interests are in the field of new actuator design and associated electronic devices. In 2009, he is appointed Vice-Director of the Microengineering Institute in Neuchâtel until 2011. In 2013 the Federal Council has named him the the CTI commission in Bern. In 2014 he is appointed guest professor at Zhejiang University in China. In 2017, the lab is granted by the Werner Siemens Foundation of an amount of 12 millions CHF in order to set up a new Center for Artificial Muscules. Since 2018, he is Expert with Innosuisse, the new Swiss Innovation Agency.

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News

Research Area

The LAI is specialized in modeling (using developed analytical models and FEM) and design optimization of rotating and linear electric and piezoelectric motors and actuators. The design optimization is performed using deterministic methods (based on various gradient methods - the commercial software ProDesign) or stochastic ones (a genetic algorithm developed by the LAI members, or design for experiment). The power range is from several kW (electric traction) down to uW (MEMS - batch-processed motor placed on a silicon chip). To miniaturize an electric drive and increase its reliability by eliminating position sensors, sensorless control algorithms are applied. A broad set of electromagnetic phenomena is exploited to estimate the rotor/mover position. Among them, two completely new ones are used: the first one is the magnetic anisotropy of permanent magnet materials (MAM method) and the second is the local B-H hysteresis loops. In the field of piezoelectric actuators, two main axis of research are followed. One axis concerns the generation of a touch feeling: a piezoelectric actuator generates vibrations of a touch screen so that the user's finger feels a modified friction coefficient when it touches the screen. The second axis concerns generation of high forces in a reduced volume.

Contact


Yves PERRIARD
EPFL STI IMT LAI
MC A4 298 (Bâtiment MC)
Rue de la Maladière 71b, CP 526
CH-2002 Neuchâtel 2