Publications related to Sensorless position estimation of linear voice-coil transducers

Method for a switching loss reduction in PM drives

Energy saving becomes more and more important. Therefore different improvements have been made in motor design, electronic devices and software in order to increase the overall efficiency of electronic motor drives. Permanent Magnet Synchronous Motors (PMS ...

2012

Slotless Permanent-Magnet Machines: General Analytical Magnetic Field Calculation

Yves Perriard, Pierre-Daniel Pfister

This paper presents a general analytical model for predicting the magnetic field of slotless permanent-magnet machines. The model takes into account the effect of eddy currents in conductive regions and notably in conductive permanent magnets without negle ...

2011

Multivariable-PI-based DQ Current Control of Voltage Source Converters with Superior Axes Decoupling Capability

Alfred Rufer, Behrooz Bahrani, Stephan Kenzelmann

This paper presents a linear direct-quadrature (dq) current control strategy for voltage source converters (VSCs) in a rotating reference frame (RRF). The described method is based on Multivariable proportional-integral (PI) regulators and provides fast dy ...

Institute of Electrical and Electronics Engineers2011

Design and assessment of an electrodynamic loudspeaker used in a variable acoustic lining concept

Hervé Lissek, Anne-Sophie Moreau

The acoustic impedance at the diaphragm of an electroacoustic transducer can be modified using a range of active control strategies, amongst which is “direct impedance control”. This technique employs a combination of feedbacks, one on the acoustic pressur ...

2011

Analyse et mise en oeuvre d'un moteur électromagnétique microfabriqué

Sebastiano Merzaghi

Until now, the preferred solution for MEMS (Micro Electro Mechanical Systems) actuation is the electrostatic one. The main reason is that this kind of actuators can be easily manufactured following the microfabrication rules, as their geometry perfectly fi ...

EPFL2010

Reliable MEMS Actuators for Driving Large Microsystems

Nicolas Bernard Golay

Nowadays many consumer electronic devices are using small engines (micromotors). Thanks to technological innovation, the components can be imbedded into numerous portable systems. The key factors for a nomadic integration are: reduction of power consumptio ...

EPFL2010

Very high-speed slotless permanent-magnet motors

Pierre-Daniel Pfister

The development of very high-speed motors has evolved fascinatingly in the last few years. Due to their speed, their low weight and their high power density, the need for such motors has recently increased for various different applications. Among them, su ...

EPFL2010

Expected loss analysis of thresholded authentication protocols in noisy conditions

Serge Vaudenay, Christos Dimitrakakis, Aikaterini Mitrokotsa

A number of authentication protocols have been proposed recently, where at least some part of the authentication is performed during a phase, lasting

n

rounds, with no error correction. This requires assigning an acceptable threshold for the number of de ...

2010

PM motor sensorless position detection based on iron B-H local hysteresis

Yves Perriard, Miroslav Markovic, Omar Scaglione

A sensorless position detection technique for a permanent magnet (PM) motor with non-salient rotor is presented. It is shown that the phase self inductances and resistances measured at higher frequencies vary slightly with the rotor position. The origin of ...

2009

Exploitation of iron-BH local hysteresis for the rotor position detection of a PM motor

Yves Perriard, Miroslav Markovic, Omar Scaglione

In this paper it is shown that the phase self inductance and resistance, both measured at a high frequency, of a permanent magnet (PM) motor with non-salient rotor vary slightly with the rotor position. The origin of these variations is deeply inve ...

2009

Sensorless position estimation of linear voice-coil transducers

Graph Chatbot

Chat with Graph Search

Method for a switching loss reduction in PM drives

Slotless Permanent-Magnet Machines: General Analytical Magnetic Field Calculation

Multivariable-PI-based DQ Current Control of Voltage Source Converters with Superior Axes Decoupling Capability

Design and assessment of an electrodynamic loudspeaker used in a variable acoustic lining concept

Analyse et mise en oeuvre d'un moteur électromagnétique microfabriqué

Reliable MEMS Actuators for Driving Large Microsystems

Very high-speed slotless permanent-magnet motors

Expected loss analysis of thresholded authentication protocols in noisy conditions

PM motor sensorless position detection based on iron B-H local hysteresis

Exploitation of iron-BH local hysteresis for the rotor position detection of a PM motor

Method for a switching loss reduction in PM drives

Very high-speed slotless permanent-magnet motors

Slotless Permanent-Magnet Machines: General Analytical Magnetic Field Calculation

Multivariable-PI-based DQ Current Control of Voltage Source Converters with Superior Axes Decoupling Capability

Reliable MEMS Actuators for Driving Large Microsystems

Analyse et mise en oeuvre d'un moteur électromagnétique microfabriqué

Expected loss analysis of thresholded authentication protocols in noisy conditions

PM motor sensorless position detection based on iron B-H local hysteresis

Design and assessment of an electrodynamic loudspeaker used in a variable acoustic lining concept

Exploitation of iron-BH local hysteresis for the rotor position detection of a PM motor