Concept

Induction motor

Publications associées (434)

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Precise positioning over a long stroke is required in various fields. Important advances in the field of electromagnetic motors, piezoelectric actuators and bearing technology allow nanometric and sub-arc-second resolution for linear or rotary actuators, r ...

EPFL2002

Analysis of Slip Energy Recovery Drives Behavior Using the Compex Torque Coefficient Method.

Jean-Jacques Simond, Basile Kawkabani, Alain Sapin

The aim of the present paper is to extend the well-known complex torque coefficient method usually used for synchronous machine rotor oscillations, to a slip energy recovery induction motor drive. To illustrate the effectiveness of the proposed extension, ...

2002

Performance analysis and optimization of the travelling wave ultrasonic motor

Yves Perriard, Matteo Bullo

We will present a method allowing to evaluate the mechanical performances (torque, speed, mechanical power, dissipated losses in the surface of contact between stator and rotor) of the travelling wave ultrasonic motors. The visualization of the motor chara ...

2002

Brushless motor design with global parametric optimization - application to an artificial blood pump

Yves Perriard

Designing transducers or motors, requires the analysis of a lot of parameters such as length, temperature, efficiency, weight, etc. The solution to obtain the optimum results for given specifications is to analyze globally all the free parameters in one go ...

Institute of Mechatronics and Information Systems2002

Toward Indoor Flying Robots

Jean-Daniel Nicoud, Jean-Christophe Zufferey

Developing a research autonomous plane for flying in a laboratory space is a challenge that forces one to understand the specific aerodynamic, power and construction constraints. In order to obtain a very slow flight while maintaining a high maneuverabilit ...

2002

20 MW Compressor LCI Drive: Modeling, Simulation and Measurements.

Jean-Jacques Simond, Mai Tu Xuan, Roland Wetter, Alain Sapin

The LCI (Load commutated Inverter) is still today a suitable solution for supplying high power variable speed drive systems. The following main topics are described in this contribution: The modeling of a 20 MW LCI synchronous drive system for a compressio ...

2002

Asymmetrical multilevel inverter for large induction machine drives

Alfred Rufer

This paper describes some techniques to improve the output waveform quality of multilevel inverts fed-indction machines. The investigated topologies are the diode-clamped and series-connection of H-bridges. Thesetechinques are based on an unequal dc-voltag ...

2001

Transducer design with global parametric optimization

Yves Perriard

To design transducers or motors, it requires the analysis of a lot of parameters such as length, temperature, efficiency, weight, etc. To obtain the optimum results for given specifications, the solution is to analyze globally all the free parameters in on ...

IEEE2001

Sensorless position estimation of linear voice-coil transducers

Yves Perriard, Jan Persson, Christian Blanc

In this paper, a method for sensorless position estimation of linear transducers at standstill is suggested. The method makes use of current pulses, which is a common sensorless starting technique for 3-phase synchronous motors. Most transducers possess ho ...

2001

Linear Induction Motor Demo-Track : a Tool for Renewed Motivation in Electrical Engineering

Alfred Rufer, Martin Veenstra

Technical education in classical fields like electrical engineering is confronted in western countries with on one side a high demand for engineers coming from industry and on the other side by the reduced interest from younger generation, whose interest i ...

2001

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