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Douglas Martins Araujo

Cette personne n’est plus à l’EPFL

Publications associées (22)

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General Sensorless Method with Parameter Identification and Double Kalman Filter Applied to a Bistable Fast Linear Switched Reluctance Actuator for Textile Machine

Yves Perriard, Douglas Martins Araujo, Faguy Tamwo Simo

This paper provides a general sensorless method to control the position of a linear actuator. After a review of the solutions used so far, this new method is applied to identify keys passing through a linear actuator used in an industrial textile machine. ...

INST ELECTRICAL ENGINEERS JAPAN2019

Force and Torque Model of Ironless Passive Magnetic Bearing Structures

Yves Perriard, Douglas Martins Araujo, Leopoldo Rossini, Guzmán Borque Gallego

This article presents the development and validation of a three-dimensional force and torque semi-analytical model for ironless permanent magnet structures. This method relies on the definition of the magnetic flux density generated by permanent magnets in ...

IEEE2019

Passive, Active and Loss Tradeoffs in High-Speed Bearingless Motors

Yves Perriard, Douglas Martins Araujo

Material costs and novel applications have directed research interests towards miniaturized, faster rotatory electric drives. The challenges of miniaturization have made magnetic bearings more attractive, which are naturally suited for high speeds and virt ...

2018

Force Analysis of a Slotless Lorentz-Type Active Magnetic Bearing Actuator

Yves Perriard, Douglas Martins Araujo, Leopoldo Rossini, Guzmán Borque Gallego

This article presents the analysis of the three-dimensional forces applied by a slotless Lorentz-type fully-active magnetic bearing actuator. An analytical model is presented for defining the forces applied by every radial and axial bearing of the actuator ...

2018

Optimization of shape and topology for slotless windings in BLDC machines

Yves Perriard, Douglas Martins Araujo, Guillaume Paul-André Burnand

Slotless windings are commonly used in small size high-speed electrical brushless DC machines. Unlike slotted windings, forced to follow slots direction, slotless windings can be freely arranged in the airgap. This represents several opportunities for opti ...

2018

Speed and Stability Limits for High-Speed Bearingless Disc Drives

Yves Perriard, Douglas Martins Araujo, Juan Patricio Tomás Peralta Fierro

Increasing material costs and emerging applications have steered research trends towards compacter and therefore faster drives. The arising challenges of miniaturization have made contactless magnetic levitation increasingly attractive, which offer practic ...

IEEE2018

Electrical machines winding

Yves Perriard, Douglas Martins Araujo, Guillaume Paul-André Burnand

2018

Very-High-Speed Permanent Magnet Motors: Mechanical Rotor Stresses Analytical Model

Yves Perriard, Douglas Martins Araujo, Guillaume Paul-André Burnand

In the context of the development of a 500’000 rpm miniaturized permanent magnet motor, a 3D analytical model for the assessment of mechanical stresses is presented. The significant mechanical stresses and thermal constraints encountered at such speeds are ...

2017

Sensorless Method with Parameter Identification Applied to a Bistable Fast Linear Switched Reluctance Actuator for Textile Machine

Yves Perriard, Douglas Martins Araujo, Faguy Tamwo Simo

This paper provides a sensorless method to control the position of keys passing through a linear actuator used in an industrial textile machine. The presented method describes how to find out the position of the key using two cascading discrete Kalman filt ...

2017

Modeling, Design, and Manufacturing of Microfabricated Coils With High Inductance Density

Yves Perriard, Yoan René Cyrille Civet, Douglas Martins Araujo, Florian Louis Copt, Jasha Poliakine

This paper addresses the design and manufacturing of small scale square planar coils with inductance densities ranging from 2 to 19 miH.mm-2. The design strategy is based on both analytic formulas and finite element method (FEM). Two different manufacturin ...

Institute of Electrical and Electronics Engineers2017

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General Sensorless Method with Parameter Identification and Double Kalman Filter Applied to a Bistable Fast Linear Switched Reluctance Actuator for Textile Machine

Yves Perriard, Douglas Martins Araujo, Faguy Tamwo Simo

INST ELECTRICAL ENGINEERS JAPAN2019

Force and Torque Model of Ironless Passive Magnetic Bearing Structures

Yves Perriard, Douglas Martins Araujo, Leopoldo Rossini, Guzmán Borque Gallego

IEEE2019

Speed and Stability Limits for High-Speed Bearingless Disc Drives

Yves Perriard, Douglas Martins Araujo, Juan Patricio Tomás Peralta Fierro

IEEE2018

Sensorless Method with Parameter Identification Applied to a Bistable Fast Linear Switched Reluctance Actuator for Textile Machine

Yves Perriard, Douglas Martins Araujo, Faguy Tamwo Simo

2017