Concept

Motor controller

Publications associées (258)

Avoiding Feedback-Linearization Singularity Using a Quotient Method -- The Field-Controlled DC Motor Case

Feedback linearization requires a unique feedback law and a unique diffeomorphism to bring a system to Brunovsk´y normal form. Unfortunately, singularities might arise both in the feedback law and in the diffeomorphism. This paper demonstrates the ability ...

2012

Proprioceptive Coupling within Motor Neurons Drives C. elegans Forward Locomotion

Matthieu Wyart, Xinyu Liu

Locomotion requires coordinated motor activity throughout an animal@s body. In both vertebrates and invertebrates, chains of coupled central pattern generators (CPGs) are commonly evoked to explain local rhythmic behaviors. In C. elegans, we report that pr ...

Elsevier2012

Experimental changes in bodily self-consciousness are tuned to the frequency sensitivity of proprioceptive fibres

Olaf Blanke, Jane Aspell, Estelle Palluel

Several lines of evidence suggest an important implication of proprioceptive signals in bodily self-consciousness. By manipulating proprioceptive signals using muscle vibration, here, we investigated whether such effects depend on the vibration frequency b ...

2012

Gait Assessment in Duchenne Muscular Dystrophy Children during Long-Distance Walking

Kamiar Aminian, Anisoara Ionescu, Raluca Lidia Ganea

The aim of this study was to investigate the alteration of the gait pattern in 25 children with Duchenne muscular dystrophy, using body-worn inertial sensors during a long walking distance. Normalized spatiotemporal gait parameters and their variability we ...

2012

Cutting torque and tangential cutting force coefficient identification from spindle motor current

Paul Xirouchakis, Saurabh Aggarwal, Nenad Nesic

This article presents an enhanced methodology for cutting torque prediction from the spindle motor current, readily available in modern machine tool controllers. This methodology includes the development of the spindle power model which takes into account ...

Springer-Verlag2012

A Practical Solution to Mitigate Vibrations in Industrial PM Motors Having Concentric Windings

Dimitri Torregrossa, Luc Burdet, Christophe Espanet

Industry applications involving torque brushless dc motors require high efficiency over a large speed range. In order to achieve such specifications, flux weakening is necessary, which could lead to relative high electromagnetically induced vibrations and ...

Ieee-Inst Electrical Electronics Engineers Inc2012

Method for a switching loss reduction in PM drives

Andreas Gassner

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

In-field objective evaluation and analysis in ski jumping using inertial sensors

Julien Chardonnens

Ski jumping, a prestigious Olympic discipline, has been constantly evolving. Over the years, the biomechanics fundamentals of this highly technical sport have been intensively documented by investigating the jump timing, kinematics, dynamics and motor cont ...

EPFL2012

Optimization of the Start-up Time of a Variable Speed Pump-Turbine Unit in Pumping Mode

Jean-Jacques Simond, Christophe Nicolet, Basile Kawkabani, Yves Pannatier

This paper presents the start-up and synchronization procedures of large variable- speed pump-turbine units in pumping mode. These procedures applied to a doubly-fed induction motor-generator with three-level voltage source inverters VSI cascade in the rot ...

2012

Transient Recovery Voltages in Vacuum Circuit Breakers Generated by the Interruption of Inrush Currents of Large Motors

Mario Paolone, Carlo Alberto Nucci

The switching of medium voltage electrical motors is typically realized by means of vacuum circuit breakers (VCBs) essentially in view of their elevated number of switching cycles. As known, switching of VCBs generates important transient recovery voltages ...

2011

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