Publication

Torque Computation With the Isogeometric Mortar Method for the Simulation of Electric Machines

Publications associées (39)

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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

This work is part of the innovative "Active Generator" (AG) project. AG is a concept that suggests a new arrangement of the turbine-generator line of a high power utility (a few hundred of MW) in order to de-synchronize the rotation speed of the turbine-ge ...

EPFL2012

A BLAC Motor Drive for EPS System Application

Romain David Besuchet

EPS systems are more and more used in automotive application to save energy and create a more flexible tool for driver. A BLAC motor has been designed in the Prof. Shen's Laboratory and has a very sinusoidal waveform. In order to avoid the detent torque, a ...

2011

A New Passive Methodology for Reducing the Noise in Electrical Machines: Impact of Some Parameters on the Modal Analysis

Dimitri Torregrossa, Christophe Espanet

This paper presents a 3-D finite-element modal analysis to reduce the acoustical power radiated by a brushless permanent-magnet synchronous machines and avoid any resonance phenomena. The method is able to analyze the impact of some design parameters on al ...

2010

Start-up and Synchronization of a Variable Speed Pump-Turbine Unit in Pumping Mode

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

This paper presents the start-up and synchronization procedures of a variable-speed pump-turbine unit of 250 MW in pumping mode. These procedures applied to a doubly-fed induction motor-generator with three-level voltage source inverters VSI cascade in the ...

2010

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This paper deals with the modeling and control of a magnetically levitated planar motor. The actuator considered has moving coils and stationary magnets. The principal objective is to develop a model which can be implemented in simulation. Therefore, the d ...

2009

Industrial applications often require two (or more) variable speed electric drives, which have to be controlled independently. An example is a centre-driven two-motor winder, where ac machines are traditionally supplied from their individual three-phase vo ...

IEEE2008

Recent research has shown that it is possible to independently control two three-phase induction machines while supplying them via a single five-leg voltage source inverter (VSI). In such a two-motor drive system one phase of each motor is connected to a c ...

IEEE2007

In recent years the use of solid state frequency converters is rapidly increasing in the industrial and power plants where electric machines are installed, since it allows variable speed operations for the electric system, thus becoming a key factor which ...

EPFL2006

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The paper presents a method to determine hysteresis losses in synchronous permanent magnet (PM) motors. The method comprises four steps: (1) experimental determination of the B-H loop, (2) analytical modeling of the B-H loop by applying different models, ( ...

2006