Universite Dé Lorraine

Centre National De La Recherche Scientifique

Labinal Power Systems

Messier-bugatti-dowty

Institut National Polytechnique De Lorraine

Universite Henri Poincare

Messier-bugatti Inc.

Farid Meibody-Tabar

Serge Lionel Pierfederici

Babak Nahid-Mobarakeh

Sebastien Vieillard

Pierre-Yves Liegeois

Francois-Noel Leynaert

François-Noël Leynaert

Bernard Davat

Regis Bernard Albert Meuret

Sébastien Vieillard

Jean-Philippe Martin

Babak Nahid Mobarakeh

Pierre Magne

Sami Zaim

Regis Bernard Meuret

Serge Pierfederici

A method of stabilizing a DC electricity network, the network including a DC voltage source powering electrical loads that are connected in parallel to terminals of the voltage source and each of which is to receive a current or voltage setpoint. The method stabilizes the network by regulating setpoints applied to the loads by a virtual stabilization impedance generated at terminals of each load, the virtual impedances being dimensioned to stabilize the network in desired operating points and in given configurations of the network including a state in which at least one load is inactive or has failed and a state in which the stabilization of a load is inactive. Each virtual impedance is generated by a non-linear regulation loop acting on the setpoint for the corresponding load.

Stabilizing a DC electricity network

A method of controlling a permanent magnet synchronous machine including a stator and a rotor. The method includes determining an estimated position of the rotor, and determining a second in-phase voltage setpoint that, in alternation, is equal either to a first in-phase voltage setpoint or else to the first in-phase voltage setpoint plus a predetermined periodic signal. The determining an estimated position of the rotor includes determining a coupling term, determining a speed of rotation of the rotor as a function of the coupling term, and determining the estimated position of the rotor by integrating the speed of rotation of the rotor.

Control of a permanent-magnet electric machine

The invention relates to an active filter device for a power supply comprising a source having a source of current iand a voltage V, a power converter presenting an input inductor L, a power switch T controlled by a chopper signal and delivering an output voltage V, and a load, the device being characterized in that it includes an active filter converter () for generating at its output a compensation current minus harmonics of the source current due to the chopping, in response to an input signal representative of the chopping of the power converter.

Active filtering device for a power supply

The invention relates to an actuator including an electrical machine. The electrical actuator () comprising: a polyphase machine (); at least one connection member () for powering the actuator from at least one network () delivering alternating current; and first and second buses () connected in parallel between each connection member () and the machine () for applying frequency control thereto. Each inverter () comprises a plurality of arms each having two controlled switches, each phase of the machine () being connected both to the two switches of an arm of the first inverter () and also to the two switches of an arm of the second inverter (). The actuator further comprises controlled connection and disconnection means interposed between each bus () and each connection member. The invention is applicable to actuators used in aviation.

Electric actuator including two current-controlled voltage inverters powering an electrical machine, and reconfigurable in the presence of a defect

Growing community of inventors

Villers les Nancy, France

Farid Meibody-Tabar