Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Commissariat a L'energie Atomique

Other

Commissariat a L'energie Atomique Et Aux Alternatives

Renault S.a.s.

Decathlon

Davey Bickford

Bubendorff, Societe Anonyme

Ghislain Despesse

Sylvain Bacquet

Eric Fernandez

Yan Lopez

Rémy Thomas

Léandro Cassarino

Jean-Jacques Chaillout

Thomas Jager

Sébastien Boisseau

Sebastien Boisseau

Emmanuel Defay

Xavier Maynard

Mustapha Touhami

Sami Oukassi

Sébastien Carcouet

Leandro Cassarino

Alexandre Paleologue

Benjamin Pollet

Bouhadjar Ahmed Seddik

Vincent Massavie

Yves Fouillet

Jean-François Mainguet

Gaël Pillonnet

Jean-Michel Leger

Alexandre Reinhardt

Franck Vial

Vincent Heiries

Franck Guyon

Jean-Philippe Gros

Andréa Vassilev

Sébastien Brulais

Adrien Morel

Mikael Carmona

Christophe Secouard

Nicolas Dunoyer

Mikaël Carmona

Remy Thomas

Lionel Biard

Bruno Truong

Neil Mathur

François Frassati

Claire Jean-Mistral

Matthieu Boucaud

Baptiste Alessandri

Laurent Vinit

Sylvain Lechat Sanjuan

Romain Guigon

Brice Ivira

Olivier Freychet

Nicolas Garraud

Valentin Breton

Estelle Le Baron

Alexandre-Benoit Duret

Antoine Grisel

Fathia Karoui

This control device is configured to control a converter comprising a piezoelectric element and several switches, and capable of delivering N output voltage(s) from of E input voltage(s), E≥1, N≥1. The control device comprises a module for controlling, during a respective resonance cycle of the piezoelectric element, switching of the switches to alternate phases at substantially constant voltage and phases at a substantially constant charge at the terminals of the piezoelectric element, each cycle comprising first and second half-cycles, a current flowing in one direction in the piezoelectric element during first half-cycle and in an opposite direction during the second half-cycle. The number of substantially constant voltage phases during a cycle is greater than or equal to E+N+2, and each of the half-cycles comprises at least two substantially constant voltage phases.

Electronic device and method for controlling with an additional degree of freedom an electrical energy converter comprising a piezoelectric element, related electronic system for converting electrical energy

The invention relates to an electrical energy converter including an inverter () for obtaining alternative electrical energy from a DC electrical energy source. The inverter includes a switch () having first and second conduction terminals for receiving an AC voltage, the electrical energy converter being suitable for supplying an output electrical energy to a load (). Said converter includes a capacitive circuit () with variable and controllable capacitance, connected between the inverter () and the load (), the control of a modification of said capacitance making it possible to obtain a modification of an electrical output parameter of the converter. The associated system for converting electrical energy includes such an electrical energy converter and a control module () configured for receiving as input a setpoint value of said output electrical parameter (V) of the converter and for controlling the variable capacitance of said capacitive circuit () as a function of said setpoint value.

Electrical energy converter and associated system for converting electrical energy

An energy recovery device including at least one first magnet, able to be set in movement according to a rotational or translational movement; a main magnet, able to be set in rotation about an axis by said at least first magnet; at least one second magnet, fixedly disposed with respect to the main magnet, for determining one or more positions of equilibrium of the latter; at least one conductive coil for transforming a variation of orientation of the main magnet into electrical energy, wherein in a 1st speed or frequency range a coupling of said at least one first magnet and of said main magnet causes the rotation of the latter from at least one position of equilibrium, the oscillations of said main magnet around said at least one position of equilibrium resulting in the creation of an electrical energy in said at least one conductive coil; and for a 2nd speed or frequency range a coupling of said at least one first magnet and of said main magnet causes the rotation of the latter, without oscillations, and this rotation results in the creation of an electrical energy in the coil.

Energy recuperator with wide range of operating speed

An assembly able to deliver an output current, includes N electrical energy storage or production cells of rank i, where N≥2, being able to supply a maximum current Iat all times t; a management circuit for managing the electrical energy storage or production cells, wherein, with the cells being classed according to their rank i in decreasing priority of use, the management circuit comprises means for addressing at least the cell of rank 1 or the cells according to their rank i and according to the following criteria: the cell of rank 1 is addressed on its own as long as it is able to supply the output current I<I; the cell of rank 1 is addressed with additionally a number k of cells that are addressed successively according to their rank i, so as to supply the current Is at all times in discharge mode, the number k being such that 2<k≤N and meeting the following conditions:Σand Σ

Assembly of electrical energy storage or production cells comprising a management circuit for managing the cells

The present description concerns a power converter () comprising: a switch () comprising first () and second () conduction terminals intended to receive a first AC voltage (Vds), a first circuit () for detecting a minimum value reached by the first voltage at each halfwave, and for averaging minimum values over a plurality of halfwaves, and a second circuit () for controlling the switch configured, according to the average of said values, to turn on the switch when the first voltage is substantially null.

Zero voltage switching power converter

This electrical energy converter comprises:

Electrical energy converter with piezoelectric element(s) and switching assistance circuit(s), associated electrical energy conversion electronic system

An electronic control device for controlling a converter that comprises a piezoelectric element and a plurality of switches which are commanded to alternate phases, respectively at substantially constant voltage, and substantially constant charge, across the terminals of said piezoelectric element, the control device comprising:

Electronic device and method for controlling an electric energy converter comprising a piezoelectric element, related electronic system for electric energy conversion

The invention relates to an electrical power-supply system comprising:

Power supply system

An electromagnetic device for converting input mechanical energy into output electrical energy, including a movable element that is able to make a vibratory mechanical movement, a vibration source configured to actuate the vibratory mechanical movement of the movable element, a coil, a magnetic circuit passing through the coil, the coil being configured to generate the output electrical energy when the movable element is making its vibratory mechanical movement, a permanent magnet arranged in the magnetic circuit and able to generate a magnetic flux, referred to as the total magnetic flux (Fm_T), in the magnetic circuit.

Electromagnetic device for converting mechanical energy into electrical energy having a magnetic circuit with two magnetic flux gaps

A method of controlling a battery including a first control circuit and a plurality of modules arranged in series between first and second terminals. Each module includes, between third and fourth terminals, electric cells and switches and a second switch control circuit. The battery further includes at least one first data transmission bus coupling the first control circuit to each second control circuit, the first control circuit including a memory having chained lists stored therein. Each chained list includes elements each including an identifier of one of the electric cells and at least one first pointer designating another element in the chained list.

Battery pack

A battery with switched accumulators, including: a first cell; a plurality of second cells series-connected with the first cell, each first and second cell including: an electric accumulator series-connected with a first switch, a second switch connected in parallel with the accumulator and the first switch, and a first diode, the cathodes of the first diodes being connected to an output node, the anode of the accumulator of the first cell being connected to ground, the anode of the first diode of each second cell being coupled to the cathode of the accumulator by at least one third switch; and a control circuit capable of measuring characteristics of at least certain accumulators and of controlling the first, second, and third switches according to the characteristics.

Battery with switched accumulators

A method of controlling a battery including a first control circuit and a plurality of modules arranged in series between first and second terminals, each module including, between third and fourth terminals, electric cells and switches and a second switch control circuit. The method includes the determination by the first control circuit of a first priority table associated with a battery charge operation and of a second priority table associated with a battery discharge operation, the first priority table including a first classification of the priorities of the electric cells for the charge operation and the second priority table comprising a second classification of the priorities of the electric cells for the discharge operation.

Electrical accumulator battery

A method for controlling a power supply device of an electrical system, the device including at least one separate power supply assembly per phase of the electrical system, each power supply assembly including at least one battery pack defined by a state parameter and provided with at least one battery to supply a control voltage to the phase to which it is connected, taking into account at least one setpoint value. The method includes executing at least one correction block receiving as input each setpoint value and the state parameter of each battery pack of the power supply assemblies of the system, and for each power supply assembly, the correction block is configured to determine a correction value to be applied directly or indirectly to its setpoint value.

Method for controlling a power supply device of an electrical system

The invention essentially consists of a system () for transmitting acoustic power, which will determine the optimum frequency and the optimum electrical load without data communication being established beforehand with the receiver ().

Method for operating an acoustic transmission system so as to optimize transmitted power

A method of controlling an electric system including electric cells. The method includes the steps of: a) determining a first (second) priority table including first (second) cell priority levels for a system charge (discharge) operation; b) determining the average current exchanged by each cell over a time window according to the cell implementation number in a cell connection sequence; c) determining a classification of the cell implementation numbers by increasing or decreasing order of the average current; d) assigning the implementation numbers according to the order of the classification to the cells by increasing or decreasing number of the priority levels of the first or second priority table; and e) connecting or disconnecting the cells according to the order of the assigned implementation numbers.

Electrical system comprising switched cells and method for controlling such a system

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Saint Egreve, France

Ghislain Despesse