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

Schneider Electric Industries Sas

Bruno Beranger

Daniel Chatroux

Sebastien Carcouet

Simon Tian

Julien Dauchy

Mathias Gerard

Sébastien Carcouet

Robert Cittadini

Oleg Garelli

A flying device includes a mechanical coupling that is designed to cooperate with a cable of an electrical distribution line in such a way that the flying device remains secured to the cable in a rest position.

Flying device

The invention concerns an electrical system that comprises: &#x2014;an electrical charge (); &#x2014;a decoupling capacitor (); &#x2014;a DC voltage power supply system, comprising first and second terminals (), including: &#x2014;a DC voltage source () comprising first and second poles; &#x2014;a first branch including a first contactor (); &#x2014;a second branch including first and second switches () and an inductor () connected in series in order to selectively connect the DC voltage source to the first terminal () of the power supply system; &#x2014;a unidirectional conducting device () for conduction from the second terminal of the DC power supply system to a connection node () between the second switch () and said inductor (); &#x2014;a control circuit () comprising &#x2014;a mode for supplying electrical load (); &#x2014;a mode for charging the decoupling capacitor ().

DC voltage supply system configured to precharge a smoothing capacitor before supplying a load

An accumulator battery, comprising at least: first and second stages electrically connected in series, each stage including at least first to third accumulators electrically connected in parallel. There are at least first and second current limiters via which the first to third accumulators of said first stage are connected in parallel and via which the first to third accumulators of said second stage are connected in parallel.

Accumulator battery protected against internal short circuits

A storage battery comprises a first branch and a second branch, each of which has a first cell and a second cell, the first and second cells being connected in series, and a first switch for connecting the first cell from the first branch and the first cell from the second branch in parallel and connecting the second cell from the first branch and the second cell from the second branch in parallel. The first switch has a cutoff threshold selected to conduct current when one of the cells forms an open circuit.

Low-loss storage battery

The coupling device comprises a transformer having a primary winding in series with a two-way switch controlled via an optocoupler and a three-position selector switch by a control circuit. In standby mode, the switch is connected to an oscillator defining a switching frequency (49 kHz) ensuring power supply of the control circuit, which circuit is able to detect the presence of a carrier on the transformer secondary winding. In receipt mode, the switch is closed and the control circuit analyzes the modulated information received on the transformer secondary winding. In transmission mode, the control circuit causes switching of the switch at the information modulation frequency (132 khz), performing both power supply of the control circuit and transmission of the information.

Growing community of inventors

Saint Martin d'Uriage, France

Bruno Beranger