Schneider Electric Industries Sas

Schneider Electric Industires Sas

Yann Herriot

Alain Dentella

Grace Gandanegara

Dimitrios Ladas

Charles Blondel

Delcho Penkov

Roland Goutay

David Gualino

Mustapha Rahmani

Jean Dobrowolski

Caroline Aubert Guyon

Caroline Guyon-Aubert

Gauthier Leconte

Lionel Dorbais

Sylvain Lechat-Sanjuan

Alain Jaskula

Michel Sacotte

Pierre Lagache

An electric transformer circuit for connecting electrical equipment, such as a renewable energy-based generator or an energy storage system, to an electric grid. The circuit includes a first voltage converter connected to the equipment; a transformer connected to the first converter and a second voltage converter connected to the transformer and the electric grid. The transformer is a weakly coupled transformer, the magnetic coupling between the first coil and the second coil being less than 0.7. The transformer includes a first and second capacitor respectively associated with a first and second coil so as to form, with the corresponding coil, a circuit resonating at frequency f. The electric transformer circuit can be included in an electric installation.

Transformer electrical circuit and installation comprising such a circuit

The invention relates to a method for controlling an electrical microgrid () comprising a renewable power source (), delivering, to the microgrid (), a first power that is controlled by droop control, and capable of synchronously operating in parallel with a synchronous power source (), the synchronous source () being capable of generating a second power that is also delivered to the microgrid (), according to a criterion for the automatic start/stop of said synchronous power source, the method comprising the starting of the synchronous source as soon as the frequency and/or the voltage of the microgrid () are lower than a threshold frequency and/or a threshold voltage, respectively, and the stopping of the synchronous source as soon as the second power is lower than a threshold power.

Control method of an electric microgrid

A method for controlling a virtual generator including at least one renewable power source, an accumulation system including a power and/or energy reserve, an inverter and a control law, the virtual generator delivering an active P/reactive Q electrical power of voltage V and of current I to a microgrid, the voltage V and current I having a frequency f, the active P/reactive Q electrical power controlling, via droop control, the frequency f and the RMS voltage Vof the voltage V, respectively, the method including control of the virtual generator via the control law for which it carries out an adjustment of the active P/reactive Q power delivered to the microgrid, the adjustment being capable of compensating for a variation in the active/reactive power consumed by the microgrid.

Control method of a virtual generator

The invention relates to a method for charging a vehicle battery by induction from a charging device including a charge transmitter including a primary coil Land an inverter capable of supplying the primary coil Lwith an AC supply voltage E. Said device also includes a charge receiver including a secondary coil Larranged in a vehicle. Said method consists of adjusting a frequency f of the power supply voltage (E) to the resonance frequency fo, when a motor vehicle is located in a parking space. Said method comprises the following steps: setting a first power-transmission parameter (E, f); starting an iterative test which consists of: setting a value of a second power-transmission parameter (E, f); varying the second power-transmission parameter (E, f) in a second authorized adjustment range; measuring the power (Pbat) transmitted between the charge transmitter and the charge receiver; determining if the power (Pbat) is no lower than a predetermined operating threshold (PObj); determining if the power (Pbat) increases; ending the iterative test if the transmitted power (Pbat) is higher than the predetermined operating threshold (PObj); setting the power supply voltage (E) in order to reach the measured transmitted power (Pbat), said first and second transmission parameters being set to the previously established value thereof.

Method for charging a vehicle battery by induction

A method for controlling a switch that controls a power supply line of an electric motor from an alternating voltage source, including determination of a switch closing instant (t) starting from a measurement of the derivative of the current carried on the power supply line. A starter system and a computer program product are capable of using this method.

Apparatus and means for progressive motor start based on current derivative synchronisation

The energy conversion system comprises a primary and a secondary modules. The primary module includes input terminals, a primary winding, and a primary capacitor connected to the primary winding and the input terminals. The secondary module includes output terminals, a secondary winding and a secondary capacitor connected to the secondary winding and the output terminals. A current is induced in the secondary winding when the primary and secondary windings are magnetically coupled, the current received between the input terminals flowing through the primary winding. The secondary module comprises a secondary switch electrically connected to the secondary capacitor and the secondary winding, and means for controlling the secondary switch, between a first configuration wherein the current induced in the secondary winding flows up to the output terminals, and a second configuration wherein said induced current flows in a closed loop through the secondary winding and the secondary capacitor.

Energy conversion system, recharging assembly by induction and methods for transmitting and receiving associated data

A method for reconstituting a diagram of an electrical installation including a plurality of electrical elements connected to a power source via protective elements arranged in an electrical panel. The wired electrical elements of the installation are identified using the electrical panel. The tree structure of the electrical connections of the elements identified and the position of each element in the arborescence are automatically determined. An electrical diagram of the installation is deduced using the tree structure of the electrical connections and the position of each element in the arborescence.

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Voiron, France

Yann Herriot