Thales

Safran Electrical & Power

Stéphane Guguen

Eric Ravindranath Dubois

Hocine Kherbouchi

Frédéric Lacaux

Arnaud Dal

Damián Andrade Alfonseca

Tony Teixeira

Joël Devautour

Amira Maalouf

Thomas Girier

Tony Texeira

Bruno Sadeg

Kamel El Koraichi

Damian Andrade

Ludovic Lupinski

Sophie Lentilhac

An inductive filtering device includes a magnetic core at least one electrical cable wound around the magnetic core so as to form at least one turn, the electrical cable being intended to convey an electrical signal possessing at least one undesirable AC component superposed on a fundamental frequency of the electrical signal, and an electrically conductive screen that is electrically insulated from its environment, the screen being placed between the magnetic core and the electrical cable so as to allow, in the screen, via electromagnetic induction, a current to be generated the frequency of which is higher than the fundamental frequency, the screen being configured so as not to allow a current to flow in a direction parallel to that of the one or more turns formed by the winding of the electrical cable around the magnetic core.

Inductive filtering device limiting heat generation

An inductive filtering device includes a plurality of grouped electrical conductors and at least two toric magnetic cores, each formed around a central void, the two magnetic cores having different magnetic lengths, the electrical conductor being wound together around both magnetic cores by passing through the central voids of both magnetic cores.

Inductive filtering device and electrical architecture implementing the inductive filtering device

A filtering of a load in an electrical architecture is provided. The load is equipped with power supply terminals allowing it to be connected to an electrical line of the architecture. The electrical architecture comprises, in addition to the connection to the electrical line and associated with each of the power supply terminals, an insulated electrical conductor connected, at a first of its ends, to the terminal under consideration, and not connected at a second of its ends.

Supply of power to a load in an electrical architecture

A protective device intended to protect a power converter, the protective device includes a set of at least one sensor, each sensor in the set of at least one sensor making it possible to deliver a measurement representative of the instantaneous current delivered at the output of a power converter on a phase in the set of at least one phase, a protective device receiving the measurement representative of the instantaneous current delivered by the set of at least one sensor and connected to a control device and to the power converter such that the commands delivered by the control device are transmitted to the power converter via the protective device, the protective device being configured to inhibit the commands delivered by the control device when the absolute value of the measurement representative of the instantaneous current and delivered by at least one sensor in the set of at least one sensor exceeds a predetermined first threshold Ssuch that the power switches of the power converter are kept in the off state.

Protective device for a power converter, power conversion device

An architecture for an aircraft comprises two air-conditioning systems, two converters, each intended to supply one of the air-conditioning systems, and at least one first electric machine which starts up a first main engine of the aircraft. The electrical architecture is configured such that the two converters can together supply the first electric machine. A method of operating the architecture is also provided.

Electrical architecture for an aircraft, aircraft comprising the architecture and method for operating the architecture

A method and device for transmitting data reliably to at least one item of equipment is provided, wherein: from its initial clock H, an item of equipment generates at least one first clock Hfrom a rising edge of the initial clock Hwith a frequency Fand a second clock Hfrom a falling edge of the initial clock H, with a frequency F, the item of equipment: reads the received data using at least one first rising edge of Hand one falling edge consecutive to the first rising edge of H, then reads the received data using a first rising edge of Hand a falling edge consecutive to the first rising edge of H, the four clock edges used being consecutive by 2F, decodes at least the four messages using an error-correcting code, when at least one decoded message is correct, it uses the information contained in this message to drive a device linked to said item of equipment.

Method and system for transmitting data reliably

An electrical architecture for controlling inverters and to an aircraft includes the architecture. The electrical architecture comprises: a plurality of converters capable of operating independently of one another, each converter being intended to power a charge, associated with each converter/charge pair: a charging loop, comprising at least one sensor measuring a parameter that is characteristic of the operation of the charge, an operation control module, receiving an operation setpoint of the charge and information originating from the operation sensor, the operation control module controlling a current setpoint of the considered converter so that the information originating from the operation sensor follows the operation setpoint. The operation control module is common to the converters.

Electrical architecture for controlling converters and aircraft comprising the architecture

Method and system for synchronizing a plurality of pieces of equipment, wherein it includes at least the following steps: in each equipment generating the command signal, computing a value of the difference &#x394;H between a reference-clock value Hm and the local clock Hi of an equipment, on detecting a phase shift &#x394;H between the reference-clock value and the value of a local clock, when the value of the phase shift &#x394;H between the local clock and the reference clock corresponds to one refresh cycle of the reference clock Hm, a corrected clock time Hic is defined by repeating a number of the clock signal of given parity if the value of the local clock is early and a corrected clock time is defined by skipping one number of the clock signal of opposite parity to the first parity if the local clock value is late, when the value of the phase shift &#x394;H is higher than one refresh cycle, the method resets the reference time, a corrected value of the clock in each equipment is used to emit the command signal.

Synchronizing method and system

A dynamic limitation device of a dynamic output parameter of an electric motor capable of receiving a working setpoint comprises: a generator of a dynamic maximum current proportional to a first working setpoint of the motor to supply the motor to generate a rotating torque of a shaft of the electric motor as a function of the first setpoint, a first estimator of a first dynamic output parameter of the electric motor, and a first dynamic limiter of the first output parameter of the motor, which comprises: a first comparator of the value of the first estimated parameter with a predefined maximum value of the first parameter, a first corrector to generate a first correction current, the value of which depends on the result of the comparison to be added to the dynamic maximum current to supply the motor. A dynamic limitation method implementing this device is provided.

Dynamic limitation device and dynamic limitation method implementing a device of this kind

A vector control driving device is provided for an electric motor receiving an operating setpoint, with stator windings receiving a driving current and producing a rotating magnetic field, the windings generating a voltage at terminals of the motor, a rotor producing a magnetic field to follow the rotating magnetic field, the device generating current in a vector domain, and configured to carry out a transform of the current from the vector domain to a real domain allowing for generation of the driving current, and configured to carry out an inverse transform of a parameter measured in the real domain on the stator windings into a transform of the parameter in the vector domain, and comparing the value of the inverse transform of the parameter with a predefined maximum parameter value, which can drive the generating of the current in the vector domain. An automatic and adaptive defluxing method is provided.

Automatic and adaptive defluxing device and method implementing such a device

A modular rack intended for an aircraft includes a set of electrical machines each equipped with a position sensor including inverters, a supervision member, a first communication channel to transmit to each of the inverters the inverter setpoint determined by the supervision member, and a second communication channel to transmit a position information item to each of the inverters, each of the inverters including a way to generate an electrical signal as a function of the inverter setpoint and of the position information transmitted by the supervision member. The first and second communication channels include a single link for the supervision member and the inverters, and transmitting both the inverter setpoints and the position information items.

Growing community of inventors

Chatou, France

Stéphane Guguen