Valeo Systemes De Controle Moteur

Arts

Valeo Siemens Eautomotive France Sas

Antoine Bruyere

Boris Bouchez

Pierre-Alexandre Chauvenet

Xavier Kestelyn

Eric Semail

Wided Zine

Paul Sandulescu

Fabien Meinguet

A method for determining a direct inductance and a quadrature inductance of an electrical machine is included. The method includes controlling the electrical machine so that a stator generates a first magnetic field rotating at a first rotation frequency to rotationally drive a rotor of the electrical machine, and a second magnetic field that varies periodically at a second frequency for measuring a portion of the phase currents flowing through the stator windings of the electrical machine during controlling of the electrical machine. The method further includes determining an amplitude spectrum of a given electrical quantity determined based on a portion of the phase currents, searching in the amplitude spectrum for a peak present at a frequency that is dependent on the second frequency, determining an amplitude of each peak found, and determining the direct inductance and the quadrature inductance from the amplitudes of two peaks found.

Method for determining a direct-axis inductance and a quadrature-axis inductance of an electric machine, corresponding computer program and device

The invention relates to a method for discharging at least one capacitor () of an electric circuit (), said electric circuit () also comprising: an electric stator winding () of a polyphase rotary electric machine, said winding () comprising a plurality of coils () which each form a stator phase and which are not being coupled to one another; and a switching system () disposed between the capacitor () and the electric stator winding () and comprising a plurality of controllable switching cells (). According to the method of the invention, the coils () are electrically powered by the capacitor () by means of the switching system (), of which the switching cells () are controlled such that the homopolar electric current passes through the electric stator winding ().

Method for discharging at least one capacitor of an electric circuit

The rotary drive system includes: a direct voltage source (); an electric motor () having an axis of rotation (A), and including independent phases having directions about the axis of rotation; an inverter () for connecting each phase to the direct voltage source (); and a control device () for supplying a command to the inverter (). The control device includes: elements () for selecting a formula from predefined formulas, each predefined formula being intended to calculate either a homopolar voltage set-point, or a homopolar current set-point; elements () for determining a set-point intended to apply the selected formula to determine, according to the formula selected, either a homopolar voltage set-point, or a homopolar current set-point, and elements () for determining a command intended to determine the command of the inverter () based on the set-point determined.

Rotary drive system, method for controlling an inverter and associated computer program

Method of configuring a rotating electric machine () stator (), comprising the following steps:

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Evequemont, France

Antoine Bruyere