Centre National De La Recherche Scientifique

Electricite De France

Institut National Polytechnique De Toulouse

Centre National De La Recherche Scientifique-cnrs

Ecole Centrale De Lyon

Supergrid Institute

Philippe Ladoux

Yves Neau

Pascal Maussion

Florent Morel

Yvan Lefevre

Olivier Pateau

Gilbert Manot

Piotr Dworakowski

Caroline Stackler

Thomas Lagier

Provided is an induction heating method implemented in a device for heating a metal part, the device including magnetically coupled inductors. Oscillating circuits of the device have at least approximately the same resonance frequency, each inverter is controlled by a control unit to vary amplitude and phase of current passing through the corresponding inductor, the device also including a means for determining said current and an actual temperature profile of said part. The method includes: a) comparing said actual temperature profile with a reference temperature profile and calculating a reference power density profile; b) calculating target currents which the inverters must produce in order for the currents of the inductors to reach suitable target values; c) determining the currents passing through the inductors to compare said currents with said target values and determine correction current deviations, and sending correction instructions to said control units in accordance with said current deviations.

Induction heating method implemented in a device including magnetically coupled inductors

Growing community of inventors

Dremil Lafage, France

Philippe Ladoux