%A"Multon, B" %D1994 %I; Ecole Normale Superieure de Cachan, 94 (France) %2 %J[] %K42 ENGINEERING, ELECTRIC MOTORS, INVERTERS, POWER SUPPLIES, CONTROL SYSTEMS, COMPUTERIZED SIMULATION, FINITE ELEMENT METHOD, TORQUE, DESIGN, MAGNETIC FIELD CONFIGURATIONS, MAGNETIC FLUX %PMedium: ED; Size: 280 pages %TDesign and electronic power supply of double salience variable reluctance machines; Conception et alimentation electronique des machines a reluctance variable a double saillance %XThis work deals with the optimization of double salience variable reluctance motors with electronic switching. It includes the control laws, the electromagnetic structure and the direct and indirect self-driving sensors. The first chapter presents the state-of-the-art of double salience reluctance machines, their characteristics, their inverters and the evolutions of their electromagnetic structure. Chapters 2 and 3 treat of the optimization of power supplies and of the electromagnetic structure, respectively. Finally, the last chapter treats of original solutions of position measurement for the self-control, one using a variable reluctance sensor, and the other using an indirect sensor. The impact of the motor characteristics on the power supply has been analyzed with the optimization of the control laws in permanent regime and low torque undulation regime. The influence of the motor structure geometry on the electromagnetic characteristics has been studied using analytic methods coupled with punctual finite-element calculations. Using a particular example, a self-oscillating power supply mode has been implemented in order to reduce the losses and the electromagnetic pollution. (J.S.) %0Thesis/Dissertation %NFRNC-TH-6320;TRN: FR0504135 %1 %CFrance %Rhttps://doi.org/ TRN: FR0504135 FR %GFrench