J. Phys. III France
Volume 4, Numéro 3, March 1994
Page(s) 531 - 541
DOI: 10.1051/jp3:1994100
J. Phys. III France 4 (1994) 531-541

A state variables method for the optimization of electrical machines. Application to the acceleration of an inertia

M. Poloujadoff and Z. Amine Es-Sbai

Université Paris VI, Laboratoire d'Electrotechnique, El-Tour 22-12, 4 place Jussieu, 75251 Paris Cedex 05, France

(Received 2 August 1993, accepted 8 December 1993)

The object of the paper is to define and illustrate a method to "synthetize" a motor before optimizing it. The example is the starting of an inertia from rest to full speed by switching on a squirrel cage machine ; supply voltage and frequency are kept constant during starting. It is shown that there are only seven independent variables, and that there is no attainable minimum of the starting time.

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