Ultra Low Loss Fully Processed electrical steels,
 pushing machine performance to a higher level

Prepared and presented by Sigrid Jacobs¹, with the cooperation of Rubens Takanohashi², Sebastiao Paolinelli³, Emmanuel Attrazic⁴, Jean-Paul Gras⁵ and Bart Soenen⁶

¹⁾ArcelorMittal Electrical Steel Product Development Management, Guldensporenpark 78, BE-9820 Merelbeke, Belgium

²⁾ArcelorMittal Technical Assistance Electrical Steels, Av. Brigadeiro Faria Lima, 1355 - 20° Andar Jardim Paulistano, CEP 01452919  São Paulo-SP, Brazil

³⁾ArcelorMittal Research and Development Electrical Steels, Praça 1° de Maio, 9 Centro 35180-018 Timóteo, MG, Brazil

⁴⁾ArcelorMittal Laboratory Electrical Steels, Route du Fau de Peyre, Saint-Chély d’Apcher, France

⁵⁾ArcelorMittal Technical Assistance Electrical Steels, Route du Fau de Peyre, Saint-Chély d’Apcher, France

⁶⁾ArcelorMittal Research and Development Industry Products, F 13767, Fos-sur-mer, Cedex

Introduction

 

The fundamental requirement of electrical motors is to produce as much force/torque as possible for a given machine volume/weight, whilst requiring as little energy as possible.  This force is generated through the interaction of current-carrying systems (magnets) and can be shown to relate to B²A with A the involved area and B the magnetic flux density over that area [1].  The ferromagnetic materials used for the machine core, determine how much flux can be produced and therefore have a clear impact on the machines’ ability to develop torque.  Unfortunately ferromagnetic materials do not only have this torque multiplication advantage, but generate losses during the involved magnetisation processes.

 

The following paper discusses the solutions provided by ArcelorMittal’s (AM) product range of Electrical Steels, the result of a continuous optimisation process, searching for the state of the art balance in the electrical steel’s energy generation potential and its inevitable losses.  More specifically Fully Processed Electrical Steels (FPES) which have been developed for enhancing the performance of electrical machines will be shown.