TORQUE CONTROL OF SWITCHED RELUCTANCE MOTOR DRIVES FOR ELECTRIC POWER STEERING

Authors

  • MARCOS GOMILA GONZALEZ
  • JOSE ANTONIO SANCHEZ LOPEZ
  • PERE ANDRADA GASCON
  • BALDUI BLANQUE MOLINA
  • EUSEBI MARTINEZ PIERA
  • JOSE IGNACIO PERAT BENALVIDES
  • MARCEL TORRENT BURGUES

Keywords:

dirección asistida eléctrica, accionamientos con motores de reluctancia autoconmutados, control de par, electric power steering, switched reluctance motor drives, torque control

Abstract

Nowadays, the power steering is a standard device in commercial vehicles. The electric power steering is becoming an alternative to the traditional hydraulic power steering. Right now, the electric drive commonly used in this application is the DC brush motor drive. Today, different electric drives are seen as a future option but the best candidate seems to be the permanent magnet synchronous motor drive. However due to its constructive simplicity, absence of permanent magnets and fault tolerance the switched reluctance motor drive is an alternative that should not be ignored. In this article a switched reluctance motor drive is presented for a rack-type electric power steering for midsize cars with a rack force 10 kN. The drive consists of a switched reluctance motor of four-phase with 8 stator poles and 6 rotor poles fed through an electronic power converter with Power MOSFETs switches, an incremental encoder and digital torque control to minimize torque ripple and to mitigate disturbances that appear when clearing a fault and the drive works with one or two open phases. The drive has been built and tested in the laboratory and experimental results have confirmed its suitability as a drive for power steering.

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Published

2016-05-01

Issue

Vol 90, No 3 (2016)

Section

ARTICULOS

License

Al enviar el artículo para su evaluación y posterior publicación en la revista DYNA, el AUTOR cede de manera no exclusiva los derechos de comunicación pública, reproducción, distribución y venta para su explotación comercial a Publicaciones DYNA SL para un plazo de 50 años y en cualquier lengua y país. El AUTOR se hace responsable frente a Publicaciones DYNA SL de la autoría y originalidad de su obra, así como de todas las cargas pecuniarias que pudieran derivarse para Publicaciones DYNA SL, a favor de terceros con motivo de acciones, reclamaciones o conflictos derivados del incumplimiento de obligaciones por parte del AUTOR.