2005•Unpublished venueRequires access

Sensorless control for all types of synchronous motors using an on-line parameter identification

Shunsuke Ichikawa, M. Tomita, Shinji Doki, S. Okume

Abstract

In this paper, I propose an on-line parameter identification method for all types of synchronous motors: especially, three main types, surface permanent magnet synchronous motors, interior permanent magnet synchronous motors, and synchronous reluctance motors. And sensorless control of synchronous motors using these identified parameters is realized. The proposed estimation method is based on an Extended EMF model, so the sensorless control method can be applied for all types of synchronous motors. And this identification method is based on the motor model that takes into account magnetic saturation, motor parameters can be identified in spite of generating magnetic saturation. The proposed method is verified by experiments of three kinds of synchronous motors.

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Key concepts: Synchronous motor, Permanent magnet synchronous motor, Control theory (sociology), Identification (biology), Computer science, Control engineering, Saturation (graph theory), Line (geometry)