Title

A Hybrid Observer for the Full-speed-range Sensorless Control of Interior Permanent Magnet Motor Drives

Document Type

Conference Proceeding

Publication Date

7-2014

Publication Title

IEEE Xplore

Conference Name

2014 IEEE Transportation Electrification Conference and Expo (ITEC)

Abstract

This paper presents a method for the sensorless control in full speed range for an interior permanent-magnet synchronous motor (IPM). At standstill and very low speed region, high frequency (HF) injection technique is used to detect the rotor initial position. A hybrid observer is applied to realize a smooth transition from low to high speed. When the rotor speed goes up to a certain value where back EMF can provide adequate information, a back EMF observer will dominate. The hybrid observer is verified through simulation and experimental results using a three-phase 1-kW IPM motor drive.

Comments

https://doi.org/10.1109/ITEC.2014.6861773

Rights Statement

Copyright © 2014, IEEE

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