A hybrid observer for the full-speed-range sensorless control of interior permanent magnet motor drives

Author

Yu Li ; Taylor, Allan ; Bai, Kevin

Author_Institution

Dept. of Electr. & Comput. Eng., Kettering Univ., Flint, MI, USA

fYear

2014

fDate

15-18 June 2014

Firstpage

1

Lastpage

5

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.

Keywords

observers; permanent magnet motors; rotors; sensorless machine control; synchronous motor drives; HF injection technique; IPM synchronous motor drive; back EMF hybrid observer; high frequency injection technique; interior permanent magnet synchronous motor sensorless control; power 1 kW; rotor initial position detection; smooth transition; Hafnium; Observers; Permanent magnet motors; Position measurement; Rotors; Sensorless control;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Conference and Expo (ITEC), 2014 IEEE

Conference_Location

Dearborn, MI

Type

conf

DOI

10.1109/ITEC.2014.6861773

Filename

6861773