Sensorless Operation Capability of Surface-Mounted Permanent-Magnet Machine Based on High-Frequency Signal Injection Methods

Author

Lin, T.C. ; Zhu, Z.Q.

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK

Volume

51

Issue

3

fYear

2015

fDate

May-June 2015

Firstpage

2161

Lastpage

2171

Abstract

This paper analyzes the sensorless operation capability of a surface-mounted permanent-magnet (PM) (SPM) machine based on high-frequency (HF) voltage injection techniques. To investigate the machine saliency, the magnetic saturation-induced rotor saliency by PM is experimentally measured and analyzed under various load conditions. Moreover, the influence of cross-saturation and the magnetic polarity identification are also examined. Furthermore, the investigation has considered the resistance-based saliency due to HF eddy-current loss. In order to highlight the effectiveness of the sensorless operation capability, the tests are carried out under different operating conditions.

Keywords

eddy current losses; permanent magnet machines; rotors; sensorless machine control; HF eddy-current loss; HF voltage injection technique; SPM machine; cross-saturation; high-frequency signal injection method; high-frequency voltage injection technique; machine saliency; magnetic polarity identification; magnetic saturation-induced rotor saliency; resistance-based saliency; sensorless operation capability effectiveness; surface-mounted PM machine; surface-mounted permanent-magnet machine; Current measurement; Hafnium; Observers; Rotors; Saturation magnetization; Sensorless control; Brushless ac (BLAC) machine; brushless ac machine; high-frequency (HF) signal injection; high-frequency signal injection; permanent magnet machine; permanent-magnet (PM) machine; rotor and speed estimation; sensorless control;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2014.2382762

Filename

6990573