Performance of Pulsating High-Frequency Current Injection Based Sensorless Control of PMSM

DOI

10.2991/isccca.2013.41How to use a DOI?

Keywords

permanent magnet synchronous motor, sensorless control, pulsating current injection, performance, effect of speed EMF

Abstract

In the paper the principle and performances of the pulsating current injection based sensorless control of permanent magnet synchronous motor (PMSM) are analyzed theoretically and investigated by simulations. In the analyses, the effects of the speed EMF terms and the deviation between the actual d-axis high-frequency current and the command, which results from the limited gain and bandwidth of the current control loop, are all taken into account. It is shown that the pulsating current injection method can achieve stable position estimation in a wide speed range. But appreciable position errors will result at high speeds due to the cross-coupling effects of the speed EMFs and the tracking error between the actual and command carrier current. In order to improve the performance, a modified scheme is proposed. Its validity is confirmed by simulations.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Jianmin Wang
PY  - 2013/02
DA  - 2013/02
TI  - Performance of Pulsating High-Frequency Current Injection Based Sensorless Control of PMSM
BT  - Proceedings of the 2nd International Symposium on Computer, Communication, Control and Automation (ISCCCA 2013)
PB  - Atlantis Press
SP  - 163
EP  - 166
SN  - 1951-6851
UR  - https://doi.org/10.2991/isccca.2013.41
DO  - 10.2991/isccca.2013.41
ID  - Wang2013/02
ER  -