TY - GEN
T1 - Inductance-based position self-sensing of a brushless DC-machine using high-frequency signal injection
AU - Gabriel, Fabien
AU - De Belie, Frederik
AU - Neyt, Xavier
PY - 2012
Y1 - 2012
N2 - Inductance-based self-sensing methods allow to estimate the rotor position by tracking the magnetic anisotropy linked to the rotor. The inductance can be quickly estimated by measuring the response on the injection of high-frequency signals in addition to the signals of normal-operating control. Compared to more conventional permanent-magnet synchronous machines, driving a low-inductance brushless DC-machine presents some issues that must be taken into account: significant inverter nonlinearities, impact of the stator resistance on the inductance estimation, important harmonic content in the magnetic field that leads to errors in the rotor-position estimation. In this paper, we propose a signal-injection solution that removes the stator-resistance impact. A solution to the inverter nonlinearities is also discussed. Experimental results demonstrate the robustness of the control scheme at low and higher speeds.
AB - Inductance-based self-sensing methods allow to estimate the rotor position by tracking the magnetic anisotropy linked to the rotor. The inductance can be quickly estimated by measuring the response on the injection of high-frequency signals in addition to the signals of normal-operating control. Compared to more conventional permanent-magnet synchronous machines, driving a low-inductance brushless DC-machine presents some issues that must be taken into account: significant inverter nonlinearities, impact of the stator resistance on the inductance estimation, important harmonic content in the magnetic field that leads to errors in the rotor-position estimation. In this paper, we propose a signal-injection solution that removes the stator-resistance impact. A solution to the inverter nonlinearities is also discussed. Experimental results demonstrate the robustness of the control scheme at low and higher speeds.
UR - http://www.scopus.com/inward/record.url?scp=84872892636&partnerID=8YFLogxK
U2 - 10.1109/IECON.2012.6389306
DO - 10.1109/IECON.2012.6389306
M3 - Conference contribution
AN - SCOPUS:84872892636
SN - 9781467324212
T3 - IECON Proceedings (Industrial Electronics Conference)
SP - 3682
EP - 3687
BT - Proceedings, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society
T2 - 38th Annual Conference on IEEE Industrial Electronics Society, IECON 2012
Y2 - 25 October 2012 through 28 October 2012
ER -