TY - GEN
T1 - Accuracy improvement of carrier signal injection sensorless control for IPMSM in consideration of inverter nonlinearity
AU - Wang, Tianhao
AU - Shi, Bowen
AU - Xu, John
AU - Gerada, Chris
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015
Y1 - 2015
N2 - In this paper, the work has been developed aiming at reduction of inverter non-linear influences on high frequency carrier voltage injection sensorless control algorithm. For this method, inverter non-linear errors introduce distortions of the motor stator voltage that degrade the estimation performance. The main cause is the deviation of the high frequency voltage vector angle used for the demodulation process of extracting the rotor position from negative sequence of high frequency current response. For sensorless applications where the injection frequency becomes comparable to Pulse Width Modulation (PWM) switching frequency, the command voltage compensation method is prone to fail. In this work, the injected high frequency voltage vector angle for current demodulation is calculated with estimated voltage error Look-up-table (LUT), sensorless position estimation accuracy is enhanced compared to feed-forward compensation technique validated by experiment.
AB - In this paper, the work has been developed aiming at reduction of inverter non-linear influences on high frequency carrier voltage injection sensorless control algorithm. For this method, inverter non-linear errors introduce distortions of the motor stator voltage that degrade the estimation performance. The main cause is the deviation of the high frequency voltage vector angle used for the demodulation process of extracting the rotor position from negative sequence of high frequency current response. For sensorless applications where the injection frequency becomes comparable to Pulse Width Modulation (PWM) switching frequency, the command voltage compensation method is prone to fail. In this work, the injected high frequency voltage vector angle for current demodulation is calculated with estimated voltage error Look-up-table (LUT), sensorless position estimation accuracy is enhanced compared to feed-forward compensation technique validated by experiment.
KW - High Frequency Rotating Voltage Injection
KW - Interior Permanent Magnet Machine
KW - Inverter Nonlinearity
KW - Sensorless Control
UR - http://www.scopus.com/inward/record.url?scp=84973135863&partnerID=8YFLogxK
U2 - 10.1109/IECON.2015.7392111
DO - 10.1109/IECON.2015.7392111
M3 - Conference contribution
AN - SCOPUS:84973135863
T3 - IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
SP - 273
EP - 278
BT - IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015
Y2 - 9 November 2015 through 12 November 2015
ER -