NDLI: Accuracy improvement of carrier signal injection sensorless control for IPMSM in consideration of inverter nonlinearity

Content Provider	IEEE Xplore Digital Library
Author	Tianhao Wang Bowen Shi Xu, J. Gerada, C.
Copyright Year	2015
Description	Author affiliation: Univ. of Nottingham, Ningbo, China (Tianhao Wang; Bowen Shi; Xu, J.; Gerada, C.)
Abstract	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.
Sponsorship	IEEE
Starting Page	000273
Ending Page	000278
File Size	2032667
Page Count	6
File Format	PDF
e-ISBN	9781479917624
DOI	10.1109/IECON.2015.7392111
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-11-09
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inverters Estimation Frequency estimation Rotors Stators Voltage control Nonlinear distortion Inverter Nonlinearity Sensorless Control Interior Permanent Magnet Machine High Frequency Rotating Voltage Injection
Content Type	Text
Resource Type	Article

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