NDLI: Speed sensorless stator flux oriented control of three-level inverter-fed induction motor drive based on fuzzy logic and sliding mode control

Content Provider	IEEE Xplore Digital Library
Author	Yongchang Zhang Jianguo Zhu Wei Xu Jiefeng Hu Dorrell, D.G. Zhengming Zhao
Copyright Year	2010
Description	Author affiliation: Faculty of Engineering and Information Technology, University of Technology Sydney, NSW 2007, Australia (Yongchang Zhang; Jianguo Zhu; Wei Xu; Jiefeng Hu; Dorrell, D.G.) \|\| State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, China (Zhengming Zhao)
Abstract	A novel simplified stator flux oriented control (SFOC) for three-level inverter-fed induction motor drive is proposed to achieve high performance torque control in both steady state and transient conditions. Sliding mode control (SMC) is designed, in stead of conventional PI controller, to obtain the continuous commanding voltage vectors. The speed accuracy and dynamic tracking performance, as well as robustness to external disturbance, are improved by using fuzzy logic control (FLC). A speed adaptive flux observer with novel gain and load torque observation is introduced to improve the dynamic performance of speed estimation. The issue of large starting current in SFOC is addressed, and a strategy with pre-excitation and ramp function of commanding stator flux is proposed to solve this problem. By utilizing the redundant states of small vectors, the neutral point voltage fluctuation of three-level inverter is kept within a certain range. Experimental results prove that the sensorless three-level inverter-fed IM drive exhibits excellent dynamic performance and steady-state accuracy over a wide speed range.
Starting Page	2932
Ending Page	2937
File Size	1320514
Page Count	6
File Format	PDF
ISBN	9781424452255
ISSN	1553572X
DOI	10.1109/IECON.2010.5675064
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stators Torque Rotors Observers Robustness Voltage control Niobium
Content Type	Text
Resource Type	Article

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