NDLI: A new full-speed range direct torque control strategy for induction machine

Content Provider	IEEE Xplore Digital Library
Author	Jia-Qiang Yang Jin Huang
Copyright Year	2004
Description	Author affiliation: Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China (Jia-Qiang Yang; Jin Huang)
Abstract	The large torque ripple exists in induction machine based on conventional direct torque control (DTC), especially at a low speed. On the basis of conventional DTC, the paper provides a new control strategy that can reduce the torque ripple. A full-speed range flux model is deduced. The fuzzy logic idea is adopted in the strategy in order to further improve the torque response and decrease the torque ripple, so a full-speed fuzzy model DTC (FSFDTC) strategy is presented based on the full-speed flux model. In the FSFDTC strategy, the stator flux angle, the stator flux error, and the torque error are reasonably fuzzified into several fuzzy subsets to optimize the selection of the voltage vector. The strategy is implemented with a single board microcomputer that uses TMS320LF2407A DSP. The experimental results illustrate that the torque response is improved, and torque ripple is effectively decreased. The system has a better dynamic and steady performance in full-speed range.
Starting Page	568
Ending Page	573
File Size	334084
Page Count	6
File Format	PDF
ISBN	0780384032
DOI	10.1109/ICMLC.2004.1380756
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-08-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Torque control Induction machines Stators Pulse width modulation inverters Voltage Switches Equations Fuzzy logic Equivalent circuits Frequency estimation
Content Type	Text
Resource Type	Article

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