NDLI: A Class of Speed-Sensorless Sliding-Mode Observers for High-Performance Induction Motor Drives

Content Provider	IEEE Xplore Digital Library
Author	Lascu, C. Boldea, I. Blaabjerg, F.
Copyright Year	1982
Abstract	A new family of speed-sensorless sliding-mode observers for induction motor drives has been developed. Three topologies are investigated in order to determine their feasibility, parameter sensitivity, and practical applicability. The most significant feature of all schemes is that they do not require the rotor speed adaptation, i.e., they are inherently sensorless observers. The most versatile and robust is a dual-reference-frame full-order flux observer. The other two schemes are flux observers implemented in stator frame and rotor frame, respectively. These are simpler than the first one and make use of the sliding-mode invariance over a specified range of modeling uncertainties and disturbances. Main theoretical aspects, results of parameter sensitivity analysis, and implementation details are given for each observer in order to allow the comparison. Experimental results with the dual-reference-frame observer, considered the most adequate for practical applications, are presented and discussed. Sensorless operation with a sliding-mode direct-torque-controlled drive at very low speeds is demonstrated. It is concluded that the new proposed observers represent a feasible alternative to the classical speed-adaptive flux observers.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	3394
Ending Page	3403
Page Count	10
File Size	336134
File Format	PDF
ISSN	02780046
Volume Number	56
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Induction motor drives Robustness Sensitivity analysis Sensor phenomena and characterization Biomedical engineering Topology Rotors Stators Uncertainty Induction motors variable-structure systems Sliding-mode observers (SMOs) state observers variable-speed drives
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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