NDLI: Instantaneous speed detection with parameter identification for AC servo systems

Content Provider	IEEE Xplore Digital Library
Author	Fujita, K. Sado, K.
Copyright Year	1990
Description	Author affiliation: Fuji Electr. Corp. Res. & Dev. Ltd., Tokyo, Japan (Fujita, K.; Sado, K.)
Abstract	Two methods that use advanced control technology in order to improve the performance of AC servomotor systems are described. The first method is the detection of instantaneous speed using an observer. This method provides good response in speed control because it is possible to detect exactly the speed without detection dead time over a wide range of speeds. The second method is the identification of the mechanical inertia time corresponding to motor and load based on the model reference adaptive control; system (MRACS). This method enables instantaneous speed detection to be applied to systems in which the mechanical inertia time is unknown. Moreover, it can realize the automatic adjustment of a speed controller using the result of identification. The effectiveness of these methods has been confirmed by experimentation. The experimental system is composed of a digital controller with a digital signal processor (DSP), a pulse-width-modulation (PWM) inverter, and a permanent magnetic motor.<>
Starting Page	632
Ending Page	638
File Size	646070
Page Count	7
File Format	PDF
ISBN	0879425539
DOI	10.1109/IAS.1990.152252
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-10-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation inverters Digital control Parameter estimation Velocity control Digital signal processors Digital signal processing Automatic control Control systems Servomotors Adaptive control
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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