NDLI: Model reference adaptive control-implementation considerations on an integer-based DSP

Content Provider	IEEE Xplore Digital Library
Author	Chen, L. Balda, J.C. Olejniczak, K.J.
Copyright Year	1995
Description	Author affiliation: Polyspede Electron. Corp., Dallas, TX, USA (Chen, L.)
Abstract	Model reference adaptive control (MRAC) techniques may be used in high-performance applications of induction motor drives to minimize adverse effects from changes in the load conditions and/or system parameters. Although the MRAC technique accounts for uncertainties and/or inaccuracies of the motor and load parameters in the design stage, its implementation on an integer-based DSP has several difficulties associated with the large dynamic range of the covariance matrix and the finite length of the DSP word. This paper addresses the solution to these difficulties using double-word fixed-point algorithms which increase the dynamic range of the data and concurrently reduces rounding and/or truncation errors. The unavoidable disadvantage is a longer execution time. First, the general MRAC technique is briefly discussed for reference. Double-word fixed-point addition, subtraction, multiplication and division are then described in detail. Finally, experimental results are presented to illustrate the proposed ideas when controlling the speed of a 2 hp induction motor drive using the proposed double-word fixed-point MRAC technique for the speed controller.
Starting Page	1612
Ending Page	1618
File Size	626912
Page Count	7
File Format	PDF
ISBN	0780330080
ISSN	01972618
DOI	10.1109/IAS.1995.530497
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-10-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Uncertainty Proportional control Digital signal processors Signal processing algorithms Digital signal processing Pi control Dynamic range Covariance matrix Adaptive control Finite wordlength effects
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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