NDLI: Two stage nonlinear control design of PMAC servodrive

Content Provider	IEEE Xplore Digital Library
Author	Grear, B. Cafuta, P. Znidaric, M. Dolinar, D.
Copyright Year	1996
Description	Author affiliation: Fac. of Electr. Eng. & Comput. Sci., Maribor Univ., Slovenia (Grear, B.)
Abstract	In the paper the two stage control design of a high performance PMAC servodrive is described. In the first stage the nominal PMAC motor model is discussed as an analytical nonlinear system, transformed into the controllable canonical Brunovsky's form on the basis of input-output linearization. The influence of the load torque is considered implicitly by introducing the disturbance observer. Due to the sensitivity of the nominal model based control to parameter perturbations the linear tracking control is extended in the second stage by a continuous variable structure stabilizing control derived from Lyapunov's function of the augmented feedback systems. The design of the variable structure control requires no knowledge of the upper bounds of the perturbation function; instead, it considers the variable bounds of the available control signal. Undesired chattering of states and controlled variables are excluded. The introduced two stage control design assures practical robust stabilization for the class of bounded nonlinear perturbations satisfying the matching conditions without affecting the relative degree of feedback system. Experimental results of the proposed PMAC servodrive control are presented.
Starting Page	3
Ending Page	8
File Size	585826
Page Count	6
File Format	PDF
ISBN	0780335449
ISSN	01972618
DOI	10.1109/IAS.1996.556989
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-10-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robust control Torque Upper bound Control design Linear feedback control systems Nonlinear control systems Lyapunov method Servomotors Nonlinear systems Signal design
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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