NDLI: Why Do Incremental Encoders Do a Reasonably Good Job in Electrical Drives with Digital Control?

Content Provider	IEEE Xplore Digital Library
Author	Kennel, R.M.
Copyright Year	2006
Description	Author affiliation: Electr. Machines & Drives, Wuppertal Univ. (Kennel, R.M.)
Abstract	The technical requirements of encoders to be used in electrical drives with digital control are not yet completely understood. A main statement of (Kennel, 2005) is that neither high resolution resolvers nor high resolution optical encoders do really provide features that could make them competitive to analogue precision tacho generators. As a result the behaviour of digital speed control can still not be as good as of former analogue speed control. The question is, however, why servo drives with digital speed control in fact are successful - nobody does really worry about any impact of optical encoders, because the performance of servo drives with digital control has indeed improved in comparison to former drives with analogue control. This paper explains the technical reasons for that and hereby contributes to better understanding of speed and position encoders, which still are the technical bottle neck for further improvements in digital drive control
Sponsorship	IEEE Ind. Appl. Soc. IEEE Florida West Coast Sect
Starting Page	925
Ending Page	930
File Size	610899
Page Count	6
File Format	PDF
ISBN	1424403642
ISSN	01972618
DOI	10.1109/IAS.2006.256635
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Commutation Position control Servo drives Smoothness Encoders Optical control Digital control Accuracy Velocity control Torque control Signal generators DC generators Servomechanisms Optical sensors Resolution
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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Encoders for Simultaneous Sensing of Position and Speed in Electrical Drives With Digital Control

Encoders for simultaneous sensing of position and speed in electrical drives with digital control

Velocity estimation in digital controlled DC servo drives

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Why Do Incremental Encoders Do a Reasonably Good Job in Electrical Drives with Digital Control?

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