Performance evaluation of a velocity observer for accurate velocity estimation of servo motor drives

doi:10.1109/28.821803

機構典藏 > College of Engineering > Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering > Journal Article > Item 987654321/45718

Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/45718

Title:	Performance evaluation of a velocity observer for accurate velocity estimation of servo motor drives
Authors:	Yang, Sheng-ming;Ke, Shuenn-jenn
Contributors:	淡江大學機械與機電工程學系
Keywords:	Servo motor;velocity estimation;velocity observer
Date:	2000-01
Issue Date:	2010-03-26 19:48:02 (UTC+8)
Publisher:	Piscataway: Institute of Electrical and Electronics Engineers (IEEE)
Abstract:	Because each of the position transducers commonly used in industry, i.e., encoders and resolvers, do not inherently measure an instantaneous velocity, some signal processing technique is generally required to improve the accuracy of velocity estimation at each sampling instant. This estimated signal is then used as the velocity feedback signal for the velocity loop control. The differential position technique commonly used in industry for velocity estimation suffers from a large quantization error and, therefore, limits the servo control loop bandwidth. This paper presents both the theoretical analysis and experimental verification of a scheme that uses a closed-loop observer for velocity estimation. The results have shown that the quantization error in the velocity feedback signal can be reduced dramatically when a closed-loop observer is used for velocity estimation. The results also shown that, at low speed, the velocity estimation could be improved with a simple compensation scheme
Relation:	IEEE transactions on industry applications 36(1), pp.98-104
DOI:	10.1109/28.821803
Appears in Collections:	[Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering] Journal Article

Files in This Item:

File	Description	Size	Format
0093-9994_36(1)p98-104.pdf		180Kb	Adobe PDF	1253	View/Open
Performance evaluation of a velocity observer for accurate velocity estimation of servo motor drives.pdf		182Kb	Adobe PDF	2	View/Open

Loading...