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

doi:10.1109/28.821803

淡江大學機構典藏 > 工學院 > 機械與機電工程學系暨研究所 > 期刊論文 > Item 987654321/45718

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题名:	Performance evaluation of a velocity observer for accurate velocity estimation of servo motor drives
作者:	Yang, Sheng-ming;Ke, Shuenn-jenn
贡献者:	淡江大學機械與機電工程學系
关键词:	Servo motor;velocity estimation;velocity observer
日期:	2000-01
上传时间:	2010-03-26 19:48:02 (UTC+8)
出版者:	Piscataway: Institute of Electrical and Electronics Engineers (IEEE)
摘要:	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
關聯:	IEEE transactions on industry applications 36(1), pp.98-104
DOI:	10.1109/28.821803
显示于类别:	[機械與機電工程學系暨研究所] 期刊論文

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0093-9994_36(1)p98-104.pdf		180Kb	Adobe PDF	1253	检视/开启
Performance evaluation of a velocity observer for accurate velocity estimation of servo motor drives.pdf		182Kb	Adobe PDF	2	检视/开启

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