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http://dx.doi.org/10.7736/KSPE.2014.31.8.705

Design of Velocity Ripple Controller using Phase Compensation Feedforward Control  

Tae, Won-Hyoung (Department of Mechanical System Design Eng., Seoul National Univ. of Sci. & Tech.)
Kim, Jung-Han (Department of Mechanical System Design Eng., Seoul National Univ. of Sci. & Tech.)
Shim, Jong-Youp (Advanced Manufacturing Systems Research Division, Korea Institute of Machinery & Materials)
Oh, Jeong-Seok (Advanced Manufacturing Systems Research Division, Korea Institute of Machinery & Materials)
Song, Jun-Yeob (Advanced Manufacturing Systems Research Division, Korea Institute of Machinery & Materials)
Publication Information
Journal of the Korean Society for Precision Engineering / v.31, no.8, 2014 , pp. 705-713 More about this Journal
Abstract
In this paper, we propose a novel velocity ripple controller using phase compensation feedforward control. Velocity ripples result in many kinds of performance degradations in manufacturing machines, especially such as ultra-precision roll lathes. The generation of velocity ripple in constant velocity control comes from various causes, such as electrical torque ripples, mechanical worn out, inconsistent mass center, etc. Conventional researches about ripple is mainly for reducing torque ripple in actuator level, which is only one of reasons for velocity ripples, so in this study, we focus on eliminating velocity ripples in upper level controller using phase compensation feedforward controller. The proposed algorithm is composed of several modules, such as ripple extractor, phase adjuster and phase follower etc. The suggested algorithm can be easily extended, and it shows a superior performance in the experiments of ultra-precision roll lathes.
Keywords
Velocity Ripple; Torque Ripple; Feedforward Control; BLDC Motor; PLL Algorithm;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
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