A Fuzzy-P controller of an active reaction force compensation (RFC) mechanism for a linear motor motion stage

被引:0
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作者
Duc Canh Nguyen
Hyeong-Joon Ahn
机构
[1] Graduate School,Department of Mechanical Engineering
[2] Soongsil University,Department of Mechanical Engineering
[3] Soongsil University,undefined
关键词
Active reaction force compensation; Linear motor motion stage; Fuzzy-P controller;
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学科分类号
摘要
Residual vibration of system base due to high-speed motion of a stage may significantly reduce life span and productivity of the manufacturing equipment. Although a passive reaction force compensation (RFC) mechanism was developed to reduce residual vibration of a linear motor motion stage, the passive RFC mechanism should be redesigned according to variation of motion profiles. In this paper, we develop a fuzzy-P (proportional) controller of an active RFC mechanism to automatically tune the gain according to variation of motion profiles. First, frequency components of motion profiles for a linear motion stage are analyzed and performances of the passive RFC mechanism are approximately evaluated using a motion profile analysis. An active RFC mechanism with an additional control coil is introduced to overcome limitation of the passive RFC mechanism and a fuzzy rule is proposed to automatically tune the P controller of the active RFC mechanism according to variations of motion profiles. Simulations and experiments are performed to show effectiveness of the proposed fuzzy rule for tuning the P control gain of the active RFC mechanism.
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页码:1067 / 1074
页数:7
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