Linear model-based feedforward control for improving tracking-performance of linear motors

Yan Jang Li, Szu Chi Tien

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

The main purpose of this article is to propose a linear model-based approach for improving the tracking performance of linear motors. In particular, P- and PI-controllers, augmented with a linear-model-based feedforward controller and disturbance observer (DOB), were utilized in this research. Experimental results show that the feedforward controller can substantially reduce the phase-delay problem resulting from the limitation of closed-loop bandwidth. In addition, the DOB can reject nonlinear behaviors to keep a motor-system close to our nominal linear model. Compared with the results of using P- and PI-controllers only, tracking errors were reduced from 4.44% to 0.67% of the desired trajectory. Therefore, the proposed method provides a solution for improving the tracking performance of linear motors.

原文English
頁(從 - 到)1602-1611
頁數10
期刊Asian Journal of Control
16
發行號6
DOIs
出版狀態Published - 2014 11月

All Science Journal Classification (ASJC) codes

  • 控制與系統工程

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