Contouring controller for precise motion control systems
Golubovic, Edin and Baran, Eray Abdurrahman and Şabanoviç, Asif (2013) Contouring controller for precise motion control systems. Automatika, 54 (1). pp. 19-27. ISSN 0005-1144
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Official URL: http://dx.doi.org/10.7305/automatika.54-1.304
This paper discusses the trajectory generation algorithm, contour error construction method and finally the contour controller design. In the trajectory generation algorithm combination of elliptical Fourier descriptors (EFD) and time based spline approximation (TBSA) is used to generate position, velocity and acceleration references.Contour error is constructed using transformation of trajectory tracking errors. Transformation is computationally efficient and requires only reference velocity information. Contour controller is designed using sliding mode control. Experiments are performed on planar linear motion stage and significant contour error reduction is observed.
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