Pole-placement position control of a hydraulic robot arm

C. Ozsoy*, A. Kural, A. Kuzucu

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3 Atıf (Scopus)

Özet

This paper discusses a single-input single-output discrete-time model developed to control joint position of a manipulator design for painting purposes. The input of the discrete-time model is the voltage into the control valve, and the output is the joint displacement. The model parameters are identified by using input-output data collected from the actual system. Recursive least-squares, square root, U-D factorization and variable forgetting factor methods were used for the estimation, and a good match between the model and actual system responses was obtained. The best estimation results were found by the U-D factorization algorithm according to the sum of the squared errors. Since identification results indicate a non-minimum phase system, a pole-placement self-tuning controller is designed for the purpose of joint trajectory control. The control signal computed off-line is applied to the electrohydraulic drive system and the perfect performance of the pole-placement controller is shown by the experimental studies.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)149-156
Sayfa sayısı8
DergiProceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering
Hacim208
Basın numarası3
DOI'lar
Yayın durumuYayınlandı - 1994

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