Nonlinear Position Control of Digital Hydraulic Cylinder Despite Disturbance

Shi Jie Xu; J.F. Xing; Li Kun Peng

doi:10.4028/www.scientific.net/AMR.998-999.638

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 998-999Nonlinear Position Control of Digital Hydraulic...

Nonlinear Position Control of Digital Hydraulic Cylinder Despite Disturbance

Abstract:

A nonlinear controller is presented for a digital hydraulic cylinder against disturbance. We first establish the nonlinear model of digital hydraulic cylinder position control system. Then a Lyapunov function and a nonlinear controller are presented. The controller designing problem is translated into the problem of solving a linear matrix inequality. The experiment results show that the controller proposed by this paper has much better performance than traditional one.