Abstract
This article presents an improved integral variable structure control scheme to avoid overshooting responses for a class of second-order plants. The proposed sliding dynamics have two integral state variables. One integral state variable is initially specified to enable existence of a sliding mode throughout an entire response. The other’s initial value is assigned to avoid overshooting output responses. It is shown that the integral state is initially chosen to be a nonlinear function of the plant’s initial state to avoid an overshooting response. This article also reports the experimental results for controlling the position of a screw-driven actuator with various payloads and initial velocities, in order to show the effectiveness of the proposed scheme.
Keywords
Get full access to this article
View all access options for this article.
