Title
Second order sliding mode control using nonlinear dynamic sliding manifold : a Lyapunov approach
Date of Award
2016
Document Type
Thesis
Degree Name
Master of Science in Engineering (MSE)
Department
Electrical and Computer Engineering
Committee Chair
Yuri Shtessel
Committee Member
Laurie L. Joiner
Committee Member
Chang-Kwon Kang
Subject(s)
Lyapunov functions., Sliding mode control.
Abstract
Second order Sliding Mode Control (2-SMC) algorithms require knowledge of derivative of sliding variable, which is to be implemented using 2-SM differentiators. The use of 2-Sliding Mode differentiators causes loss of accuracy. Hence, the approach known as nonlinear dynamic sliding manifold (NDSM) approach is used to design a 2-SM control algorithm without the knowledge of derivative of sliding variable. The main contribution of the thesis is proof of finite time convergence of 2-SMC using NDSM approach by Lyapunov function technique. Also an adaptive 2-SM control law is proposed for perturbed systems with unknown boundaries using NDSM approach to avoid overestimation of control gains.
Recommended Citation
Chava, Bhargav, "Second order sliding mode control using nonlinear dynamic sliding manifold : a Lyapunov approach" (2016). Theses. 178.
https://louis.uah.edu/uah-theses/178