Title :
Stabilization and tracking control for a class of discrete-time nonlinear systems
Author :
Lashari, Muhammad Afzal ; Zia, Qamar ; Rehan, Muhammad
Author_Institution :
Dept. of Electr. Eng., Pakistan Inst. of Eng. & Appl. Sci., Islamabad, Pakistan
Abstract :
In this paper, the problem is considered for stabilization and tracking control for discrete-time Lipschitz nonlinear systems. This study provides a methodology to deal with a general case of discrete-time nonlinear systems, which fulfill the Lipschitz nonlinearity condition. Due to the superior performance and extreme versatility of digital controllers, a discrete-time control approach is proposed with state feedback technique and bi-linear matrix inequalities (BMIs) for nonlinear systems to achieve, the stabilization and tracking control objectives. For a class of Lipschitz nonlinear systems, a global asymptotic stability is ensured for system states as well as output tracking with very small steady state error. In the support of proposed methodologies, two simulation examples of nonlinear systems are provided.
Keywords :
asymptotic stability; control nonlinearities; digital control; discrete time systems; linear matrix inequalities; nonlinear control systems; state feedback; BMI; Lipschitz nonlinearity condition; bilinear matrix inequalities; digital controllers; discrete-time Lipschitz nonlinear systems; discrete-time control approach; global asymptotic stability; output tracking; stabilization objective; state feedback technique; steady state error; tracking control objective; Asymptotic stability; Control systems; Linear matrix inequalities; Nonlinear systems; Steady-state; Discrete-time nonlinear systems; Lipschitz condition; Lyapunov stability; bi-linear matrix inequality (BMI);
Conference_Titel :
Applied Sciences and Technology (IBCAST), 2015 12th International Bhurban Conference on
Conference_Location :
Islamabad
DOI :
10.1109/IBCAST.2015.7058496