Studies on robust stabilization and disturbance rejection for dynamical control systems

Abstract

The research reported in this thesis deals with the robust stabilization and disturbance rejection performance for various dynamical control systems The problem of robust stabilization is studied by using the non fragile Sampled data and adaptive reliable control The tracking control problem and disturbance rejection performance are obtained via equivalent input disturbance EID approach based repetitive control RC In particular EID based modified repetitive control is derived for an uncertain system with external disturbances Further a two dimensional hybrid repetitive control is constructed for switched stochastic systems to obtain a perfect tracking performance Also disturbance rejection performance and tracking control problem is investigated for fractional order nonlinear systems via fractional order EID based RC Further the issues of output tracking and disturbance rejection performance for a class of fractional order Takagi Sugeno fuzzy systems are studied in presence of time varying delay and external disturbances newline