Fuzzy Adaptive SOSM Based Control of a Type of Nonlinear Systems
Keqi Mei, Shihong Ding, Wei Xing Zheng
Abstract
This brief addresses the issue of devising a fuzzy adaptive second-order sliding mode (SOSM) controller for a type of nonlinear systems. First of all, the fuzzy logic systems are adopted to dynamically approximate the unknown functional bounds of uncertainties. Subsequently, a control strategy of fuzzy adaptive SOSM on the basis of the backstepping-like technique and the fuzzy adaptive control is developed. It is strictly proved via the Lyapunov theory that the resultant whole system is finite-time stable. Comparative simulation results confirm that under the proposed method, the states can be rapidly regulated to zero and meantime the chattering problem can be alleviated.
Topics & Concepts
Control theory (sociology)Fuzzy logicBacksteppingNonlinear systemController (irrigation)Fuzzy control systemComputer scienceAdaptive controlControl engineeringType (biology)Control (management)MathematicsEngineeringArtificial intelligencePhysicsEcologyBiologyAgronomyQuantum mechanicsAdaptive Control of Nonlinear SystemsGuidance and Control SystemsFuzzy Logic and Control Systems