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In this paper, on the basis of sliding mode control theory, a new integral tangent adaptive fuzzy sliding mode control for aircraft engine was proposed. Based on the uncertainty model of aircraft engine, a hyperbolic tangent integral sliding surface was constructed at first, and it effectively overcome the problem of integral saturation effect which was often occur in the traditional integral sliding...
A nonlinear controller design method is proposed for active surge control of compression system. Close-coupled valve (CCV) is used to modify the characteristic of the compressor, and allows for stable operation beyond the original surge line. The controller is constructed on the uncertainty and disturbance estimator (UDE) approach. The algorithm provides excellent stabilization and disturbance rejection...
Employing predictive control strategy, a novel discrete-time variable structure control (VSC) algorithm is presented for a class of nonlinear uncertain systems. By applying reaching law and higher order sliding mode approaches, a creative higher order sliding mode prediction model (HOSMPM) is constructed, such that the future information of sliding mode can be used. Based on the HOSMPM and feedback...
Based on a creative sliding mode prediction model, a novel sliding mode observer (SMO) design method for discrete-time nonlinear uncertain systems is presented in this paper. By combining feedback correction approach, the observer states can close to system states as exactly as possible, and chattering is eliminate simultaneously. Because of the employing of receding horizon optimization technique,...
Predictive control strategy is employed to improve the performance of sliding mode control method in this paper. A multi-step sliding mode prediction model (MSMPM) is constructed at first. The MSMPM includes the function of compensating for system parameter perturbation and external disturbance. Based on the MSMPM and applied receding horizon optimization, a novel sliding mode control law for a class...
Sliding mode-like fuzzy logic control (SMFC) algorithm for nonlinear systems is presented in this paper. Firstly dead zone parameters of sliding mode control (SMC) are self-tuned by proper adaptive laws and then combined into fuzzy logic system (FLS) to compose the opportune fuzzy logic control (FLC), which is equivalent to the pre-designed SMC controller with self-tuning parameters. Robustness and...
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