This brief proposes an invariant manifold based output-feedback sliding mode control (SMC) strategy for systems with mismatched disturbances to achieve asymptotic tracking and disturbance rejection. Different from the existing SMC methods, is employed transform multiple into matched ones, which can provide full system dynamics controller design improve accuracy. An observer developed estimate u...

a new approach for pole placement of nonlinear systems using state feedback and fuzzy system is proposed. we use a new online fuzzy training method to identify and to obtain a fuzzy model for the unknown nonlinear system using only the system input and output. then, we linearized this identified model at each sampling time to have an approximate linear time varying system. in order to stabilize...

This paper proposes a Hybrid Backstepping Super Twisting Algorithm for robust speed control of three-phase Induction Motor in the presence load torque uncertainties. First all, squirrel cage is modeled MATLAB/Simulink. then followed by design different non-linear controllers, such as sliding mode (SMC), super twisting SMC, and backstepping control. Furthermore, novel controller designed synergy...

this paper proposes a hybrid control scheme for the synchronization of two chaotic duffing oscillator system, subject to uncertainties and external disturbances. the novelty of this scheme is that the linear quadratic regulation (lqr) control, sliding mode (sm) control and gaussian radial basis function neural network (grbfnn) control are combined to chaos synchronization with respect to extern...

Tracking Control of Underactuated Surface Vessels Using Hybrid Control Methods Yu Tian Advisor: University of Guelph, 2016 Prof. Simon X. Yang In this thesis, two intelligent control systems are developed for tracking control of an underactuated surface vessel (USV). The studied USV is controlled with uncertain parameters, such as the disturbances from the ocean current. In the first part of th...

Uncertain handling chain system (HCS) of container ports brings steady-state error to the original control decisions, and even worse, dramatically degrades performance. The will cause unsatisfied freight requirement be much higher than expected value for a long time, resulting in decrease robustness resilience. In this work, novel sliding mode with power integral reaching law (SMC-P) is present...

A new design method of output feedback type tracking sliding mode control (SMC) is proposed in this paper. Stability of the control system and the tracking performance to the reference input are achieved by using the parallel feedforward compensator (PFC), which guarantees almost strict positive realness (ASPR) of the plant, and the so-called internal model. Effectiveness of the method is shown...

Abstrae1-Most fuzzy controllers (FCs) for nonlinear second order systems are designed with a two-dimensional phase plane in mind. We show that the performance and the robustness of this kind of FC stems from their property of driving the system into the sliding mode (SM), in which the controlled system is invariant to parameter fluctuations and disturbances. Additionally, the continuous distrib...

This paper is concerned with a novel secure data transmission design based on adaptive synchronization of master and slave unified chaotic systems. First, by introducing an augmented error state, continuous sliding mode control (SMC) derived to guarantee the Then, secret message embedded in system can be transmitted from transmitter receiver. Different previous works using discontinuous SMC, un...

This paper uses the concept of sliding-mode control (SMC), as a special approach in nonlinear control theory, in aiding the design of a fuzzy controller. The mathematical specifics of the presented approach are given along with its performance analysis. It was concluded that the new approach with distinctive characteristics holds potential for coping with difficult control problems for a class ...