Solutions exist for the problem of canceling sinusoidal disturbances by the measurement of the state or by the measurement of an output for linear and nonlinear systems. In this paper, an adaptive backstepping controller is designed to cancel sinusoidal disturbances forcing an unknown linear time-invariant system in controllable canonical form which is augmented by a linear input subsystem with...

This study contrives a discrete-time adaptive decentralized control algorithm with input quantization for interconnected multi-machine power systems SVC. First, dynamic surface scheme is applied to the excitation controller design, in which first-order digital low-pass filters are used predict next virtual law, overcomes model conversion problem backstepping. Therefore, design and structure sim...

An intelligent backstepping sliding-mode control system using radial basis function network (RBFN) for a two-axis motion control system using permanent magnet linear synchronous motors (PMLSMs) is proposed. First, single-axis motion dynamics with the introduction of a lumped uncertainty, including cross-coupled interference between the two-axis mechanism, is derived. Then, to improve the contro...

This paper addresses three related issues concerning the path following control of a podded propulsion unmanned surface vehicle (USV), namely modeling, guidance and control. The pod is different from the general propeller-rudder propulsion device, and its essence is a vector thruster. Therefore, first, through various assumptions and simplification, the three-degree of freedom (DOFs) planar mot...

In order to solve the problem of low speed and stable course tracking small unmanned surface vessel (USV), lateral thruster are added driving structure USV, a backstepping control method is designed. By introducing Lyapunov function, error can converge region near desired meet transient steady performance system at same time. The adaptive applied thrust closed-loop remains for finite direct use...

The torque and flux ripple of traditional DTC control PMSM is large, due to the lack adaptive system, change system parameters has a great impact on steady transient performance motor speed. Based algorithm, parameter identification backstepping algorithm proposed in this paper. Because controller used replace PI hysteresis controller, steady-state obviously improved. At same time, designed, wh...