Asian Journal of Control

This paper deals with the problem of harmonic distortion in velocity control drives for large horsepower three‐phase induction motors. A new solution alternative to considerably reduce harmonic distortion in controlled large‐capacity induction ...

This paper proposes a novel nonlinear decentralized control method for a class of multi‐machine power systems. The aim is to construct a suitable decentralized feedback control law so as to guarantee that the large‐scale interconnected power ...

The problem considered in this work is formation control of linear heterogeneous Multi‐Agent Systems (MASs) where the size of the formation is scalable via a scaling factor determined by a leader agent. Agents are communicating through a leader‐...

The optimal control of time‐varying nonlinear systems is an important research topic and faces many difficulties and challenges, but also has substantial benefits. In this paper, the output optimization of scalar time‐varying nonlinear (STVN) ...

This work focuses on output feedback sliding mode control (SMC) for nonlinear systems via T‐S fuzzy affine models. Associated with the sliding surface, a singular system is firstly proposed to describe the dynamical features of the sliding motion. ...

In order to obtain the high‐quality fast response control for helicopter/turboshaft engine with variable rotor speed, a nonlinear model predictive control (NMPC) method based on piecewise objective function is proposed. The piecewise objective ...

For the output feedback control problem of a T‐S fuzzy system, an H∞ observer‐controller synthesis method is proposed. First, with parallel distributed compensation fuzzy observer and controller, an augmented error system is obtained. Based on ...

This paper presents a novel autonomous shipboard landing control algorithm of a quadrotor subject to external disturbances and input saturation. A coupled six‐degrees‐of‐freedom (6‐DOF) nonlinear relative motion model is derived to facilitate the ...

In this paper, a feedback control law based on two time‐scale assignment and state extension is implemented for the nonlinear non‐minimum phase dynamics of three degree‐of‐freedom autonomous unmanned helicopters (AUH). Unlike previous techniques, ...

The self‐adaptive terminal sliding mode synchronization of fractional‐order nonlinear chaotic systems is investigated under uncertainty and external disturbance. A novel non‐singular terminal sliding surface is proposed and proved to be stable. ...

This paper investigates the issue of neural network adaptive finite‐time tracking control for stochastic nonlinear systems subject to full state constraints. In the controller design process, neural networks are employed to cope with the packed ...

This paper addresses the problem of stability in terms of two measures for impulsive switched nonlinear systems. By using multiple Lyapunov functions (MLFs), we establish some sufficient conditions of all kinds of stability in terms of two ...

This paper develops the coordination learning control of second‐order non‐linear multi‐agent systems with input saturation. Fully distributed learning consensus protocols with fully saturated parameter adaptive updating laws are designed. Although ...

This paper addresses the trajectory tracking control problem for an underactuated surface vessel (USV) with full state constraints. In order to solve the inconvenience caused by the USV underactuated structure to the system controller design, the ...

There exist frequent economic cost changes in many process systems due to variations in price, market demand, disturbance, etc. This change switches the economic setpoint of processes throughout their operation and may cause a loss of feasibility ...

In this paper, we consider structure‐preserving model reduction for multi‐input multi‐output port‐Hamiltonian systems based on projection. Specifically, we prove that the reduced system, the projection matrix of which is constructed by solving ...

The main purpose of this paper is to solve the variational problem containing real‐ and complex‐order fractional derivatives. We define a new version of the complex‐order derivative based on the ψ‐Riemann‐Liouville fractional derivative, and get ...

The extended Kalman filter (EKF) is a widely used method in navigation applications. The EKF suffers from noise covariance uncertainty, potentially causing it to perform poorly in practice. This paper attempts to suppress the unfavorable effect of ...

This paper presents a passivity‐based distributed model predictive control algorithm that can provide minimum performance bound on power flow systems. The dynamics of large‐scale power flow systems can be described by the transportation, ...

This paper proposes a novel double switchings reliable control for positive switched systems. Double switchings refer to the switchings of subsystems and faults. Considering the actuator faults during the system operation, a class of periodic ...

In this paper, a second‐order non‐singular fast terminal sliding mode controller is proposed for robotic manipulators in the presence of uncertainties and disturbances. Adaptive control is used to obtain robustness to system uncertainties and ...

A novel method combining the sliding mode control (SMC) and extended state observer (ESO) is proposed for position control of an electro‐hydraulic servo system (EHSS), which is nonlinear in mechanical dynamics. Based on the SMC technique, the ...

In practical industrial applications, the control performance in a wide speed range is hard to ensure, especially under the low‐speed condition with a low‐cost incremental encoder, while the unknown structure parameters may also degrade the ...

In this paper, optimal control problems governed by linear discrete‐time descriptor noncausal systems (with quadratic input variables) are investigated in order. A descriptor system assumed to be regular alone is called descriptor noncausal ...

In this study, trajectory tracking of robotic manipulators under varying loads with uncertainties and external disturbances is obtained by proposing model‐independent adaptive fractional high‐order terminal sliding mode control (AFO‐HoTSMC). The ...

This paper investigates the time–domain response of nabla discrete fractional order systems by exploring several useful properties of the nabla discrete Laplace transform and the discrete Mittag–Leffler function. In particular, we find the ...

A geometric adaptive control of quadrotors has been proposed in this paper when the center of gravity of the quadrotor is different from its geometric center. The unique feature of the controller is the use of left tracking error function to ...

This paper proposes a nonlinear disturbance observer based controller (NDOBC) for quadrotors utilizing the rotation matrices for attitude dynamics. The proposed observer does not make the assumption that the disturbance is constant or its upper ...

This work proposes a framework to design, formulate and implement a path tracker for self‐driving cars (SDC) based on a nonlinear model‐predictive‐control (NMPC) approach. The presented methodology is developed to be used by designers in the ...

This article proposes a new intelligent control scheme that uses the Fuzzy Super Twisting Sliding Mode Concept (FSTSMC) and PID controller tuned with the Artificial Bee Colony (ABC) algorithm to control a full vehicle active suspension system with ...