Asian Journal of Control

In this work the stabilization and control of delayed recycling systems is addressed. Recycling systems are characterized by possessing two main paths, named the direct feedforward and the recycling feedback paths. Such class of systems reuse the energy ...

This paper discusses the identification and control of a selective catalytic reduction SCR system. SCR after-treatment systems form an important technology for reducing the nitrogen oxides, NOx, produced by diesel engines. To be able to control the ...

In this paper, the problem of a generalized type of H∞ control is investigated for continuous-time singular systems, which treats a mixed attenuation of exogenous inputs and initial conditions. First, a performance measure that is essentially the worst-...

In this paper we deal with the mixedï źH∞/finite-time stability control problem. More specifically, given an open loop uncertain linear system, we provide a necessary and sufficient condition for quadratic input-output finite-time stability with anï źH∞ ...

Designing minimum possible order minimal observers for multi-input multi-output MIMO linear systems have always been an interesting subject. In this paper, a new methodology to design minimal multi-functional observers for linear time invariant LTI ...

The disturbance decoupling problem by dynamic measurement feedback DDDPM for discrete-time nonlinear control systems is considered in this paper. The mathematical approach known under the name "the algebra of functions" is used to derive an algorithm ...

Electro-mechanical valve actuators EMVA formed by two opposed electromagnets and two balanced springs are appealing solutions to implement advanced combustion concepts for camless engines. A crucial control problem for this valve actuator regards the ...

In this paper, the contouring control problem for the constrained multi-axis motion system is studied. The method of equivalent errors, previously proposed for unconstrained motion systems, is generalized to the system with holonomic constraints. It is ...

In this work, the capture region of the general ideal proportional navigation guidance law is analyzed with the following constraints: i the target's input acceleration is subject to independent or magnitude saturation, and ii the missile's input ...

This paper addresses the problem of designing robust tracking control for a large class of uncertain robotic systems. A more general model of the external disturbance is employed in the sense that the external disturbance can be expressed as the sum of ...

Motivated by the significance of optimizing network performance with limited resources in real applications, we investigate the problem of achieving fast and desired consensus in a complex network via pinning control a fraction of nodes in the network. ...

Recent years have witnessed a growing interest in event-triggered strategies for coordination and cooperative control of multi-agent systems. However, the most previous works and developments focus on the interactive network that has no communication ...

This paper proposes a new method for determining the stability margin of uncertain linear discrete-time systems with uncertainty described by fuzzy convex sets. Nonsymmetrical triangular membership functions describing the uncertainty of characteristic ...

In this paper, a distributed consensus of delayed multi-agent systems with a leader is investigated, and a nonlinear protocol is proposed based on intermittent control. A notable feature of this protocol is to address second-order consensus problems for ...

This paper presents a novel computational approach to deal with optimal multivariable control problems using a control vector parameterization approach with multiple time grids, where each of the control variables has its own time grid of ...

This paper proposes a nonlinear model predictive direct power control PDPC strategy for a double fed induction generator DFIG-based wind energy generation system. Active and reactive power variations of DFIG are calculated based on machine rules, and a ...

In this paper, a multi-rejector of periodic disturbances is proposed for discrete-time nonlinear systems represented by a decoupled state multimodel. We report a decoupled state multimodel repetitive-predictive control based on a supervised algorithm to ...

This paper presents a new longitudinal autopilot to address the finite-time tracking problem for uncertain agile missiles. The proposed autopilot is essentially a composite control scheme, which is obtained through the finite-time control methodology ...

In this paper, an adaptive estimator AE is introduced to learn the approximate Q-function and control policy by only using the noisy states and control signals of the unknown linear, discrete time systems having constant input time delay. The system ...

The distributed model predictive control MPC is studied for the tracking and formation problem of multi-agent system with time-varying communication topology. At each sampling instant, each agent solves an optimization problem respecting input and state ...

This paper presents a robust state feedback formulation for high order repetitive controllers HORC able to track references and/or reject disturbances with uncertain period. We propose a modified structure of the HORC with low-pass filter in series with ...

This paper studies state feedback stabilization over finite-state fading channels, where the stochastic characteristic of time-varying fading channels is assumed to be driven by a finite-state random process. The finite-state process is used to ...

High frequency surface wave radar HFSWR cannot detect target altitude directly and is unable to identify flight mode. Assuming that the estimation and identification processes are mutually dependent, an integrated method called simultaneous ...

The problem of determining the state region in which the current state point lies is referred to as the point location problem in the explicit model predictive control. In this paper, a two-level structure to store the state regions is proposed and two ...

This paper proposes a robust adaptive dynamic surface control DSC scheme for a class of time-varying delay systems with backlash-like hysteresis input. The main features of the proposed DSC method are that 1 by using a transformation function, the ...

This manuscript presents an approach to tune parameters of fractional complex order controllers FCOC. The design procedure uses the basic characteristics of fractional complex order dynamic for an open-loop transfer function. In essence, the procedure ...

This paper studies the tracking performance of the single-input single-output SISO, finite dimensional, linear and time-invariant LTI system under the channel input energy constraint over the Erasure channel. A new performance index is proposed which is ...

A necessary and sufficient condition is derived for the solvability of the disturbance decoupling problem by a pure shift dynamic compensator. It corrects previously obtained results for multi-input multi-output MIMO systems. Also, necessary and ...

When there are external disturbances acting on the system, the conventional Luenberger observer design for state estimation usually results in a biased state estimate. This paper presents a robust state and disturbance observer design that gives both ...

This paper studies the quantization effect on dynamical behaviors of the sliding mode control system with matched uncertainties and disturbances. The sufficient condition for stability of the system is given. The performance of both the sliding mode and ...