This paper presents a system architecture for load management in smart buildings which enables autonomous demand side the grid. Being of layered structure composed three main modules admission control, balancing, and response management, this can encapsulate functionality, assure interoperability between various components, allow integration different energy sources, ease maintenance upgrading. Hence it is capable handling consumption systems with heterogeneous dynamics multiple time-scales...

This paper is concerned with the speed tracking control problem for a permanent-magnet synchronous motor (PMSM) in presence of an unknown load torque disturbance. After brief review mathematical model PMSM, law using exact linearization methodology introduced. The algorithm completed by adding extended observer which provides, on one hand, and acceleration and, other estimates torque. stability closed-loop system composed nonlinear controller studied way Lyapunov theory. Furthermore,...

This paper presents a sensorless speed regulation scheme for permanent-magnet synchronous motor (PMSM) based solely on the line currents measurements. The proposed combines an exact linearization-based controller with nonlinear state observer which estimates rotor position and speed. Moreover, stability of closed-loop system, including observer, is demonstrated through Lyapunov theory. has advantage being insensitive to rotation direction. It shown how singularity at zero velocity appears in...

Typical adaptive optics (AO) applications require continual measurement and correction of aberrated light form closed-loop control systems. One the key components in microelectromechanical system (MEMS) based AO systems is parallel-plate microactuator. Being electrostatically actuated, this type devices inherently instable beyond pull-in position when they are controlled by a constant voltage. Therefore extending stable travelling range such forms one central topics MEMS. In addition, though...

This paper addresses the problem of load-shaving in Smart Homes view improving energy efficiency Grids. An architecture home power management systems, allowing separation domestic load control from grid dynamics, is introduced. In this framework, operation appliances modeled as a finite state machine which enables implementation online scheduling borrowed techniques developed real-time computing systems. A algorithm for peak-load shaving and simulation results confirm effectiveness proposed approach.

This note addresses input-to-state stability (ISS) properties with respect to (w.r.t.) boundary and in-domain disturbances for Burgers' equation. The developed approach is a combination of the method De~Giorgi iteration technique Lyapunov functionals by adequately splitting original problem into two subsystems. ISS in $L^2$-norm equation have been established using this method. Moreover, as an application iteration, $L^\infty$-norm w.r.t. actuation errors feedback control 1-$D$ {linear}...

ABSTRACT In this paper, we extend the notion of finite‐time input‐to‐state stability (FTISS) for finite‐dimensional systems to infinite‐dimensional systems. More specifically, first prove an FTISS Lyapunov theorem a class systems, namely, existence functional (FTISS‐LF) implies system, and then, provide sufficient condition ensuring FTISS‐LF abstract under framework compact semigroup theory Hilbert spaces. As application theorem, verify parabolic PDEs involving sublinear terms distributed...

The assurance of reliability becomes increasingly challenging as the complexity networked control systems (NCS) rapidly increases. Simplex architecture was designed to tolerate software design and implementation. This consists a high controller (HAC) performance (HPC). HAC uses linear state feedback create large maximum stability region (MSR). HPC aims at achieving better may use any design. However, plant's states under must stay within MSR, or is switched HAC.

This paper presents a control scheme for thermal management in smart buildings based on predictive power admission control. approach combines model with budget-schedulability analysis order to reduce peak consumption as well ensure comfort. First, the budget given comfort constraint is optimized through which amounts solving constrained linear programming problem. Second, effective demand reduced by means of optimal scheduling and cooperative operation multiple appliances. The performance...

Synchrophasor networks are subject to communication delays and packet dropout that can compromise data integrity and, thus, jeopardize control monitoring of smart microgrids. This paper proposes an advanced phasor concentrators (APDC) capable counteracting the impairments improving quality distributed energy resources (DERs) in The proposed APDC utilizes adaptive compensation scheme achieve effective estimate missing elements. Moreover, a unit is reliably detect frequency excursions identify...

This paper is aimed at demonstrating the potential benefits of applying nonlinear control techniques to a type microelectromechanical system, namely, electrostatic micromirrors, in order extend their stable operation range, enhance system's performance, and allow controller tuning system be performed systematic manner. A tracking based on feedback linearization trajectory planning has been developed. Aspects essential implementation, such as prevention devices from destruction due contact,...

An n-unit series repairable system with a repairman doing other work is discussed in this paper. We are devoted to studying the unique existence of solution and exponential stability system. C0-semigroup theory used prove non-negative Then by analysing spectra distribution operator quasi-compactness system, we derive that transient exponentially converges steady-state solution, which eigenvector corresponding eigenvalue 0 operator. Some reliability indices strategy his idle time presented at end

This paper addresses the admission control of thermal appliances in context smart buildings. The scheduling devices operation is formulated framework discrete-event systems, which allows for modeling and design to be carried out a systematic manner ensuring existence feasible prior exploring solutions. Two algorithms are developed purpose peak demand reduction. While first algorithm validates schedulability appliances, second may achieve more efficient use available capacity by concept...

This note establishes the Exponential Input-to-State Stability (EISS) property for a clamped-free damped string with respect to distributed and boundary disturbances. While efficient methods establishing ISS properties parameter systems disturbances have been developed during last decades, remains challenging. One of well-known well-posedness analysis inputs is use lifting operator transferring disturbance one. However, resulting involves time derivatives perturbation. Thus, subsequent...

This paper presents a study on event-triggered power tracking control of heterogeneous thermostatically controlled load (TCL) populations. The developed schemes are based continuous-time TCL populations which the aggregated dynamics described by coupled Fokker-Planck equations. Two event-triggering mechanisms, namely static and dynamic strategies, proposed, can guarantee input-to-state practical stability (ISpS) error while excluding Zeno phenomenon. A simulation is conducted, obtained...

Though certain control schemes, such as charge and capacitive feedback, can extend the stable travelling range of electrostatically actuated micro-devices to full gap, transient behavior actuators is dominated by their mechanical dynamics. Thus, performance may be poor if natural damping devices too low or high. The presented work aims at improving a parallel-plate electrostatic micro-actuator nonlinear control. Three based on differential flatness, Lyapunov functions, backstepping, are...

This article addresses the modeling and control of heterogeneous populations thermostatically controlled loads (TCLs) operated by model predictive (MPC) schemes at level each TCL. It is shown that dynamics such TCLs can be described a pair Fokker-Planck equations coupled via actions in domain. The technique input-output feedback linearization used design aggregate power control, which leads to nonlinear system closed loop. Well-posedness analysis carried out validate developed scheme....

Due to the compact layout, manufacturing tolerance, modeling errors, and environmental changes, micro-electromechanical systems (MEMS) are subjected parasitics parameter variations. In order better guarantee their stability a certain level of performance, one must take into account these factors in design MEMS control systems. This work presents two robust laws for parallel-plate electrostatic micro-actuator presence uncertainties. The dynamical model system is firstly established schemes,...

Due to the compact layout, manufacturing tolerance, modeling errors, and environmental changes, microelectromechanical systems (MEMSs) are subjected parasitics parameter variations. In order better guarantee their stability a certain level of performance, one must take into account these factors in design MEMS control systems. This work presents two robust laws for parallel-plate electrostatic microactuator presence uncertainties. The dynamical model system, including parallel serial...

This paper presents a novel approach to design robust and smooth self-scheduled controllers in the framework of structured H∞ control. The newly available MATLAB-based tool, hinfstruct, is used tune fixed-structure linear meet constraints. Moreover, multi-model multi-channel capabilities are exploited selfscheduled controllers. In this context, we define priori both controller architecture gain-scheduling structure. successfully applied longitudinal control F-16 Fighting Falcon over flight...