Results 21 to 30 of about 329,041 (249)

Intermediate observer based simultaneous estimation of system states and multiple faults

open access: yesIET Control Theory & Applications, 2023
In this paper, an intermediate observer is proposed for simultaneously estimating the system state, actuator fault and sensor fault. The necessary and sufficient condition is given with respect to the existence of the designed observer. The observer gain
Jiantao Shi   +3 more
doaj   +1 more source

Reconstructing initial data using observers: error analysis of the semi-discrete and fully discrete approximations [PDF]

open access: yes, 2010
A new iterative algorithm for solving initial data inverse problems from partial observations has been recently proposed in Ramdani et al. (Automatica 46(10), 1616-1625, 2010 ).
Karim Ramdani   +3 more
core   +1 more source

A comparison of methods for monitoring kit foxes at den sites

open access: yesWildlife Society Bulletin, 2013
Monitoring mammalian carnivores at den sites with human observers to document behavior, fecundity, litter size, and natal survival is commonplace when compared with monitoring den sites with cameras.
Bryan M. Kluever   +3 more
doaj   +1 more source

Counteractive control against cyber-attack uncertainties on frequency regulation in the power system

open access: yesIET Cyber-Physical Systems, 2020
In this study, an observer based control strategy is proposed for load frequency control (LFC) scheme against cyber-attack uncertainties. Most of research work focused on detection scheme or delay estimation scheme in presence of cyber-attack ...
Sheetla Prasad
doaj   +1 more source

Compound control method for DC–DC converter

open access: yesThe Journal of Engineering, 2019
Considering the problems of internal and external disturbances, i.e. time-varying load, inaccurate system model and external uncertainties etc., a compound control strategy based on model predictive control (MPC) and non-linear extended state observer ...
Yongwei Tang   +4 more
doaj   +1 more source

Observer-Based Adaptive Control of Uncertain Nonlinear Systems Via Neural Networks

open access: yesIEEE Access, 2018
In this paper, a novel observer-based control strategy is proposed for a class of uncertain continuous-time nonlinear systems based on the Hamilton-Jacobi-Bellman (HJB) equation.
Chaoxu Mu, Yong Zhang, Ke Wang
doaj   +1 more source

Finite-time composite control scheme for three-phase four-leg inverter under variable operating conditions

open access: yesThe Journal of Engineering, 2019
Three-phase four-leg inverters widely used in microgrid can effectively provide the power for the non-linear/unbalanced loads. Here, the non-linear composite controller is proposed for three-phase four-leg inverter system under [inline-formula] reference
Yuge Sun   +3 more
doaj   +1 more source

A Novel Analytical Approach Using Rough Set and Genetic Algorithm of a Stable Sensorless Induction Motor Drives in the Regenerating Mode

open access: yesIEEE Access, 2020
A novel approach for optimized observer feedback gains of a stable sensorless induction motor (IM) drives at very low speeds in the regenerating mode is presented.
Mohamed S. Zaky   +3 more
doaj   +1 more source

Cyber Physical Systems: A New Approach to Power Electronics Simulation, Control and Testing

open access: yesAdvances in Electrical and Computer Engineering, 2012
This paper presents a Cyber Physical Systems approach to power electronics simulation, control and testing. We present a new framework based on generalized hybrid automaton and application specific ultra-low latency high-speed processor architecture ...
CELANOVIC, N. L.   +2 more
doaj   +1 more source

Disturbance observer-based L(1) robust tracking control for single-link flexible-joint manipulator systems

open access: yesThe Journal of Engineering, 2019
In this study, a novel disturbance observer-based (DOB) [inline-formula] robust anti-disturbance tracking control problem is discussed for a kind of single-link flexible-joint manipulator with separate types of disturbances.
Chenbo Niu   +3 more
doaj   +1 more source

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