Results 11 to 20 of about 14,650 (266)

Grid current low-order harmonics suppression of the three-phase grid converter with an LCL filter under the distorted grid voltage

open access: yesThe Journal of Engineering, 2019
This article presents an extended backstepping control method to reduce the grid-side current harmonics caused by grid voltage distortion. A dynamic model considering the grid voltage as an external disturbance is derived in the stationary reference ...
Hang Yin   +3 more
doaj   +1 more source

Hysteretic non-linearity observer design and robust control for piezoelectric actuators

open access: yesThe Journal of Engineering, 2018
The problem of tracking control for piezoelectric actuator (PEA) is investigated in this article. In consideration of that, the control precision of PEA is being restricted due to the hysteretic effect.
Jiaming Hu   +4 more
doaj   +1 more source

Anti-windup compensator design for power system subjected to time-delay and actuator saturation

open access: yesIET Smart Grid, 2018
In this study, a delay-dependent anti-windup compensator (AWC) is designed for supplementary damping control (SDC) of flexible AC transmission system (FACTS) device to enhance the damping of inter-area oscillations
Maddela Chinna Obaiah   +2 more
doaj   +1 more source

Nonlinear optimal controls

open access: yesJournal of Computer and System Sciences, 1970
In this paper we state a necessary condition for optimality for unconstrained controls. For certain systems a constructive proof is given showing the existence of controls satisfying this condition.
Allen A. Goldstein, James S. Meditch
openaire   +2 more sources

GPIO-based rail pressure control for diesel high pressure common rail injection system

open access: yesThe Journal of Engineering, 2019
The rail pressure control in diesel high-pressure common rail (HPCR) system is considered as one of the key issues for precise control of fuel injection.
Jiapeng Wang   +3 more
doaj   +1 more source

Active Vibration Suppression of Uncertain Hose and Drogue Systems in the Presence of Actuator Nonlinearities

open access: yesIEEE Access, 2020
This paper investigates vibration suppression of uncertain hose and drogue systems in the presence of actuator nonlinearities. Firstly, a previously presented model of the hose and drogue systems is extended to describe how the hose and drogue systems ...
Liang Chang, Takao Ito
doaj   +1 more source

Valve Deadzone/Backlash Compensation for Lifting Motion Control of Hydraulic Manipulators

open access: yesMachines, 2021
In this paper, a novel nonlinear model and high-precision lifting motion control method of a hydraulic manipulator driven by a proportional valve are presented, with consideration of severe system nonlinearities, various uncertainties as well as valve ...
Lan Li   +4 more
doaj   +1 more source

Dandelion Optimizer-Based Combined Automatic Voltage Regulation and Load Frequency Control in a Multi-Area, Multi-Source Interconnected Power System with Nonlinearities

open access: yesEnergies, 2022
Frequency, voltage, and power flow between different control zones in an interconnected power system are used to determine the standard quality of power.
Tayyab Ali   +4 more
doaj   +1 more source

Controlling Resonator Nonlinearities and Modes through Geometry Optimization

open access: yesMicromachines, 2021
Controlling the nonlinearities of MEMS resonators is critical for their successful implementation in a wide range of sensing, signal conditioning, and filtering applications.
Amal Z. Hajjaj, Nizar Jaber
doaj   +1 more source

Extreme learning-based non-linear model predictive controller for an autonomous underwater vehicle: simulation and experimental results

open access: yesIET Cyber-systems and Robotics, 2019
In this study, an extreme learning-based non-linear model predictive controller (NMPC) is proposed for path following planning of an autonomous underwater vehicle (AUV) using horizontal way-points. The proposed controller comprises a kinematic controller
Biranchi Narayan Rath, Bidyadhar Subudhi
doaj   +1 more source

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