Results 1 to 10 of about 599,512 (246)

A Composite Variable Structure PI Controller for Sensorless Speed Control Systems of IPMSM [PDF]

open access: goldEnergies, 2022
In the speed control system of an Interior Permanent Magnet Synchronous Motor (IPMSM) without a speed sensor, PI controllers using only a fixed set of parameters cannot achieve accurate tracking of the estimated speed in a wide speed domain and also ...
Weidong Feng   +3 more
doaj   +2 more sources

SYNTHESIS OF THE TECHNICAL CONTROL SYSTEMS WITH VARIABLE STRUCTURE

open access: greenНаучный вестник МГТУ ГА, 2016
Change. Also the object as a result of an adverse effect is considered. The formal problem definition of synthesis of hardy management system is considered. Model choice criteria ensemble is set.
I. V. Prokopyev
doaj   +1 more source

Nonlinear Robust Control by a Modulating-Function-Based Backstepping Super-Twisting Controller for a Quadruple Tank System

open access: yesSensors, 2023
In this paper, a robust nonlinear approach for control of liquid levels in a quadruple tank system (QTS) is developed based on the design of an integrator backstepping super-twisting controller, which implements a multivariable sliding surface, where the
Italo Aranda-Cetraro   +3 more
doaj   +1 more source

A New Strategy for Combining Nonlinear Kalman Filters With Smooth Variable Structure Filters

open access: yesIEEE Access, 2023
Bayesian filters exemplified by the celebrated Kalman Filter (KF), and its non-linear variants rely on a fairly accurate state-space model of the system under study.
Salman Akhtar   +3 more
doaj   +1 more source

Second-order terminal sliding mode control based on perturbation estimation for nanopositioning stage

open access: yesIET Cyber-systems and Robotics, 2020
This study proposes a robust second-order terminal sliding mode control with perturbation estimation (2OTSMCPE) strategy with application to trajectory tracking control of the flexure-based nanopositioning system.
Ali Al-Ghanimi   +7 more
doaj   +1 more source

An adaptive fractional fuzzy sliding mode controlled PSS for transient stability improvement under different system uncertainties

open access: yesIET Smart Grid, 2021
An adaptive fractional fuzzy sliding mode controller (AFFSMC) based power system stabilizer (PSS) is proposed for damping out low‐frequency oscillations in single machine infinite bus and multimachine power systems under various operational contingencies.
Shiba R. Paital   +3 more
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

Adaptive double-integral-sliding-mode-maximum-power-point tracker for a photovoltaic system

open access: yesThe Journal of Engineering, 2015
This study proposed an adaptive double-integral-sliding-mode-controller-maximum-power-point tracker (DISMC-MPPT) for maximum-power-point (MPP) tracking of a photovoltaic (PV) system.
Bidyadhar Subudhi, Raseswari Pradhan
doaj   +1 more source

Switching frequency regulation in sliding mode control for synchronous buck converter

open access: yesThe Journal of Engineering, 2018
This study aims to control the switching frequency of synchronous buck (SR-buck) converters using the second-order sliding mode controller by prescribed control law.
Songbin Liu, Zhiyuan Feng, Yu Cai
doaj   +1 more source

Decentralised control and fault ride-through of a multi-microgrid system

open access: yesIET Smart Grid, 2019
A multi-microgrid (MMG) system comprises of a cluster of microgrids interconnected for reliable and efficient operation in grid connected as well as islanded modes. In this study, the fault-ride-through capability of an MMG system is addressed.
Saroja Kanti Sahoo   +3 more
doaj   +1 more source

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