Results 81 to 90 of about 14,243 (235)

A Layered Composite Control Strategy for Voltage Source PWM Rectifiers Based on Improved Sliding Mode and Back‐Propagation Neural Network PID

open access: yesElectronics Letters, Volume 62, Issue 1, January/December 2026.
To address the poor dynamic response and limited disturbance rejection of conventional dual‐loop PI control in three‐phase voltage source PWM rectifiers (VSRs), this paper proposes a composite control strategy featuring an improved sliding mode control (SMC) for the voltage outer‐loop and a back‐propagation neural network (BP‐PID) controller for the ...
Xinyue Liang, Cheng Liu, Jiaqi Li
wiley   +1 more source

A Novel Sensorless Approach for Speed and Displacement Control of Bearingless Switched Reluctance Motor

open access: yesApplied Sciences, 2020
The bearingless concept is a plausible alternative to the magnetic bearing drives. It provides numerous advantages like minimal maintenance, low cost, compactness and no requirement of high-performance power amplifiers. Controlling the rotor position and
Pulivarthi Nageswara Rao   +4 more
doaj   +1 more source

Distance Measurement for Sensorless 3D US [PDF]

open access: yes, 2004
Previously it was thought that speckle-based distance measurement techniques worked best over very small distances. We show that this is not necessarily the case. This result has significance for the design of accurate sensorless freehand 3D ultrasound systems that are convenient to use in a clinical setting.
Peter Hassenpflug   +3 more
openaire   +1 more source

A Comparative Investigation of the Performance of Vernier Generators With Open‐Slot and Split‐Tooth Stator Configurations With a Focus on Improving Torque Ripple and Power Factor

open access: yesIET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
This research is presented in the field of design of outer rotor permanent magnet vernier generators with a performance comparison approach between open slot and split tooth stator structures with the aim of reducing cogging torque ripple and improving power factor.
Omid Maktabdar   +2 more
wiley   +1 more source

Vector control of a sensorless brushless machine

open access: yes, 2022
LAUREA MAGISTRALELo scopo di questa tesi è quello di realizzare il controllo sensorless di una macchina brushless, utilizzando differenti tecniche basate su osservatori. Verranno fatte prove comparative al variare dei parametri. Inizialmente verrà
Coppi, Gaia Giovanna Annamaria Margherita
core  

Position and Speed Control of Brushless DC Motors Using Sensorless Techniques and Application Trends

open access: yesSensors, 2010
This paper provides a technical review of position and speed sensorless methods for controlling Brushless Direct Current (BLDC) motor drives, including the background analysis using sensors, limitations and advances.
Jaime Gómez-Gil   +2 more
doaj   +1 more source

Improvements on a Sensorless Scheme for a Surface-Mounted Permanent Magnet Synchronous Motor Using Very Low Voltage Injection

open access: yesEnergies, 2020
Sensorless control of electrical drives is still a difficult task, especially in the lower speed region. Moreover, when the machine has a low saliency such as in the case of Surface Mounted Permanent Magnet Synchronous Motor (SMPMSM), high frequency ...
Jaime Pando-Acedo   +3 more
doaj   +1 more source

Performance Improvement of PMSG‐Based Wind Energy Systems via Sensorless FS‐Predictive Current Control With MRAS and MPPT‐OTC Integration

open access: yesIET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
This paper proposes a hybrid sensorless control strategy for a permanent magnet synchronous generator (PMSG)‐based wind energy conversion system (WECS). The approach integrates finite‐set predictive current control (FS‐PCC), a model reference adaptive system (MRAS) estimator and an optimal torque control maximum power point tracking (MPPT‐OTC) method ...
Hicham Sayhi   +7 more
wiley   +1 more source

Sensorless low-speed Control for Synchronous Reluctance Motor

open access: yes, 2022
reservedIl presente lavoro ha avuto l’obiettivo di poter mettere alla prova due metodi di controllo sensorless applicati ai motori sincroni a riluttanza.
SCLAFANI, TOMMASO
core  

Sensorless Tool Stiffness Monitoring in Buffing

open access: yesInternational Journal of Automation Technology, 2014
In current practice, the buffing process required to finish the surface of mechanical parts is performed manually by a technical expert as it requires a delicate adjustment of the buffing force. The automation of this process is desirable in an effort to shorten the process time and reduce labor cost.
Ryo Koike   +6 more
openaire   +1 more source

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