Results 71 to 80 of about 2,273 (186)
Distance Measurement for Sensorless 3D US [PDF]
, 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
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Automatic Tuning of Extended Kalman Filter in Sensorless Synchronous Reluctance Motor Drives
IEEE Open Journal of Power ElectronicsA substantial reduction in the human environmental footprint can be achieved through the use of more efficient motors, such as synchronous reluctance motors (SynRM). As low-cost motors, SynRMs are commonly employed in sensorless AC drives.
Saverio Rigon +3 more
doaj +1 more source
Energies, 2018 This paper presents an Optimized Sensorless Charge Balance (OSCB) controller based on a damped current model for flyback converter operating in Discontinuous Conduction Mode (DCM). By solving total differential equations of non-ideal transformer currents,
Xiaofeng Zhang +3 more
doaj +1 more source
MathematicsPrecise speed estimation of sensorless induction motor (SIM) drives remains a significant challenge, particularly at zero and very low speeds. This paper proposes a mathematically modeled and enhanced stator current-based Model Reference Adaptive System (
Mohamed S. Zaky +2 more
doaj +1 more source
PWM-Based Speed and Position Estimations for Permanent Magnet Synchronous Machines
Applied SciencesA PWM-based rotor position and speed estimator is presented in this study. The method is based on the measurement of the current response to conventional space vector pulse width-modulated voltage (SV-PWM) for PMSM drive applications.
Saleh B. Shlimet, Antonio Griffo
doaj +1 more source
Sensorless SPMSM Control for Heavy Handling Machines Electrification: An Innovative Proposal
EnergiesThe electrification of road vehicles is a relatively mature sector, while other areas of mobility, such as construction machinery, are just beginning their transition to electric solutions.
Marco Bassani +2 more
doaj +1 more source
Devices and Techniques for Sensorless Adaptive Optics
, 2012 Minimizing the aberrations is the basic concern of all the optical system designers. For this purpose, a large amount of work has been carried out and plenty of literature can be found on the subject. Until the last twenty years, the large majority of the optical design was relat‐ ed to “static” optical systems, where several opto-mechanical parameters,
S. Bonora +4 more
openaire +3 more sources
On Modelling and State Estimation of DC Motors
ActuatorsDirect current motors are widely used in a plethora of applications, ranging from industrial to modern electric (and intelligent) vehicle applications.
Erik Arévalo +4 more
doaj +1 more source
Development of a Speed Sensorless IM Drives
, 2013 The primary objective of this paper is to elimination of the problem of sensitivity to parameter variation of induction motor drive. The proposed sensorless strategy is based on an algorithm permitting a better simultaneous estimation of the rotor speed and the stator resistance including an adaptive mechanism based on the lyaponov theory. To study the
Dj. Cherifi, Y. Miloud, A. Tahri
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Adaptive-Sensorless Monitoring of Shipping Containers
2025 IEEE International Conference on Big Data (BigData)Published in 2025 IEEE Big ...
Lingqing Shen +3 more
openaire +3 more sources