Results 91 to 100 of about 14,243 (235)

Speed‐Sensorless Model‐Free Predictive Torque Control for Induction Motor Drive

open access: yesIET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
A speed‐sensorless MF‐PTC based on EKF is proposed for a 2L‐VSI‐fed IM drive to reduce the overall cost and complexity of the drive system. The rotor speed is estimated using the EKF. The instant rotor flux is also estimated using the EKF based on the rotor current model of IM, whereas a direct machine model is employed in general to estimate the rotor
Md. Belal Hossen, Md. Habibullah
wiley   +1 more source

Sensorless technique for BLDC motors [PDF]

open access: yes, 2006
Commutation is a fundamental feature of all DC machines. In conventional DC machines the commutation function is performed by the commutator and brushes. These act as both position sensors and switches. The mechanical commutator has obvious disadvantages.
Gambetta, Daniele Morco
core  

Sensorless position estimation in fault-tolerant permanent magnet AC motor drives with redundancy.

open access: yes, 2010
Safety critical applications are heavily dependent on fault-tolerant motor drives being capable of continuing to operate satisfactorily under faults.
An, Jae Sam
core  

Permanent-magnet flux adaptation for sensorless synchronous motor drives

open access: yes, 2018
This paper deals with estimation of the permanent-magnet (PM) flux in sensorless synchronous motor drives. A back-electromotive-force (back-EMF)-based observer is augmented with an adaptation law for the PM flux magnitude.
Jarno Kukkola   +9 more
core   +1 more source

SynRM Sensorless Torque Estimation Using High Frequency Signal Injection [PDF]

open access: yes, 2019
International Symposium on Sensorless Control for Electrical Drives, SLED 2019 (10th. 2019. Turin, Italy)This work was supported in part by the Research, Technological Development and Innovation Programs of the Spanish Ministry Economy and ...
Guerrero Muñoz, Juan Manuel   +11 more
core   +1 more source

Sensorless control strategy of interior permanent magnet synchronous motor

open access: yesGong-kuang zidonghua, 2019
To improve steady-state and dynamic performance of sensorless control of permanent magnet synchronous motor with medium and high speed, and solve the problem that traditional quadrature phase-locked loop can not operate effectively when the motor is ...
GU Mingyue, LIU Ya
doaj   +1 more source

Sensorless control of a Reluctance Synchronous Machine

open access: yes, 2022
This thesis shows how to realize a sensorless control in all speeds range, including the position control for a reluctance synchronous machine. However, its main target of the thesis is to explain the development of a real sensorless control, the found ...
Mattiazzo, Matteo
core  

Accuracy and robustness improvement in sensorless PMSM drives at low-speed by direct-axis current injection

open access: yes, 2012
Speed control accuracy and robustness in sensorless drives based on non-salient PMSMs, especially in the low-speed region, are critical issues mainly due to the low amplitude of the back-EMF, being the main information that state observers are normally ...
Roberto Petrella   +3 more
core   +1 more source

Impact of switching functions on sliding mode observer in sensorless PMSM drives

open access: yesTạp chí Khoa học và Công nghệ
The Sliding Mode Observer (SMO) algorithm has emerged as a promising solution for estimating the position and speed of motors, effectively replacing traditional physical sensors.
Nguyen Khanh Quang   +3 more
doaj   +1 more source

Observer-based Fault Detection and Diagnosis for Mechanical Transmission Systems with Sensorless Variable Speed Drives

open access: yes, 2015
Observer based approaches are commonly embedded in sensorless variable speed drives for the purpose of speed control. It estimates system variables to produce errors or residual signals in conjunction with corresponding measurements. The residual signals
Gu, Fengshou   +3 more
core  

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