Results 11 to 20 of about 28,058 (211)

A review of sensorless control methods for AC motor drives

open access: yesCES Transactions on Electrical Machines and Systems, 2018
In recent years, the application of sensorless AC motor drives is expanding in areas ranging from industrial applications to household electrical appliances.
Dianguo Xu   +4 more
doaj   +1 more source

Improved rotor position estimation in extended back-EMF based sensorless PM brushless AC drives with magnetic saliency [PDF]

open access: yes, 2007
An improved extended back-EMF based sensorless control method is proposed for a brushless AC motor equipped with an interior permanent magnet rotor. It accounts for dq-axis cross-coupling magnetic saturation by introducing an apparent mutual winding ...
Bingham, Chris, Howe, D, Li, Y, Zhu, Z Q
core   +1 more source

An Online Position Error Correction Method for Sensorless Control of Permanent Magnet Synchronous Machine With Parameter Mismatch

open access: yesIEEE Access, 2021
To eliminate the influence of parameter mismatch for fundamental model based sensorless methods, an effective online position error correction method is proposed for permanent magnet synchronous machines in this paper. Based on the derived position error
T. Y. Liu   +5 more
doaj   +1 more source

Improved rotor position estimation by signal injection in brushless AC motors, accounting for cross-coupling magnetic saturation [PDF]

open access: yes, 2007
The paper presents an improved signal injection- based sensorless control method for permanent magnet brushless AC (BLAC) motors, accounting for the influence of cross-coupling magnetic saturation between the d- and q-axes.
Bingham, Chris   +4 more
core   +1 more source

Position estimation delays in signal injection-based sensorless PMSM drives [PDF]

open access: yes, 2012
The causes of position estimation delays and their effects on the sensorless control of permanent magnet synchronous motor drives are investigated. The position of a permanent magnet synchronous machine is estimated via the injection of high frequency ...
Altomare, A.   +3 more
core   +1 more source

FPGA-based implementation of the back-EMF symmetric-threshold-tracking sensorless commutation method for brushless DC-machines [PDF]

open access: yes, 2013
The operation of brushless DC permanent-magnet machines requires information of the rotor position to steer the semiconductor switches of the power-supply module which is commonly referred to as Brushless Commutation. Different sensorless techniques have
Darba, Araz   +3 more
core   +1 more source

Sensorless sensing with WiFi [PDF]

open access: yesTsinghua Science and Technology, 2015
Can WiFi signals be used for sensing purpose? The growing PHY layer capabilities of WiFi has made it possible to reuse WiFi signals for both communication and sensing. Sensing via WiFi would enable remote sensing without wearable sensors, simultaneous perception and data transmission without extra communication infrastructure, and contactless sensing ...
ZHOU, Zimu   +3 more
openaire   +2 more sources

Sensorless Switched Reluctance Machine and Speed Control: A Study to Remove the Position Encoder at High Speed of Operation

open access: yesEnergies, 2022
High-speed electrical machines have been of great research interest because of their excellent efficiency and high storage capacity. In the case of switched reluctance machines (SRMs), position feedback is required for effective operation.
Jonathan Velasco Costa   +1 more
doaj   +1 more source

High-frequency issues using rotating voltage injections intended for position self-sensing [PDF]

open access: yes, 2013
The rotor position is required in many control schemes in electrical drives. Replacing position sensors by machine self-sensing estimators increases reliability and reduces cost. Solutions based on tracking magnetic anisotropies through the monitoring of
De Belie, Frederik   +3 more
core   +1 more source

A Sensorless PM Synchronous Motor Drive for Electric Washers

open access: yesCommunications, 2007
This paper presents a complex solution for whole speed range sensorless control of interior permanent magnet synchronous motor drives. To cover an entire speed range of IPMSM without position transducer, different sensorless techniques must be employed ...
R. Filka   +2 more
doaj   +1 more source

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