Results 21 to 30 of about 330,381 (303)

Analytical Approach for Estimating the Average Torque of Synchronous Motors by Using the Flux Density in the Air Gap

open access: yesEnergies, 2023
In this study, a generalized torque estimation method is proposed for synchronous motors, including surface permanent magnet synchronous motors (SPMSMs), synchronous reluctance motors (SynRMs), and interior permanent magnet synchronous motors (IPMSMs ...
Zheng-Feng Li   +5 more
doaj   +1 more source

Thermal analysis of induction and synchronous reluctance motors [PDF]

open access: yes, 2005
In this paper, the thermal behavior of two induction motors (2.2 and 4 kW, four poles) and two synchronous reluctance motors [(SynRMs) transverse-laminated] are investigated and compared.
Staton, D.   +10 more
core   +1 more source

Speed synchronization control method for multi motor drive system of belt conveyor

open access: yesGong-kuang zidonghua, 2023
In the production process of a multi motor drive system of belt conveyor, if individual motor speeds are not synchronized, it can cause conveyor belt breakage and mechanical and electrical equipment damage.
LI Biao
doaj   +1 more source

Impact of cross-saturation in sensorless control of transverse-laminated synchronous reluctance motors [PDF]

open access: yes, 2006
Synchronous reluctance (SyR) motors are well suited to a zero-speed sensorless control, because of their inherently salient behavior. However, the cross-saturation effect can lead to large errors on the position estimate, which is based on the ...
Pastorelli, Michele Angelo   +2 more
core   +1 more source

Cross-Saturation Effects in IPM Motors and Related Impact on Sensorless Control [PDF]

open access: yes, 2006
Permanent-magnet-assisted synchronous reluctance motors are well suited to zero-speed sensorless control because of their inherently salient behavior. However, the cross-saturation effect can lead to large errors on the position estimate, which is based ...
Pastorelli, Michele Angelo   +5 more
core   +2 more sources

Recognition of Acoustic Signals of Synchronous Motors with the Use of MoFS and Selected Classifiers

open access: yesMeasurement Science Review, 2015
This paper proposes an approach based on acoustic signals for detecting faults appearing in synchronous motors. Acoustic signals of a machine were used for fault detection. These faults contained: broken coils and shorted stator coils.
Glowacz Adam
doaj   +1 more source

OPTIMIZATION OF TIMES OF MAGNETIZATION AND DEMAGNECTION OF STOPPED FREQUENCY-REGULATED SYNCHRONOUS MOTORS

open access: yesElektrotehnìka ta Elektroenergetika, 2019
Purpose. Obtaining analytical calculated dependencies for finding the optimal time of magnetization and demagnetization of stopped frequency-regulated synchronous motors and the corresponding minimum energy loss in these motors for the regimes of ...
V.A. Volkov
doaj   +1 more source

Sensorless position control of permanent magnet motors with pulsating current injection and compensation of motor end-effects [PDF]

open access: yes, 2011
The sensorless position control of permanent-magnet motors is successfully implemented by superimposing a high-frequency voltage signal on the voltage reference or adding a high-frequency current signal to the current reference.
G Pellegrino   +14 more
core   +1 more source

Design Tradeoffs Between Constant Power Speed Range,Uncontrolled Generator Operation and Rated Current of IPM MotorDrives [PDF]

open access: yes, 2010
A closed-form approximate formulation is proposed to establish a relationship between the uncontrolled generator operation of IPM motors at high speed and the constant power speed range and drive current capabilities.
P. Guglielmi   +9 more
core   +1 more source

Comprehensive Comparative Study on Permanent-Magnet-Assisted Synchronous Reluctance Motors and Other Types of Motor

open access: yesApplied Sciences, 2023
At present, the induction motor (IM), synchronous reluctance motor (SynRM), ferrite-assisted synchronous reluctance motor (ferrite-assisted SynRM) and interior permanent magnet motor (IPM) are research hotspots, but comprehensive comparative research on ...
Guanghui Du   +3 more
doaj   +1 more source

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