Results 41 to 50 of about 1,793,064 (408)

Analysis of Copper Loss of Permanent Magnet Synchronous Motor With Formed Transposition Winding

open access: yesIEEE Access, 2021
In recent years, the hairpin winding flat wire motor has received more and more attention because of its high power density and high torque, but the problem of increased AC copper loss caused by the increase of its wire diameter has restricted the use of
Yanping Liang   +5 more
doaj   +1 more source

Energetic Factors of a Frequency-Controlled Synchronous Electric Drive

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2018
As compared to asynchronous frequency-controlled electric drives, synchronous drives are characterized by lower power losses, rigid mechanical characteristics without speed feedback and by the simplest law of frequency control (when the voltage changes ...
B. I. Firago, S. V. Aleksandrovsky
doaj   +1 more source

Permanent magnet synchronous motor development on the base of induction motor with squirrel-cage rotor [PDF]

open access: yes, 2016
Представлена методика расчета и выбора параметров синхронного двигателя с постоянными магнитами при известной геометрии статора базового асинхронного двигателя с короткозамкнутым ротором.
Петренко, Александр Николаевич   +3 more
core   +1 more source

Synchronous motors stability estimation methodologies under three-phase faults in power supply grids

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2019
This  article  presents  the  three  phase  short  circuit  impact  on  synchronous motors stability research results. The analysis of the researches done in this field shows that they neglect following features in motor operation: the voltage sag form ...
A. I. Fedotov   +2 more
doaj   +1 more source

Current Harmonic Suppression for Dual Three-Phase Permanent Magnet Synchronous Motor Drives

open access: yesIEEE Access, 2019
Due to motor asymmetry and system nonlinear factors, the dual three-phase permanent magnet synchronous motor (PMSM) drives produce a large number of current harmonics during operation. Based on the Vector Space Decoupling model, the six-phase currents of
Zhihuang Ruan, Wenxiang Song, Yan Yan
semanticscholar   +1 more source

A Cre‐dependent lentiviral vector for neuron subtype‐specific expression of large proteins

open access: yesFEBS Letters, EarlyView.
We designed a versatile and modular lentivector comprising a Cre‐dependent switch and self‐cleaving 2A peptide and tested it for co‐expression of GFP and a 2.8 kb gene of interest (GOI) in mouse cortical parvalbumin (PV+) interneurons and midbrain dopamine (TH+) neurons.
Weixuan Xue   +6 more
wiley   +1 more source

A Back-EMF Estimation Error Compensation Method for Accurate Rotor Position Estimation of Surface Mounted Permanent Magnet Synchronous Motors

open access: yesEnergies, 2017
This paper proposes a back electromotive force estimation error compensation method for accurate rotor position estimation of surface mounted permanent magnet synchronous motors.
Tae-Uk Jung   +2 more
doaj   +1 more source

Intelligent Permanent Magnet Motor-Based Servo Drive System Used for Automated Tuning of Piano

open access: yesEnergies, 2021
This paper presents an intelligent permanent magnet synchronous motor-based servo drive system used in automated piano tuning applications. The permanent magnet synchronous motor-based drives are able to improve the accuracy of the piano tuning process ...
Ying Zhou, Zuyu Wu, Yutong Wu
doaj   +1 more source

Motor run-up system [PDF]

open access: yes, 1975
A starting system is described for bringing a large synchronous motor up to speed to prevent large power line disturbances at the moment the motor is connected to the power line.
Daeges, J. J.
core   +1 more source

Position-sensorless control of permanent-magnet-assisted synchronous reluctance motor [PDF]

open access: yes, 2003
The sensorless control of permanent-magnet-assisted synchronous reluctance (PMASR) motors is investigated, in order to conjugate the advantages of the sensorless control with full exploitation of the allowed operating area, for a given inverter.
Guglielmi, Paolo   +3 more
core   +1 more source

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