Results 11 to 20 of about 1,174,554 (297)

Permanent Magnet Synchronous Machines [PDF]

open access: yesEnergies, 2019
Interest in permanent magnet synchronous machines (PMSMs) is continuously increasing worldwide, especially with the increased use of renewable energy and electrification of transports.
Sandra Eriksson
doaj   +7 more sources

Novel permanent magnet brushless machines having segmented Halbach array [PDF]

open access: yes, 2013
Permanent magnet brushless machines having Halbach array exhibit a number of attractive features. Therefore, they have been increasingly applied to different market sectors, including aerospace, industrial, domestic, renewable, and healthcare, etc.
Shen, Yang
core   +6 more sources

Research on distribution of winding leakage magnetic field of three-phase dry type transformer under short-circuit condition

open access: yesEnergy Reports, 2023
Leakage flux magnitude and pattern greatly affect transformer short-circuit resistance. In this paper, finite element calculations and experimental measurements is used to calculate the leakage magnetic field of a transformer.
Tiannan Meng   +5 more
doaj   +1 more source

Analysis of temperature characteristics of power transformer withstand short circuit shock for two seconds

open access: yesEnergy Reports, 2023
The occurrence of a short-circuit fault in a transformer results in a rapid increase in the short-circuit current, and the temperature of the transformer winding rises rapidly.
Junyang Wang   +5 more
doaj   +1 more source

CARRIER SIGNAL INJECTION BASED SENSORLESS CONTROL OF PERMANENT MAGNET BRUSHLESS AC MACHINES [PDF]

open access: yes, 2012
This thesis is focused on the carrier signal injection based sensorless control of Permanent Magnet (PM) Brushless AC (BLAC) machines. Based on the machine saliency property, carrier signal injection based sensorless techniques have been well developed ...
Gong, Liming
core   +6 more sources

Effects of shrink fitting on iron losses of a permanent magnet synchronous motor with an amorphous core

open access: yesIET Electric Power Applications, 2022
In order to investigate the effects of shrink fitting on the amorphous core, a test device is designed and the magnetisation and specific iron loss characteristics of the amorphous core are measured.
Longfei Zhu   +3 more
doaj   +1 more source

Multi-objective Hierarchical Optimization of Interior Permanent Magnet Synchronous Machines Based on Rotor Surface Modification

open access: yesCES Transactions on Electrical Machines and Systems, 2022
To solve the problem of large torque ripple of interior permanent magnet synchronous motor (IPMSM), the rotor surface notch design method was used for V-type IPMSM.
Ran Xu, Wenming Tong
doaj   +1 more source

Hysteresis Loss in NdFeB Permanent Magnets in a Permanent Magnet Synchronous Machine

open access: yesIEEE Transactions on Industrial Electronics, 2022
Most permanent magnet (PM) loss studies consider only eddy current loss and neglect hysteresis. In this article, the hysteresis behavior of two NdFeB PM grades with different magnetic properties is assessed when applied in a PMSM. Data from vibrating sample magnetometer measurements and hysteresis modeling are used as a base.
Dmitry Egorov   +6 more
openaire   +4 more sources

Design and Implementation Six-Steps Inverter Using Fuzzy Sugeno in Permanent Magnet Synchronous Machines

open access: yesInternational Journal of Electrical, Energy and Power System Engineering, 2022
Controlling the speed of the permanent magnet synchronous machines plays an essential role in the industrial process and keeps the permanent magnet synchronous machines running quickly and efficiently.
Reza Sarwo Widagdo   +2 more
doaj   +1 more source

Impact of machine magnetization state on permanent magnet losses in permanent magnet synchronous machines [PDF]

open access: yes2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017
Permanent magnet synchronous machines (PMSMs) operation above based speed is typically achieved by injecting negative d-axis current to produce flux weakening. However, this increases permanent magnet (PM) losses, reducing therefore the machine efficiency.
Daniel Fernández Alonso   +3 more
openaire   +3 more sources

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