Results 11 to 20 of about 415,678 (293)
Magnetic Field Saturation in the Riga Dynamo Experiment [PDF]
, 2000 After the dynamo experiment in November 1999 had shown magnetic field self-excitation in a spiraling liquid metal flow, in a second series of experiments emphasis was placed on the magnetic field saturation regime as the next principal step in the dynamo
A. Gailitis +16 more
core +2 more sources
Mathematics, 2023 The present work proposes a nonlinear model of a buck–boost DC-DC power converter considering the nonlinear magnetic characteristics of the power inductor and electrical losses of the system.
Ernesto Molina-Santana +4 more
doaj +1 more source
Steady-state analysis and stability of synchronous reluctance motors considering saturation effects [PDF]
, 2015 This paper investigates the influence of the magnetic saturation on the performance of a Synchronous Reluctance Motor (SynRM) at steady-state. In addition, the stability limits for the SynRM are studied using a suggested more accurate method.
Ibrahim, Mohamed +2 more
core +1 more source
High-Efficiency Drive Method of Adjustable Field IPMSM Utilizing Magnetic Saturation
IEEE Access, 2022 This paper describes a high-efficiency drive method of an adjustable field Interior Permanent Magnet Synchronous Motor (IPMSM) utilizing magnetic saturation.
Kiyohiro Iwama, Toshihiko Noguchi
doaj +1 more source
Improved rotor position estimation in extended back-EMF based sensorless PM brushless AC drives with magnetic saliency [PDF]
, 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
World Electric Vehicle Journal, 2020 The accurate initial rotor position of a permanent magnet synchronous motor (PMSM) is necessary for starting the motor, and for the position sensorless control method adopted by a PMSM control system under some working conditions.
Zhiqiang Wang +5 more
doaj +1 more source
IEEE Access, 2020 The direct axis (d-axis) stator winding and field winding of a wound-rotor synchronous motor (WRSM) are mutually coupled much like the primary and secondary windings in a transformer are. As the field winding has a large number of turns, small variations
Daeyeon Hwang, Bon-Gwan Gu
doaj +1 more source
Magnetic inflation and stellar mass. V. Intensification and saturation of M-dwarf absorption lines with Rossby number [PDF]
, 2019 In young Sun-like stars and field M-dwarf stars, chromospheric and coronal magnetic activity indicators such as Hα, X-ray, and radio emission are known to saturate with low Rossby number (Ro lesssim 0.1), defined as the ratio of rotation period to ...
Mann, Andrew W. +4 more
core +3 more sources
Iron-Oxide Nanoparticles with High Saturation Magnetization and Estimating Their Mean Magnetic Size Using Magnetization Curve [PDF]
Iranian Journal of Chemistry & Chemical EngineeringSuperparamagnetic nanoparticles with high saturation magnetism and small average size were synthesized by the economic co-precipitation method. FeCl2.4H2O and FeCl3.6H2O were used as salt agents and NaOH as precipitant. Different reaction conditions were
Hossein Asnaashari Eivari
doaj +1 more source
Design and test of a magnetic saturation-type fault current limiter
The Journal of Engineering, 2019 Fault current limiter (FCL) is an effective technique for the fault isolation and protection in the direct current (DC) grid. In this study, a magnetic saturation-type FCL is designed and tested. Firstly, its basic principle is introduced.
Lu Qu, Rong Zeng, Zhanqing Yu, Ge Li
doaj +1 more source