Results 11 to 20 of about 1,966,146 (289)
CARRIER SIGNAL INJECTION BASED SENSORLESS CONTROL OF PERMANENT MAGNET BRUSHLESS AC MACHINES [PDF]
, 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
Nuclear magnetic resonance [PDF]
, 2012 Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32166This article reviews the principles and methods of nuclear magnetic resonance spectroscopy, and gives examples of applications carried out at our Facility, which illustrate the ...
Molins i Montserrat, Mª Antònia +4 more
core +7 more sources
Influence of Magnetic Saturation of Iron-Core on Performance of Thyristor Phase Control Circuit [PDF]
, 1982 The influence of magnetic saturation of iron-core on the performance of thyristor phase control circuit with series RLC elements is described. The circuit is analyzed by applying an approximate model of three straight lines to the flux Φ vs.
Nakanishi, Sen-ichiro +2 more
core +1 more source
CES Transactions on Electrical Machines and Systems, 2021 This paper deals with an analytical method to effectively calculate the inductance of an exterior-rotor switched reluctance motor (SRM), which evaluates the winding inductance of both the active section and the end section, accounting for the influence ...
Minjie Zhang, Nasir Ali, Qiang Gao
doaj +1 more source
电力工程技术, 2023 In order to solve the accurate calculation problem of spoke-type permanent magnet machines with multi-layer winding structure in the magnetic field, based on the two-dimensional subdomain analytical modeling idea, a magnetic density analytical ...
CHEN Zhenfei +4 more
doaj +1 more source
Nanocrystalline M-type hexaferrite powders: preparation, geometric and magnetic propertiess [PDF]
, 1994 Co-Ti-Sn-Ge substituted M-type bariumhexaferrite powders with mean grain sizes between about 10 nm and about 1 ¿m and a narrow size distribution were prepared reproducibly by means of a modified glass crystallization method.
Gornert, P. +29 more
core +2 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
Energies, 2023 Some major problems in the motor drive are the overshoot or undershoot of transient response characteristics and a parameter mismatch due to magnetic saturation. This study proposed a 3D inductance map combined with a maximum-torque-per-ampere (MTPA) map
Faiz Husnayain +3 more
doaj +1 more source
Journal of Harbin University of Science and Technology, 2017 According to the short circuit fault occurs in single-phase winding of three-phase induction motor， based on the basic theory of electrical machinery，adopting the research method of combining field and circuit， taking an 11 kW cage type three-phase ...
MENG Da-wei, GAO Xiang
doaj +1 more source