Results 11 to 20 of about 125,791 (264)

Research on Optimization Method of Non-Excavation Crossing Magnetic Target Parameters

Cejing jishu, 2023
In view of the problem that the magnetic induction intensity of the magnetic target cannot continue to increase like the theoretical value due to the existence of magnetic saturation, and the theoretical guidance range of the magnetic target is different
HUANG Yang, CHE Yang, FENG Fuping, JIANG Chunlei, DU Weiqiang, ZHANG Zhengju   +5 more
doaj   +1 more source

Analytical modeling of armature magnetic field in spoke-type permanent magnet machine considering saturation of magnetic bridge

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, LI Jiayu, FAN Chenyang, LI Zhixin, WANG Qingyan   +4 more
doaj   +1 more source

Iron-Oxide Nanoparticles with High Saturation Magnetization and Estimating Their Mean Magnetic Size Using Magnetization Curve [PDF]

Iranian Journal of Chemistry & Chemical Engineering
Superparamagnetic 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

Improved Current and MTPA Control Characteristics Using FEM-Based Inductance Maps for Vector-Controlled IPM Motor

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, Toshihiko Noguchi, Ryosuke Akaki, Feri Yusivar   +3 more
doaj   +1 more source

Performance Analysis of Single Phase Short Circuit of Three Phase Induction Motor Based on the Method of Field and Circuit

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

Analysis and Design of an Axial Flux Permanent Magnet Motor for in-Wheel System Using a Novel Analytical Method Combined With a Numerical Method

IEEE Access, 2020
Recently, a motor for an in-wheel system—which is advantageous when applied to electric vehicles and self-driving systems—has received much attention.
Byung-Oh Tak, Jongsuk Ro
doaj   +1 more source

Modeling and Control of a DC-DC Buck–Boost Converter with Non-Linear Power Inductor Operating in Saturation Region Considering Electrical Losses

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, Felipe Gonzalez-Montañez, Jesus Ulises Liceaga-Castro, Victor Manuel Jimenez-Mondragon, Irma Siller-Alcala   +4 more
doaj   +1 more source

Magnetic Field and Torque Output of Packaged Hydraulic Torque Motor

Energies, 2018
Hydraulic torque motors are one key component in electro-hydraulic servo valves that convert the electrical signal into mechanical motions. The systematic characteristics analysis of the hydraulic torque motor has not been found in the previous research,
Liang Yan, Zihao Duan, Qiongfang Zhang, Shiyong Niu, Yifeng Dong, Christopher Gerada   +5 more
doaj   +1 more source

Core Loss Analysis of Interior Permanent Magnet Synchronous Machines under SVPWM Excitation with Considering Saturation

Energies, 2017
Core loss is one of the significant factors affecting the high power density of permanent magnet machines; thus, it is necessary to consider core loss in machine design. This paper presents a novel method for calculating the core loss of permanent magnet
Yanli Feng, Chengning Zhang
doaj   +1 more source