Iron Loss Calculation for High-Speed Permanent Magnet Machines
Thanks to their many merits such as high power density and fast dynamic response, the high-speed permanent magnet machines (HSPMMs) have attracted increasing industrial and domestic applications. However, the iron loss may become significantly higher at higher operating speed and frequency and it should be carefully considered in the machine …
Analysis and calculation of iron losses of high-speed permanent magnet
The iron loss of high-speed machines increases with the increasing of the alternate frequency of magnetic field in the iron, and the accurate calculation of iron loss is more important to the high ...
Stator iron loss of tubular permanent magnet machines
Analytical predictions are compared with the iron loss deduced from finite element analyses for two tubular permanent magnet machine designs, and it is shown that if a machine has a relatively ...
Loss Calculation and Thermal Analysis for High-Speed Permanent Magnet
National Engineering Research Center for Rare-earth Per manent Magnet Machines, Shenyang University of Technology, Shenyang 110870, China Corresponding author: Chao Zha ng (e-mail: zhchpm@163).
Modeling and Analysis of Short-Circuit Current for a Novel …
A key challenge for the design of dual three-phase electric machine is how to increase its electromagnetic torque and reduce short-circuit current simultaneously. In this article, a novel mixed iron-pole Halbach (MIH) magnet pattern is proposed for the electric machine. It can offer a variety of advantages. First, it improves the air gap flux density, which helps to …
(PDF) Iron and Magnet Losses and Torque Calculation of …
Iron and Magnet Losses and Torque Calculation of Interior Permanent Magnet Synchronous Machines Using Magnetic Equivalent Circuit January 2011 IEEE Transactions on Magnetics 46(12):4073 - 4080
Iron and Magnet Losses and Torque Calculation of Interior …
We present a faster and simpler approach for the calculation of iron and magnet losses and torque of an interior permanent-magnet synchronous machine (IPMSM) than finite-element methods (FEM). It uses a magnetic equivalent circuit (MEC) based on large elements and takes into account magnetic saturation and magnet eddy currents. The machine is …
A Concentrated-Flux-Type PM Machine With Irregular Magnets and Iron
Most industrial applications concern output torque, rotor mass, and utilization of rare Earth permanent-magnet (PM) material of electrical machines. Generally, it is challenging to improve these aspects simultaneously. The objective of this article is to propose a novel concentrated-flux-type PM machine with irregular magnets and iron poles (CPMIP). The …
Three Phenomenons In The Iron Of AC Machines
The core iron of the machine provides a path for the magnet field. Three phenomenons in the iron of AC machines (photo credit: electronics.stackexchange) There are a number of phenomena in the iron that are of interest as the terms keep coming up in following article.
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Permanent-magnet machines with powdered iron cores …
This paper presents a permanent-magnet servomotor, built with a powdered iron stator, which has been designed to take full advantage of the properties of the material. There are a number of important design features which are not possible with laminated cores. For example, the core back is axially extended over the end windings, the armature core components are subdivided …
Iron Loss Calculation for FSPM Machine With the PWM …
Abstract: In this article, an iron loss for the flux switching permanent magnet machine with the pulsewidth modulation (PWM) inverter supply is calculated based on the general airgap field modulation theory (GAFMT). First, the amplitudes and rotation speeds of the main space harmonics of the airgap magnetic flux density with the supply of PWM …
Iron Loss Analysis of the Permanent-Magnet Synchronous Machine Based …
Request PDF | Iron Loss Analysis of the Permanent-Magnet Synchronous Machine Based on Finite-Element Analysis Over the Electrical Vehicle Drive Cycle | Fast methods to estimate iron losses of the ...
In-Line Magnetic Separators
The Keller in-line magnetic separators are ideal for metalworking operations machining cast iron or steel. Install a magnetic separator: lnline downstream from the coolant pump on a CNC machine. On a Keller TKO pump/skimmer …
"The chemistry of US currency – Magnetic ink" Sharing …
Ferromagnetism: On a macroscopic scale, the substance can become magnetized; iron is ferromagnetic; how machines detect value of currency. Materials. US $1 bills (two minimum) US currency of various denominations (optional) Strong magnet (neodymium magnet works well; Educational Innovations M-100; $9.95) Blender (dedicated for non-food related use)
New technology could shrink bulky MRI machines …
Magnetic resonance imaging (MRI) machines are crucial tools for medical care—but even after decades of use, its underlying superconductors still have their drawbacks. ... The newly designed iron ...
Iron Loss Calculation for High-Speed Permanent Magnet Machines
This paper presents a research work on the electromagnetic loss modeling and demagnetization analysis for a high-speed permanent magnet machine (HSPMM). The iron loss is estimated by improved ...
Mining separation and sorting equipment for processes in …
As a leading global manufacturer of advanced sorting and magnet-based systems, we are continually developing new high-tech solutions to meet the challenges of our customers: when it is necessary to protect equipment from tramp iron in material recovery facilities or to process iron ore efficiently, we offer tailor-made magnet systems.
Accurate Calculation of Iron Loss Based on Frequency …
Due to the existence of rich modulation harmonics in magnetic field modulation permanent magnet machine (MFMPMM), the traditional Bertotti loss separation model is disable to satisfy the calculating accuracy of the iron core loss. With a view of improving the calculation accuracy, a frequency division and piecewise variable coefficient iron loss calculation model is established …
3 Ways to Magnetize Metal
As long as a metal has some iron in it, you can magnetize it using another magnetic metal or an electromagnet. While you need a strong magnet to make another metal magnetic, the magnetism produce will probably not be very strong; it will be sufficient to pick up a paperclip or a screw. The strength of the magnet depends upon the iron content.
Wet High Intensity Magnetic Separators | Multotec
Wet High Intensity Magnetic Separators (WHIMS) from Multotec apply magnetism, matrix rotation and gravity to achieve para-magnetic materials separation. Applications include heavy …
How does a magnetic separator work and what uses can it …
A magnetic separator consists of a powerfulmagnet that is placed or suspended from a ceiling or device. Materials can bepassed over a table top magnetic separator, while suspended magnetic separatorsoften hang over a material to remove its impurities. Magnetic separators canalso be cylinders through which o…
Permanent magnet machines with powdered iron cores and …
A permanent magnet servo motor, built with a powdered iron stator, which has been designed to take full advantage of the properties of the material, offering far superior performance to a conventionally laminated commercial machine, manufactured in the same frame. This paper presents a permanent magnet servo motor, built with a powdered iron …
Iron loss prediction in high‐speed permanent‐magnet …
magnet machines using loss model with variable coefficients ISSN 1751-8660 Received on 16th January 2020 Revised 6th April 2020 Accepted on 18th May 2020 ... predict iron loss of machines at an arbitrary frequency, the comparison shows that the accuracy of the three-term model is higher. In addition, experiments validate that proposed three ...
A machine-learned spin-lattice potential for dynamic
A machine-learned spin-lattice interatomic potential (MSLP) for magnetic iron is developed and applied to mesoscopic scale defects. It is achieved by augmenting a spin-lattice Hamiltonian with a ...
Manufacturing Influence on the Magnetic Properties …
Keywords - Electric machines, magnetic materials, iron losses, cobalt-iron, electromagnetic measurements, finite-element simulations, ... For the magnetic and iron loss measurements each sample ...
Demagnetization
1. high, maximum field strength | 2. monotonically reducing amplitudes in the discharge | 3. perfect, fine discharge. With the Maurer Degaussing ® technology, Maurer Magnetic has fully utilised all physical options for economical, efficient …
Review article Iron loss models: A review of simplified …
This paper gives a broad overview of methods to model core losses from the magnetization of soft magnetic iron cores in electrical machines. The review study starts with some commonly used models of loss separation for hysteresis losses and eddy current losses. The study links the models to physical models of magnetization, considering domain ...
Professional Magnet Machines and Supplies – MPRO
It works really well to make nice and clean looking magnets. Easy to use. Magnet Machine Round 2.25". Professional Grade Equipment and Customer Service. I couldn't be happier with …
Magnetic separation: A review of principles, devices, and …
Conventional magnetic separation devices are widely used for the removal of tramp iron from a variety of feed materials and for the beneficiation of ferrous ores. These devices for separation …