Permanent Magnet
Cogging Torque Reduction of Sandwiched Stator Axial Flux Permanent Magnet Brushless DC Motor using Magnet Notching Technique
... effective magnet shaping technique is considered in this ...Conventional permanent magnet skewing technique is already explained in earlier ...conventional permanent magnet skewing, ...
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Sensorless Permanent Magnet Drive Design
... The overall design process of modern high performance and cost effective permanent magnet drives is still a complex multi physic task, as shown in Fig 1. [1]. In order to achieve both a high efficiency and ...
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NOVEL METHODS FOR PERMANENT MAGNET DEMAGNETIZATION DETECTION IN PERMANENT MAGNET SYNCHRONOUS MACHINES
... The electromagnetic (EM) torque, excluding the reluctance torque, is proportional to the quadrature-axis current, which is in accordance with the electrical model of a surface mounted permanent magnet ...
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Analytical Calculation of the Energy in a Permanent Magnet
... a permanent magnet, two types of energy are added: the magnetic field energy and the demagnetizing ...the magnet volume, and the demagnetizing energy is linked to the magnet ...a magnet ...
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Permanent magnet array for the magnetic refrigerator
... conventional permanent magnet arrangements do not provide the necessary field strengths for ...a permanent magnet array which can provide magnetic fields typically above ...
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Electrical transients in permanent magnet synchronous machines.
... a permanent magnet synchronous machine will be operated at a fixed terminal voltage and frequency, loaded at some torque and all other quantities are generally unknown including the load ...a ...
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Magnet Eddy Current Loss Reduction in Permanent Magnet Machines
... Abstract— Magnet eddy current loss is very important for any types of permanent magnet machines, especially for high-speed permanent magnet machine since it increases significantly with ...
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Digital Control of Permanent Magnet Synchronous Motor
... rpm Permanent Magnet Synchronous Motor and takes into consideration torque changes with transient phases by controlling the flux directly from the rotor ...
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Loss Minimization in Surface Permanent-Magnet Synchronous Motor Drives
... ABSTRACT: The loss minimization in surface permanent magnet synchronous motor drives is investigated. In order to reduce motor losses based on theoretical analysis, a Loss model controller is introduced to ...
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Permanent magnet structure for generation of magnetic fields
... A permanent magnet structure for maximizing the flux density per weight of magnetic material comprising a hollow body flux source for generating a magnetic field in the central gap of the hollow body, the ...
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Influence of Rotor Magnet Shapes on Performance of Axial Flux Permanent Magnet Machines
... flux Permanent Magnet (AFPM) machines, due to its high torque capability, high power density and compact size, are the most suitable candidates for in-wheel Electric Vehicle ...rotor magnet shape ...
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Interior Permanent Magnet Synchronous Motor Drives
... Permanent Magnet Synchronous Motors (PMSM) are attracting growing attention for a wide variety of industrial applications, from simple applications like pumps or fans to high performance drive like a ...
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Axial Flux Permanent Magnet coreless machine
... Flux Permanent Magnet (AFPM) machines utilise Permanent Magnets (PM) in their design and the direction of the magnetic flux flow within AFPM is parallel to the rotor ...
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Concepts and Properties of Controlled Permanent Magnet Drives
... converter-fed permanent magnet motor could alternatively be operated in two basically different states − the vector control mode or alternatively the brushless dc, also known as electronically commutated ...
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Prediction of Radiated EMI from Permanent Magnet Synchronous Motor Based on Field-circuit Coupled Method
... Abstract—The Permanent magnet synchronous motor (PMSM) has been widely applied in a pulse width modulation inverter-fed adjustable speed drive (ASD) ...
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Application of Halbach magnet array in designing a permanent magnet synchronous machine
... novel permanent magnet machine ...using permanent magnets. Hence, a permanent magnet synchronous machine is designed using software and the finite element method is applied on the ...
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Carbide/nitride grain refined rare earth-iron-boron permanent magnet and method of making
... a permanent magnet wherein 1) a melt is formed having a base alloy composition comprising RE, Fe and/or Co, and B (where RE is one or more rare earth elements) and 2) TR (where TR is a transition metal ...
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Optimization of Permanent Magnet Skew in Permanent Magnet Linear Synchronous Motors Using Finite Element and Statistical Method
... ted Permanent Magnet Machines,” Industry Applications Conference, 2001, Thirty-Sixth IAS Annual Meeting, Con- ference Record of the 2001 IEEE, Chicago, 2001, ...
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Comparative study of permanent magnet synchronous and permanent magnet flux switching machines for high torque to inertia applications
... the permanent magnet presence on the rotor, made by materials with higher mass density compared to the rotor ones (17-4 PH Stainless Steel with mass density 7820 / ...the permanent magnet was ...
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Investigative study of a novel permanent magnet flux switching machine employing alternate circumferential and radial permanent magnet
... Permanent Magnet Flux Switching Machine (PMFSM) was first introduced as a single-phase alternator by (Rauch and Johnson, 1955) while the three-phase version was first reported in 1997 (Hoang et ...
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