On Air-Gap Approximations for Slotted Electrical Machine Models Assuming Radial Magnetic Fields

2019 ◽  
Author(s):  
Michael Okon ◽  
Christian Endisch
Keyword(s):  
Magnetic Fields ◽  
Air Gap ◽  
Electrical Machine

Study of Magnetics Performance of Inset Permanent Magnet Synchronous Machine (Inset - PMSM) Using Finite Element Method

2012 ◽  
Vol 260-261 ◽  
pp. 554-558 ◽  
Author(s):  
Jeeng Min Ling ◽  
Tajuddin Nur
Keyword(s):  
Magnetic Flux ◽  
Permanent Magnet ◽  
Mechanical Energy ◽  
Synchronous Machine ◽  
Air Gap ◽  
Electrical Machine ◽  
Permanent Magnet Synchronous Machine ◽  
Pole Structure ◽  
Rotor Core ◽  
Rotor Structure

Inset Permanent Magnet synchronous machine (Inset - PMSM) is a specific kind of permanent magnet synchronous machine. The magnetic flux in air gap of electrical machine is one of the important parameters and it imply to the electric or mechanical energy of machine. Using radial pole structure, the characteristics of magnetic field in air gap of an Inset PMSM with 6 poles and 36 slots are simulated. In this paper, we simulated and observed the influence of axial channel rotor core of Inset-PMSM to the value/quantity of magnetic flux in air gap. Magnetic flux quality is also considered in this simulation. The simulations were compared with the conventional rotor structure. The flux density per pole in the air gap was measured with three different angles, 00, 250 and 400.

scholarly journals Analytical and numerical computation of air-gap magnetic fields in brushless motors with surface permanent magnets

2000 ◽  
Vol 36 (6) ◽  
pp. 1547-1554 ◽  
Author(s):  
M. Olaru ◽  
M.I. McGelp ◽  
T.J.E. Miller ◽  
J.H. Davies ◽  
K.F. Rasmussen
Keyword(s):  
Magnetic Fields ◽  
Numerical Computation ◽  
Permanent Magnets ◽  
Air Gap ◽  
Brushless Motors

Computation of Torque of an Electrical Machine With Different Types of Finite Element Mesh in the Air Gap

2014 ◽  
Vol 50 (12) ◽  
pp. 1-9 ◽  
Author(s):  
Bishal Silwal ◽  
Paavo Rasilo ◽  
Lauri Perkkio ◽  
Miika Oksman ◽  
Antti Hannukainen ◽  
...  
Keyword(s):  
Finite Element ◽  
Air Gap ◽  
Finite Element Mesh ◽  
Electrical Machine ◽  
Element Mesh ◽  
Different Types

Drives in Systems Based on a Composite Electrical Machine with a Circular Field in the Air Gap

2019 ◽  
Vol 39 (8) ◽  
pp. 689-692
Author(s):  
A. N. Sova ◽  
I. V. Dem’yanushko ◽  
L. N. Britvin ◽  
G. S. Mazlumyan ◽  
S. A. Eruslankin
Keyword(s):  
Air Gap ◽  
Electrical Machine ◽  
Circular Field

Towards design of electrical machines from given air gap field

2017 ◽  
Vol 36 (1) ◽  
pp. 332-349
Author(s):  
Arto Poutala ◽  
Saku Suuriniemi ◽  
Timo Tarhasaari ◽  
Lauri Kettunen
Keyword(s):  
Cauchy Problem ◽  
Solution Process ◽  
Cauchy Data ◽  
Air Gap ◽  
Electrical Machines ◽  
Work Flow ◽  
Electrical Machine ◽  
Design Work ◽  
Content Type ◽  
Standard Design

Purpose The purpose of this paper is to introduce a reverted way to design electrical machines. The authors present a work flow that systematically yields electrical machine geometries from given air gap fields. Design/methodology/approach The solution process exploits the inverse Cauchy problem. The desired air gap field is inserted to this as the Cauchy data, and the solution process is stabilized with the aid of linear algebra. Findings The results are verified by solving backwards the air gap fields in the standard way. They match well with the air gap fields inserted as an input to the system. Originality/value The paper reverts the standard design work flow of electrical motor by solving directly for a geometry that yields the desired air gap field. In addition, a stabilization strategy for the underlying Cauchy problem is introduced.

Inductances of electrical machine winding with a nonuniform air-gap

1993 ◽  
Vol 76 (3) ◽  
pp. 213-218 ◽  
Author(s):  
T. J. Sobczyk ◽  
P. Drozdowski
Keyword(s):  
Air Gap ◽  
Electrical Machine

Investigation the Performance of Axial Channel Rotor in Inset Permanent Magnet Synchronous Machine

2012 ◽  
Vol 260-261 ◽  
pp. 559-564 ◽  
Author(s):  
Jeeng Min Ling ◽  
Tajuddin Nur
Keyword(s):  
Magnetic Flux ◽  
Permanent Magnet ◽  
Flux Density ◽  
High Efficiency ◽  
Air Gap ◽  
Magnetic Flux Density ◽  
Electrical Machine ◽  
Axial Channel ◽  
Conventional Machine ◽  
Rotor Core

An electrical machine is constructed with some holes or axial hollows in the rotor core for special purpose. The effects of axial hole in the proposed Inset Permanent Magnet Machine (Inset PMSM) with eight radial poles are analyzed by the magnetic flux density in air gap. The characteristics associated with magnetic flux density of every magnet poles in the air gap, magnetic flux losses in the rotor teeth, density magnetic flux in the rotor core surface and torque of the machine are also investigated and compared. Results show small direct reactance and less area in the proposed axial channel rotor core compared with the convention Inset PMSM. It imply to a lighter weight and high efficiency machine design. The finite element simulation shows the magnetic flux density per pole in air gap of the proposed rotor structure remain constant or may be a little bit drop compared with the conventional machine.

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