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165 - Efficiency Map for an IPM Motor UP! |
Module:DP,LS,RT |
2012-01-25 |
IPM motors are not only an efficient motor that can use a wide drive range, but also a motor that can use the reluctance torque produced by the salient inductance in addition to the magnet torque produced by the permanent magnets and rotational magnetic field. Creating an efficiency map is advantageous for the motor and control designs because the efficiency varies by the rotation speed and torque. Creating an efficiency map generally requires a vast amount of calculations as well as the process to organize the results. However, an efficiency map can be generated easily using the JMAG-RT Viewer feature.
This example presents the use of the JMAG-RT Viewer to create an efficiency map for an IPM motor.
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113 - Transmission Characteristic Analysis of an Inductive Power Supply
System with Opposing Cores
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Module:FQ |
2011-02-28 |
An inductive power supply system is a device which transmits power by electromagnetic
induction without physical contact. The system can be used for various
applications, such as moving devices, rotating devices, and devices placed
in closed spaces.Because the primary side and the secondary side of a transformer
are separated by a gap, and the flux leakage and efficiency vary with the
position of the two sides, obtaining the position of each characteristic
is advantageous.This example presents the use of a magnetic field analysis
to obtain the transmission characteristics of an inductive power supply
system when the position of the primary and secondary sides changes.
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103 - Efficiency Analysis of a Permanent Magnet Synchronous Motor
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Module:DP |
2011-01-17 |
A permanent magnet synchronous motor rotates by converting electric energy
to mechanical energy.The important thing when converting energy is efficiency
indicated by the power factor for the amount of current effectively used,
as well as the percentage of output versus input.Evaluating the power factor
and input/output characteristics that account for efficiency is necessary
to design a highly efficient motor.This example presents the use of a magnetic
field analysis to evaluate the efficiency of a permanent magnet synchronous
motor.
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86 - Transmission Characteristic Analysis of an Inductive Power Supply
System
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Module:FQ |
2011-01-17 |
Inductive power supply system is a device which transmits power by electromagnetic
induction without physical contact. The system can be used for various
applications, such as moving devices, rotating devices, and devices placed
in closed space. Since the primary side and the secondary side do not contact,
magnetic flux leakage and efficiency vary with the position of the two.
Therefore, it is important to evaluate how their positions affect each
characteristic by simulation. This note presents the use of magnetic field
analysis to obtain the power transmission efficiency by moving the position
of power cable in horizontal direction and in vertical direction.
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58 - Efficiency Analysis of an IPM Motor |
Module:DP,LS |
2011-03-31 |
IPM motors use not only magnetic torque produced by a permanent magnet
and the rotating magnetic field but also reluctance torque produced by
the inductance difference between the d-axis and the q-axis. So, they are
highly efficient motor with high torque. The current phase angle β,
at which torque and efficiency are maximized, varies with rotation speed
and torque. So, the current phase angle β needs to be taken into account
for designing high efficient motor. This note presents the use of magnetic
field analysis to obtain the efficiency of an IPM motor at each current
phase with the rotation speed of 1800 rpm and the current amplitude of
4.0 Ampere when the motor is driven by sinusoidal current.
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