SPM Motor
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[JAC034] Demagnetization Analysis of an SPM Motor
This note presents the use of a magnetic field analysis to evaluate the demagnetizing ratio distribution of an of an SPM motor by changing the current flow.
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[L-MB-30] Accurately Identifying Motor Characteristics During Control with JMAG-RT
In general, the characteristics of motor models used in control circuit simulation of a motor drive system are often assumed to be constant when the motor is in drive mode.
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[L-MO-09] Easily Creating Complex Coil Ends Geometry in a Template
The introduction of square wire coils and higher motor speeds no longer allow coil AC losses to be ignored as a loss factor. Coil AC losses are caused by the skin effect and prox…
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Design of a High-Density and High-Output Motor Using Optimization Analysis by GA
Koji Kokue, Tamagawa Seiki Co.,Ltd.
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Simple Motor Vibration Prediction Method and Vibration Suppression Appropriate Analysis Case Study
Isamu Nitta, NSK Ltd.
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[JAC285] Integrated Magnetization Analysis of an SPM Motor by Magnetizing Multiple Times
In this example, the magnets are magnetized more than once with the rotor at different positions to evaluate the magnetization distribution in the magnets while also accounting fo…
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[W-MO-114] Comparison of Efficiency Map with Measurement
This document compares an efficiency map obtained with simulations with an efficiency map consisting of actual measurements, achieving an error of 1% or less for entire regions.
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[W-MB-167] Motor Plant Model Considering AC Loss for Control Calibration
Control parameter calibrations on Model-In-the-Loop Simulation (MILS) with Finite Element Analysis (FEA) based motor models is expected to be a standard procedure in the Model-Bas…
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[W-MO-164] Investigation in the Accuracy of FEA Based Efficiency Maps for PMSM Traction Machines
In this report, three methods are compared on a PMSM showing that the accurate version is necessary for advanced applications such as EV. It shows that the accurate version based …
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[W-MB-157] Evaluation of the Effect of Resolver Eccentricity on PM Motor Torque Ripple Control
VR-type resolvers are widely used as angle sensors to control the rotation of traction motors for electric vehicles and hybrid vehicles.
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[W-MB-151] Accuracy of Motor Plant Model Required for Control Calibration
Control calibration is time-consuming work because it is carried out for every operating point using the actual machine.
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[W-MB-155] Accuracy of 6-Phase Motor Plant Models for Detecting Faults at Disconnections
Multiphase motors have become widely used, and a fail-safe function can be realized by providing a system with redundancy.
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[W-MB-152] Accuracy of Motor Plant Model Required for ECU testing
ECU testing is performed under various conditions from the normal to the abnormal system.
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[W-MB-153] Accuracy and Speed Verification of Motor Plant Models Accounting for Spatial Harmonics
This document uses JMAG-RT, which is a type of plant model, to show the relationship between the resolution and accuracy of each axis (mechanical angle, current amplitude, and cur…
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[W-MB-156] Improving Motor Plant Model Accuracy by Accounting for Harmonic Iron Loss
Because of the acceleration of the motor and the effect of the PWM drive, it is becoming more important to account for loss in order to improve accuracy even for analysis using mo…
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Electric Pump Vibration Analysis (Establishment of the Magnetic Field-Structural Coupled Analysis Method)
Takafumi Seki, Panasonic Corporation
