- Multi-objective Optimization Based on Multiphysics Analysis [ 2016-05-10 ]
- Case Study of Multi-objective Optimization for Motor Design [ 2016-05-09 ]
- Loss Analysis including Effect of Manufacturing Degradation Due to Punching (Analysis) [ 2016-04-28 ]
- Loss Analysis including Effect of Manufacturing Degradation Due to Punching (Materials Measurement) [ 2016-04-27 ]
- Efficiency Map Calculation Using a 3D Model [ 2016-04-25 ]
- HPC for High Precision Efficiency Map [ 2016-04-22 ]
Efficiency Map Calculation Using a 3D Model
When motors are designed smaller or thinner, leakage flux in the axis direction due to magnetic saturation becomes greater. For this reason, a model that can account for characteristic behaviors in 3D is needed.
As with the previous example, approximately 2500 operating points were used in a 3D model to perform calculations in the efficiency map below.
Efficiency map using a 2D model
Efficiency map using a 3D model
The efficiency map was calculated in approximately two days by simultaneously running multiple jobs on the Amazon Web Services (AWS) cloud.
We can see by comparison of the two maps that there usually is no difference between the maximum torque lines; however, after field weakening controls occur at higher RPMs, torque differences can be seen. Due to magnetic saturation, magnetic flux flows out in a 3D way and, in turn, mitigates magnetic saturation. Not only efficiency but various types of performance loss, currents at each operating point, and details such as inductance values can be found at the booth on the day of the session.
2016-04-25
