Analysis of Induction Machines (TR or DP)
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Torque characteristics of three-phase induction machines |
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Induction machines are used in a wide range of environments due to the fact that they are robust and do not require magnets, and are one of the oldest types of electric motor. State-of-the-art control technology has recently been introduced, which allows control over a wide range of speeds, and has attracted attention in various fields. The analysis example shows the calculation of the torque characteristics of a three-phase induction machine (See Figure 1). The two-dimensional model is analyzed with the voltage specified for each phase. This method calculates the electric current and thus shows the effect of harmonics and distortion caused by slot combination and magnetic saturation. Figure 2 shows the relationship between torque and speed obtained in the analysis. Figure 4 shows the eddy current distribution on the secondary conductor, which was obtained from a three-dimensional analysis in which skew is considered, and Figure 5 shows an animation of the magnetic flux distribution. |
 Figure 1 - Torque characteristics of induction machines |
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| Figure 2 -
Relationship between torque and speed Enlarged View |
Figure 3-1 -
Analysis taking into account skew Enlarged View |
Figure 3-2 -
Modeling of secondary conductor Enlarged View |
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| Figure 4 -
Eddy current distribution on secondary conductor Enlarged View |
Animation of magnetic flux density
The figure on the left is an animation of the distribution of magnetic flux density varying with time. The changes can be seen on the screen. For a more detailed view, see the full animation file (192 kB). |
