Characteristics of the induction motor depend on motor shapes, materials, and drive states. For example, it is necessary to calculate the resistance of the secondary side by taking into account the current distribution in the secondary conductor, but the phenomenon is complicated and it is difficult to calculate manually. JMAG-RT can create a highly accurate plant model (JMAG-RT model) by calculating the FEA while taking the motor shape, material, and driving condition into account, then extracting the characteristics of an induction motor.
In this example, we conduct a circuit simulation to control current and speed by incorporating the JMAG-RT model of an induction motor into the control/circuit simulator.
Rotation Speed Waveform and d-Axis Current Waveform
Fig. 2 shows the rotation speed waveform and fig. 3 shows the d-axis current waveform. It can be seen that both become steady at their command values.