Overview
Closeup |
Control design and motor design have been conventionally treated as independent
processes, and there is a need for coordinated design for these systems.
Meanwhile, for designing advanced motors, it is important to obtain more
accurate and detailed motor behavior through simulation. For that purpose,
a linked analysis between magnetic field and the circuit / control is necessary.
By linking JMAG to a circuit / control simulator, both the nonlinear properties
of a motor and the control properties of a motor drive can be taken into
account in the analysis.
This note presents the use of the JMAG-RT system and the circuit / control
simulator to perform vector control analysis of an IPM motor. |
Id and Iq Current Waveforms / Torque Waveform
| Figure 1 shows Id and Iq current waveforms and Figure 2 shows the torque
waveform, obtained from the vector control analysis. Since the RT motor
model includes motor geometry data, the current waveform and torque waveform
are seen to include slot harmonic component. On the other hand, the ideal
motor does not include slot harmonic component and its q-axis current is
smaller than the RT motor model. |
Closeup |
Closeup |
|
