Advanced Electric Drives Analysis — Control And Modeling Using Matlab Simulink

Instead of using the pre-built "PMSM" block from the Specialized Power Systems library, building your own model in SIMULINK using fundamental equations is an invaluable exercise for advanced analysis. This "white-box" model allows you to inject non-linearities (e.g., magnetic saturation, cogging torque) that proprietary blocks often simplify.

MATLAB/Simulink is no longer just a simulation tool; it is the of your electric drive system. Advanced analysis is not about using the default blocks—it is about opening the masks, writing the saturation tables, and modeling the dead-time distortion. Instead of using the pre-built "PMSM" block from

Unlike FOC, DTC does not use a modulator or coordinate transformation loops. It directly controls the torque and flux by selecting the optimal voltage vector from a lookup table based on hysteresis comparators. Simulink is ideal for designing the switching tables and observing the torque ripple characteristics inherent to DTC. Advanced analysis is not about using the default

You don't have a speed sensor? You need a or Sliding Mode Observer (SMO) . Simulink is ideal for designing the switching tables

Removing the position/speed sensor reduces cost and improves reliability. This requires a or a Sliding Mode Observer (SMO) to estimate back-EMF and thus rotor position.

You built the model. It works perfectly. The hardware fails. Why?

Author’s Note: The scripts and model structures referenced in this article are available in the MATLAB File Exchange and the official MathWorks documentation for the Motor Control Blockset. For hands-on practice, MathWorks’ online free tutorials on "Motor Control Design with MATLAB and Simulink" are an excellent next step.