Scalar Control in Matrix Converter-Fed Induction Machine Drive

This example shows how to control the rotor speed in a matrix converter-fed induction machine drive by using the scalar V/f control method. To generate three-phase voltage with reference frequency, the controller maintains a constant voltage-to frequency ratio though scalar V/f control. A three-phase voltage source with fixed amplitude and frequency feeds the induction machine through a three-phase matrix converter. The matric converter is controlled using third harmonic injection Venturini modulation with unity input displacement factor. The induction machine operates in both motoring and generating modes. The Scopes subsystem contains scopes that allow you to see the simulation results.

Model

Simulation Results from Simscape Logging

The plot below shows the requested and measured speed for the test, as well as the torque in the electric drive.