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AdvancedMATLAB R2026a

50 kW SRM drive: angle control vs torque sharing

A 50 kW switched reluctance traction drive with two controllers compared side by side in a MATLAB app.

Torque waveforms with angle control and TSF, and TSF metrics as a percentage of angle control
At 800 rpm, TSF cut torque ripple from 46.6% to 28.5%
Torque-sharing functions for four phases and the inverse current map
Torque-sharing functions and current map

Aim

Run angle control and a torque-sharing function (TSF) on the same 50 kW 8/6 SRM model at equal mean torque, and compare ripple, current and losses.

What you’ll learn

  • Sizing an SRM's inductance from torque and voltage limits
  • Angle (current-chopping) control vs torque-sharing functions
  • Linear, cubic, sinusoidal and exponential sharing functions
  • Torque ripple, copper loss and switching loss trade-offs

Try it here

An interactive illustration of the idea behind this experiment.

How to run it in MATLAB Online

  1. Unzip the package we send you.
  2. Go to matlab.mathworks.com and sign in (campus licence or MathWorks trial).
  3. In MATLAB Drive, click Upload and choose the unzipped folder.
  4. In MATLAB Online, open the folder and double-click the model (.slx) or run the start script named in README.
  5. Press Run. Results appear in the scopes, dashboard or figures.

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