Brushless DC (BLDC) Motors

Use six-step commutation for motor control applications using BLDC motors

Implement the six-step commutation technique for sensor-based and sensorless position applications using BLDC motors.

Note

When using Motor Control Blockset™ examples, you may occasionally see these (or similar) error messages:

  • Variant control 'mcb_isCodeGenVar()' used by block 'mcb_pmsm_foc_qep_f28379d/Current Control/HW Inputs' should return a logical value.

  • Variant control 'mcb_isSimVar()' used by block 'mcb_pmsm_foc_qep_f28379d/Current Control/HW Inputs' should return a logical value.

If you see this error, close and reopen the model.

Featured Examples

Six-Step Commutation of BLDC Motor Using Sensor Feedback

Six-Step Commutation of BLDC Motor Using Sensor Feedback

Uses 120-degree conduction mode to implement the six-step commutation technique to control speed and direction of rotation of a three-phase brushless DC (BLDC) motor. The example uses the switching sequence generated by the Six Step Commutation block to control three-phase stator voltages, and therefore, control the rotor speed and direction. For more details about this block, see Six Step Commutation.

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Hall Sensor Sequence Calibration of BLDC Motor

Hall Sensor Sequence Calibration of BLDC Motor

Calculates the Hall sensor sequence with respect to position zero of the rotor in open-loop control.

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