[MarkSweep]

An article I found quite helpful for understanding different types of motor commutation was this one from Copley:

https://www.maccon.de/fileadmin/redaktion/downloads/Produkte...

I wish I had a more official link.

Anyways the key idea is normally when controlling a motor you are having to regulate the different poles if the motor oscillating up and down as the more spins. Controlling ossification like that is hard. By using the Clarke transform you can transform the frame of reference into the torque vector of the motor. You want this to be a constant value as the motor is spinning, which is much easier to control.

[ranabasheer]

You can try that out in the simulator under the sinusoidal commutation. By adjusting the drive voltage, you can bring the direct current of commutation as low as possible while keeping the quadrature current and hence the torque constant. You may also play with locking the commutation frequency and drive voltage to understand how constant V/F controls work.