Hystersis Band Limits in BLDC Motor Model

In BLDC motor modelling, in order to generate the gate signals for inverter ,How do you find the Hystersis band limits (upper limit and lower limit) so that it can be compared with the error current(Ierr)?

Answer 1

[Sabin]

If the error is above the hysteresis band, the output is in one state, if the error is is below the band then the output is in the other state. There is not a golden rule about how to choose the hystereis band but we shall take into account the error noise. If the error is like an ideal signal we can choose a very small band which will limit the output ripple. In reality, the error will be far from ideal.