A bipolar BLDC motor with k? = 1.0 Vs is running at 500 rpm when the modulation factor is 80% and the load torque is 30 Nm. The voltage of the dc source is 200 V, and the armature resistance of the motor is 1.0 ?. Compute the dynamic braking resistance that would limit the braking current to 160% of the pre-braking condition. If the torque is unidirectional, compute the steady-state speed of the motor.

What will be an ideal response?


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