The circuit of Figure 12.40 is used to provide regenerative braking in a traction motor. The motor constant is 0.25 V/rpm, and the supply voltage is 550V. The armature resistance is Ra = 0.15 ?. The motor speed is 1,000 rpm, and the motor current is 200 A.
a. Determine the duty cycle ? of the converter.
b. Determine the average power fed back to the battery.
Analysis:
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