(Solution) - Consider the 460 V 250 kW four pole induction motor and drive -(2025 Original AI-Free Solution)

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Academic Level: Undergrad. (yrs 3-4)

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Consider the 460-V, 250-kW, four-pole induction motor and drive system of Problem 11.21.
a. Write a MATLAB script to plot the speed-torque characteristic of the motor at drive frequencies of 20, 40, and 60 Hz for speeds ranging from -200r/min to the synchronous speed at each frequency.
b. Determine the drive frequency required to maximize the starting torque and calculate the corresponding torque in N · m.