Build a permanent magnet servo motor using simulink and a four

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 Consider a permanent magnet dc servo motor with the following parameters: Tem(rated) = 10Nm

 Rated Speed in rpm Nrpm = 3700 

kT = 0.5Nm/A 

kE = 0.5V/rad/s

 Ra = 0.37Ω

 La/Ra = 4.05 × 10−3 s 

Jeq = 0.0079kg-m2 

The servo motor is driven by a full-bridge four-quadrant dc-dc converter operating from a 200V dc bus. The motor is delivering a torque of 5Nm at a speed of 1500rpm. The switching frequency is 20kHz. 

1. Build the above dc motor and power electronic converter in Simulink. Using the simulation model, determine the peak-peak ripple in the armature current for the above operating condition in open-loop? 

2. Design the current loop for a crossover frequency of 1kHz and the speed controller for a crossover frequency of 100Hz.

 3. Build the closed loop model in Simulink. In the model, For a step increase in load torque from 5Nm to 10Nm, with the speed re