Question

For the following electric motor, you are required to do the following:

a) Write the differential equations related to the electric part and another for the mechanical part

b) Model this physical model using SIMSCAPE

c) Use the data in the table to analyse your model (with Vin = 14 volts)

d) Obtain an output for the angular velocity of the rotor

e) Also obtain a graphical output for the current, VLa, and VRa of the circuit

f) Comment on your results, especially the values of the current i and angular

velocity

Q2 For the following electric motor, you are required to do the following: a) Write the differential equations related to the

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Answer #1

Load Torque SA S R V+ R C € Step Input w DC Voltage M V- с f(x) = 0 Motor RPM DC MotorFile Edit View Insert Tools Desktop Window Help Motor Current 14 12 10 Current (A) 2 0 0.02 0.04 0.06 0.08 0.1 0.12 0.12 0.14A Motor RPM - х File Tools View Simulation Help O- + f x 104 0.5- 0,02 0.04 0.06 0.08 0.12 0.14 0.16 0.18 0.2 Ready Sample baas. can be written as * shaft speed equation Wm= ky.ea-(T-Tf) Ra Kroke. ea - la Ra . wm ke . Whe - no load speed equation is87 * Electromechanical Equations Vb (t) = KE Wm (t) T (t) = kg. la (t) (Page 4

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