The parameters of a 3-phase, 4-pole, 50 Hz, Y-connected,wound-rotor induction motor are listed below. These are the defaultvalues of the “Asynchronous Machine†model in MATLAB Simulink.r1=0.5968 ?; r2=0.6258 ?; L1=0.0003495 H; L2=0.005473 H; Lm=0.0354H; Stator line voltage = 400 V rms. The motor for rotor speeds nm=0 to 1500 rpm.
X1= 0.1097 ohm, X2= 1.719 ohm , Xm= 11.12 ohm, RTH =0.5853 , XTH = 0.1395 and VTH = 230.82 V.
Suppose the motor is to rotate a fan for which the load torqueis proportional to cube of the speed: ?m = (1.3×10^ -5 )*?m^3 where?m is the fan speed in rad/s. Then use MATLAB to plot thetorque-speed characteristic of the fan as the motor torque-speedcharacteristic. What would be the motor speed and torque?
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