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Please Help me in MATLAB Simulink Program

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yousefsam

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I have a problem in my MATLAB program, it is about three phase inverter with induction motor load with sinusoidal wave pulse width modulation which will be applied to the gate of the thyristors bridge.
please help me in my question, the problem is when i connect the induction motor the MATLAB program shows that there is a load (resistance) that must be connected in series with motor.
i can't understand why i need this resistance.
plz if anyone can help me, plz answer me quickly.
 

You may need a resistance equal to the armature resistance. For more help pliz upload the simulink diagram.
 

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