A ward leonard system is applied to control speed of a separately excited dc motor as...

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A ward leonard system is applied to control speed of a separately excited dc motor as below figure. The prime mover provides mechanical power with constant speed (n₁) of 1500 rpm. When varying the field current l₁₁ at a certain value of the dc generator, the k₁₁=0.05 V/rpm (Hint: E₂1= k₁n₁). The generator armature resistance ra₁=0.1 ohms. The field current If2 is kept constant at rated value resulting in k₂₂ -0.1 V/rpm. The motor armature resistance ra2=0.1 ohms. The motor draws armature current (1₂) of 20 A. Ta2 Tal Ia T₁, W₁ Eal V. a equivalent circuit (a) Find terminal voltage of the dc motor (V₂). (b) Find the speed (n₂) of the dc motor. (c) The electromagnetic torque of the dc motor. Ea2 T2, W2 İf2 A ward leonard system is applied to control speed of a separately excited dc motor as below figure. The prime mover provides mechanical power with constant speed (n₁) of 1500 rpm. When varying the field current l₁₁ at a certain value of the dc generator, the k₁₁=0.05 V/rpm (Hint: E₂1= k₁n₁). The generator armature resistance ra₁=0.1 ohms. The field current If2 is kept constant at rated value resulting in k₂₂ -0.1 V/rpm. The motor armature resistance ra2=0.1 ohms. The motor draws armature current (1₂) of 20 A. Ta2 Tal Ia T₁, W₁ Eal V. a equivalent circuit (a) Find terminal voltage of the dc motor (V₂). (b) Find the speed (n₂) of the dc motor. (c) The electromagnetic torque of the dc motor. Ea2 T2, W2 İf2

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SOLUTION To solve this problem well analyze the Ward Leonard system and use the given parameters to ... View the full answer