A separately excited DC motor is driven from a 220 V, 50 Hz supply using the fully controlled thyristor rectifier bridge

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A Separately Excited Dc Motor Is Driven From A 220 V 50 Hz Supply Using The Fully Controlled Thyristor Rectifier Bridge 1 (66.73 KiB) Viewed 30 times

A separately excited DC motor is driven from a 220 V, 50 Hz supply using the fully controlled thyristor rectifier bridge of Figure 2. The motor has an armature resistance Rg = 1.0 Q and the armature voltage constant is ky = 0.8 V/rad/sec. The field current is constant at its rated value. IL = T2 T A Load B T4 T3 Figure 2 a) Derive the expression of the average output voltage by solving the integral: 1 VO 7+ =- 元 Vs de a With Vs = Vm sin(8) When the firing angle is a = 30°, the motor speed is 1600 rpm. Determine: = b) The rectifier average output voltage. c) The armature current of the motor. Formula: Back-emf: Eg = kyWm