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Q#1
AC Voltage Controller
GATE EE 2000
MCQ
+2 marks
-0.66 marks
A single phase voltage source of magnitude and frequency ω (rad/s) is connected to an inductance L through an anti-parallel back-to-back pair of thyristors. The forward and reverse conducting thyristors are fired at an angle of from the positive going and negative going zero crossings of the supply voltage respectively, in each cycle.
Obtain an expression for the inductor current in each cycle for a given value of α.
The voltage drop across the thyristors, when either of them is in conclusion, may be assumed to be negligible.
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