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Q#1 Load Flow Analysis GATE EE 2007 MCQ +2 marks -0.66 marks

The figure below shows a three phase self-commutated voltage source converter connected to a power system. The converter's dc bus capacitor is marked as C in the figure. The circuit is initially operating in steady state with δ = 0 and the capacitor dc voltage is equal to . You may neglect all losses and harmonics. What action should be taken to increase the capacitor dc voltage slowly to a new steady slate value?

Make δ positive and maintain it at a positive value

Make δ positive and return it to its original value

Make δ negative and maintain it at a negative value

Make δ negative and return it to its original value

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