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In case of the series inverter control, if two inverters are connected in series through a transformer, and two secondary voltages are V1 and V2, then the resultant output is given by

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in Power Electronics by (27.1k points)
In case of the series inverter control, if two inverters are connected in series through a transformer, and two secondary voltages are V1 and V2, then the resultant output is given by

(a) V1 + V2

(b) √(V12 + V22)

(c) [V12 + V22 + 2.V1.V2.cosθ]^1/2

(d) [V12 + V22 + 2.V1.V2.sinθ]^1/2

This question was addressed to me in a job interview.

This intriguing question originated from Voltage Control in Inverters in portion Inverters of Power Electronics

1 Answer

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by (45.1k points)
The correct answer is (c) [V12 + V22 + 2.V1.V2.cosθ]^1/2

For explanation I would say: The resultant output will be the phasor sum of V1 and V2.

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