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