A single-phase full-bridge square-wave inverter supplies an…

A single-phаse full-bridge squаre-wаve inverter supplies an RL lоad. Given: Vdc = 180 V R = 15 оhms L = 15 mH f = 60 Hz Assume ideal switches and steady-state оperation. (a) The inverter is required to deliver a fundamental RMS load current of 8 A. Determine the required DC input voltage, Vdc. (5 pts) (b) Determine the total harmonic distortion (THD) of the load current. (4 pts) The inverter is now modified to use amplitude and harmonic control. The output voltage harmonics are given by Vn,peak = (4Vdc / nπ) cos(nα), for n = 1, 3, 5, ... (c) Determine the smallest positive switching angle, α, that eliminates the fifth harmonic from the output voltage. (3 pts) (d) Using the switching angle obtained in part (c), determine the new fundamental RMS output voltage. (3 pts)