Question

In a single-phase full-bridge PWM inverter, the input dc voltage varies in a range of 295–325 V. Because of the low distortion required in the output v₀ , mₐ, s 1.0.

a) What is the highest V₀₁ that can be obtained and stamped on its nameplate as its voltage rating?

Answer 1

The highest voltage rating V01 for a single-phase full-bridge PWM inverter with a modulation index of 1.0 and an input dc voltage range of 295–325 V is 325 V, based on the maximum dc input voltage.

Step-by-step explanation:

The highest voltage rating (V01) that can be obtained from a single-phase full-bridge PWM inverter with a modulation index (ma) of 1.0 is based on the peak value of the input dc voltage range. Given that the input voltage varies from 295 V to 325 V, the maximum dc input voltage is 325 V. Using the formula for the conversion from dc voltage to peak AC voltage in a full-bridge inverter, V01 = Vdc*ma, where ma = 1.0 for the least distortion, the highest V01 is thus 325 V. This peak AC voltage value can be stamped on the inverter's nameplate as its voltage rating.