Question: Consider Example 10.12 in which a current-source inverter is driving a load consisting of a sinusoidal voltage. The inverter is controlled to produce the stepped

Consider Example 10.12 in which a current-source inverter is driving a load consisting of a sinusoidal voltage. The inverter is controlled to produce the stepped current waveform shown in Figure.

a. Create a table showing the switching sequence required to produce the specified waveform and the time period during which each switch is either ON or OFF.

b. Express the fundamental component of the current waveform in the form i _l (t) = I₁ cos (wt + ?₁) where I₁ and ?l are functions of I₀, D and the delay angle ?_d.

c. Derive an expression for the time-averaged power delivered to the voltage source v_L (t) = Va cos wt.

v(t) A Vo DT O DT DT -V -

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