GATE EE 2017 Set 2 — Question 13
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Power Electronics → Inverters → 180° & 120° Conduction
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Question
A three-phase voltage source inverter with ideal devices operating in conduction mode is feeding a balanced star-connected resistive load. The DC voltage input is . The peak of the fundamental component of the phase voltage is
Correct answer
(B) 2V_(dc)π
Solution
For a three-phase voltage source inverter (VSI) operating in conduction mode, the phase voltage waveform is a quasi-square wave. The Fourier series expansion for the phase voltage is given by:The fundamental component () is:The peak value of this fundamental component is .
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