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Q#1
Inverter
GATE EE 2025
MCQ
+2 marks
-0.66 marks
The 3-phase modulating waveforms 
and 
, used in sinusoidal PWM in a Voltage Source Inverter (VSI) are
where 
is the fundamental frequency. The modulating waveforms are compared with a 10 kHz triangular carrier whose magnitude varies between +1 and -1. The VSI has a DC link voltage of 600 V and feeds a star connected motor. The per phase fundamental RMS motor voltage, in volts, is closest to
169.71
300.00
424.26
212.13
Explanation:
Peak of each phase modulating waveforms, 
Peak of triangular carrier wave, 
For Sinusoidal PWM Inverter,
Peak of Fundamental phase voltage,
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