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Real time harmonic elimination using a modified carrier

The paper proposes a harmonic elimination technique that is based on comparison modulation with a modified carrier. Typically, selective harmonic elimination method calculates the switching angles offline using iterative computations and programmed into a digital processor. Here we are advancing a modulation-based harmonic elimination technique to remove the unwanted harmonics. It is a novel PWM method where a reference sinusoid with the desired signal frequency is compared against a modified carrier signal with the same time period as the reference. Simulation and laboratory studies are included.