A 3-Level inverter realizes system miniaturization and higher efficiency compared to a 2-level inverter. A 2-Level inverter controls the voltage waveform of the converter output with 2 electric potentials while a 3-level inverter controls it with 3 electric potentials. As the 3-level converter creates an output waveform closer to a sinusoidal curve, a reduction of LC filter size and switching loss is expected.
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