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Selective harmonics elimination for the staircase voltage waveform generated by multilevel inverters has been widely studied for medium and high voltage applications. Most published strategies are for multilevel inverters with balanced dc levels and single switching per level. This paper proposes an Optimal Pulse Width Modulation (OPWM) method that utilizes equal area criteria and harmonic injection...
In the series hybrid active power filter (SHAPF) based on fundamental magnetic flux compensation (FMFC), the PWM inverter acts as a controlled fundamental current source, but its control characteristic is not ideal, moreover, the secondary terminal of the series transformer exhibits an interferential harmonic voltage, which has a great influence on the filtering effect. In this paper, the mathematical...
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