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A hybrid B4 active power filter (APF) with reduced switches is proposed in this study, which is composed of a inductance–capacitance (LC) passive filter and a four-switch three-phase inverter (B4 inverter) in series connection. The LC filter is used to supply reactive power, and the active filter is responsible for mitigating the harmonics. Compared with the previous proposed four-switch hybrid APF,...
For the two-stage matrix converter (TSMC) having no energy storage elements, the nonsinusoidal supply voltages will disturb the output voltage and result in low order harmonics. To compensate the output voltages, two new space vector modulation strategies are presented. One works with the rectifier stage, and the other with the inverter stage. The maximum transfer ratio under nonsinusoidal input is...
A selective harmonic elimination (SHE) inverter can eliminate beforehand-appoint harmonic by calculating the equations set, therefore it can eliminate harmonic effectively in theory. The connection and break of switching devices all need a little time, thus the narrow pulse of the ideal output voltage waveform is difficult to realize. For obtaining practical output voltage waveform, optimization strategies...
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