A new passive 28-step current shaper for three-phase rectification
نویسندگان
چکیده
A new passive 28-step current shaper for three-phase rectification is proposed in this paper. With a phase-shifting transformer on the ac side and six interphase transformers on the dc side, per-phase input current can be shaped into a 28-step sinusoidal waveform. The total harmonic distortion of ac input currents obtained is 6.54%, lower than one-half of that in a conventional 12-pulse converter. The transformer voltampere rating is also lowered down to one-fifth of that in a 12-pulse converter. A 2-kW experiment is performed to verify the proposed circuit.
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ورودعنوان ژورنال:
- IEEE Trans. Industrial Electronics
دوره 47 شماره
صفحات -
تاریخ انتشار 2000