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In this paper, a new compensation strategy for receiving clean power is proposed with a conventional 18-pulse AC/DC rectifier scheme. In the proposed strategy, the compensation currents are injected at the dc side in front of the inter-phase transformer. The injected currents generated by a three-phase current-controlled inverter effectively improve the total harmonic distortion (THD) of the ac main...
This paper proposes a new active interphase transformer for 24-pulse diode rectifier. The proposed scheme injects a compensation current into the secondary winding of either of the two first-stage interphase transformers. For only one of the first-stage interphase transformers being active, the inverter conducted the injecting current is with a lower kVA rating [1.26% pu (Po)] compared to conventional...
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