A new arrangement of AC/DC converters for high direct-current applications

A novel AC/DC converter designed for high-output direct currents and tight output voltage regulations is introduced. The proposed converter e xhibits good efficiency and very low output voltage ripple. In order to verify the performances of the four-stage proposed converter, a 400A rated current prototype was designed and built. The prototype was properly verified by experimental tests performed in a laboratory. A subsequent FFT (Fast Fourier Transfor m) analysis was carried out to verify the harmonic pollution produced by the converter in the supply n etwork.

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