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Power ElectronicsThree-Phase Rectifiers

For an ideal three-phase fully controlled bridge rectifier with continuous DC current, the average output voltage is commonly written as?

  • A1.35 VLL cos alpha
  • B0.45 VLL cos alpha
  • C2.34 VLL sin alpha
  • DVLL/(1-D)
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Correct Answer: A. 1.35 VLL cos alpha
Explanation: For a six-pulse three-phase full converter with continuous current and negligible overlap, Vdc=1.35 VLL cos alpha, where VLL is the RMS line-to-line input voltage.
Reference: Standard power electronics: three-phase rectifiers
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