Three-phase power-factor correcting AC-DC self-balancing rectifier without neutral connection
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机译:无零线连接的三相功率因数校正AC-DC自平衡整流器
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#$%^&*AU2016269543B120170427.pdf#####ABSTRACT A three-phase non-isolated AC to DC rectifier operable without connection to a neutral of a three-phase AC supply is disclosed. The rectifier combines three single-phase symmetrical AC-DC boost converters connected in parallel at their mid-points and outputs. The boost converters are controlled such that each converter presents an input resistance of equal value to the AC supply. Doing this produces a stable star-point at the AC input and a stable mid-point at the DC output, whereby the DC output voltages remain balanced around a mid-point voltage without additional balancing circuitry.
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