1段変換方式高周波絶縁型三相PWM整流器

概要

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The AC-DC converter, which has three-phase AC power as input and isolated DC power as output is used for the regulated DC power supply of the telecommunication power processing system for several kilowatt class applications. The conventional DC power supply for the telecommunication power system comprises a PWM rectifier with sinewave shaping input current unity power factor and a DC/DC converter connected to the PWM converter, which obtains DC48 V. Since power passes through these two power stage converters, the conversion power loss is difficult to provide high efficiency. In addition, the power components of the power converter make the compact design of the power supply difficult.To resolve these problems, this paper presents a new PWM rectifier as a one-stage power conversion scheme. It experiment, it is proved from a practical point of view that 92.1% of conversion efficiency and input current which can meet harmonics regulation of the Class A in IEC61000-3-2 are achieved.
社団法人電気学会の論文
2004-08-01