The invention provides a three-phase AC-DC converter and a method for realizing three-phase AC-DC converter. Three-phase single-stage AC-DC converters achieve power factor correction with low phase voltage switch stress. Direct input current sensing is performed to calculate the average input current of the AC-DC converter and implement power factor correction. Embodiments feature high power factor, single stage power conversion, and soft-switching of all switches, resulting in high conversion efficiency in a cost-effective single-stage three-phase structure. The converters have low output voltage ripple without a double line frequency component, which allows non-electrolytic capacitor implementation. The converters are particularly useful in high-power applications such as electric vehicle charging.

    本发明提供了一种三相AC‑DC交直流转换器、实现三相AC‑DC交直流转换器的方法。三相单级交直流变换器在低相电压开关应力下实现功率因子校正。直接输入电流检测用于计算交直流变换器的平均输入电流并实现功率因子校正。实施例具有高功率因子、单级功率转换和所有开关的软开关等特性,从而在经济高效的单级三相结构中产生高转换效率。该变换器输出电压纹波小,无双线频率分量,可实现无电解电容器。这种转换器在电动汽车充电等大功率应用中特别有用。


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    Title :

    Three-phase AC-DC converter and method for realizing three-phase AC-DC converter


    Additional title:

    三相AC-DC交直流转换器、实现三相AC-DC交直流转换器的方法


    Contributors:

    Publication date :

    2020-07-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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