中文摘要：

多脉冲整流器作为一种无源整流装置,具有系统可靠性高,结构简单,效率高,过载能力强等特点,广泛应用于航空领域。相关航空标准规定交流用电设备输入电流THD〈10%,而12脉冲整流器输入电流THD的理论值为15.2%,不能满足要求。为满足谐波标准,通常在交流侧和直流侧串入电感来降低输入电流的THD,针对P型12脉冲自耦变压整流器,从理论上推导输入电流谐波表达式,为交直流侧电感设计提供依据,同时采用高饱和磁通密度的铁钴钒材料设计磁性元件,减小了系统体积和重量,完成了一台4kW 12脉冲自耦变压器的设计,输入电流THD满足航空标准。

英文摘要：

Because of its simple structure, high reliability and strong overload capacity, multi-pulse rectifier is widely used for the electronic facilities applied in the aircraft. Related aviation standards require that the THD of input current of AC electrical equipments must be less than 10%. However, theoretical value of 12-pulse ATRU input current THD is 15.2% , and it doesn＇ t meet the related aviation standards. To satisfy the standards, AC and DC inductor are added to reduce input current THD so that the original method can meet engineering requirements. In this paper the expression of input current harmonic which provides a theoretical basis for AC and DC inductor is derived. This paper also uses Fe-Co-V alloy which has high saturation flux density to reduce system＇ s volume and weight. At last, this paper designed a 4kW P-type 12-pulse auto-transformer rectifier whose input current THD sat- isfies the aviation standards.