基于脉波倍增的新型24脉TRU可靠性分析与试验  

Reliability Analysis and Test of New 24-Pulse TRU Based on Pulse Multiplication

作　　者：潘旷明 陈昕冉 李文臣 史艳博 潘怡晨 葛红娟[1] PAN Kuang-ming;CHEN Xin-ran;LI Wen-chen;SHI Yan-bo;PAN Yi-chen;GE Hong-juan(College of Civil Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China;College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)

机构地区：[1]南京航空航天大学民航学院,江苏南京211106 [2]南京航空航天大学自动化学院,江苏南京211106

出　　处：《测控技术》2023年第3期32-37,共6页Measurement & Control Technology

基　　金：国家自然科学基金民航联合研究基金(U2133203,U1933115,U2233205)。

摘　　要：提出了采用小容量半桥辅助电路与12脉变压器、2组整流桥构成多电飞机24脉变压整流器(TRU)的方法。该方法利用半桥辅助电路向12脉波直流电压母线注入电压纹波,实现脉波倍增,构成结构简单、变压器质量轻、整流桥少的24脉TRU,达到简化变压器结构、降低变压器质量,以及降低整流桥数量的目的。分析了拓扑工作模态,推导了输入输出变量表达式,设计了辅助电路,开展了辅助变压器变比优化设计和样机试验等工作;研究了机载TRU的失效率预计方法,针对55℃环境温度的典型情况,开展了新型TRU和常规24脉TRU的失效率预计比较研究。结果表明,所提出的24脉TRU不但结构简单、质量轻,且具有良好的输入输出性能和较低的失效率。A 24-pulse transformer rectifier units(TRU) of multi-electric aircraft design method based on a small-capacity half bridge auxiliary circuit,12 pulse transformer and 2 sets of rectifier bridge is proposed.The half bridge auxiliary circuit is used to inject the voltage ripple into the 12-pulse DC voltage bus to form a 24-pulse TRU with simple structure,light weight of transformer and fewer rectifier bridges,which simplifies the transformer structure,reduces the transformer weight and decreases the number of rectifier bridges.The working modes of this topology and the formula of input and output are analyzed.The auxiliary circuit and optimal turns ratio of auxiliary transform are designed,and prototype test is carried out.The prediction method of the airborne TRU failure rate is studied and the compare of the new TRU and the ordinary 24-pulse TRU is conducted in the typical temperature of 55 ℃.The results show that the 24-pulse TRU not only has simple structure and light weight,but also has good input-output performance and lower failure rate.

关 键 词：24脉波 变压整流器 可靠性分析 脉波倍增 谐波抑制 

分 类 号：V217[航空宇航科学与技术—航空宇航推进理论与工程]