航空三相有源功率因数校正技术比较  

Comparative study of aircraft three-phase power factor corrections

作　　者：杜雄[1] 杨玉良[1] 周雒维[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044

出　　处：《重庆大学学报（自然科学版）》2013年第6期9-17,共9页Journal of Chongqing University

基　　金：全国优秀博士论文作者专项基金(200948);教育部新世纪人才计划项目(NCET-09-0839);输配电装备及系统安全与新技术国家重点实验室自主研究项目(2007DA10512709210);重庆市杰出青年科学基金资助项目(CSTC2012JJJQ90004)

摘　　要：总结了航空电源标准的要求,指出航空三相功率因数校正(PFC)的设计需要特别考虑频率变化和电源电压不平衡条件下输入电流的谐波和直流输出电压的纹波。通过综述航空三相PFC的研究现状,选择了3种典型航空三相有源PFC方案——三相脉冲宽度调制(PWM)整流器、传统有源电力滤波器(APF)和广义APF,建立了3种方案的单相统一模型,对其谐波特性进行了理论分析和开关应力的计算,以比较3种方案的效率和功率密度。对3种方案分别设计了5kW的航空三相PFC,通过仿真结果对理论分析进行了验证。结果表明:将广义APF应用到航空三相PFC中具有较大的技术优势。最后指出需要解决广义APF直流输出电压不可控的问题和滤波电感的优化设计的问题。This paper summarizes the requirements of standards for aircraft power supply firstly,and then points out that the input current harmonic and output DC voltage ripple should be considered seriously when designing three-phase power factor correction（PFC）for aircraft under variable line frequency and unbalanced line supply.Based on reviewing the topologies for aircraft three-phase PFC,three typical topologies,i.e.three-phase pulse width modulation（PWM）rectifier,traditional shunt active power filter（APF）and generalized APF,are picked up.A unified single-phase equivalent model is developed for comparing the harmonic suppression performance of the three active PFC schemes.And the switching stress is also calculated for evaluating their efficiency and power density.Three 5 kW PFC are designed by employing each of the three selected schemes.Simulation is carried out to verify the correctness of the theoretical analysis.The theory and simulation results indicate that the generalized APF topology shows the most technical merit for aircraft three-phase PFC.Future research works on generalized APF are also pointed out,which are solving the uncontrollability of its DC output voltage and optimal designing the filter inductors.

关 键 词：多电飞机 航空三相功率因数校正 广义有源电力滤波器 开关应力 谐波 

分 类 号：TM461[电气工程—电器]