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航空静止变流器的输入纹波电流特性研究

, PP. 154-161

Keywords: 航空静止变流器,二次谐波电流,传播特性,低频纹波电流

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Abstract:

航空静止变流器(aviationstaticinverter,ASI)作为飞机电源系统的典型负载,其脉动的输入电流严重影响着直流电网的电能质量。针对航空静止变流器的输入电流特性进行研究。基于双重傅里叶开关函数法给出逆变环节输入电流中直流分量、二次谐波分量、载波次谐波和载波的边频谐波等表达式,为定量计算各电流分量提供了精确依据。推导二次谐波电流向高压直流电网侧传播的等效电路模型,从而揭示航空静止变流器输入端低频纹波电流的产生、传导及其影响因素。最后,通过仿真和实验验证理论分析的正确性。

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