| 一种适用于船用两级式逆变电源的二次纹波电流抑制方法 |
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| 引用本文： | 汪文涛.一种适用于船用两级式逆变电源的二次纹波电流抑制方法[J].船电技术,2020(4):5-9. |
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| 作者姓名： | 汪文涛 |
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| 作者单位： | 武汉第二船舶设计研究所 |
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| 摘 要： | 本文分析了二次纹波电流在船用两级式逆变电源中的传导机理,并从阻抗的角度分析了单纯降低前级直流变换器电压环截止频率用于抑制二次纹波电流的抑制方法的局限性,进而提出了基于修订母线电压给定的二次纹波电流抑制方法。所提出的抑制方法易于实现,且在有效抑制逆变电源中二次纹波电流的同时,不会牺牲电源的动态性能。实验结果证明了二次纹波电流抑制方法的可行性和有效性。
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| 关 键 词： | 逆变电源 二次纹波电流抑制 动态性能 |
A Second Harmonic Current Reduction Method Suitable for Marine Two-stage Inverter |
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| Wang Wentao.A Second Harmonic Current Reduction Method Suitable for Marine Two-stage Inverter[J].Marine Electric & Electronic Technology,2020(4):5-9. |
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| Authors: | Wang Wentao |
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| Affiliation: | (Wuahan Second Ship Design and Research Institute,Wuhan 430064,China) |
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| Abstract: | The propagation mechanism of second harmonic current(SHC)in marine two-stage inverter is analyzed.Besides,shortcomings accompanied by reducing the cut-off frequency of the front-end DC-DC converter to suppress SHC is pointed out from perspective of output impedance.Therefore,a modified reference of an intermediate bus capacitor voltage based SHC reduction method is proposed.The method is easy to implement and is able to suppress the SHC effectively without sacrificing the dynamic performance of converter.Experimental results verify the feasibility and effectiveness of the proposed method. |
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| Keywords: | inverter second harmonic current reduction dynamic performance |
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