大功率电磁发射机谐波分析与滤波器设计

IF 4.6 Q1 OPTICS Journal of Physics-Photonics Pub Date : 2023-11-01 DOI:10.1088/1742-6596/2636/1/012038
Qingke Meng, Yiming Zhang, Xuhong Wang, Junxia Gao
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引用次数: 0

摘要

摘要为了有效抑制大功率电磁发射机输出电压中所含的高次谐波,推导了双极脉宽调制(SPWM)电路输出电压的波形表达式,可以准确获得逆变器桥式传输电压中的基波和各次谐波含量,为输出滤波器的设计提供理论依据。同时,在MATLAB仿真计算的基础上,综合考虑滤波器电感上的基波压降、电感电流纹波和无功容量,提出了一种基于大功率电磁变送器的输出LC滤波器的设计方法。最后,通过发射机的现场实验验证了该设计方法的可行性,输出滤波效果良好。
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Harmonic analysis and filter design based on high power electromagnetic transmitter
Abstract In order to effectively suppress the higher harmonics contained in the output voltage of high-power electromagnetic transmitter, the waveform expression of the output voltage of bipolar pulse width modulation (SPWM) circuit is derived, which can accurately obtain the fundamental wave and each harmonic content in the inverter bridge transmission voltage, and provide a theoretical basis for the design of output filter. At the same time, a design method of output LC filter based on high power electromagnetic transmitter is proposed based on MATLAB simulation calculation and considering the fundamental voltage drop, inductor current ripple and reactive power capacity on the filter inductor. Finally, the feasibility of this design method is verified by the field experiment of transmitter, and the output filtering effect is good.
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来源期刊
CiteScore
10.70
自引率
0.00%
发文量
27
审稿时长
12 weeks
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