一种单级高频AC-AC变换器的低通输入滤波器的参数设计

doi:10.19595/j.cnki.1000-6753.tces.151644

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Abstract Single-stage high-frequency AC-AC converter transforms line voltage into high frequency (generally larger than 100kHz) sinusoidal ac voltage. Since the power factor correction cell operates in DCM, a large number of high-order harmonic currents appear. Therefore, low-pass input filter is needed to reduce harmonic currents. The parameters of an input filter not only determine its filtering performance but also have effects on its input power factor. Thus how to determine these parameters above is very important. In this paper, the equivalent circuits of utility frequency component and switching frequency component are presented respectively. And then some related preset parameters are set adaptively according to the input and output conditions of the filter, meeting the demand of Energy Star on power factor. Ultimately, taken LC low pass filter as an example, the parameters design procedure of the low-pass input filter is presented in detail and a programmed design method is concluded. The simulations and experiments are conducted. The results have verified the correction of the theoretical analysis. The proposed design method for low-pass input filter is also applicable for the single-stage active power factor corrector. Moreover, it provides an important reference to design other type of low-pass input filter.

Key words： Single-stage high-frequency AC-AC converter input filter power factor

Received: 10 October 2015 Published: 19 July 2017

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TM46

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	Luo Quanming
	Ma Kun
	He Qingqing
	Huang Jian
	Zhou Luowei

Cite this article:

Luo Quanming,Ma Kun,He Qingqing等. Parameter Design of the Low-Pass Input Filter for a Single-Stage High-Frequency AC-AC Converter[J]. Transactions of China Electrotechnical Society, 2017, 32(13): 100-108.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.151644 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I13/100

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