Adequate Usage Rate Control of Switching Cycles for DCM Buck PFC Converter
Adequate Usage Rate Control of Switching Cycles for DCM Buck PFC Converter
复制标题
DCM Buck PFC 转换器开关周期的充分使用率控制
DOI：
10.1109/jestpe.2018.2882585
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发表时间：
2020-03
影响因子：
5.5
通讯作者：
Tang Huanqi
中科院分区：
文献类型：
--
作者：
Yao Kai;Mao Chunyan;Chen Kaili;Li Lei;Tang Huanqi
Buck型功率因数校正变换器以其特有的优点在小功率场合得到了广泛的应用。在不连续导通模式操作中，电感器电流在开关周期的一部分期间为零，导致功率传输的整个开关周期中的无用时段。结果，电感器电流以及开关电流的峰值和均方根（RMS）值大。此外，功率器件的电流应力高，开关损耗也高。提出了一种新的开关周期充分利用率控制方法来改善能量传递的效果。与固定占空比控制相比，临界电感增大，主功率元件电流峰值和有效值减小。因此，提高了转换器的效率。该方法在低输入电压下产生较高的PF，而在高输入电压下产生较低的PF。同时，实现了输出涟漪电压的减小。在实验室中制作了一个原型，并给出了实验结果，以验证所提出的方法的有效性。
Buck power factor correction converter is widely used in low-power applications due to its specific advantages. In discontinuous conduction mode operation, the inductor current is zero during part of the switching cycle, leading to a useless period in the whole switching cycle of the power transmission. As a result, the peak value and the root-mean-square (RMS) value of the inductor current as well as the switch current are large. In addition, the current stress of the power devices is high, and so does the switching loss. A new method called adequate usage rate control of switching cycles to improve the effect of the energy transfer is proposed. Compared with the fixed duty ratio control, the critical inductance is increased, and the peak and rms current values of the main power components are reduced. Therefore, the efficiency of the converter is increased. The method brings about higher PF at low input voltages and lower PF at high input voltages. Meanwhile, a reduction of the output ripple voltage is achieved. A prototype is fabricated in the laboratory, and the experimental results are presented to verify the effectiveness of the proposed method.
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DOI：
10.1109/apec.2009.4802811
发表时间：
2009-03
期刊：
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition
影响因子：
--
作者：
L. Huber;L. Gang;M. Jovanovic
通讯作者：
L. Huber;L. Gang;M. Jovanovic
影响因子：
2
作者：
K. Y. Lee;Y. Lai
通讯作者：
K. Y. Lee;Y. Lai
影响因子：
7.7
作者：
Shang-Hsien Yang;Che-Hao Meng;Chao-Chang Chiu;Chih-Wei Chang;Ke-Horng Chen;Ying-Hsi Lin;Shian-Ru Lin;Tsung-Yen Tsai
通讯作者：
Shang-Hsien Yang;Che-Hao Meng;Chao-Chang Chiu;Chih-Wei Chang;Ke-Horng Chen;Ying-Hsi Lin;Shian-Ru Lin;Tsung-Yen Tsai
影响因子：
7.7
作者：
Xiang Lin;Faqiang Wang
通讯作者：
Xiang Lin;Faqiang Wang
影响因子：
6.7
作者：
Jong-Hu Park;Bo-Hyung Cho
通讯作者：
Jong-Hu Park;Bo-Hyung Cho