| 基于磁集成的双Boost无桥PFC变换器研究 |
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| 引用本文： | 蔡逢煌,王群兴,苗中磊,杜伟煌,苏先进.基于磁集成的双Boost无桥PFC变换器研究[J].电源学报,2020,18(5):95-100. |
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| 作者姓名： | 蔡逢煌 王群兴 苗中磊 杜伟煌 苏先进 |
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| 作者单位： | 福州大学电气工程与自动化学院；福州大学-科华恒盛电力电子技术研究中心,福州大学电气工程与自动化学院；福州大学-科华恒盛电力电子技术研究中心,福州大学电气工程与自动化学院；福州大学-科华恒盛电力电子技术研究中心,福州大学电气工程与自动化学院；福州大学-科华恒盛电力电子技术研究中心,福州大学-科华恒盛电力电子技术研究中心 |
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| 基金项目： | 厦门科华恒盛科技创新基金资助项目；福州市科技计划项目 |
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| 摘 要： | 传统双Boost无桥PFC(power factor correction)变换器去除了整流桥结构，变换器效率得到了提高，但由于需要两个电感，整个系统功率密度小，体积大。分析了四种磁集成技术，并采用了一种中柱低磁阻磁路电感集成方式，将双Boost无桥PFC变换器的两个电感集成来缩减系统体积，通过分析和计算，该电路拓扑避免了环流问题。采用了改进无差拍控制算法来消除采样和计算延迟所带来的控制偏差，提升了输入电流的控制精度。最后搭建了一台750W的实验样机，验证了理论分析的正确性。
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| 关 键 词： | 磁集成 低阻磁路 双Boost 功率因数校正 |
| 收稿时间： | 2018/11/29 0:00:00 |
| 修稿时间： | 2020/4/24 0:00:00 |
Research on Bridgeless Dual Boost PFC Converter Based on Integrated Magnetics |
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| CAI Fenghuang,WANG Qunxing,MIAO Zhonglei,DU Weihuang and SU Xianjin.Research on Bridgeless Dual Boost PFC Converter Based on Integrated Magnetics[J].Journal of power supply,2020,18(5):95-100. |
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| Authors: | CAI Fenghuang WANG Qunxing MIAO Zhonglei DU Weihuang and SU Xianjin |
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| Affiliation: | College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350116, China;Fuzhou University-Kehua Hengsheng Power Electronics Technology Research Center, Fuzhou 350116, China,College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350116, China;Fuzhou University-Kehua Hengsheng Power Electronics Technology Research Center, Fuzhou 350116, China,College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350116, China;Fuzhou University-Kehua Hengsheng Power Electronics Technology Research Center, Fuzhou 350116, China,College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350116, China;Fuzhou University-Kehua Hengsheng Power Electronics Technology Research Center, Fuzhou 350116, China and Fuzhou University-Kehua Hengsheng Power Electronics Technology Research Center, Fuzhou 350116, China |
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| Abstract: | By omitting the structure of a bridge rectifier, the efficiency of the traditional bridgeless dual Boost power factor correction (PFC) converter is improved. However, it has a small power density and a large volume due to the need of two inductors. In this paper, four kinds of integrated magnetic technologies were analyzed, and a mid-column low-reluctance magnetic circuit inductor integrated method was adopted, in which two inductors of the bridgeless dual Boost PFC converter were integrated to reduce the system volume. According to analysis and calculations, the proposed circuit topology can avoid the circulation problem. An improved deadbeat control algorithm was applied to eliminate the control deviation resulting from sampling delay and calculation delay, thereby improving the control accuracy of input current. Finally, a 750W experimental prototype was built, and results verified the theoretical analysis. |
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| Keywords: | integrated magnetics low-reluctance magnetic circuit dual Boost power factor correction |
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