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引用次数: 0
摘要
为了减少半导体器件中的开关数量和电压应力,本文提出了一种新型单相转换器,将有源功率因数校正(APFC)与开关电容器转换器相结合。此外,通过集成升压转换器和开关电容器单元,动态电压调节和电压增益也得到了改善。不再需要级间大容量电容器。为了获得开关电容器单元的电压提升能力并保持高功率因数,提出了一种在单元中重新分配电压的平均电流控制方法。为了初步研究和验证所提出的转换器,本文进行了理论分析和仿真。此外,还制作了一个具有两种不同配置的 500 W 原型进行实验验证。所提出的转换器在 600 V 输出电压下可同时达到 95.62% 的最高效率、0.99 的功率因数和 3.55% 的总谐波失真。
Composite Converter Combined APFC with Switched-capacitor Converter
To reduce switch numbers and voltage stress in semiconductor devices, this paper proposes a novel single-phase converter combined Active Power Factor Correction (APFC) with switched-capacitor converter. In addition, dynamic voltage regulation and voltage gain are improved by integrating the boost converter and switching capacitor cells. The interstage bulk capacitor is no longer needed. An average current control with redistribution of voltage in cells is proposed to obtain voltage lift ability of the switching capacitor cells and maintain a high-power factor. To study and verify the proposed converter preliminarily, theoretical analysis and simulation are presented in the paper. Furthermore, a 500 W prototype with two different configurations is built for experimental verification. The proposed converter can reach 95.62% of maximum efficiency, 0.99 of power factor, and 3.55% of THD with 600 V output voltage, simultaneously.
期刊介绍:
The CSEE Journal of Power and Energy Systems (JPES) is an international bimonthly journal published by the Chinese Society for Electrical Engineering (CSEE) in collaboration with CEPRI (China Electric Power Research Institute) and IEEE (The Institute of Electrical and Electronics Engineers) Inc. Indexed by SCI, Scopus, INSPEC, CSAD (Chinese Science Abstracts Database), DOAJ, and ProQuest, it serves as a platform for reporting cutting-edge theories, methods, technologies, and applications shaping the development of power systems in energy transition. The journal offers authors an international platform to enhance the reach and impact of their contributions.