高频交流链接技术充电电源

在高频交流链接技术（HF AC-link）充电电源理论、数值仿真和实验研究的基础上，研制了一台充电速率为60 kJ/s、输出电压为50 kV的样机。电源主要由LC三相滤波器、矩阵开关、串联谐振单元和高频变压器4部分组成，分别给出了这几个部分的详细设计。利用高频交流链接技术的优势和合理的结构设计，使得该充电电源的功率密度大于0.6 W/cm3，同时实验结果表明，该充电电源的功率因数大于0.95，效率大于90%。因此，该充电电源具有高功率密度、高功率因数和高效率的优点。

High frequency AC-link capacitor charging power supply

This paper describes the design and implementation of a 60 kJ/s capacitor charging power supply(CCPS)with output voltage of 50 kV, based on the theoretical, simulative and experimental research of high frequency(HF)AC-link technology. Design details of the power supply are reported, which consists of EMI filter, matrix switch， LC resonant bank and HF transformer. A high power density of above 0.6 W/cm3 is achieved with the CCPS, by utilizing various technologies on HF AC-Link topology and proper packaging. The experimental results demonstrate that the power factor and efficiency of the CCPS are higher than 0.95 and 0.90， respectively. In a word, the CCPS features high power density, high power factor and high efficiency.