变匝比交错并联三电平正激变换器

发布时间：2018-04-14 01:08

本文选题：交错并联正激变换器 + 变匝比　；参考：《中国电机工程学报》2017年12期

【摘要】：通过在双管正激变换器的变压器二次侧增加一个整流二极管和一个高频开关管,提出一种变匝比交错并联三电平正激变换器。该变换器保留了交错并联双管正激变换器的优点,同时,根据不同的输入电压调整原副边匝比,使其具有宽输入电压适应范围;变换器整流输出三电平电压波形,利于减小输出滤波器体积,提高变换器的功率密度。详细分析了变匝比交错并联三电平正激变换器工作原理,比较了两电平和三电平工作模式,给出具体的参数设计。研制了一台2000W原理样机,实验结果验证了理论分析的正确性以及该变匝比技术的可行性。
[Abstract]:By adding a rectifier diode and a high frequency switch to the secondary side of the transformer of the dual-switch forward converter, a three-level forward converter with variable turn ratio interleaving in parallel is proposed.The converter retains the advantages of interleaved parallel dual-transistor forward converter, and adjusts the ratio of primary to secondary turn to make it have wide input voltage adaptive range according to different input voltages, and rectifies and outputs three-level voltage waveforms.It can reduce the output filter volume and increase the power density of the converter.The working principle of the three-level forward converter with variable turn ratio is analyzed in detail. The two-level and three-level operation modes are compared and the design of the parameters is given.A 2000W prototype is developed. The experimental results verify the correctness of the theoretical analysis and the feasibility of the variable turn ratio technique.
【作者单位】：南京工业大学电气工程与控制科学学院;南京航空航天大学电子信息工程学院;
【基金】：国家自然科学基金项目(51607086) 江苏省自然科学青年基金项目(BK20140944)~~
【分类号】：TM46

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