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输入串联输出串联型模块化高压电源功率变换拓扑改进设计

赵斌 戴剑骁 顾洋

赵斌, 戴剑骁, 顾洋. 输入串联输出串联型模块化高压电源功率变换拓扑改进设计[J]. 电子与信息学报. doi: 10.11999/JEIT240090
引用本文: 赵斌, 戴剑骁, 顾洋. 输入串联输出串联型模块化高压电源功率变换拓扑改进设计[J]. 电子与信息学报. doi: 10.11999/JEIT240090
ZHAO Bin, DAI Jianxiao, GU Yang. Improved Topology of Modular High-voltage Power Converter with Input Series Output Series Configuration[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT240090
Citation: ZHAO Bin, DAI Jianxiao, GU Yang. Improved Topology of Modular High-voltage Power Converter with Input Series Output Series Configuration[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT240090

输入串联输出串联型模块化高压电源功率变换拓扑改进设计

doi: 10.11999/JEIT240090
基金项目: 国家自然科学基金(62201546)
详细信息
    作者简介:

    赵斌:男,研究员,研究方向为高压、高频变换器以及高频磁性元器件

    戴剑骁:男,硕士生,研究方向为高压电源技术

    顾洋:男,硕士生,研究方向为高压功率变换器

    通讯作者:

    赵斌 zhaobin@aircas.ac.cn

  • 中图分类号: TN7; TN86

Improved Topology of Modular High-voltage Power Converter with Input Series Output Series Configuration

Funds: The National Natural Science Foundation of China (62201546)
  • 摘要: 模块化高压电源具有高效率、高可靠性、可重构性等特点在大功率高压器件中得到广泛应用。其中基于串并联谐振变换器的输入串联输出串联型功率变换拓扑适用于高频高压工作环境,具有减少功率损耗,绕组介质损耗,利用多级变压器寄生参数等优势,有广泛的应用前景。目前关于该拓扑的研究主要集中于理论分析和效率优化,在实际高压环境应用中多级变压器绕组间存在的高压隔离问题还未得到有效解决,该文提出多级变压器共用原边绕组的设计,简化传统变压器单级绕制方式所存在的高压隔离问题。然而该绕制方案会造成多级变压器不均压和电压发散现象,因此该文同时基于利用变压器和倍压整流电路中二极管的寄生参数,提出改进的拓扑设计,有效解决了分压不均问题,进行了仿真验证与试验验证。仿真结果与实验结果均证明了所提共用原边绕组的高压隔离结构和改进拓扑的有效性。
  • 图  1  带CW倍压整流电路的单级LCC谐振变换器

    图  2  高压电源模块化级联方式

    图  3  典型谐振变换器拓扑

    图  4  输入串联输出串联型模块化LCC谐振变换器

    图  5  LCC谐振变换器波形图及基波波形图

    图  6  RC等效电路图

    图  7  谐振网络元件参数计算流程图

    图  8  输入串联输出串联型3级变压器样机示意图

    图  9  输入串联输出串联型多级变压器原边分压不均和发散问题仿真图

    图  10  变压器寄生参数和CW倍压整流电路二极管寄生电容

    图  11  输入串联输出串联型LCC谐振变换器共用变压器原边绕组的改进拓扑

    图  12  改进拓扑均压仿真验证图

    图  13  改进拓扑电气性能仿真验证图

    图  14  实验样机

    图  15  样机电气性能与软开关实验波形图

    图  16  样机电气性能实验波形图

    图  17  样机多级变压器副边电压实验波形图

    表  1  不同级联方式应用场景

    级联方式 输入串联输出串联 输入串联输出并联 输入并联输出串联 输入并联输出并联
    适用场合 高输入、输出电压 高输入电压高输出电流 高输入电流高输出电压 高输入、输出电流
    下载: 导出CSV

    表  2  谐振变换器分类及应用场景

    特点LC串联LC并联LCC串并联LLC串并联CLL串并联
    电压增益0.5~1.01.0~10.00.5~3.01.0~2.51.0~2.5
    传输效率(%)9090969796
    适用场合中压大功率中压大电流高压大功率中压高效率中压高频率
    下载: 导出CSV

    表  3  电气性能参数和谐振元件参数

    参数名称 描述 参数值
    Vin 输入电压 70 V
    Vo 输出电压 7100 V
    C1, C2,···, C6n 倍压整流电路电容 47 nF
    Ro 负载电阻 100 kΩ
    Lr 串联谐振电感 12.5 μH
    Cr 串联谐振电容 10 nF
    fs 开关频率 500 kHz
    下载: 导出CSV
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出版历程
  • 收稿日期:  2024-02-22
  • 修回日期:  2024-10-09
  • 网络出版日期:  2024-10-15

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