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  

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

作　　者：赵斌 戴剑骁 顾洋 ZHAO Bin;DAI Jianxiao;GU Yang(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100039,China)

机构地区：[1]中国科学院空天信息创新研究院,北京100190 [2]中国科学院大学,北京100039

出　　处：《电子与信息学报》2024年第11期4112-4122,共11页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(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。The modular high-voltage power supply,characterized by high efficiency,reliability,and reconfigurability,has found widespread application in high-power high-voltage devices.Among them,the input series output series topology based on the series-parallel resonant converter is suitable for high-frequency highvoltage operating environments,offering advantages such as reduced power losses,winding dielectric losses,and utilizing parasitic parameters of multi-stage transformer.It has broad prospects for application.Current research on this topology primarily focuses on theoretical analysis and efficiency optimization.In practical highvoltage environments,the high-voltage isolation issues between windings of multi-stage transformers have not been effectively addressed.In this paper,a design of shared primary windings for multi-stage transformers is proposed to simplify the high-voltage isolation issues inherent in traditional transformer single-stage winding methods.However,this winding scheme can lead to non-uniform voltage distribution and voltage divergence in multi-stage transformers.Therefore,based on utilizing the parasitic parameters of diodes in transformers and voltage doubling rectifier circuits,an improved topology design is proposed to effectively address the uneven voltage distribution issue.Simulation and experimental validations were conducted,and the results from both simulations and experiments confirm the effectiveness of the proposed high-voltage isolation structure with shared primary windings and the improved topology.

关 键 词：模块化高压电源 高压隔离 串并联谐振变换器 

分 类 号：TN7[电子电信—电路与系统] TN86