摘要
通过分析电力电子变压器(PET)中的双有源全桥(DAB)DC-DC变换器的运行特征及所面临的问题,针对输入串联输出并联双有源全桥DC-DC变换器,基于三重相移(TPS)提出一种多模块优化功率平衡控制方法以同时提高变换器的效率及动态性能,并实现各个模块的传输功率均衡。相比于传统的输入电压均衡控制方法,该方法在不需要增加额外传感器的情况下,可以进一步提高变换器的效率,加强变换器对于输入电压突变时的响应能力并实现各个DAB模块的传输功率平衡。最后,搭建以TMS320F28335+FPGA_6SLX45为核心控制器的三单元输入串联输出并联DAB变换器小功率实验样机,对所提多模块优化功率平衡控制方法与输入电压均衡控制方法进行对比实验研究,验证了所提算法的正确性与有效性。
Through the analysis of the operation characteristics and problems of dual-activebridge(DAB)DC-DC converters in the power electronic transformer(PET),this paper proposed a multi-module optimized power balance control scheme with triple phase-shift(TPS)to improve the efficiency,enhance the dynamic response and balance the transmission for the input-series-outputparallel operated DAB converters.Compared to traditional input voltage balance control scheme,the proposed control scheme can further improve the efficiency and dynamic performance under the input voltage step-change condition without increasing additional sensors.Finally,the traditional input voltage balance control and proposed multi-module optimized power balance control schemes were compared in a scale-down three-cell experimental platform using TMS320F28335+FPGA_6SLX45 as the core controller.The experimental results have verified the excellent performance of the proposed scheme and the theory analysis.
作者
安峰
王嵩
杨柯欣
An Feng;Wang Song;Yang Kexin(School of Electrical Engineering Southwest Jiaotong University Chengdu 610031 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2018年第16期3732-3742,共11页
Transactions of China Electrotechnical Society
基金
国家自然科学基金青年基金资助项目(51707167)
作者简介
安峰,男,1994年生,硕士研究生,研究方向为电力变流技术及其应用。E-mail:anfengswjtu@163.com。;王嵩,男,1983年生,讲师,硕士生导师,研究方向为智能控制与列车黏着控制技术。E-mail:songwang@swjtu.edu.cn(通信作者)。
