基于TPS双有源桥DC-DC回流功率优化  

Based on TPS Dual Active Bridge DC-DC Reflow Power Optimization

作　　者：陈明伟 CHEN Mingwei(School of Electrical and Information Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学电气与信息工程学院,安徽淮南232001

出　　处：《电工技术》2025年第5期48-51,57,共5页Electric Engineering

基　　金：安徽省重点研究与开发计划面上攻关项目(编号202004a05020080)。

摘　　要：双有源桥(DAB)因其高功率密度、可控性灵活,同时能适应不同应用场景下的电能变换需求,从而在电力系统得到广泛应用,然而当DAB变压器两端的输入电压与输出电压不匹配时,回流功率会明显增加。针对这一问题,提出一种分段优化控制策略。首先,根据三重移相(TPS)的特性,建立电感电流模型,推导出回流功率的移相比取值范围;然后,通过移相比定义输出功率的临界点,将输出功率进行分段控制,在MATLAB/Simulink进行仿真,结果表明在输出功率范围内均能实现电路的零回流功率运行状态。Dual active bridge(DAB)has been widely used in power systems due to its high power density,flexible controllability,and also adapting to the power conversion needs in different application scenarios;however,when the input voltage at both ends of the DAB transformer does not match the output voltage,the return power will increase significantly.To address this problem,a segmented optimal control strategy is proposed.Firstly,according to the characteristics of triple phase shift(TPS),the inductor current model is established,and the value range of the shift ratio of the return power is deduced;then,the critical point of the output power is defined by the shift ratio,and the output power is controlled by segmentation,and the simulation is carried out in MATLAB/Simulink,which shows that the circuit can realize the zero-return-power operation state in the range of the output power.

关 键 词：DC-DC变换器 三重移相 回流功率 优化控制 

分 类 号：TM46[电气工程—电器]