电源学报2025，Vol.23Issue(2)：21-30,10.DOI:10.13234/j.issn.2095-2805.2025.2.21
基于组合双重移相的双有源桥DC-DC变换器电流应力优化控制
Optimal Control of Current Stress of Dual-active-bridge DC-DC Converter Based on Combined Dual-phase-shifting
摘要
Abstract
To address the issue that a dual-active-bridge DC-DC converter will produce large current stress when voltages mismatch and result in a large reduction of its efficiency,a combined dual-phase-shifting(CDPS)control strategy is proposed,which combines dual-internal-phase-shifting(DIPS)and interlaced-dual-phase-shifting(IDPS).First,the working principles of the two control strategies are analyzed,and the mathematical models of transmission power and current stress are established.Second,with the minimum current stress as the objective,the optimal phase-shifting ratios are solved by using the Lagrange multiplied method under the Karush-Kuhn-Tucker condition.Third,the optimization methods under the two control strategies are combined according to different voltage ratios and transmission power.The CDPS control is used to obtain the optimal solution of current stress,which is compared with those obtained under the existing single-phase-shifting and dual-phase-shifting control strategies.Results show that the proposed control strategy can further reduce the current stress and reactive power under the condition of high voltage ratios and improve the efficiency.Finally,an experimental prototype was built to verify the feasibility of the proposed control strategy.关键词
双有源桥/双重移相/电压比/电流应力/优化控制Key words
Dual-active-bridge/dual-phase-shifting/voltage ratio/current stress/optimal control分类
信息技术与安全科学引用本文复制引用
余伟臣,高明,干方宇,石健将..基于组合双重移相的双有源桥DC-DC变换器电流应力优化控制[J].电源学报,2025,23(2):21-30,10.基金项目
国家自然科学基金资助项目(52077199)This work is supported by National Natural Science Foundation of China under the grant 52077199 （52077199）
