双有源桥变换器双移相控制动态特性优化方法  

Dynamic Characteristic Optimization Method of Dual Phase Shift Control for Dual Active Bridge Converter

作　　者：李善寿[1] 王浩[1] 叶伟 LI Shanshou;WANG Hao;YE Wei(Anhui Province Key Laboratory of Intelligent Building and Building Energy Saving,Anhui Jianzhu University,Hefei 230022,China;Anhui Nari-Jiyuan Electric Power System Technology Co.,Ltd,Hefei 230088,China)

机构地区：[1]安徽建筑大学智能建筑与建筑节能安徽省重点实验室,合肥230022 [2]安徽南瑞继远电网技术有限公司,合肥230088

出　　处：《电源学报》2024年第5期86-91,共6页Journal of Power Supply

基　　金：国家自然科学基金资助项目(61901006);博士科研启动资助项目(2020QDZ40)。

摘　　要：为了提高双移相控制的双有源桥DAB(dual active bridge)变换器负载切换的动态响应性能及减小电流应力,研究了1种改进型双移相NDPS(novel dual phase shift)控制方法,通过改变传统双移相TDPS(traditional dual phase shift)控制内移相角移动方向,重构了传输功率与移相比的关系,增大了移相比调节范围。研究了电流应力最小化条件下双移相控制最优移相比的求解方法,对比分析NDPS与TDPS控制方式负载切换时的动态响应特性。最后搭建了DAB变换器实验平台对理论分析进行实验验证,实验结果表明,轻载条件下,基于电流应力最小化方法得到的最优移相比组合可以有效减小电流应力,同时NDPS比TDPS控制方式有更好的动态响应特性。To improve the dynamic response performance of a dual active bridge(DAB)converter with dual phase shift(DPS)control during load switching and reduce the current stress,a novel dual phase shift(NDPS)control method is studied.By changing the shifting direction of the internal phase shift angle in traditional dual phase shift(TDPS),the relationship between the transmission power and phase shift ratio is reconstructed,and the adjusting range of phase shift ratio is extended.The solving method for the optimal phase shift ratio of DPS control under the condition of current stress minimization is studied,and the dynamic response characteristics of NDPS and TDPS control under load switching conditions are compared and analyzed.Finally,an experimental platform of DAB converter was built to verify the theoretical analysis,and experimental results show that the optimal phase shift ratio combination based on current stress minimization can effectively reduce the current stress under light load conditions.At the same time,NDPS control has better dynamic response characteristics than TDPS control.

关 键 词：双有源桥变换器 双移相控制 电流应力 动态特性 

分 类 号：TM46[电气工程—电器]