| 刘春喜,徐辰,李磊,常洪赫.基于改进蛇群算法的混合三电平DAB变换器电流应力优化策略[J].电子测量与仪器学报,2026,40(6):271-282 |
| 基于改进蛇群算法的混合三电平DAB变换器电流应力优化策略 |
| Current stress optimization strategy for hybrid three-level DAB converterbased on the improved snake swarm algorithm |
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| DOI： |
| 中文关键词: 混合三电平双有源桥变换器 双重移相控制 改进蛇群优化 电流应力 |
| 英文关键词:hybrid three-level dual active bridge converter dual phase shift control ISO current stress |
| 基金项目:国家自然科学基金面上项目（52477191）、辽宁省教育厅科学研究经费重点攻关(LJ2020ZD004)资助项目 |
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| Author | Institution |
| Liu Chunxi | Faculty of Electrical and Control Engineering,Liaoning Technical University, Huludao 125105,China |
| Xu Chen | Faculty of Electrical and Control Engineering,Liaoning Technical University, Huludao 125105,China |
| Li Lei | Faculty of Electrical and Control Engineering,Liaoning Technical University, Huludao 125105,China |
| Chang Honghe | Faculty of Electrical and Control Engineering,Liaoning Technical University, Huludao 125105,China |
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| 摘要点击次数: 34 |
| 全文下载次数: 13 |
| 中文摘要: |
| 针对二极管钳位型混合三电平双有源桥变换器的电流应力优化与变换器的效率提高存在的难题，设计了一种基于双重移相控制的最小电流应力优化控制方案，利用改进的蛇群优化算法搜索满足电流应力最小化的最佳移相组合。首先，针对蛇群优化算法中存在易陷入局部最优、参数敏感性强等问题，通过引入北方苍鹰算法的捕食机制以增强全局搜索能力并降低参数敏感性，有效增强了算法的全局搜索能力与收敛稳定性，从而提高最优移相组合的搜索精度；通过在惩罚函数中引入基于电流应力、功率以及电压偏差等多种约束条件，进一步缩小了搜索范围。最后，通过搭建仿真平台并结合实验验证，结果为所提出的控制方法相较于拉格朗日乘子法在低功率时电流应力降低了24％，在高功率时降低了13％，结果表明所提出的改进策略有效减小了电流应力验证了所提控制方法的可行性，有效降低电流应力并改善能量传输特性。 |
| 英文摘要: |
| To address the challenges of current stress optimization and efficiency improvement in diode-clamped hybrid three-level dual active bridge converters, this study proposes a dual-phase-shifting control scheme based on minimum current stress optimization. The improved snake swarm optimization algorithm is employed to search for optimal phase-shifting combinations that minimize current stress. First, to overcome the snake swarm algorithm’s susceptibility to local optima and high parameter sensitivity, the Northern Condor Algorithm’s predation mechanism is introduced to enhance global search capability and reduce parameter sensitivity, thereby improving convergence stability and search accuracy for optimal phase-shifting combinations. Additionally, constraint conditions based on current stress, power, and voltage deviations are incorporated into the penalty function to further narrow the search range. Experimental validation through simulation platforms demonstrates that the proposed control method reduces current stress by 24% at low power levels and 13% at high power levels compared to the Lagrange multiplier method. These results confirm the effectiveness of the improved strategy in minimizing current stress, validating the feasibility of the proposed control approach, and enhancing energy transfer characteristics. |
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