在公路直流微电网中，电动汽车充电行为的时间特性和充电方式特性会对直流母线电压造成不同程度的冲击，高渗透率的电动汽车负荷对“源-荷-储”协调控制提出新的挑战。通过分析公路直流微电网的交通负荷特性和微源特点，提出了一种基于直流母线电压偏差的电氢耦合系统多源协调控制策略。此控制策略以蓄电池作为调压核心元件，通过检测变流器端口直流母线电压波动来实现协调自洽运行，无需通信即可实现系统的功率平衡。为避免蓄电池因荷电状态（SOC）过界而退出运行，设计了一种多源自适应下垂控制器，使氢能单元主动响应SOC变化，减少蓄电池SOC管理造成的不平衡功率，抑制SOC向边界值的趋近速度，实现SOC的动态平衡。最后，在Matlab/Simulink中验证了所提控制策略的有效性。

In the highway DC microgrid, the time characteristics and charging mode characteristics of electric vehicle charging behavior may cause varying degrees of impact on the DC bus voltage, and the high-penetration rate of electric vehicle loads presents new challenges to the coordination control of the “source-load-storage” system. By analyzing the traffic load characteristics and micro-source characteristics of the highway DC microgrid, a multi-source coordinated control strategy based on DC bus voltage bias for electro-hydrogen coupling system is proposed. This control strategy uses the battery as the core component of voltage regulation to achieve coordinated and self-consistent operation by detecting the fluctuation of the DC bus voltage at the inverter port, without the need for communication to achieve power balance of the system. To avoid the battery exiting operation due to the crossing of the state of charge (SOC), a multi-source adaptive droop controller is designed, enabling the hydrogen unit to actively respond to SOC changes, reduce the unbalanced power caused by battery SOC management, suppress the speed of SOC approaching the boundary value, and achieve dynamic balance of SOC. Finally, the effectiveness of the proposed control strategy is verified in Matlab/Simulink.

国家重点基础研究发展计划项目(2021YFB2601605)