For a hybrid energy storage system consisting of battery and super-capacitor (SC) in More Electric Aircraft, a decentralised control strategy, which is based on the virtual impedance droop control, can implement the frequency domain allocation of load power avoiding communication delay and a single point of failure. Although the output voltage deviation and state-of-charge (SoC) limitation are solved by existing methods, it still suffers from settling time extending. Secondary voltage controls (SVCs) of virtual-droop-controlled for battery and SC are proposed to solve the issue. SVC for the output voltage is designed to compensate for the output voltage deviation in the battery converter based on virtual resistance droop control. SC converter, which is controlled by the SVC for input voltage in virtual capacitance droop control, enforces SC SoC back to the initial value and maintains consistent settling time. In this study, a set of detailed design methods for the controller parameters of SVC are developed not only to regulate the output voltage and SoC recovery but also to keep the same settling time. The results of the simulation and experiment validate the effectiveness of the proposed SVC and design method.

中文翻译：

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混合储能系统中虚拟降落控制的双向DC / DC转换器的次级电压控制

对于More Electric Air飞机中由电池和超级电容器（SC）组成的混合式能量存储系统，基于虚拟阻抗下降控制的分散控制策略可以实现负载功率的频域分配，从而避免通信延迟和通信延迟。单点故障。尽管可以通过现有方法解决输出电压偏差和充电状态（SoC）的局限性，但仍会遭受建立时间延长的困扰。为了解决这个问题，提出了用于电池和SC的虚拟降压控制的二次电压控制（SVC）。用于输出电压的SVC旨在基于虚拟电阻下降控制来补偿电池转换器中的输出电压偏差。SC转换器，由SVC控制，用于虚拟电容下降控制中的输入电压，强制SC SoC恢复到初始值并保持一致的建立时间。在这项研究中，针对SVC的控制器参数开发了一套详细的设计方法，不仅可以调节输出电压和SoC恢复，还可以保持相同的建立时间。仿真和实验结果验证了所提出的SVC和设计方法的有效性。