DC microgrids have higher efficiency, better current carrying capacity, and faster response compared to the conventional ac systems. They also provide more natural interface with many types of renewable energy resources (RERs) and energy storage systems (ESSs), as well as better compliance with consumer electronics. These facts lead to increased applications of dc microgrid-type power architectures in remote households, data/telecom centers, renewable energy systems, electric vehicle charging stations, ships, aircrafts, and so on. Bidirectional dc/dc power converters (BDCs) constitute the fundamental building blocks of dc microgrids. They can be isolated or non-isolated and operated independently or in parallel to manage the power flow between sources and the dc microgrid. They can also be stacked together to operate in the so-called solid-state transformer architecture, which manages the power flow between dc microgrid and the upstream distribution network. The reliability, stability, efficiency, and power density of the BDC become very crucial for the dc microgrids. There are thus increasing research efforts made on the topology, modeling, control, and reliability of the BDC.

中文翻译：

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客座社论特刊，涉及直流微电网中双向DC / DC转换器的拓扑，建模，控制和可靠性

与传统的交流系统相比，直流微电网具有更高的效率，更好的载流能力和更快的响应。它们还提供了与许多类型的可再生能源（RER）和储能系统（ESS）的更自然的接口，以及与消费电子产品的更好兼容性。这些事实导致直流微电网型电源架构在偏远家庭，数据/电信中心，可再生能源系统，电动汽车充电站，船舶，飞机等中的应用越来越广泛。双向dc / dc功率转换器（BDC）构成了dc微电网的基本构建模块。它们可以是隔离的也可以是非隔离的，并且可以独立或并行运行，以管理电源与直流微电网之间的功率流。它们也可以堆叠在一起以在所谓的固态变压器架构中运行，该架构管理直流微电网和上游配电网络之间的功率流。对于直流微电网，BDC的可靠性，稳定性，效率和功率密度变得至关重要。因此，在BDC的拓扑，建模，控制和可靠性方面进行了越来越多的研究。