直流微电网：分布式电源、储能装置、负荷等均连接至直流母线，直流网络再通过电力电子逆变装置连接至外部交流电网。直流微电网通过电力电子变换装置可以向不同电压等级的交流、直流负荷提供电能，分布式电源和负荷的波动可由储能装置在直流侧调节。(DC microgrid: Distributed generators, energy storage devices and loads are connected to DC bus, and DC network is connected to external AC network through power electronic inverters. DC microgrid can provide power to AC and DC loads of different voltage levels through power electronic conversion devices, and the fluctuation of distributed generation and load can be regulated by energy storage devices on the DC side.)