Research on hybrid microgrid Networking mode based on energy Router

Abstract

AC-DC hybrid microgrid has the advantages of ac/DC power supply and consumption system. It has flexible operation mode, higher compatibility and expansibility, and can meet the access of various distributed power sources, energy storage units and loads. Meanwhile, it can reduce the energy loss caused by multistage power conversion in a single power supply and consumption mode.Energy router technology not only changes the networking pattern of traditional hybrid microgrid, but also provides the possibility of intelligent scheduling of multi-energy complementary system and independent consumption of clean energy.This study focuses on the networking mode of ac-DC hybrid microgrid based on energy router.In terms of the research on the networking mode of hybrid microgrid with multi-port energy router, based on the typical AC-DC coupling hybrid microgrid structure, this study proposed the topology structure of ac-DC hybrid microgrid based on energy router, namely the networking mode, in order to reduce the system cost and reduce the input amount of power to power converter. Then, the main units of the micro-grid — energy router, distributed photovoltaic, wind power and energy storage are analyzed one by one.Finally, the effectiveness of this networking mode in smoothing fluctuations, power reciprocity and reducing impact on distribution network is simulated and analyzed to verify the correctness and effectiveness of the proposed DC hybrid microgrid networking mode.