Research on Distributed User Photovoltaic Power Supply Bidirectional Measurement and Energy Management Technology

With the development of distributed energy and energy storage devices and the increasing of AC / DC load demand, the AC / DC hybrid microgrid with the advantages of AC microgrid and DC microgrid has been paid attention to. The energy flow path of AC / DC hybrid microgrid is complex and difficult to measure. In particular, the technology of DC bidirection measurement has become the focus of research at home and abroad. The breakthrough of the key technology of the bidirectional measurement is helpful to accurately calculate the cost of the power supply, electricity supply, and to protect the legitimate economic interests of users and power companies, and promote the rapid development of distributed energy generation.