Energy Router-Based Optimal Scheduling Method for Multi-Terminal Interconnected AC-DC Hybrid Distribution Networks

With the rapid development of distributed renewable energy generation and medium and low-voltage direct current (DC) networking technology., the future distribution network will inevitably evolve to a complex AC-DC hybrid form, and the AC-DC hybrid system based on energy routers (ER) is a feasible operation structure., which not only improves the overall reliability of the system., but also optimises the operation mode of the system and reduces the system loss through flexible trend control. Firstly., a steady-state current calculation model of a multi-terminal interconnected AC-DC hybrid distribution network including an energy router is constructed to make full use of the flexible regulation capability of the energy router; based on this model., an optimal scheduling method with the objective of lowest operating cost is proposed. Finally., the method is verified by example simulation., and the results show that the method can significantly improve the operational efficiency and economy of the distribution network., enhance the reliability and stability of the system., and has a wide range of application prospects.