Topology and control strategy of MMC five-port energy router

With the rapid development of renewable energy sources and new load technologies, the energy router has emerged as a new type of power conversion and distribution equipment. But most energy routers only support single input and single output structures, limiting their ability to access different types and levels of power supply and loads. This paper introduces a energy router that supports multi-voltage forms and levels to meet the diversified needs of distributed power supply and AC/DC load. Fristly, the topological structure of the energy router is deeply analyzed, and the AC/DC power grid with different voltage levels is design. Secondly, this paper studies the control strategy of each part of the energy router, and optimizes the control algorithm to improve the operation stability and efficiency. Finally, using MATLAB as a platform, paper build a simulation model, analyze and test the control strategy in detail, and verify its feasibility and effectiveness.