Research on Design of Energy Router based on Distributed Generation

With a large number of distributed generations connected to power systems, the structure and the operation mode of the traditional power systems are gradually changed. As an inevitable trend of the development of future power grid, energy internet has received an increasing attention from governments and experts, and become a hot topic in current researches. Furthermore, as a key interface device of the energy internet, energy routers have the characteristics of the unified power interface and the communication interface. As a result, this paper researches on the design of energy routers based on distributed generation. The energy routers are composed of the core communication part and the energy transmission part. By a comprehensive analysis and design of the energy transmission part of the energy router, the purpose of high efficiency, stability and energy saving of the power supply is achieved through constructing the dynamic interaction between DC-AC double buses. By modeling and simulating the energy transmission part of the energy router, the simulation results verify that the power supply stability and the power quality on both the AC side and the DC side of the system can meet the current requirements of the power quality in distributed generation and power system operation.