Research On Parameters Optimization Of Energy Router System

In recent years,new energy technologies and energy storage technologies have been rapidly developed.Traditional single centralized power generation methods are gradually turning to centralized power generation and distributed power generation.The combination of centralized power generation and distributed power generation makes electricity.The flow pattern also changes,and the electric energy changes from one-way flow to multi-directional flow,and the energy flow,management and control in the power grid become more complicated.Therefore,in the future,the power grid must not only meet the complexity of power grid control,but also have the requirement of multi-directional power flow.Energy Internet is built on the premise of smart grid,introducing intelligent distributed network technology,realizing the two-way flow of energy and information between distributed power generation systems,providing a platform for energy exchange and network sharing,so as to facilitate large The scale renewable energy can be safely connected to the grid and utilized by the power system efficiently.The microgrid and the intelligent cell are used as autonomous units to form a bottom-up interconnected architecture of multiple energy units.The energy routing system is a product derived from the concept of energy Internet.It is the key equipment for managing renewable energy in the energy Internet.It can ensure the multi-directional and flexible transmission of energy in the system,and promote the safe,reasonable and real-time characteristics of energy flow.Renewable energy can be used most efficiently and efficiently and reliably.In this paper,the topology of energy router system is classified,screened and compared.A topology based on DC bus is proposed.The corresponding main circuit diagram and the form of power electronic converter are given.Then,the key device parameters in the system are designed,and the compromise scheme is selected according to the design requirements,and the corresponding calculation formula is given.Then,the control and research of the home energy router system is carried out,including the system operation mode and control method.Due to many factors such as light intensity,energy storage battery status and load demand,the system has multiple operating modes.An effective energy management strategy enables the energy of the system to be effectively controlled,realizes the rational use and coordinated management of distributed energy,and verifies the effectiveness of energy management through system mode switching simulation.Finally,the large signal stability of the energy routing system is studied and analyzed.The source converter of the energy routing system is classified into Bus Voltage Controlled Converters(BVCCs)and Bus Current Controlled Converters(BCCCs),and is reasonably simplified to obtain a certain work of the energy routing system.The large signal simplified model in the mode,the effectiveness of the large signal model is verified by simulation.Based on the mixed potential function theory,the system derives sufficient conditions for stable operation under large signal interference conditions,which is the system's large signal stability criterion.In addition,according to the large signal stability criterion,the stable boundary of key parameters is obtained,and the key device parameters and control parameters in the system are effectively optimized.The correctness of the large signal stability analysis in this paper is demonstrated by simulation and experimental results.This paper explores the research of energy router system and its stability analysis method,and optimizes the parameter design based on the stability analysis results.It provides guidance on the overall design and selection of key parameters for a home energy router system.