Integrated Railway Smart Grid Architecture Based on Energy Routers

Railway power system is an inseparable part of the power system,therefore,the intelligent architecture of the railway power system should also be focused on.The unique power supply characteristics of the railway power system are analyzed and integrated railway smart grid architecture based on energy routers is proposed.Importantly,three corresponding resilient mode control methods are suggested for the proposed architecture.In the fourth section,a simulation model corresponding to the resilient control mode is built and the simulation results prove the feasibility of the proposed control mode.Equally,for the novel network-connected backbone router(NCBR),a 1000 kVA,27.5/10 kV NCBR engineering prototype is used to prove its effectiveness in practical applications.Finally,a differentiation analysis is given,followed by conclusions regarding the traditional power system and proposed system.

Research on heritage characteristics based on railway architectural heritage database in Jinzhou section of the Peking-Mukden Railway

This research interprets the background of Jinzhou section of the Peking-Mukden Railway,and puts forward 65 heritages as cases based on the scope definition and investigation.After the data collection,processing,and visualization,the database composed of 9 sub-databases,with B/S architecture mode,is constructed based on SQL server platform.The ArcGIS tool is used to analyze the distribution of the heritages,including spatial distribution characteristics,spatial agglomeration,and spatial equilibrium.“Image and model information database”and“text attribute information database”is used to analyze the architectural ontology features.The conclusions are drawn as follows:1)The integral distribution has the characteristics of“cohesion”,while the 5 medium types of heritages show obvious and different directions.2)The overall pattern of spatial agglomeration is characterized by high cohesion with a single high agglomeration point as the core.The low agglomeration area shows a point-line-point pattern.3)The integral heritages and three main types of buildings differ in distribution,and the equilibrium is low.The architectural ontology analysis shows that the image information can be used as the basis for ontology characteristics analysis,architectural form and style judgment,and architectural functional space analysis.