Design Of An Intelligent Cloud Processing System For Urban Rail Traction Power Supply System

With the sustained and rapid growth of the national economy,the demand for urban rail transit is increasing,and the reliability of the traction power supply system is getting higher and higher,and the importance of intelligent operation and maintenance is becoming increasingly prominent.In this paper,an intelligent cloud processing system is designed for the Hohehot Metro Line I energy-feeding traction power supply system,and the overall architecture design of the system is described.Based on this,the hardware and software structure design of the system is proposed.Then the communication system was designed,and finally the experimental platform was built and tested.Firstly,it analyzes from the perspective of the whole system,describes the general situation of the traction power supply system of Hohhot Metro Line 1,and analyzes the demand of the intelligent cloud processing system.Based on this,the overall framework design of the intelligent cloud processing system is proposed,and the data acquisition parameters of the system are determined from the perspective of data requirements.The structural design of the hardware part of the system is described,including the system network structure and the configuration and monitoring nodes.The monitoring nodes include energy-fed device and energy meter.Secondly,the system software architecture is designed,and the software development scheme and operating environment are introduced.The software is divided into four levels from the perspective of software hierarchy,namely interface layer,business logic layer,data access layer and network communication layer.The database is located at the data access layer and serves as a tool for storing large amounts of data,which is designed in detail in this paper.The front-end interface is located at the interface layer of the interface and is the interface between the user and the intelligent cloud processing system.This paper also introduces the detailed design of the interface.The multi-threading technology and queue operations used in the software structure are designed in detail.Third,it designed the communication part of the intelligent cloud processing system.The communication part includes the RS485 communication protocol and the TCP communication protocol used for energy-fed device,the MMS communication based on the IEC61850 standard used for energy meter,the RPC(remote call)mode used when the data is uploaded to the server and and the UDP communication protocol used to collect data transferred to the Lab VIEW monitoring interface.Finally,the intelligent cloud processing system was tested and analyzed.The laboratory environment of the intelligent cloud processing system was built.And a series of functional tests such as database,interface,reactive power compensation communication and performance tests such as stability were carried out on the system.The test results show that the system is stable and the interface is good,which initially meets the design requirements.