Study On Main Control Device Of Intelligent Power Distribution Monitoring System

In recent years, with the development of economy and modern industrialtechnology, all trades and professions are putting more and higher requests todistribution system in terms of reliability, Intellectualization and networking. Lowvoltage distribution system, which contacts with users most closely, impacts mostdirectly on users. So, the research and progress of intelligent electric control devices hasimportant significance to ensure efficient, high-quality and reliable power supply.According to the characteristics of intelligent distribution system, with analysis onsituations and problems in distribution system at home and abroad, this thesis prepares amaster unit, which will be used for monitoring in intelligent distribution system. Itcombines high performance ARM11processor (S3C6410) with embedded Linuxoperating system, embedded database, field bus and Ethernet technology, to realizepower distribution monitoring through the master unit and intelligent field devices. Itmainly includes the aspects in intelligent distribution system as: structure analysis andscheme design, technology and protocol, hardware and software design of the masterunit.The main control device supports more communication protocol, achieving bettercommunication ability. In order to realize the function of remote monitoring, it adoptsCGI technology and embedded Web server, and uses C language and HTML languagefor programming. With power on operation test to the prototype device, it shows thatthe main control device could well connect with slave computers, and be competent fordata acquisition and monitoring and alarming in the low voltage distribution system, allrespects reaching the design requirements.This paper is summarized on the basis of the cooperation projects withShijiazhuang Hongrui Automation System Co., Ltd.