Research And Application Of Intelligent Substation Reconstruction And Big Data Monitoring Technology In Liaoyang District

With the rapid development of economy and the innovation of science and technology,the people's demand for electricity is increasing day by day,and it brings vigorous development of power grid engineering in our country,accompanied by distributed energy access and with the market-oriented operation of electric power enterprises and the construction of UHV power grid projects in succession,the demand for security of our power grid is also gradually increasing.On this basis,smart grids emerge coming as required,and it gradually becomes the direction of the final development of electric power enterprises.As an important basic technology in smart grid,intelligent substation has become a major research topic in the worldThe Liaoyang Substation studied in this paper is a complete 220kV intelligent substation,in which the intelligent terminal and the combined unit are used to complete the intelligent primary equipment in the Liaoyang Intelligent Substation.This study is to take the Liaoyang Intelligent Substation Project as the main research thread of the paper.In the course of the research,combined the conclusions of my practical work experience.In this paper,the key technologies of intelligent substation and the key points of operation and maintenance are summarized,and the application process of intelligent substation in Anshan substation is introduced.The main findings are as follows1.This paper introduces the general construction system of intelligent substation and its network construction mode,and analyzes the characteristics of primary equipment and secondary equipment and the corresponding practical application law in detail,taking Anshan substation process layer arrangement production as the breakthrough point.In this process,the comparison between intelligent substation and conventional station is inserted2.This paper introduces the basic frame of big data detection platform design in intelligent substation and the introduction of NJLS model3.According to the actual operation mode and regional characteristics of Liaoyang substation,the expansion scheme of 110kV protection without modification is put forward,and the scheme is implemented successfully.According to the operation mode and regional characteristics of Liaoyang substation,the implementation scheme of replacing intelligent terminal without power outage of 220kV is formulated and successfully implementedCombined with the equipment monitoring practice in Liaoyang substation,big data monitoring system experiment was introduced to compare the efficiency of NJLS model and star model in data storage and rewinding operation,as well as the operating rate of the two models in Hive and Impala...