Application Research On 500 KV Intelligent Integrated Substation Automation

Nowadays, the rise of China smart grid has aroused attention of the world. Our country has enter the era of all-round construction of the smart grid. Integrated automation is the core content of intelligent power grid, smart grid, the future development of inevitable direction. As the core and key technologies of a 500kV smart substation, since the system of the digital application research on construction of smart grid is of great significance.500kV conventional substation and 500kV has been introduced in this paper the definition of intelligent substation integrated automation, composition, function and application characteristics of intelligent analysis of 500kV station and 500kV station since the system advantages and disadvantages in practical work, to study the feasibility of intelligent integrated automation system.This theses through to 500kV station integrated automation system monitoring and control system model of the principle and key technology analysis and the application of intelligent station monitoring system based on IEC61850 protocol research, through the 500kV interval in intelligent station integrated automation system layer and stands accused of the research of communication interface and protocol, to realize the seamless communication total station; On the basis of the principle and characteristics of electronic current transformer analysis, through the analysis of application of 500kV station integrated automation system, the realization of electronic current transformer to replace traditional electromagnetic transformer applied in 500kV smart stand; Based on the theory of ac sampling principle of analysis, discusses the choice of ac sampling algorithm, combining with unit synchronous sampling technology research in the application of 500kV smart station integrated automation, based on the engineering case of empirical research has solved the key technical problems in the application of synchronous sampling technology; The working principle of the intelligent terminal, function, operation characteristics, the intelligent terminals in the 500kV station integrated automation system of the engineering application, based on the typical model design of intelligent terminal ark, can solve the problem of related defects, realize the stable operation of the intelligent components.This theses through to 500kV smart station integrated automation application research, solve the 500kV smart stand practical problems encountered in the system, to improve intelligent technology, ensure the reliable operation of the smart grid.