Digital Substation Applications And Development Trends Of Intelligent Substation

In the field of substation automation, intelligent electrical development, especially in intelligent switching, optical electromechanical integration equipment such as transformer and the emergence of the continuous promotion of IEC 61850 protocol, digital substation construction projects from theory to practice stage stage.In this paper, digital substation at home and abroad of the status quo as the starting point of research and development, focuses on the electronic transformer applications in engineering practice and technology development, the IEC 61850 protocol is discussed, and the 110kv substation design typical digital for a more detailed description. In addition, the paper also briefly describes the digital substation concept, technical support and digital substation automation system features, respectively, from the process level, interval level, station level in terms of digital substation automation system structure and function of division are described, and selection and development of their network should pay attention to the issues discussed.IEC 61850 to achieve a substation secondary equipment of different manufacturers to share information between and interoperability for digital substation provides an excellent communication platform; electronic transformer can be used instead of the traditional digital signal output from the analog output, will protect the, measure, measure a more accurate count, anti-jamming capability has been greatly enhanced. On-line monitoring technology and the emergence of an intelligent switching device performance is greatly expanded, improved equipment reliability, reduce maintenance costs, reducing the secondary cable.This paper focuses on the digital substation key technology features and technology, the digital substation the application of technologies are introduced to explore, with emphasis on the IEC 61850 standard are described, and the standard in the digital substation construction in the application were analyzed. Meanwhile, also on technical points and the development of intelligent substations Looking for a brief introduction.