英文文的献0kv变电站数字化改造实例分析.doc

110 kV substations digital transformation case analysis [Abstract] This paper briefly introduces the basic concept of digital substation, Analysised substation digitization reconstruction examples based on 110 kV substations. A detailed analysised of the substation secondary equipment such as changes in operating mode. Digital Substation discussed possible options for reform, and according to the results of the operation of digital substation work out countermeasures and Recommended. [Key words] digital substation; automation; Electronic Transformer With automation and computer network traffic monitoring and protection technology, the rapid development in Past two decades has made substantial progress has been achieved for the digital substation automation system . Network laid the technical foundation for fulfilling the other hand, with the special high-voltage large-capacity .The gradual formation of large scale grid, the grid stable and reliable control of the safety information exchange ，And put forward higher requirements of the urgent. Digital Substation substation construction will be Trends . 1. the characteristics of digital substation The basic features of digital substation can be summarized as: intelligent primary equipment, secondary equipment network, automated operation and management system. Since the station relative to conventional integrated, digital substation equipment, the protective principle, the internal algorithm, logic has not fundamentally changed, but in sampling digital, networked communication medium, communication interface standardization brought changes to improve the reliability of substation automation system. Reliability of information transmission can be achieved; secondary wiring is simple; measurement accuracy; share unified information platform, reduce duplication of equipment; easy functionality expansion; management automation. 2. 110 kV Substation rehabilitation programs 1) a part of. 110kV single busbar sub-main wiring