| Based on the Electro-optical technologies, digital signal processing technology for the application of the technology of electronic transformer development, IEC61850 standard for the enactment and implementation, Ethernet communication network technology becomes mature, Development of intelligent circuit breaker technology, the substation automation entered a new stage of development, From data collection, transmission and processing of information in substation automation system with possibility of the realization of all-digital, Digital substation has gradually become the mainstream of future development of substation and trends, In electric power enterprises have gained increasing importance and application. Construction of digitized substation, information networking, communication models to achieve standardization, is a variety of devices and functions achieve shared a unified information platform. Digital substation in system reliability, affordability, ease of maintenance than conventional substation has improved significantly. Digital substation as an important node in the network, its digital transformation is an important part of smart grid construction.This paper analyzes the characteristics of digital substation, and through the digitized substation the overall structure design research, and gives the specific application of sanxiang- 220kV substation design and implementation. Thesis main job is to:1. The general framework of sanxiang- 220kV digital substation design, IEC61850 standard is given based on the substation system planning, second communication network planning, the realization of the process planning design2. Gives the equipment interoperability and secondary systems redundancy function design, etc.3. Combined sanxiang- 220kV digital substation implementation based on the actual situation, IEC61850 standard design. Analysis the new equipment and the new technology in the process of transformation of the digital substation. The problem met in the process and solution.According to the design scheme, sanxiang- 220kV substations has completed the design and construction, and in October 2009, has put into operation run in good condition. |