Study On Economic Evaluation Of Smart Substation’s Pilot-Construction Project

In the past20years, although great changes have taken place in information and communication technology, the traditional power grid structure does not keep up with the pace of technological change. The users put forward higher requirements to the electric power supply. National security, environmental protection and other policies are all proposing a higher standard to the construction and management of power grid.Smart grid is power grid’s intellectualization, it is built on the basis of the integration of two-way communication and high-speed network. Through the use of advanced sensing and measuring technology, advanced equipment technology, the advanced control method, and the application of advanced technology of decision support system, it can realize the power grid reliability, security, economic, efficient, environmental friendly and safety in use goals. The main characteristics of smart grid include self-healing, incentives and include user, against attacks, provide meet the electric energy quality of user needs in the21st century, allow all sorts of different power generation forms of access, start the electric power market and asset optimization run efficiently.Based on the research status of smart grid at home and abroad, from the perspective of Shangzhi smart grid pilot project, firstly the theory related to the smart grid are reviewed, details of the smart grid meaning, advantages and characteristics, followed by the introduction of Shangzhi smart grid pilot project, analysis of the current situation of Shangzhi grid and construction of the pilot backgrounds, and the construction of meaning, goal, scale, the idea and the construction of smart grid construction principle, determine the expected target Shangzhi smart grid pilot construction; at the same time learning the smart grid construction basis, determine the construction scale of Shangzhi smart grid pilot. Finally, the Shangzhi smart grid pilot construction are analyzed and anticipated benefit, Shangzhi smart grid pilot construction is divided into four categories:0.4kV smart distribution network construction, lOkV line,10kV line construction of smart switch smart compensation of wattless power construction, construction of power consumption information collection. by using contrast method, through the comparison of the line conditions, the pilot construction before and after the construction of power supply, power quality, some conditions and data, summarizes the construction of smart grid to solve the problem of automation, information interaction, low level line, at the same time, Shangzhi smart grid pilot construction has brought enormous economic benefits and social benefits to us.