Research on load fast control technology in large-scale supply-demand friendly interaction system

摘要

During the 13th Five-Year period, the internal and external environment of Jiangsu Grid development has changed a lot. The first provincial UHVAC ring grid is built in China. Installed capacity of clean energy has doubled and the proportion of electricity consumption achieved 45%. The increased number of electric cars is expected to millions, which will be charged in the city center. Changes in different aspects require that Jiangsu Grid can quickly response to grid emergency exceptions and coordinate user load to guarantee grid stable operation with the minimal cost when grid is broken down. Thus the large-scale supply and demand friendly interactive system is being built by Jiangsu Grid to realize the intelligence interaction and quick control of user load. This paper discusses different technologies of how large-scale supply and demand friendly interactive system can rapidly control the load of interactive user. Several aspects like load control mode, load interactive terminal of smart grid, as well as the master station are all considered in realizing load quick control.