Research on coordinated control measures to enhance the stability and transmission capacity of electromagnetic loop network

With the implement of unique high voltage transmission lines, the original 500kV and 220kV network will electromagnetically couple with the newly built 1000kV power grid. Multiple electromagnetic loop network could change operating characteristics of power grid, particularly the stability and transmission capacity problems of power grid. Operating problems that happen in 1000kV/500kV/220kV electromagnetic loop network are classified and discussed in this paper. Coordinated control measures are also researched based in this paper on the summary of all kinds of control measures. The proposed coordinated measures are applied and tested in a practical simulation case. Analysis results show that coordinated control measures has better economy and control effects to enhance stability and transmission capacity of electromagnetic loop network comparing with single control measure.