Structural Analysis of Large-Scale Power Systems

Table 1

Constituent elements of every hierarchical level.

Hierarchical level	Constituent elements
Main system	One main grid	𝑁 subsystems
𝑛th subsystem	One subgrid (the 𝑛th subgrid)	𝐽𝑛 sub-subsystems
𝑛𝑗th sub-subsystem	One sub-subgrid (the 𝑛𝑗th sub-subgrid)	𝐼𝑛𝑗 components
𝑛𝑗𝑖th component		𝑛𝑗𝑖th component