The paper presents a new look for allocating controlled variable
series compensation in electrical transmission networks from the view points
of voltage collapse, capacity of transmission, and transmission losses, For
more realistic and accurate representation, the load is manipulated as a state
variable and voltage dependent throughout the solution process. The solution
algorithm searches for the optimal line to be compensated and ratings of series
capacitive compensation in order to increase capacity of transmission, enhance
voltage stability margin, define voltage collapse point, and finally identifjr the
most sensitive and vulnerable nodes in the network.