For example,the CS & R(contingency screening and ranking) methods for low voltage and voltage collapse are applied to quickly detect the non-zero risk contingency,and the second order loss sensitivity index is adopted to take the place of CPF(continuation power flow) to determine the expected value of the loadability.

Analysis of second -order indices and their characteristics led to a new second -order index based on loss sensitivity.

system loss sensitivity, for estimating voltage collapse proximity is introduced in this paper.

According to several typical operation modes of Fujian power system and using the sensitivity index and margin index of voltage stability,the static voltage stability is analyzed and the system voltage stability after n 1 check is also discussed.

The determination of critical irrigation time may be accomplished by using a sensitivity index ( λ i ) that is the se.

Sensitivity method is a steady-state voltage stability analysis method based on power flow equation,and it analyses system stability by the system variable sensitivity index to the disturbance under conditions that the system is disturbed.