Firstly, the request and the feasibility of on-line pre-decision transient stability control system based EMS real-time data and how to use data have been discussed.
Secondly, the paper devotes to How to use the real-data from the EMS by the working in transformation of the novel on-line pre-decision transient stability control system.
It has 4 phases of pre-decision making, decision making, real time regulation and correction and regulation effect evaluation, carrying out a different technical line for different phases.