A Practical Preventive Control Method for Transient Stability Based on Time Domain Simulation

A time domain simulation based preventive control method is proposed in this paper. To achieve excellent practicality of the proposed method, the author focused on improving economy of the resulted generation rescheduling, unlimited model application and calculation efficiency of the stability analysis. A new technique is proposed to improve accuracy of Transient Energy Margin estimation from time domain simulation results. A sensitivity analysis technique is employed for stability limit determination of generating power from TEM. Calculation efficiency is also improved by proposed contingency selection. The effectiveness of the proposed method is verified through a calculation example with IEEJ 10 machine power system model.