Isa  Hafidz, Ardyono  Priyadi, Naoto  Yorino, 
    Transient Stability Assessment by using Critical Trajectory Method for
Smart Grid System,
    Journal of Engineering and Applied Sciences,
    Volume 14,Issue 23,
    2019,
    Pages 8662-8667,
    ISSN 1816-949x,
    jeasci.2019.8662.8667,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2019.8662.8667)
    Abstract: Transient stability assessment is needed to get an analysis of the power system stability. This critical
period occurs when generator experiences a condition of lossing synchronization and is known as critical time.
The smartgrid system, currently becoming a trend, requires dynamic optimization and realtime measurement
techniques, so that, it can improve system reliability and asset management. In this study, the researcher
modifies critical trajectory method to obtain a critical period of smartgrid system. Simulations are carried out
using the Anderson 9-bus Fouad and IEEE 30-bus test systems. The results indicate that the proposed method
can more quickly solve calculations compared to conventional methods. Some of our results are not
intuitive.
    Keywords: Transient stability assessment;critical clearing time;loss of synchronization;smart grid system;simulations;results indicate