The essential prerequisites for secure customer service are power system stability and reliability. This work shows how to construct a robust switching control studying load changes using an invariant ellipsoid method. Furthermore, the suggested ensures when is subjected random stochastic external disturbances, functions randomly in two conditions: normal contingency. extreme (least) reliabilit...

In power system reliability assessment, the system security limits and adequacy indices depend on the set of contingencies analyzed. Consequently the final solution strategies for short term operational and long term investment planning studies also depend on the set of contingencies considered for planning. Generally, planning is done for the most critical contingency, with the assumption that...

In information security, ignorance is not bliss. It is always stated that hiding the protocols (let the other be ignorant about it) does not increase the security of organizations. However, there are cases that ignorance creates protocols. In this paper, we propose distributed contingency logic, a proper extension of contingency (ignorance) logic. Intuitively, a formula is distributed contingen...

Coordinated cyber-physical (CCP) attacks have attracted wide attention in power systems because of their potential to cause severe disturbance including cascading failures. However, as realistic operate within the N-1 security criterion, existing CCP may be part mitigated. As such, this paper analyzes impacts on vulnerability that employ constrained optimal flow (SCOPF). Specifically, a tri-lev...

The power system becomes more severe under contingency conditions. In general, the contingencies may be outage of transmission lines or generators. To identify the effect of outages on system security, the contingency analysis is one of the analytical tools. The congestion on a system must be manages using generation rescheduling and with the proper control of the compensation equipments. The t...