MCDM approach for the integrated assessment of vulnerability and reliability of power systems

Abstract

Fault analysis of modern power systems cannot be only addressed on classical reliability techniques but also considering the impact of cascading failures. This paper proposes an original integrated approach for the risk management of a power system subject to random contingencies by using vulnerability and reliability quantitative measures. Five different systems based on the IEEE-RTS have been studied from the vulnerability and reliability perspectives. According to the calculation carried out and the Multi-Criteria Decision Making (MCDM) method applied to better consider the integration of both concepts, the vulnerability and reliability perspectives are complementary viewpoints that can help to design a more robust critical infrastructure.

Multi-period vulnerability analysis of power grids under multiple outages: An AC-based bilevel optimization approach

“…Analyzing the loss of two elements consecutively or N-1-1 contingency analysis is another example of this category [10][11][12]. It should be noted that the reliability concept that defines the ability of the electric power system to meet the demand with continuity and an acceptable level of quality, comes under the low-order contingencies [13].…”