An improved algorithm for power system reliability sensitivity analysis

The power system reliability sensitivity analysis can recognize weak parts of the system. It is significant for system reliability assessment and enhancement. Against deficiencies in conventional reliability sensitivity analysis, this paper proposes an improved method by analyzing graphical representations of sensitivity and practical engineering requirements. This method meets real needs better and keeps the calculating errors of reliability indices from impacting results of component sensitivity assessment effectively. What´s more, cooperating with the generalized power network reliability analysis, the suggested method can estimate and compare the sensitivity of commonly-used primary equipments in power system directly, satisfying the needs for maintenance strategy better.