Reliability assessment in electrical power systems: theWeibull-Markov stochastic model

摘要

The field of power system reliability is dominated by the use ofhomogeneous Markov models. The negative exponential distributions inthese models, however, are unrealistic in the case of repair orswitching times. The use of homogeneous Markov models is often justifiedby arguing that the use of other models makes it impossible to performanalytical or nonsequential calculations. A special kind of semi-Markovmodel is proposed which uses Weibull-distributions for all stochasticdurations. The proposed model encloses the homogeneous Markov model as asubset, enables bell-shaped duration distributions and may be used invarious analytical and nonsequential reliability assessmentmethods