Performance Evaluation of Power System Network By Minimal Path Set Approach

Power system is a combination of elements which are arranged in a particular fashion. Performance of the system is indicated by its reliability which is the ability of performing its intended function. This paper proposes the minimal path set approach, which is a simple and straight forward. A simple algorithm is developed for the generation of the minimal path sets, in a monotonically increasing order of cardinality. However, as the number of minimal path sets increases the terms to be evaluated increases rapidly. Due to this the computational effort rounding off and truncation errors increases. So, to determine the ‗exact‘ reliability of a system, in this algorithm the minimal paths which give required reliability are determined. When the desired reliability is achieved, the algorithm terminates when the minimal pathsets of higher cardinality is obtained, with a considerable saving in the computational effort. The reliability of a two power systems models that consists of 5 bus and 8 bus power systems networks is presented in this paper.