Evaluation and Comparison of Some Methods for Calculating Generating System Reliability

A number of methods of calculating reliability figures of merit for generating systems exist, but to date absolute comparisons of the accuracy of the various methods do not seem to have been made. Comparisons of some of these methods are made here, using a typical power system as a test system and results from a digital computer simulation as the basis for comparison. The paper also presents a modified calculation technique that is easy to apply and whose results closely approximate results obtained by system simulation.