A Pseudo-Analytical Mix Sampling Strategy for Reliability Assessment of Power Girds

The reliability of power grids has always received high level concerns, since a high quality of power supply is generally required in both daily life and industrial applications, thus an appropriate reliability assessment is instructive for the design and troubleshooting of power grids. In this work, to improve the sampling efficiency of assessing processes, a pseudo-analytical mix sampling strategy is proposed for reliability assessment of power grids, which is mainly based on the ideas of average-and-scattered sampling and total probability formula method. The proposed scheme is evaluated in both IEEE reliability test system (RTS) and modified IEEE reliability test system (MRTS). The superiority of the proposed scheme is confirmed by comparison, since the results of which indicate that the sampling times can be reduced by more than 3/4 than those obtained by traditional ways.