Multi-Dimensional Reliability Assessment of Distribution Network Under Renewable Energy Installation and Load Installation

Abstract

This paper proposes a novel multi-dimensional reliability evaluation method for distribution network under renewable energy installation and load installation, considering fault reconfiguration and multiple constraints. Firstly, the related output models of distribution network are presented. Secondly, a post-fault load restoration model of the distribution network by considering fault reconfiguration and multiple constraints under distributed generation integration is established in our study. Subsequently, the reliability evaluation indices for the distribution network, including system average interruption duration indicator, customer average interruption duration indicator, system average interruption frequency indicator, and average service availability indicator, are introduced. And the process of reliability evaluation founded on the sequential Monte Carlo simulation is also explained. Finally, simulations were performed on an improved IEEE 69-node distribution system to verify the proposed method, and the reliability of the distribution network from the distributed generation installation, types of distributed generation installation, distributed generation installation capacity, and new load installation is discussed in-depth.