Integrated reliability centered distribution system planning - Cable routing and switch placement

作     者：Zarkovic, Sanja Duvnjak Shayesteh, Ebrahim Hilber, Patrik 

作者机构：KTH Royal Inst Technol Sch Elect Engn & Comp Sci Dept Electromagnet Engn Stockholm Sweden Swedish Natl Grid Stockholm Sweden 

出 版 物：《ENERGY REPORTS》 (Energy Rep.)

年 卷 期：2021年第7卷

页      面：3099-3115页

核心收录：

基　　金：SweGRIDS  Swedish Centre for Smart Grids and Energy Storage 

主　　题：Cable routing Distribution system planning Mixed-integer programming Network configuration Optimal switch placement Power system reliability Sectionalizers Tie switches 

摘      要：Distribution utilities aim to operate and plan their network in a secure and economical way. The prime focus of this work is to assist utilities by developing a new integrated approach which considers the impacts of system reliability in distribution system planning (DSP). This approach merges different problems together and solves them in a two-stage process, as follows: 1. cable routing and optimal location and number of switching devices (circuit breakers and reclosers);2. optimal location and number of tie switches. Moreover, the possibility of installing different cable options, with different prices and capacities, is included. The optimization algorithm is designed using mixed-integer programming (MIP). The developed algorithm analytically evaluates relationships between different components in the system and dynamically updates reliability indices, failure rate and restoration time, of every node in the system. This approach has been tested on two distribution systems. Despite the complexity and the exhaustiveness of the problem, MIP converges and provides the optimal solution for every studied scenario. The results show that an integrated approach enables utilities to obtain more comprehensive solutions. Moreover, by understanding the impact of parameter variation enables utilities to categorize their priorities in the decision making process and optimally invest in distribution network with respect to reliability. (C) 2021 The Authors. Published by Elsevier Ltd.