Two-stage Optimal Dispatching of AC/DC Hybrid Active Distribution Systems Considering Network Flexibility

作     者：Yi Su Jiashen Teh 

作者机构：School of Electrical and Electronic EngineeringUniversiti Sains Malaysia(USM)14300 Nibong TebalPenangMalaysia IEEE 

出 版 物：《Journal of Modern Power Systems and Clean Energy》 (现代电力系统与清洁能源学报（英文）)

年 卷 期：2023年第11卷第1期

页      面：52-65页

核心收录：

学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学] 

基　　金：supported by Universiti Sains Malaysia through Research University Team(RUTeam)Grant Scheme(No.1001/PELECT/8580011) 

主　　题：Two-stage dispatching network flexibility renewable distributed generator second-order cone programming(SOCP) alternating current(AC)/direct current(DC)hybrid active distribution system 

摘      要：The increasing flexibility of active distribution systems(ADSs)coupled with the high penetration of renewable distributed generators(RDGs)leads to the increase of the *** is of practical significance to achieve the largest amount of RDG penetration in ADSs and maintain the optimal *** study establishes an alternating current(AC)/direct current(DC)hybrid ADS model that considers the dynamic thermal rating,soft open point,and distribution network reconfiguration(DNR).Moreover,it transforms the optimal dispatching into a second-order cone programming *** the different control time scales of dispatchable resources,the following two-stage dispatching framework is proposed.d dispatch uses hourly input data with the goal(1)The day-ahea of minimizing the grid loss and RDG *** obtains the optimal 24-hour schedule to determine the dispatching plans for DNR and the energy storage system.(2)The intraday dispatch uses 15-min input data for 1-hour rolling-plan dispatch but only executes the first 15 min of *** eliminate error between the actual operation and dispatching plan,the first 15 min is divided into three 5-min step-by-step *** goal of each step is to trace the tie-line power of the intraday rolling-plan dispatch to the greatest extent at the minimum *** measured data are used as feedback input for the rolling-plan dispatch after each step is executed.A case study shows that the comprehensive cooperative ADS model can release the line capacity,reduce losses,and improve the penetration rate of ***,the two-stage dispatching framework can handle source-load fluctuations and enhance system stability.