电网技术2023，Vol.47Issue(12)：5005-5014,10.DOI:10.13335/j.1000-3673.pst.2022.2043
基于背靠背变流器互联的多微网主动配电系统有功-无功鲁棒协同优化运行策略
Active-reactive Power Robust Collaborative Optimization Strategy for Active Distribution System With Multi-microgrids Based on Back-to-back Converter Interconnection
摘要
Abstract
To solve the scheduling problems caused by the uncertainties of microgrids(MGs)and the power factor limitation of grid-connected MGs,an active-reactive power robust collaborative operation strategy considering the power factor constraint and uncertainties is proposed for the active distribution system with multi-microgrids.Firstly,considering the influence of grid-connected MG power factor constraint,the active and reactive power regulation characteristics of a microgrid based on the back-to-back converter are analyzed.Secondly,considering the MG uncertainties and the MG power factor constraint,an active-reactive power robust collaborative optimization operation model with a min-max-min structure is proposed.This model is transformed into a mixed integer second-order cone programming problem by the second-order cone relaxation method.Then,to solve the problem that the max-min problem can't be solved directly by using the KKT condition to dual because of 0-1 integer variables,a solving method is proposed based on the two-level column and constraint generation algorithm,and an acceleration strategy is given to ensure the rapid solution of the algorithm.Finally,the effectiveness and superiority of the proposed strategy are verified based on the modified IEEE-33 bus system with 3 MGs.Simulation results demonstrate that the proposed strategy can effectively ensure the MG power factors within the required range and minimize the system operation cost by coordinating the active and reactive power output of the active distribution system in the"worst"operation scenario.关键词
微电网/主动配电网/多微网主动配电系统/有功-无功协同优化/鲁棒优化/功率因数约束Key words
microgrid/active distribution network/active distribution system with multi-microgrids/active-reactive power collaborative optimization/robust optimization/power factor constraint分类
信息技术与安全科学引用本文复制引用
郑舜玮,廖凯,杨健维,张怀远,何正友..基于背靠背变流器互联的多微网主动配电系统有功-无功鲁棒协同优化运行策略[J].电网技术,2023,47(12):5005-5014,10.基金项目
国家重点研发计划项目(2022YFB2603100) （2022YFB2603100）
四川省自然科学基金项目(2022NSFSC0271).Project Supported by National Key Research and Development Program of China(No.2022YFB2603100)and Natural Science Foundation of Sichuan Province(No.2022NSFSC0271). （2022NSFSC0271）
