文章摘要
许志荣,杨苹,刘泽健,等.区域自治型单相/三相多微网多时间尺度递阶控制[J].电力系统自动化,2017,41(10):82-91. DOI: 10.7500/AEPS20160803008.
XU Zhirong,YANG Ping,LIU Zejian, et al.Hierarchical Control on Multi-time Scale for Regional Autonomy Multi-microgrid with Single-phase/Three-phase Architecture[J].Automation of Electric Power Systems,2017,41(10):82-91. DOI: 10.7500/AEPS20160803008.
区域自治型单相/三相多微网多时间尺度递阶控制
Hierarchical Control on Multi-time Scale for Regional Autonomy Multi-microgrid with Single-phase/Three-phase Architecture
DOI:10.7500/AEPS20160803008
关键词: 单相/三相(单三相)  微网(微电网)  稳定裕度  多时间尺度  递阶控制
KeyWords: single-phase/three-phase  microgrid  stability margin  multi-time scale  hierarchical control
上网日期:2017-04-05
基金项目:国家科技支撑计划资助项目(2015BAA06B02)
作者单位E-mail
许志荣 华南理工大学电力学院, 广东省广州市 510640 407849739@163.com 
杨苹 广东省绿色能源技术重点实验室(华南理工大学), 广东省广州市 511458  
刘泽健 华南理工大学电力学院, 广东省广州市 510640  
彭嘉俊 华南理工大学电力学院, 广东省广州市 510640  
曾智基 华南理工大学电力学院, 广东省广州市 510640  
赵卓立 风电控制与并网技术国家地方工程实验室(华南理工大学), 广东省广州市 511458  
摘要:
      随着微网大规模推广应用,地域上较为相近的多类相序微网可互联形成单相/三相混联多微网系统。针对脱离配电网情况下所形成的区域自治多微网,提出一种多时间尺度集散式递阶控制策略,包括秒级分散式实时控制、分钟级集中式协调和小时级动态孤岛切换。其中,分散式实时控制基于各子微网自身稳定运行裕度实现源—荷—储功率调节,平抑光伏和负荷功率波动的同时跟踪联络线功率;集中式协调考虑分散式控制的弃光切荷量以及三相不平衡度约束,基于多目标混合整数规划实现源—荷—储集中式优化进行全局功率分配;动态孤岛切换通过组合互联方案决策实现区域多微网整体资源配置最优。经仿真实例验证,所提策略可实现单相/三相多微网多时间尺度递阶控制,实现应对源—荷波动的源—荷—储协调控制,有利于多微网离网的安全高效运行。
Abstract:
      With the large-scale application of microgrid, microgrids with single-phase/three-phase architecture geographically closer to one another can be interconnected to multi-microgrid systems with multi-phase architecture. For the regional autonomous multi-microgrid off the power distribution network, this paper proposes a distributed-coordinated hierarchical control strategy of multi-time scale, including second-level distributed real-time control, minute-level centralized coordinated control and hour-level dynamic island switching control. Distributed real-time control achieves power regulation with sources, loads and storages based on each microgrid's stability margin. Considering the three-phase unbalance factor as a constraint, centralized coordinated control achieves regulation of power with sources, loads and storages based on multi-objective mixed integer programming. Dynamic island switching realizes optimal resources allocation for the whole regional multi-microgrid through combined decision making. It is shown by simulation results that the proposed strategy can realize hierarchical control on multi-time scale for the regional autonomous multi-microgrid with single-phase/three-phase architecture and the coordinated control of the fluctuation of sources, loads and storages to help with the safe and efficient operation of the multi-microgrid off the distribution network. This work is supported by National Key Technologies R&D Program(No. 2015BAA06B02).
查看全文(Free!)   查看附录  查看附录  查看附录   查看/发表评论  下载PDF阅读器