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1.智能电网教育部重点实验室(天津大学),天津市 300072
2.国网天津市电力公司,天津市 300160
刘洪(1979—),男,通信作者,博士,教授,主要研究方向:智能配电系统及综合能源系统的规划与运行等。E-mail:liuhong@tju.edu.cn
李其哲(1996—),男,博士研究生,主要研究方向:配电系统规划与运行。E-mail:84287738@qq.com
徐晶(1982—),男,硕士,正高级工程师,主要研究方向:配电网规划和运行优化。E-mail:jing.xu1@tj.sgcc.com.cn
收稿:2022-10-24,
修回:2023-02-20,
网络出版:2023-05-16,
纸质出版:2023-08-25
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刘洪,李其哲,徐晶等.网孔型中压配电网组网形态、核心特征与研究展望[J].电力系统自动化,2023,47(16):181-191.
LIU Hong,LI Qizhe,XU Jing,et al.Networking Morphology, Key Feature and Research Prospect of Mesh-type Medium-voltage Distribution Network[J].Automation of Electric Power Systems,2023,47(16):181-191.
刘洪,李其哲,徐晶等.网孔型中压配电网组网形态、核心特征与研究展望[J].电力系统自动化,2023,47(16):181-191. DOI: 10.7500/AEPS20221024004.
LIU Hong,LI Qizhe,XU Jing,et al.Networking Morphology, Key Feature and Research Prospect of Mesh-type Medium-voltage Distribution Network[J].Automation of Electric Power Systems,2023,47(16):181-191. DOI: 10.7500/AEPS20221024004.
当前中压配电网形态研究尚未涉及能够实现全系统潮流柔性可控的网架结构。为此,提出一种以智能软开关为核心组网装置的网孔型中压柔性互联配电网拓扑结构,并开展了其核心特征解析和规划运行等相关研究的展望。首先,分析了传统配电网、柔性配电网、蜂巢配电网的典型架构,并结合其组网装置及控制方式对比了各架构的优势与不足;其次,探讨了网孔型配电网的组网形态、控制保护策略及改造方式,提出了针对不同应用场景的矩形网孔拓扑、六边形网孔拓扑以及交直流混联网孔拓扑,并构建了由传统配电网向网孔型配电网过渡的改造方式;然后,阐述了网孔拓扑结构的核心特征,并从负荷承载能力和分布式电源消纳能力两个角度进行了定量描述,总结了网孔型配电网的结构优势;最后,对所提基于新型拓扑的规划运行研究思路进行了总结与展望。
The current research on medium-voltage distribution network morphology has not involved the flexible and controllable grid structure which can realize the power flow of the whole system . Therefore
a topology structure of mesh-type medium-voltage flexible interconnected distribution network with soft open point (SOP) as the core networking device is proposed
and its core features are analyzed and related research prospects such as planning and operation are carried out. Firstly
the typical architectures of traditional distribution network
flexible distribution network and honeycomb distribution network are analyzed
and the advantages and disadvantages of these architectures are compared according to their networking devices and control modes. Secondly
the network morphology
control and protection strategy and transformation mode of the mesh-type distribution network are discussed. The rectangular mesh topology
hexagonal mesh topology and AC-DC hybrid mesh topology for different application scenarios are proposed
and the transformation mode of the transition from the traditional distribution network to the mesh-type distribution network is constructed. Then
the key features of the mesh topology are described
and the structural advantages of the mesh-type distribution network are summarized from the perspectives of load bearing capacity and distributed generator accommodation capacity. Finally
the research idea of planning and operation based on the new topology is summarized and prospected.
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