中低压柔性直流配电系统稳定性分析模型与机理研究综述  

Review of stability analysis model and mechanism research of medium-and low-voltage flexible DC distribution system

作　　者：李鹏飞[1] 李霞林[1] 王成山[1] 郭力[1] 彭克[2] 张野 王智[1] LI Pengfei;LI Xialin;WANG Chengshan;GUO Li;PENG Ke;ZHANG Ye;WANG Zhi(College of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255000,China;Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Tianjin 300072,China;State Key Laboratory of HVDC,Electric Power Research Institute of China Southern Power Grid,Guangzhou 510663,China)

机构地区：[1]天津大学智能电网教育部重点实验室,天津300072 [2]山东理工大学电气与电子工程学院,山东淄博255000 [3]南方电网科学研究院有限责任公司直流输电技术国家重点实验室,广东广州510663

出　　处：《电力自动化设备》2021年第5期3-21,共19页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51977142);国家重点研发计划资助项目(2020YFB1506803);直流输电技术国家重点实验室开放基金项目(SKLHVDC-2020-KF-18)。

摘　　要：中低压柔性直流配电系统可高效接纳利用光伏、风电等新能源和储能等直流型电源,为电动汽车、数据中心及LED照明等直流型负荷提供高效可靠供电,因此得到广泛关注。然而由于系统内电力电子设备特性各异,直流网络拓扑复杂,控制策略多样,运行状态变化频繁且变化范围较大,使得直流配电网存在多时间尺度小扰动和大扰动稳定性问题。为此,首先对直流配电系统的拓扑类型以及典型控制策略进行了梳理,然后分别对直流配电系统的典型小扰动和大扰动稳定性研究现状进行了详细的综述,最后对直流配电系统稳定性研究进行了总结和展望。Medium-and low-voltage flexible DC distribution system has received great attention because it can efficiently accept and utilize renewable energy such as photovoltaic,wind power,etc.,and DC sources such as energy storage,etc.,and provide efficient and reliable power supply for DC loads such as electric vehicles,data centers,LED lighting,etc.However,due to the various characteristics of power electronic equipment,complex topologies of DC network,diverse control strategies and frequent and wide-range variation of operating states,DC distribution systems have problems of small-disturbance and large-disturbance stability in multi-time scales.For that,the topology types and typical control strategies of DC distribution system are described firstly.Then,the research status of typical small-disturbance and large-disturbance stability of DC distribution system is reviewed respectively in detail.Finally,the researches of DC distribution system stability are summarized and prospected.

关 键 词：中低压柔性直流配电系统 小扰动稳定 大扰动稳定 稳定性分析 模型 

分 类 号：TM727[电气工程—电力系统及自动化] TM712