多源配电网主动孤岛恢复策略与动态组网潮流分析方法
CSTR:
作者:
作者单位:

(1.长沙理工大学电气与信息工程学院,湖南 长沙 410114;2.珠海博威电气股份有限公司,广东 珠海 519085;3.国网河南省电力公司经济技术研究院,河南 郑州 450052)

通讯作者:

陈 春(1987—),男,工学博士,教授,主要从事智能配电网规划、配电网故障特性分析与自愈控制等相关研究;

中图分类号:

TM863

基金项目:

国家自然科学基金(52007009);湖南省自然科学基金(2020JJ5574);湖南省教育厅优秀青年项目(19B003)


Intentional islanding recovery strategy and dynamic network power flow analysis for distribution networks with multi‑source
Author:
Affiliation:

(1.School of Electrical & Information Engineering, Changsha University of Science & Technology, Changsha 410114, China;2.Zhuhai Powint Electric Co., Ltd., Zhuhai 519085, China;3.Economic and Technological Research Institute,State Grid Henan Electric Power Company, Zhengzhou 450052, China)

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    摘要:

    多源配电网主动孤岛运行是极端条件下大范围电网故障时保障关键负荷供电、提升配电系统安全和可靠性的重要措施。为此,根据不同类型分布式电源及重要负荷的分布,以最小路径权值和最大重要负荷恢复量为目标,建立大停电初期的配电网孤岛黑启动方案的最优化模型,以保证关键负荷在尽可能短的时间内恢复。充分发挥BFGS信赖域算法收敛速度快、计算精度高的优点,提出多源配网主动孤岛黑启动组网过程动态潮流分析方法,利用动态潮流的频率与节点电压结果判断黑启动方案的可行性,实现多源配电网黑启动序列的有效性评估及方案优化。以改进的IEEE 33节点配电系统作为仿真算例,结果可以验证所提方法的有效性和创新性。

    Abstract:

    Intentional islanding operation of distribution networks with multi?source is an important measure to ensure the power supply of critical loads and improve the safety and reliability of the distribution system when a large?scale grid fails under extreme conditions. Therefore, according to the distribution of different types of distributed power supply and important load, with the goal of minimum path weight and maximum recovery of important load, the optimization model of the distribution network island black start scheme at the early stage of major power failure is established to ensure the recovery of critical load in the shortest possible time. The advantages of fast convergence speed and high calculation accuracy of the BFGS trust region algorithm are fully used to propose a dynamic power flow analysis method for a self?organizing restoration process in intentional islanded distribution networks with multi?source. Then, the dynamic power flow's frequency and node voltage results are used to judge the feasibility of the black start scheme. The improved IEEE 33?node power distribution system is taken as a simulation example to verify the effectiveness and innovation of the proposed method.

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谭清波,陈 春,曹一家,等.多源配电网主动孤岛恢复策略与动态组网潮流分析方法[J].电力科学与技术学报,2023,38(6):142-151.
TAN Qingbo, CHEN Chun, CAO Yijia, et al. Intentional islanding recovery strategy and dynamic network power flow analysis for distribution networks with multi‑source[J]. Journal of Electric Power Science and Technology,2023,38(6):142-151.

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