A Fast Active Islanding Strategy for Large Power Grid Considering Wind Farm Integration

被引：0
|
作者：
Tang F. [1 ]
Liu Y. [1 ]
Shi H. [2 ]
Zou H. [3 ]
Zhou F. [1 ]
机构：
[1] School of Electrical Engineering and Automation, Wuhan University, Wuhan
[2] China Electric Power Research Institute, Beijing
[3] State Grid Zhejiang Electric Power Company Taizhou Power Supply Company, Taizhou
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2019年 / 34卷 / 10期
关键词：
Active islanding; Generator coherency identification; Optimal islanding sections search; The improved k-means algorithm; Wind farm integration;
D O I：
10.19595/j.cnki.1000-6753.tces.181296
中图分类号：
学科分类号：
摘要：
Aiming at the problem of fast active islanding of power system with high wind permeability, a two-stages fast active islanding strategy for large scale power grid under high wind power penetration is proposed in this paper. In the first stage, wind power is equivalent by modifying the shrink admittance matrix of the system. The power angle Laplacian matrix is modified online according to the offline calculation results of the coupling degree of the generators, and then the current coherency identification results are obtained online. In the second stage, a constrained spectral clustering algorithm is, based on graph theory, applied to transform the problem of islanding sections searching to the generalized eigenvalue problem, and the improved k-means algorithm is applied to get the real-time optimal islanding sections quickly. Finally, the correctness, effectiveness and rapidity of the proposed method are verified by the simulation in the IEEE 118-bus system. © 2019, Electrical Technology Press Co. Ltd. All right reserved.
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页码：2092 / 2101
页数：9
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