未知谐波阻抗条件下的多谐波源定位

2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA) Pub Date : 2022-10-01 DOI:10.1109/WCEEA56458.2022.00048

Zhun Hu, Lei Zha, Chaohao Wang, Chuan Wang, Zhiquan Ma, Hongru Zheng, Quan Zhou

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引用次数: 0

摘要

针对实际电网中谐波阻抗难以获取的情况，提出了一种未知谐波阻抗下的谐波源定位方法。该方法首先对测量样本的自相关矩阵进行特征值分解，得到谐波阻抗矩阵，然后对各谐波源电流信号进行估计。最后，通过互信息识别谐波源的准确位置。基于ieee9总线测试系统验证了该方法的有效性。

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Locating Multiple Harmonic Sources under the Condition of Unknown Harmonic Impedances

In allusion to the condition that the harmonic impedance is difficult to obtain in actual power grid, a harmonic source location method under unknown harmonic impedance is proposed. In the proposed methodology, the harmonic impedance matrix is obtained by the eigenvalue decomposition of the autocorrelation matrix of the measured samples, and then the signal of each harmonic source current is estimated. Finally, the exact locations of the harmonic sources are identified through mutual information. The effectiveness of the proposed method is verified based on the IEEE 9-bus test system.

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来源期刊

2022 International Conference on Wireless Communications, Electrical Engineering and Automation (WCEEA)

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