基于双矩小波变换的电力系统谐波分析与检测

Journal of Residuals Science & Technology Pub Date : 2016-01-01 DOI:10.1504/ijris.2017.090048

Kangyou Liang, Ling-ling Yuan, Yuhang Tan

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引用次数: 0

摘要

具有谐波补偿功能的单相DG机组不平衡安装对三相三线制公共电网的影响表明，不平衡安装会增加电网三相电流的风险。为了克服这一问题，提出了平衡三频谐波函数，以避免三相电网电流的增加。此外，与传统方法相比，该方法还能够降低谐波电流补偿的额定功率。为了验证所提出方法的有效性，在实验中验证了平衡和不平衡条件，实验电路是基于实际三相三线制系统的简化系统。为了避免谐波电流的增加，提出了一种平衡的三次谐波抑制方法。最后，通过实验验证了所提算法的性能。

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Harmonic Analysis and Detection of Power System based on Double Moment Wavelet Transform

The influence of unbalanced installation of single-phase DG unit with harmonic compensation function in three-phase and three-wire public power grid shows that there will be risk for the unbalanced installation to increase the three-phase current of the power grid. In order to overcome this problem, balanced triple-frequency harmonic function is proposed for the purpose of avoiding the increase in three-phase power grid current. In addition, compared with the traditional method, such method is also capable of reducing the rated power of harmonic current compensation. In order to verify the effectiveness of the method proposed, the balance and unbalanced conditions are verified in experiment and the experimental circuit is a simplified system based on actual three-phase three-wire system. In order to avoid the increase in the harmonic current, a balanced third harmonic suppression method is proposed. Finally, performance of the algorithm proposed has been verified through experiment.

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来源期刊

Journal of Residuals Science & Technology 环境科学-工程：环境

自引率

0.00%

发文量

审稿时长

>36 weeks

期刊介绍： The international Journal of Residuals Science & Technology (JRST) is a blind-refereed quarterly devoted to conscientious analysis and commentary regarding significant environmental sciences-oriented research and technical management of residuals in the environment. The journal provides a forum for scientific investigations addressing contamination within environmental media of air, water, soil, and biota and also offers studies exploring source, fate, transport, and ecological effects of environmental contamination.