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Determining Harmonic Contributions Based on Reweighted Complex Least Squares Method
Abstract:
Determining harmonic contribution quantitatively at the point of common coupling is an important task for power quality management. Outliers and influential points could have strong influences on regressors. This paper puts forward a method named reweighted complex least squares to eliminate or reduce the influences to ensure the robustness of the regression. The method can improve precision of the equivalent harmonic impedance and it can get a more reasonable result in harmonic contribution determination than previous methods. A case study based on the IEEE 14-bus test system was conducted, which shows the validity of the proposed method.
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2660-2666
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Online since:
October 2013
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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