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The paper presents a few issues generated in low voltage distribution grids at the end user's level, by power system harmonics. The introductory section presents shortly harmonics sources, their analysis, effects and measurement methods, appealing mainly to the limits depicted in the specific standards. The following section presents two case studies of power electronics equipment drawing high distorted...
This article discusses an improved method for harmonic estimation when Asynchronous Sampling Condition (ASC) is present. The method is based on previous work on a modified DFT (Discrete Fourier Transform) using a compensation of the number of samples. This paper presents the analytical derivation of a new mathematical expression using trapezoidal integration rule and compares the performance of both...
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