Title :
Statistical characterization of DFT-based waveform distortion evaluations in power systems
Author_Institution :
Politec. di Milano, Milan, Italy
Abstract :
The paper deals with the statistical characterization of the so-called r.m.s. value of a harmonic subgroup defined in the Standard IEC 61000-4-7 regarding harmonics and interharmonics measurements and instrumentation for power supply systems and equipment connected thereto. A complete statistical characterization is provided in terms of probability density function, cumulative distribution function, and statistical moments by exploiting the properties of noise propagation through the discrete Fourier transform.
Keywords :
discrete Fourier transforms; power supply quality; power system harmonics; power system measurement; probability; DFT; Standard IEC 61000-4-7; cumulative distribution function; discrete Fourier transform; harmonic subgroup; interharmonics measurements; noise propagation; power supply systems; power systems; probability density function; statistical moments; waveform distortion evaluations; Distortion measurement; IEC standards; Instruments; Measurement standards; Power measurement; Power supplies; Power system harmonics; Power system measurements; Power systems; Probability density function; Discrete Fourier transforms; harmonic distortion; noise; power quality; uncertainty;
Conference_Titel :
Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 2009. IDAACS 2009. IEEE International Workshop on
Conference_Location :
Rende
Print_ISBN :
978-1-4244-4901-9
Electronic_ISBN :
978-1-4244-4882-1
DOI :
10.1109/IDAACS.2009.5342934
