A Review of Total Harmonic Distortion Factors for the Measurement of Harmonic and Interharmonic Pollution in Modern Power Systems

Angel Arranz-Gimon, Angel Zorita-Lamadrid, Daniel Morinigo-Sotelo and Oscar Duque-Perez
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Angel Arranz-Gimon: Department of Electronic Technology, Universidad de Valladolid, 47011 Valladolid, Spain
Angel Zorita-Lamadrid: Research Group ADIRE, ITAP, Department of Electrical Engineering, Universidad de Valladolid, 47011 Valladolid, Spain
Daniel Morinigo-Sotelo: Research Group ADIRE, ITAP, Department of Electrical Engineering, Universidad de Valladolid, 47011 Valladolid, Spain
Oscar Duque-Perez: Research Group ADIRE, ITAP, Department of Electrical Engineering, Universidad de Valladolid, 47011 Valladolid, Spain

Energies, 2021, vol. 14, issue 20, 1-38

Abstract: Harmonic distortion is one of the disturbances that most affects the quality of the electrical system. The widespread use of power electronic systems, especially power converters, has increased harmonic and interharmonic emission in a wide range of frequencies. Therefore, there are new needs in the measurement of harmonic distortion in modern electrical systems, such as measurement in the supra-harmonic range (>2 kHz) and the measurement of interharmonics. The International Electrotechnical Commission (IEC) standards define new total harmonic distortion (THD) rates based on the concept of frequency groupings. However, the rates defined in the IEC standards have shortcomings when measuring signals such as those present in the outputs of power systems with abundant interharmonic content and presence of components in the supra-harmonic range. Therefore, in this work, a comparison is made between the different THD factors currently defined, both in the literature and in the standards, to show which of them are the most suitable for assessing harmonic and interharmonic contamination in power system signals such as those present at the output of inverters.

Keywords: power quality indices; harmonic distortion rates; harmonic analysis; interharmonics; high-frequency spectral components (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (12)

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