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A New Method for Interharmonic Identification
2009 Asia-Pacific Power and Energy Engineering Conference, 2009A new method based on improved multiple signal classification (MUSIC) algorithm and independent component analysis (ICA) method is applied in this paper. In contrast with the original MUSIC algorithm, the proposed version can give good performance at lower signal/noise ratio (SNR).
Yu Ji, Yunlian Sun
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Harmonic and interharmonic distortion modeling in multiconverter systems
IEEE Transactions on Power Delivery, 1995The problem of modeling multi-power converter systems in presence of harmonic and interharmonic distortion is considered. Specifically, current source rectifiers are considered as distortion sources, some supplying DC motors and the remaining supplying inverters feeding AC machines.
R. CARBONE +3 more
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On the interharmonic components generated by adjustable speed drives
10th International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.02EX630), 2004The interharmonic generation process is addressed with reference to high power adjustable speed drives based on double stage conversion systems using line commutated or pulse width modulated inverters. Reference is made to ideal supply conditions. Formulas to forecast the interharmonic frequencies due to the interaction between the rectifier and the ...
F. DE ROSA +3 more
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A selfâtuning harmonic and interharmonic processing technique
European Transactions on Electrical Power, 2002AbstractMeasurement and analysis experiences have highlighted great difficulties in detecting and measuring interharmonics due to their small amplitudes and their consequent vulnerability to spectral leakage of harmonic tones. A new approach that has a general validity and results fully compatible with the latest IEC standard draft is presented.
GALLO, Daniele +2 more
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The estimation of interharmonics by group frequencies
2004 IEEE Region 10 Conference TENCON 2004., 2004In this paper, an innovative concept, group frequency (GF), is proposed to facilitate the analysis of power system interharmonics as well as conventional integer harmonics. The concept is applied in the analysis of load currents of integral cycle controllers (ICCs) and other controlled power applications.
null Yong-Nong Chang +3 more
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Interharmonics in power systems
2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262), 2001IEC-61000-2-1 defines interharmonic as follows: between the harmonics of the power frequency voltage and current, further frequencies can be observed which are not an integer of the fundamental. They can appear as discrete frequencies or as a wideband spectrum.
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2001
Harmonics occur due to equipment with non-linear characteristics such as transformers and fluorescent lamps, and today are principally due to power electronics components such as rectifiers, triacs or thyristors. In this regard, particular attention should be paid to the use of rectifiers with capacitor smoothing which are used extensively in ...
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Harmonics occur due to equipment with non-linear characteristics such as transformers and fluorescent lamps, and today are principally due to power electronics components such as rectifiers, triacs or thyristors. In this regard, particular attention should be paid to the use of rectifiers with capacitor smoothing which are used extensively in ...
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On the Effects of Unbalances, Harmonics and Interharmonics on PLL Systems
IEEE Transactions on Instrumentation and Measurement, 2013The effects of unbalances, harmonics, and interharmonics on PLL systems are analyzed. After a brief review of some typical schemes for three-phase and single-phase PLLs, an analytical assessment of the phase angle and frequency errors for PLLs in the presence of disturbances is performed to obtain simple analytical formulas.
Feola L +2 more
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Interharmonic analysis and mitigation in adjustable speed drives
IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014This paper presents the theoretical background and studies on the supply side current interharmonics in a double-stage Adjustable Speed Drive (ASD), when they are initiated by motor current imbalance. Some useful approaches are then proposed to compensate for these interharmonic currents in partially and/or fully controlled ASD, resulting in ...
Hamid Soltani +3 more
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Double stage harmonic and interharmonic processing technique
2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134), 2002Measurement and analysis experiences have shown great difficulties in interharmonic detection and measurement due to their small amplitudes and their consequent vulnerability from harmonics spectral leakage. A new approach that has a general validity and results fully compatible with the IEC standard is presented.
GALLO, Daniele +2 more
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