Results 111 to 120 of about 215 (160)
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IEEE Transactions on Power Delivery, 2005
Flickers and interharmonics have an inherent relationship. The magnitude of a voltage can fluctuate if it contains interharmonics. This paper proposes a limit for interharmonics by utilizing the published limits on voltage flicker. The limit is presented as an interharmonic-magnitude versus interharmonic-frequency curve and is called interharmonic ...
T. Tayjasanant, W. Wang, C. Li, W. Xu
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Flickers and interharmonics have an inherent relationship. The magnitude of a voltage can fluctuate if it contains interharmonics. This paper proposes a limit for interharmonics by utilizing the published limits on voltage flicker. The limit is presented as an interharmonic-magnitude versus interharmonic-frequency curve and is called interharmonic ...
T. Tayjasanant, W. Wang, C. Li, W. Xu
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Voltage Flicker Caused by Two Interharmonics
2006 Canadian Conference on Electrical and Computer Engineering, 2006Flickers and interharmonics have an inherent relationship. The magnitude of a voltage can fluctuate if it contains interharmonics. This paper investigates the amount of voltage fluctuation caused by two interharmonic components since interharmonics are often produced in pairs.
Jing Yong, Caixin Sun, Wilsun Xu
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Issues related to interharmonics
IEEE Power Engineering Society General Meeting, 2004., 2004Some of the most remarkable issues related to interharmonic modelling and simulation are presented. Starting from the basic mathematical aspects, attention is firstly devoted to interharmonic frequency and amplitude variability. Then, the extension of the classical models developed for harmonic modelling to include interharmonics is discussed with ...
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IEC flickermeter response to interharmonic pollution
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951), 2005The paper discusses the response of flickermeters to interharmonic voltage pollution from theoretical and experimental points of view. Light flicker can be caused by interharmonics because these components are able to introduce fluctuations both in rms and peak value of supply voltage.
GALLO, Daniele +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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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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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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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 ...
openaire +1 more source