Triplen harmonics: Myths and reality

Chicco, Gianfranco; Postolache, Petru; Toader, Cornel

doi:10.1016/j.epsr.2011.03.007

Cited by 23 publications

(8 citation statements)

References 14 publications

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“…As can be observed, the harmonic current value was close at both power output extremes. Harmonic current behaviour of a mainly negative sequence ( h = 3 m − 1, i.e. the 5th‐order, 11th‐order and 17th‐order harmonics) was similar except for the 11th‐order harmonic.…”

Section: Photovoltaic Power Output Level and Harmonic Current Emissionmentioning

confidence: 91%

“…Harmonic current behaviour of a mainly positive sequence ( h = 3 m − 2, m = 1, …, ∞, i.e. the 7th‐order, 13th‐order and 19th‐order harmonics) showed a sharp peak at low and high power outputs (<10% and >80%).…”

Section: Photovoltaic Power Output Level and Harmonic Current Emissionmentioning

confidence: 99%

“…Harmonic current behaviour of a mainly zero or triple harmonic sequence ( h = 3 m − 3, i.e. the 3rd‐order, 9th‐order, 15th‐order and 21th‐order harmonics), except for the 9th‐order harmonic, had a linear or quadratic increase with the PV power output.…”

Section: Photovoltaic Power Output Level and Harmonic Current Emissionmentioning

confidence: 99%

See 2 more Smart Citations

Statistical characterisation of harmonic current emission for large photovoltaic plants

Hernández

Ortega

Medina

2013

Int. Trans. Electr. Energ. Syst.

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SUMMARY Harmonic current emission of photovoltaic (PV) systems is a well‐known problem. However, its quantitative characterisation, which requires the compilation and use of abundant statistical data, had never been satisfactorily dealt with. This paper discusses the multifaceted statistical characterisation of these emissions in a large PV plant. The topics addressed are harmonic current magnitude and its phase angle in relation to PV power output level and background harmonic voltages. Harmonic current emission in PV systems should be recorded during any single 1‐week period throughout a full year. Because power quality metres are expensive, it is more economical to measure this type of emission with simple, cost‐effective equipment. This paper thus presents a new assessment method for harmonic emission based on PV power output level, which is the main parameter affecting the emission, and which is easily monitored by most PV inverters. This new method uses statistical data to define a dependence model for the PV power output of PV harmonic current emissions. Such a model is rarely provided by PV inverter manufacturers. However, the simpler dependence model required for this method can be obtained by inexpensive power quality metres. This new method also produces accurate results at low process costs. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Photovoltaic Power Output Level and Harmonic Current Emissionmentioning

confidence: 91%

Section: Photovoltaic Power Output Level and Harmonic Current Emissionmentioning

confidence: 99%

See 1 more Smart Citation

Statistical characterisation of harmonic current emission for large photovoltaic plants

Hernández

Ortega

Medina

2013

Int. Trans. Electr. Energ. Syst.

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“…The SCB framework has been used to identify suitable components and indicators associated to balance, unbalance and distortion referring to the triplen harmonics only [48]. In this way, it is possible to quantify to what extent the triplen harmonics contribute to the system balance or unbalance in particular situations occurring in unbalanced systems.…”

Section: Harmonic Ordermentioning

confidence: 99%

100 Years of Symmetrical Components

Chicco

Mazza

2019

Energies

Self Cite

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28 June 2018 was the 100th anniversary of the first presentation on symmetrical components made by Charles LeGeyt Fortescue at the 34th Annual Convention of the American Institute of the Electrical Engineers in Atlantic City (NJ, USA). The introduction of the symmetrical component concept was immediately seen as a milestone for electrical system studies, and many applications have been developed during the ensuing years. Today, refined or advanced contributions to conceptual and practical aspects of electrical applications are still being proposed based on the powerful structure of symmetrical components. This paper recalls the most significant steps made in the electrical engineering field after the introduction of the symmetrical component theory, and indicates recent developments concerning the studies on electrical machines, harmonics and interharmonics in different applications, and the operation of power and distribution systems with distributed energy resources.

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“…Non-linear loads draw highly distorted phase current. In non-linear circuits, the triplen harmonic current add arithmathetically in the neutral line resulting in high harmonic distortion [23] [24] in neutral. The 3 rd harmonic is the main contributor of harmonic current [25] [21].…”

Section: Introductionmentioning

confidence: 99%

Neutral Current and Neutral Voltage in Three Phase Four Wire Distribution System of a Technical Institution

Dey¹,

Chakraborty²

2013

IJCA

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Neutral current and neutral voltage in three-phase four-wire distribution system is a big concern in power system. Various non-linear loads specially the switch mode power supply types loads inject harmonic current in neutral. The variations of neutral current and neutral voltage are analysed. Measurements taken from Electrical Machine lab of National Institute of Technology, Agartala are presented to determine the extent of neutral current and neutral voltage problem. The results show the effect of harmonic distortion in neutral conductor.

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Triplen harmonics: Myths and reality

Cited by 23 publications

References 14 publications

Statistical characterisation of harmonic current emission for large photovoltaic plants

Statistical characterisation of harmonic current emission for large photovoltaic plants

100 Years of Symmetrical Components

Neutral Current and Neutral Voltage in Three Phase Four Wire Distribution System of a Technical Institution

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