An Investigation of the Harmonic Emissions of Wind Turbines

Tentzerakis, S.; Papathanassiou, Stavros A.

doi:10.1109/tec.2006.889607

Cited by 123 publications

(101 citation statements)

References 11 publications

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“…Turbine I shows an increase, Turbine II a mild decrease and Turbine III remains about the same. Each turbine is different; the measurements together with earlier measurements presented in [14,15] indicate that there is no clear trend for the relation between THD (in ampere) and active-power production. Both Turbine I and Turbine II present a narrow range (by absolute value) of the emission for a certain active power production, if compared to that of Turbine III.…”

Section: Thd and Tid As A Function Of Active Powermentioning

confidence: 74%

“…The current THDs were recorded in absolute ampere in Dranetz instrument. The paper [14] presents a constant THC (total harmonic current in percent with the rated wind turbine current), with the increasing active power production. Whereas the paper [15] points out an exponentially decreasing trend (total harmonic distortion as a percentage of fundamental current component) with respect to active power production in a wind farm, and an unapparent trend of that in percent of wind farm rated current.…”

Section: Thd and Tid As A Function Of Active Powermentioning

confidence: 99%

“…A study based on IEC 61400-21 has been performed on five wind turbines [14]. The current total harmonic distortion is found independent on the output power.…”

Section: Introductionmentioning

confidence: 99%

“…Also the fifth harmonic is shown to be independent of the active power for the five wind turbines. The interharmonics and other harmonics have not been presented in reference [14].…”

Section: Introductionmentioning

confidence: 99%

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Measurements of harmonic emission versus active power from wind turbines

Yang¹,

Bollen²,

Larsson³

et al. 2014

Electric Power Systems Research

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a b s t r a c tThis paper presents harmonic measurements from three individual wind turbines (2 and 2.5 MW size). Both harmonics and interharmonics have been evaluated, especially with reference to variations in the active-power production. The overall spectra reveal that emission components may occur at any frequency and not only at odd harmonics. Interharmonics and even harmonics emitted from wind turbines are relatively high. Individual frequency components depend on the power production in different ways: characteristic harmonics are independent of power; interharmonics show a strong correlation with power; other harmonic and interharmonic components present various patterns. It is concluded that the power production is not the only factor determining the current emission of a wind energy conversion system.

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Section: Thd and Tid As A Function Of Active Powermentioning

confidence: 74%

Section: Thd and Tid As A Function Of Active Powermentioning

confidence: 99%

“…A study based on IEC 61400-21 has been performed on five wind turbines [14]. The current total harmonic distortion is found independent on the output power.…”

Section: Introductionmentioning

confidence: 99%

“…Also the fifth harmonic is shown to be independent of the active power for the five wind turbines. The interharmonics and other harmonics have not been presented in reference [14].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Measurements of harmonic emission versus active power from wind turbines

Yang¹,

Bollen²,

Larsson³

et al. 2014

Electric Power Systems Research

View full text Add to dashboard Cite

show abstract

“…the current waveform is not sinusoidal. The level of distortion depends strongly on the kind of converter technology; measurements have shown that the emission from individual turbines is rather small but that the spectrum contains frequencies that are normally not present in the power system [1,2,3,4]. Section II of this paper presents the harmonic issues related with wind farms, for frequencies up to 2 kHz: the emission from individual turbines and the propagation through the collection grid.…”

Section: Introductionmentioning

confidence: 99%

Propagation of harmonic emission from the turbines through the collection grid to the public grid

Axelsson

Holm

Bollen

et al. 2013

22nd International Conference and Exhibition on Electricity Distribution (CIRED 2013)

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Abstract-This paper addresses the harmonic emission from a large off-shore wind farm. An overview is given of the issues, where a distinction is made between frequencies below and above 2 kHz. Three different approaches are presented: a simplified mathematical model; a more detailed mathematical model; and measurements and the point of connection for an off-shore wind farm. It is concluded from both models and measurements that the emission is small for frequencies above a few kHz. However, specific resonances at higher frequencies involving the power transformers, when coinciding with switching frequencies or harmonics of switching frequencies, could result in high emission even at these high frequencies.

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An impedance matrix constrained‐based method for harmonic emission level estimation

Zheng

Xiao

Wang

2020

Int Trans Electr Energ Syst

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Summary The harmonic impedances are important for both utility companies and their customers. The data have many uses, such as estimating harmonic emission levels, designing filters. Complex independent component analysis is a well‐accepted method for harmonic impedance estimation. However, a lack of data points for each calculation leads to wrong results. To increase the feasibility of this method, we proposed a constrained complex independent component analysis‐based method by adding the essential feature of the harmonic impedance matrix. Thus, the recovered source signals, which are highly consistent with the original source signals can be found when the data quantity for each calculation is little. The method has been verified using simulation studies and extensive field data. The results show that the proposed method can serve as a useful tool to support the harmonic impedance calculation task of utility companies and their customers.

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An Investigation of the Harmonic Emissions of Wind Turbines

Cited by 123 publications

References 11 publications

Measurements of harmonic emission versus active power from wind turbines

Measurements of harmonic emission versus active power from wind turbines

Propagation of harmonic emission from the turbines through the collection grid to the public grid

An impedance matrix constrained‐based method for harmonic emission level estimation

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