Measurements of High-Frequency (2–150 kHz) Distortion in Low-Voltage Networks

Larsson, Ellinor; Bollen, M.H.J.; Wahlberg, Mats; Lundmark, Christina; Rönnberg, Sarah

doi:10.1109/tpwrd.2010.2041371

Cited by 115 publications

(52 citation statements)

References 8 publications

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“…Moreover, also the spectrogram presented in [23] is included for all of the considered case studies, in order to underline the different approach of SWWMEM in respect to the currently available high-frequency signal processing technique.…”

Section: Numerical Validation Of the Proposed Methodsmentioning

confidence: 99%

“…Since, as seen, the supraharmonic emitters are very common the spectral components from 2 kHz to 150 kHz have recently received great interest in the relevant literature [2,7,16,[20][21][22][23][24][25][26][27]. Many research activities have recently focused on the effects of the high-frequency sources on the power systems and their propagation [2,6,7].…”

Section: Spectral Components In the Range From 2 Khz To 150 Khzmentioning

confidence: 99%

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A Wavelet-Modified ESPRIT Hybrid Method for Assessment of Spectral Components from 0 to 150 kHz

et al. 2017

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Abstract:Waveform distortions are an important issue in distribution systems. In particular, the assessment of very wide spectra, that include also components in the 2-150 kHz range, has recently become an issue of great interest. This is due to the increasing presence of high-spectral emission devices like end-user devices and distributed generation systems. This study proposed a new sliding-window wavelet-modified estimation of signal parameters by rotational invariance technique (ESPRIT) method, particularly suitable for the spectral analysis of waveforms that have very wide spectra. The method is very accurate and requires reduced computational effort. It can be applied successfully to detect spectral components in the range of 0-150 kHz introduced both by distributed power plants, such as wind and photovoltaic generation systems, and by end-user equipment connected to grids through static converters, such as fluorescent lamps.

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Section: Numerical Validation Of the Proposed Methodsmentioning

confidence: 99%

Section: Spectral Components In the Range From 2 Khz To 150 Khzmentioning

confidence: 99%

A Wavelet-Modified ESPRIT Hybrid Method for Assessment of Spectral Components from 0 to 150 kHz

et al. 2017

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“…However, more research is still needed to investigate the grid impedance at higher frequencies [40]. Voltage measurements in the frequency range of 2-150 kHz at the PoC have shown voltage distortion for a residential setting from about 0.4 V at 2 kHz, 0.1 V at 4 kHz, and 0.05 V at 10 kHz [41]. Fig.…”

Section: Propagationmentioning

confidence: 99%

A literature survey on power quality disturbances in the frequency range of 2-150 kHz

Shaik¹,

Ćuk²,

Cobben³

2017

REPQJ

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“…To be able to illustrate the variations in harmonic voltage during the whole week, special coloured diagrams were created based on a method developed in [8,9]. The results is shown in Figure 10 Above 3 kHz, some minor emission is present almost continuously around 3500 Hz, and intermittent around 4500 and 5500 Hz.…”

Section: Measurementsmentioning

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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Measurements of High-Frequency (2–150 kHz) Distortion in Low-Voltage Networks

Cited by 115 publications

References 8 publications

A Wavelet-Modified ESPRIT Hybrid Method for Assessment of Spectral Components from 0 to 150 kHz

A Wavelet-Modified ESPRIT Hybrid Method for Assessment of Spectral Components from 0 to 150 kHz

A literature survey on power quality disturbances in the frequency range of 2-150 kHz

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

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