Supraharmonic bands detection for low voltage devices

Agudelo-Martinez, Daniel; Limas, Miguel; Pavas, Andres; Bacca, J.P.

doi:10.1109/ichqp.2016.7783327

Cited by 14 publications

(9 citation statements)

References 6 publications

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“…1 is the Power Quality Monitor Dewetron TM 3040. Maximum rates of error are similar to those reported in [10]. Sample frequency was 1.0 Msps and consequently 500 kHz was the highest observable frequency.…”

Section: B Methods Of Disturbances Interaction In Frequency Domainsupporting

confidence: 83%

Interaction of power quality disturbances within 2–150 kHz (supraharmonics): Analytical framework

Agudelo-Martinez

Garzon

Pavas

2018

2018 18th International Conference on Harmonics and Quality of Power (ICHQP)

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Disturbances interaction at supraharmonic range (2-150 kHz) between two lighting devices and a power source is described in this article by means of an Electrical Power method. Currents and voltages were measured from a LED lamp, a CFL device and an AC Power Source under normal operation in order to describe how conducted disturbances interact within the 2-150 kHz frequency range. From an Electrical Power point of view, the devices used are described as Power-sharing agents and therefore the disturbances observed from their operation can be exchanged not only with their electric neighbourhood, but also throughout the Frequency Domain. This method can be used for the Interaction Description in Frequency Domain of steadystate disturbances between devices without directly considering the impedance behaviour of such devices.

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Section: B Methods Of Disturbances Interaction In Frequency Domainsupporting

confidence: 83%

Interaction of power quality disturbances within 2–150 kHz (supraharmonics): Analytical framework

Agudelo-Martinez

Garzon

Pavas

2018

2018 18th International Conference on Harmonics and Quality of Power (ICHQP)

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“…The bigger the capacitance at Smoothing Filter stage, the lower the ripple in voltage DC signal. However, because of size constrains these electrolytic capacitors seem to range below 47uF , as it was reported in [8] and [20] with regard to previously measured LED lamps, then the DC-DC Power Converters supply curly DC voltages. According to some previous measurements [19] [20], lowpower LED lamps show different Current vs. Voltage waveforms (henceforth i-v curves) under normal operation, as it can be seen in Fig.…”

Section: Introductionmentioning

confidence: 83%

“…E NERGY-saving appliances and other non-linear loads massively used by customers in low voltage grids have increased harmonic and interharmonic disturbances, some of them lying in the frequency range between 2-150 kHz (so called Supraharmonic range) [1]- [7]. Emissions between 2-150 kHz and beyond normally appear because of the normal operation of devices such as lighting devices (LED lamps, Compact Fluorescent Lamps), PV inverters, Power Line Communication systems (PLC), battery chargers and many other devices based on power electronics circuits [8], [17]. Although some of these appliances comply with strict regulations, supraharmonic emissions are likely to appear when low power, massivelyused devices are connected in low voltage installations [1]- [7].…”

Section: Introductionmentioning

confidence: 99%

Interaction of some low power LED lamps within 2–150 kHz (supraharmonics)

Agudelo-Martinez

Rios

Pavas

2018

2018 18th International Conference on Harmonics and Quality of Power (ICHQP)

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Disturbances interaction at supraharmonic range between some low-power LED lamps in single and simultaneous operation are described through this article using measurements and simulations. Cases are carried out measuring and simulating typical LED circuits without any Power Factor Corrector stage. The corresponding DC-DC converters and other circuits are simulated in LTSpice R and PSpice R using typical values found in market-available lamps. From measurements and simulations it can be seen that even same technology devices (i.e. low-power LED lamps) can behave as disturbance emitters or receivers. This qualitative study is a step forward to understand the disturbances in the range 2-150 kHz at low voltage based on power electronics circuits.

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“…However, in recent years, due to remarkable progress in active front end power electronic‐based technologies, the range of produced harmonics in power systems has been extended to the frequencies up to 150 kHz [12, 13]. Some research studies like [14, 15] have measured the magnitude of harmonics within the range of 2–150 kHz in different locations. The results of these studies show that there is a high level of harmonics within the frequency range up to 150 kHz.…”

Section: Introductionmentioning

confidence: 99%

Harmonic analysis of grid‐connected inverters considering external distortions: addressing harmonic emissions up to 9 kHz

Khajeh

Solatialkaran

Zare

et al. 2020

IET Power Electronics

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Grid-tied inverters, used in renewable energy sources, are exposed to distortions emitted by various sources including the reference signal, external power grid, and DC-link along with harmonics created by the pulse width modulation unit. However, the effect of these sources on grid-tied inverter output, especially near the resonant frequency of the inverter's filter, is unknown. In this study, a comprehensive harmonic model of the grid-tied inverter is presented by considering all three types of external sources. The proposed model can be utilised for low and high-frequency harmonic emission of grid-connected inverters. A new analytical expression is introduced as an indicator of the maximum possible individual grid current harmonic in the case of harmonic injection of multiple external sources. The impact of series damping resistor on harmonic rejection ability of the inverter is analysed at the range of frequencies around resonance. The simulation and experimental results fulfil the proposed harmonic model of the inverter.

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Supraharmonic bands detection for low voltage devices

Cited by 14 publications

References 6 publications

Interaction of power quality disturbances within 2–150 kHz (supraharmonics): Analytical framework

Interaction of power quality disturbances within 2–150 kHz (supraharmonics): Analytical framework

Interaction of some low power LED lamps within 2–150 kHz (supraharmonics)

Harmonic analysis of grid‐connected inverters considering external distortions: addressing harmonic emissions up to 9 kHz

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