Pub Date : 2022-05-29DOI: 10.1109/ICHQP53011.2022.9808791
Shoji Kawasaki, Ryuji Shiraishi
In recent years, it has been pointed out that the power quality of a distribution system is deteriorating due to the increase of harmonics in power systems. This is thought to be causally related to the diversification of loads due to the advancement of power electronics technology and the increase in the number of distributed generators for home use in consideration of their impact on the environment. Harmonics not only degrade the power quality but also cause various additional problems. As one of the countermeasures to such problems, our laboratory has proposed a method for estimating the harmonic sources by separating the harmonic currents flowing in distribution lines. However, the method has the problem that it cannot estimate the harmonic sources in a distribution system containing static capacitors. In this paper, the authors propose a method to estimate not only the harmonic sources but also the installation points of SC in the distribution system.
{"title":"A Study on Estimation of Harmonic Sources and SC Installation Points in Distribution Systems","authors":"Shoji Kawasaki, Ryuji Shiraishi","doi":"10.1109/ICHQP53011.2022.9808791","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808791","url":null,"abstract":"In recent years, it has been pointed out that the power quality of a distribution system is deteriorating due to the increase of harmonics in power systems. This is thought to be causally related to the diversification of loads due to the advancement of power electronics technology and the increase in the number of distributed generators for home use in consideration of their impact on the environment. Harmonics not only degrade the power quality but also cause various additional problems. As one of the countermeasures to such problems, our laboratory has proposed a method for estimating the harmonic sources by separating the harmonic currents flowing in distribution lines. However, the method has the problem that it cannot estimate the harmonic sources in a distribution system containing static capacitors. In this paper, the authors propose a method to estimate not only the harmonic sources but also the installation points of SC in the distribution system.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"461 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127531542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-29DOI: 10.1109/ICHQP53011.2022.9808544
C. G. Bianchin, Flavio Resende Garcia, Cretan Pires de Oliveira, Priscila Facco de Melo, R. Schmal, Victor Gati, Patrick Roberto Almeida, Wiviane Caroline Maneira
This paper presents the development of two prototypes units of a three-phase four-wire shunt active filter, one for an input voltage of 220 V and the other for 380 V. Both use the same hardware; the differences are in monitoring and control embedded in the microcontroller and can correct up to the 31st harmonic. Besides, the user can choose the harmonic(s) to be compensated. To correct unforeseen errors observed in the current sampling to be synthesized at the filter's input, a harmonic auto-calibration algorithm was created to correct the amplitude and angle of each harmonic of the sampled current. A current saturation algorithm was also implemented for each leg through the analysis of the phase sequences of each harmonic, preventing the current from exceeding the established and safe value. The two prototypes have been installed and in use at the BREE industrial plant, and they have been fixing harmonics for almost a year (BREE is a company that manufactures equipment and provides engineering services for reactive compensation, power quality, and energy efficiency and is a partner in this project).
{"title":"A 3-phase 4-wire Shunt Active Filter with Selectable Harmonic Compensation and an Auto-Calibration Harmonic Algorithm","authors":"C. G. Bianchin, Flavio Resende Garcia, Cretan Pires de Oliveira, Priscila Facco de Melo, R. Schmal, Victor Gati, Patrick Roberto Almeida, Wiviane Caroline Maneira","doi":"10.1109/ICHQP53011.2022.9808544","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808544","url":null,"abstract":"This paper presents the development of two prototypes units of a three-phase four-wire shunt active filter, one for an input voltage of 220 V and the other for 380 V. Both use the same hardware; the differences are in monitoring and control embedded in the microcontroller and can correct up to the 31st harmonic. Besides, the user can choose the harmonic(s) to be compensated. To correct unforeseen errors observed in the current sampling to be synthesized at the filter's input, a harmonic auto-calibration algorithm was created to correct the amplitude and angle of each harmonic of the sampled current. A current saturation algorithm was also implemented for each leg through the analysis of the phase sequences of each harmonic, preventing the current from exceeding the established and safe value. The two prototypes have been installed and in use at the BREE industrial plant, and they have been fixing harmonics for almost a year (BREE is a company that manufactures equipment and provides engineering services for reactive compensation, power quality, and energy efficiency and is a partner in this project).","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126136676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-29DOI: 10.1109/ICHQP53011.2022.9808611
Jairo Giacomini, J. C. Cebrian, H. K. Morales Paredes
High penetration rates of distributed generation using photovoltaic systems (PVS) bring challenges for distribution network operation, mainly due to PVS presenting intermittent generation characteristics. Strategies such as controlling the active and reactive power supplied to the network by inverter connected to the PVS are adopted to overcome the challenges. The use of electric battery storage systems (EBSS) has proved to be a viable alternative to increase the host capacity of distribution networks. An EBSS charging strategy during the solar generation period and discharging during the period of highest demand can contribute to reducing consumers’ energy costs and network loading. This paper investigates the PVS hosting capacity variation in distribution networks, without EBSS and by a methodology for allocating EBSS on the network busbars. The results show that the most expressive increase in PVS hosting capacity is obtained in busbars with higher power loads and when the periods of highest demand are displaced from the period of photovoltaic generation.
{"title":"Improving PV Hosting Capacity by Implementing Energy Storage Systems on Distribution Networks","authors":"Jairo Giacomini, J. C. Cebrian, H. K. Morales Paredes","doi":"10.1109/ICHQP53011.2022.9808611","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808611","url":null,"abstract":"High penetration rates of distributed generation using photovoltaic systems (PVS) bring challenges for distribution network operation, mainly due to PVS presenting intermittent generation characteristics. Strategies such as controlling the active and reactive power supplied to the network by inverter connected to the PVS are adopted to overcome the challenges. The use of electric battery storage systems (EBSS) has proved to be a viable alternative to increase the host capacity of distribution networks. An EBSS charging strategy during the solar generation period and discharging during the period of highest demand can contribute to reducing consumers’ energy costs and network loading. This paper investigates the PVS hosting capacity variation in distribution networks, without EBSS and by a methodology for allocating EBSS on the network busbars. The results show that the most expressive increase in PVS hosting capacity is obtained in busbars with higher power loads and when the periods of highest demand are displaced from the period of photovoltaic generation.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124887478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-29DOI: 10.1109/ICHQP53011.2022.9808627
W. Hassan, G. Hussain, F. Mahmood, Muhammad Akmal
Partial discharges (PD) diagnostics are considered as reliable techniques for the insulation health assessment of various electrical components of the power system. Generally, PD diagnostic tests are performed in laboratory by ignoring the effect of harmonic pollution in test voltage waveform. However, the operation of electric motors (EMs) fed by variable frequency drives (VFD) produces harmonic distortion in the sinusoidal test voltage waveform. During low speed operation of VFD, the influence of harmonic distortion in test voltage waveform is increased. The additional distortion parameters in the test voltage waveform can significantly increase the PD activity in the EM insulation. Therefore, for correct understanding of PD data, it is essential to consider the actual harmonic spectrum of the test voltage waveform during online PD measurement. This paper presents a methodology for the quantification of the probability of PD in VFD-fed EMs under different concentration of voltage harmonics. For the experimental work, PD diagnostic tests have been performed under variable operating conditions of eight EMs and PD severity is investigated by calculating the PD characteristic parameters at different harmonic distortion levels. Also, the probability density functions and cumulative distribution functions for several probability distributions were evaluated to statistically process the PD data at different harmonic levels. Finally, the distribution fitting tools have been implemented to find an appropriate distribution that can precisely characterize the probability of PD under different concentration of voltage harmonics. The proposed method may be utilized for studying the effect of harmonic distortion on PD activity and estimating the lifetime of stator insulation in EMs.
{"title":"Quantifying the Probability of Partial Discharge in VFD Fed Electric Motors under Voltage Harmonics Concentration","authors":"W. Hassan, G. Hussain, F. Mahmood, Muhammad Akmal","doi":"10.1109/ICHQP53011.2022.9808627","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808627","url":null,"abstract":"Partial discharges (PD) diagnostics are considered as reliable techniques for the insulation health assessment of various electrical components of the power system. Generally, PD diagnostic tests are performed in laboratory by ignoring the effect of harmonic pollution in test voltage waveform. However, the operation of electric motors (EMs) fed by variable frequency drives (VFD) produces harmonic distortion in the sinusoidal test voltage waveform. During low speed operation of VFD, the influence of harmonic distortion in test voltage waveform is increased. The additional distortion parameters in the test voltage waveform can significantly increase the PD activity in the EM insulation. Therefore, for correct understanding of PD data, it is essential to consider the actual harmonic spectrum of the test voltage waveform during online PD measurement. This paper presents a methodology for the quantification of the probability of PD in VFD-fed EMs under different concentration of voltage harmonics. For the experimental work, PD diagnostic tests have been performed under variable operating conditions of eight EMs and PD severity is investigated by calculating the PD characteristic parameters at different harmonic distortion levels. Also, the probability density functions and cumulative distribution functions for several probability distributions were evaluated to statistically process the PD data at different harmonic levels. Finally, the distribution fitting tools have been implemented to find an appropriate distribution that can precisely characterize the probability of PD under different concentration of voltage harmonics. The proposed method may be utilized for studying the effect of harmonic distortion on PD activity and estimating the lifetime of stator insulation in EMs.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124141585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-29DOI: 10.1109/ICHQP53011.2022.9808785
A. Muresan, O. Fati, L. Czumbil, A. Ceclan, D. Jurj, R. Rizzo, D. Micu
The actual study proposes a power quality analysis of a medium-sized industrial microgrid which in turn generates harmonic disturbances on the medium voltage side of a 110kV/20kV substation. Due to the interconnection of different loads on similar medium voltage busbars, the harmonic distortion propagates along the circuit affecting the stability of the local grid. Using advanced simulation tools based on numerical analysis an equivalent circuit of the microgrid is created. According to the computed results levels of total harmonic distortion exceeding the limit values imposed by the national performance standards were discovered within the load understudy. In this regard, a complex analysis procedure targeting the variable speed drives is deployed in order to identify the proper technical solutions for attenuation and filtering of harmonics in the system. Therefore, this study highlights solutions for mitigating the higher-order harmonics and the impact of their implementation, i.e. the best solution.
{"title":"A Practical Approach to Mitigate the Harmonic Distorsion in a Microgrid, Case Study","authors":"A. Muresan, O. Fati, L. Czumbil, A. Ceclan, D. Jurj, R. Rizzo, D. Micu","doi":"10.1109/ICHQP53011.2022.9808785","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808785","url":null,"abstract":"The actual study proposes a power quality analysis of a medium-sized industrial microgrid which in turn generates harmonic disturbances on the medium voltage side of a 110kV/20kV substation. Due to the interconnection of different loads on similar medium voltage busbars, the harmonic distortion propagates along the circuit affecting the stability of the local grid. Using advanced simulation tools based on numerical analysis an equivalent circuit of the microgrid is created. According to the computed results levels of total harmonic distortion exceeding the limit values imposed by the national performance standards were discovered within the load understudy. In this regard, a complex analysis procedure targeting the variable speed drives is deployed in order to identify the proper technical solutions for attenuation and filtering of harmonics in the system. Therefore, this study highlights solutions for mitigating the higher-order harmonics and the impact of their implementation, i.e. the best solution.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124360119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-29DOI: 10.1109/ICHQP53011.2022.9808567
Conor Nagle, James F. Kelly, İbrahim Şengör, B. Hayes
With an unprecedented increase in power demand and the carbon-neutral policies of countries, renewable-based power generation technologies have been playing a key role in the generation side. Depending on the available sources of these technologies in that country, the most appropriate ones are being chosen to integrate into the power system. However, power fluctuations of the renewable energy system might deteriorate the power quality (PQ) of the power system. This paper provides the PQ comparison of the wind generator (WG) and oscillating water column (OWC) in terms of the harmonic distortions considering the respected definitions in the standard of IEC 61000. Moreover, the analyzes are conducted in cases of the high, medium, and low energy states together with considering the grid strength.
{"title":"Power Quality Comparison of Wind Turbines and Oscillating Wave Columns Considering IEC 61000","authors":"Conor Nagle, James F. Kelly, İbrahim Şengör, B. Hayes","doi":"10.1109/ICHQP53011.2022.9808567","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808567","url":null,"abstract":"With an unprecedented increase in power demand and the carbon-neutral policies of countries, renewable-based power generation technologies have been playing a key role in the generation side. Depending on the available sources of these technologies in that country, the most appropriate ones are being chosen to integrate into the power system. However, power fluctuations of the renewable energy system might deteriorate the power quality (PQ) of the power system. This paper provides the PQ comparison of the wind generator (WG) and oscillating water column (OWC) in terms of the harmonic distortions considering the respected definitions in the standard of IEC 61000. Moreover, the analyzes are conducted in cases of the high, medium, and low energy states together with considering the grid strength.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121858328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-29DOI: 10.1109/ICHQP53011.2022.9808589
Jairo Adán Hernández Coba, A. Romero, S. Müller, Jan Meyer
In the following years, a massive use of Light-Emitting Diode (LED) lamps is expected to occur in the residential sector. As these lamps include a power electronic interface, their widespread implementation can have a significant impact on current and voltage harmonics in residential Low Voltage (LV) networks. This paper evaluates the expected contribution by LED lighting to the distortion levels of odd harmonics up to the 19th order by a linear and non-iterative method in which harmonic emission models of different detail are implemented to represent the LED lamps. A synthetic LV residential grid developed for an Argentinian province is selected as study case and a Monte Carlo simulation is designed to represent the random usage behavior of lighting devices in households. Obtained results indicate that modeling the LED lamps as constant current sources provides an adequate estimation of RMS line and neutral currents, while a complete coupled Norton model representing the elements by tensors derived using Fourier Descriptors is required to yield accurate current and voltage harmonics.
{"title":"Harmonic Distortion in Low Voltage Residential Grids Caused by LED Lamps","authors":"Jairo Adán Hernández Coba, A. Romero, S. Müller, Jan Meyer","doi":"10.1109/ICHQP53011.2022.9808589","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808589","url":null,"abstract":"In the following years, a massive use of Light-Emitting Diode (LED) lamps is expected to occur in the residential sector. As these lamps include a power electronic interface, their widespread implementation can have a significant impact on current and voltage harmonics in residential Low Voltage (LV) networks. This paper evaluates the expected contribution by LED lighting to the distortion levels of odd harmonics up to the 19th order by a linear and non-iterative method in which harmonic emission models of different detail are implemented to represent the LED lamps. A synthetic LV residential grid developed for an Argentinian province is selected as study case and a Monte Carlo simulation is designed to represent the random usage behavior of lighting devices in households. Obtained results indicate that modeling the LED lamps as constant current sources provides an adequate estimation of RMS line and neutral currents, while a complete coupled Norton model representing the elements by tensors derived using Fourier Descriptors is required to yield accurate current and voltage harmonics.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123187231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-29DOI: 10.1109/ICHQP53011.2022.9808424
P. Castello, S. Sulis, G. Frigo, M. Agustoni
Modern power systems are experiencing a rapid transition towards a fully digital monitoring and control paradigm. In compliance with the specifications of the IEC 61850 standards family, measurement data shall be output by non-conventional instrument transformers according to the Sampled Value (SV) communication protocol. It is thus reasonable to expect that also Power Quality (PQ) measurements shall rely on SV data streams. Furthermore, due to the limited sampling frequency values considered in the standard, it is essential to evaluate the impact of different samples per cycle or packet loss conditions while detecting a PQ event. This paper investigates the feasibility of a PQ meter specific for voltage dips detection based only on SVs. To this end, a prototype hardware and software architecture is presented and characterized in standard and real-world test conditions. An experimental validation against a commercial device confirms the potential of the proposed SV-based PQ meter and the performance dependence on SV data stream integrity.
{"title":"Power Quality Meters Based on Digital Inputs: A Feasibility Study","authors":"P. Castello, S. Sulis, G. Frigo, M. Agustoni","doi":"10.1109/ICHQP53011.2022.9808424","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808424","url":null,"abstract":"Modern power systems are experiencing a rapid transition towards a fully digital monitoring and control paradigm. In compliance with the specifications of the IEC 61850 standards family, measurement data shall be output by non-conventional instrument transformers according to the Sampled Value (SV) communication protocol. It is thus reasonable to expect that also Power Quality (PQ) measurements shall rely on SV data streams. Furthermore, due to the limited sampling frequency values considered in the standard, it is essential to evaluate the impact of different samples per cycle or packet loss conditions while detecting a PQ event. This paper investigates the feasibility of a PQ meter specific for voltage dips detection based only on SVs. To this end, a prototype hardware and software architecture is presented and characterized in standard and real-world test conditions. An experimental validation against a commercial device confirms the potential of the proposed SV-based PQ meter and the performance dependence on SV data stream integrity.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130385572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-29DOI: 10.1109/ICHQP53011.2022.9808566
M. Michalski, G. Wiczyński
Voltage fluctuation of the power supply in a circuit containing light sources can cause flicker. The relationship between voltage fluctuation and flicker is quite complex. In this paper, the occurrence of flicker for voltage fluctuations with frequencies higher than the power frequency is investigated on the basis of laboratory measurements. Eight light sources have been used in the study – three incandescent bulbs and five low-power LED lamps. For clipped cosine voltage, flicker was confirmed to occur for frequencies up to seven times the power frequency, namely 350 Hz. It has been observed that LED lamps may be more susceptible to voltage fluctuation than incandescent bulbs, especially at higher fluctuation frequencies.
{"title":"Flicker Dependency on Voltage Fluctuation at Frequencies Greater Than Power Frequency","authors":"M. Michalski, G. Wiczyński","doi":"10.1109/ICHQP53011.2022.9808566","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808566","url":null,"abstract":"Voltage fluctuation of the power supply in a circuit containing light sources can cause flicker. The relationship between voltage fluctuation and flicker is quite complex. In this paper, the occurrence of flicker for voltage fluctuations with frequencies higher than the power frequency is investigated on the basis of laboratory measurements. Eight light sources have been used in the study – three incandescent bulbs and five low-power LED lamps. For clipped cosine voltage, flicker was confirmed to occur for frequencies up to seven times the power frequency, namely 350 Hz. It has been observed that LED lamps may be more susceptible to voltage fluctuation than incandescent bulbs, especially at higher fluctuation frequencies.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133496212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-29DOI: 10.1109/ICHQP53011.2022.9808654
Da Wang, P. Tichelen
Noise and arc detection are two issues which should be handled seriously during the roll out of DC micro grids. Most of arc detection systems nowadays rely on the measurement of arc noise within the 2-150 kHz band. However, the existence of background noise may interfere arc detection and lead to misjudgments. To investigate this topic, noise emissions of 3 common DC loads were first tested. Test results could be used to tune EMC requirements for DC microgrids. Therefore an arc test platform was developed as the necessary analysis tool. Arc characteristics were investigated in different conditions. Finally, the potential influence of background noise on arc detection was analyzed, which can be helpful for the future development of arc detection in DC micro grids and elaborating EMC requirements.
{"title":"Noise in DC Systems and the Potential Influence on Arc Detection","authors":"Da Wang, P. Tichelen","doi":"10.1109/ICHQP53011.2022.9808654","DOIUrl":"https://doi.org/10.1109/ICHQP53011.2022.9808654","url":null,"abstract":"Noise and arc detection are two issues which should be handled seriously during the roll out of DC micro grids. Most of arc detection systems nowadays rely on the measurement of arc noise within the 2-150 kHz band. However, the existence of background noise may interfere arc detection and lead to misjudgments. To investigate this topic, noise emissions of 3 common DC loads were first tested. Test results could be used to tune EMC requirements for DC microgrids. Therefore an arc test platform was developed as the necessary analysis tool. Arc characteristics were investigated in different conditions. Finally, the potential influence of background noise on arc detection was analyzed, which can be helpful for the future development of arc detection in DC micro grids and elaborating EMC requirements.","PeriodicalId":249133,"journal":{"name":"2022 20th International Conference on Harmonics & Quality of Power (ICHQP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129450458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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