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2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF)最新文献

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Labscale Emulation of Abnormalities in Three-Phase Power Systems and their Preemptive Detection Using Wavelets 三相电力系统异常的Labscale仿真及小波抢先检测
2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF) Pub Date : 2023-06-28 DOI: 10.1109/PQEMC-LF58184.2023.10211747
H. Lorenzen, Sebastian Koj, J. Timmerberg, S. Mylvaganam
{"title":"Labscale Emulation of Abnormalities in Three-Phase Power Systems and their Preemptive Detection Using Wavelets","authors":"H. Lorenzen, Sebastian Koj, J. Timmerberg, S. Mylvaganam","doi":"10.1109/PQEMC-LF58184.2023.10211747","DOIUrl":"https://doi.org/10.1109/PQEMC-LF58184.2023.10211747","url":null,"abstract":"A laboratory-based system is used to emulate common anomalies in three-phase power systems. The laboratory-based system has all the modules found in the real field, but at a lower voltage level. Using the three phase lines, various common faults are simulated, and the corresponding voltages and currents are continuously logged in for all phases. The measured voltages and currents are then analyzed using wavelets. Three types of anomalies are identified using the characteristic signatures in the wavelet-based spectrograms. The combination of the already established techniques for fault location and wavelet-based anomaly detection presented in this paper, can significantly reduce the workload for the operators of energy systems dealing with maintenance and repair works, thus increasing continuity of services and reducing costs.","PeriodicalId":341783,"journal":{"name":"2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131188137","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}
引用次数: 0
Low-Frequency Conducted Emissions Assessment for Electric Powertrain 电动传动系统低频传导排放评估
2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF) Pub Date : 2023-06-28 DOI: 10.1109/PQEMC-LF58184.2023.10211802
Douglas Nascimento, Lu Wan, Michal Przybylski, F. Grassi, R. Smoleński, P. Lezynski
{"title":"Low-Frequency Conducted Emissions Assessment for Electric Powertrain","authors":"Douglas Nascimento, Lu Wan, Michal Przybylski, F. Grassi, R. Smoleński, P. Lezynski","doi":"10.1109/PQEMC-LF58184.2023.10211802","DOIUrl":"https://doi.org/10.1109/PQEMC-LF58184.2023.10211802","url":null,"abstract":"The conducted emissions (CE) in powertrain applications are a major concern due to the high current peaks and transients from torque profiles and sudden speed changes. This paper investigates the time-domain noises analytically through a curve-fitting process, whose results can be used to reproduce the noise waveforms avoiding the need to store the entire waveform. Besides, common-mode (CM) and differential-mode (DM) voltages from speed changes of a PMSM (permanent magnet synchronous motor) powertrain are compared, in terms of harmonic components and noise amplitude, by using line impedance stabilization network (LISN) according to different standards. It was observed that DM emissions, at low frequencies, are better coupled to DO-160G LISN and increase progressively with speed rise, while CM noise levels are kept constant.","PeriodicalId":341783,"journal":{"name":"2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF)","volume":"81 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113985199","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}
引用次数: 0
Remote Monitoring of Environment Radiation with Arduino Wemos and Geiger Counter Sensors 基于Arduino Wemos和盖革计数器传感器的环境辐射远程监测
2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF) Pub Date : 2023-06-28 DOI: 10.1109/PQEMC-LF58184.2023.10211935
M. Nicolae, I. Nicolae, Raluca-Cristina Presură Nicolae, P. Nicolae
{"title":"Remote Monitoring of Environment Radiation with Arduino Wemos and Geiger Counter Sensors","authors":"M. Nicolae, I. Nicolae, Raluca-Cristina Presură Nicolae, P. Nicolae","doi":"10.1109/PQEMC-LF58184.2023.10211935","DOIUrl":"https://doi.org/10.1109/PQEMC-LF58184.2023.10211935","url":null,"abstract":"A remote radiation monitoring system is proposed. A method for measuring and analyzing the background radiation level in a given space is developed, based on a Geiger-Müller sensor. The radiation values recorded in a time span can be considered a starting point in establishing the radiation level in a certain location. The occurrence of programmable microcontrollers and different sensors has made possible the creation of low-cost measurement and control systems. Such a data measurement system can be used for monitoring background radiation with an Arduino-based system, and more specifically with a Wemos D1 R1 development board. The radiation monitoring system can collect data from a Geiger-Müller Counter, able to capture the beta particles and gamma rays of the background environment. The data collected by the processor from the Geiger-Müller sensor are transmitted via a wireless connection to a remote ThingSpeak server, where they can be further processed to provide information about the radiation level. Here they can be stored in order to make them available to anyone interested in the evolution of the radiation level over time, for a specific area. As ThingSpeak can provide readings over multiple channels, more radiation sensors can be monitored simultaneously.","PeriodicalId":341783,"journal":{"name":"2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF)","volume":"21 3 Suppl 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122222443","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}
引用次数: 0
Computing and Analysing PQ Indices for a Consumer with Various Sources of Harmonics and Non-symmetries 具有多种谐波和非对称源的用户PQ指数的计算和分析
2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF) Pub Date : 2023-06-28 DOI: 10.1109/PQEMC-LF58184.2023.10211607
I. Nicolae, P. Nicolae, Daniel-Nicolae Cîrstea
{"title":"Computing and Analysing PQ Indices for a Consumer with Various Sources of Harmonics and Non-symmetries","authors":"I. Nicolae, P. Nicolae, Daniel-Nicolae Cîrstea","doi":"10.1109/PQEMC-LF58184.2023.10211607","DOIUrl":"https://doi.org/10.1109/PQEMC-LF58184.2023.10211607","url":null,"abstract":"The paper presents a detailed analysis of certain operating regimes that appear for a consumer with various sources of harmonics and non-symmetries. The analyzed waveforms were acquired with a portable dedicated data acquisition system and transferred to a laptop for processing with Fast Fourier Transform (FFT) and Wavelet Packed Transform (WPT). Small differences (FFT vs WPT) were noticed between the computed values of the power quality indices, due to the non-sinusoidal and sometimes non-symmetric nature of the studied regimes and discrete nature of the processed data respectively. The FFT analysis revealed significant non-symmetrical regimes, as great weights for harmonic orders multiple of 3 were found in the three-phase currents waveforms. Reversed flow of active and reactive powers were noticed. A comparative study of the energies produced by current harmonics was made and discussed. A non-symmetry of the consumer as a whole was detected as well.","PeriodicalId":341783,"journal":{"name":"2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121464386","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}
引用次数: 0
Power Quality Problems that Occur at a Company Producing Electrical Equipment 在生产电气设备的公司发生的电能质量问题
2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF) Pub Date : 2023-06-28 DOI: 10.1109/PQEMC-LF58184.2023.10211289
P. Nicolae, I. Nicolae, M. Nicolae
{"title":"Power Quality Problems that Occur at a Company Producing Electrical Equipment","authors":"P. Nicolae, I. Nicolae, M. Nicolae","doi":"10.1109/PQEMC-LF58184.2023.10211289","DOIUrl":"https://doi.org/10.1109/PQEMC-LF58184.2023.10211289","url":null,"abstract":"The paper presents the problems that arise when supplying a company producing electrical equipment from the electricity network. The distorting regimes that appear affect the operation of the electric power network, inducing new problems of functional nature. For their study, the authors designed and implemented a data acquisition system in order to acquire, record and transmit data on electrical quantities (three-phase voltages and currents) from the secondary winding of the transformer that supplies the company. Data were transferred to a PC running original software developed by authors, implementing analysis modules based on Fast Fourier Transform and Wavelet Packet Transform. Small differences were revealed between power quality indices computed with both methods. The performed analysis revealed significant distortions of the currents absorbed by the analyzed plant. The total current harmonic distortion and weights of the 5-th harmonic exceeded the limits stated by IEEE Std 519-2022 whilst the value of the power factor was lower than the neutral value, being associated to additional consumptions of power / reactive energy, with effect on the penalties to be paid by the company.","PeriodicalId":341783,"journal":{"name":"2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130533625","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}
引用次数: 0
Magnetic and Electric Field Measurement Experiments 磁场和电场测量实验
2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF) Pub Date : 2023-06-28 DOI: 10.1109/PQEMC-LF58184.2023.10211641
V. Voicu, Livia-Andreea Dina, P. Mircea, I. Dumbravă
{"title":"Magnetic and Electric Field Measurement Experiments","authors":"V. Voicu, Livia-Andreea Dina, P. Mircea, I. Dumbravă","doi":"10.1109/PQEMC-LF58184.2023.10211641","DOIUrl":"https://doi.org/10.1109/PQEMC-LF58184.2023.10211641","url":null,"abstract":"The paper presents a study on the degree of electromagnetic field exposure of workers in electric power distribution stations. For this purpose, they performed a series of tests on electricity transmission cables used in transformer stations. Based on the results obtained from the experimental testing carried out, the levels of exposure to the influences of the electric and magnetic fields existing in the area where these cables are located were determined. This study is of interest because the maximum limits are regulated by Decision of the Romanian government HG 520/2016 of July 20, 2016 and Directive 2013/35/EU of the European Parliament and of the Council of 26 June 2013. So, the comparison of the maximum limits allowed in the standard with the measured values is considered. As a result of these comparisons, it is desired, if necessary, to establish additional methods of protecting personnel from exposure to electromagnetic fields at work. It is also considered, the realization of a simulation of the tested conductors for a complete analyze. It is well known that modeling and simulation represent the most efficient way of optimization considering the cost-benefit ratio.","PeriodicalId":341783,"journal":{"name":"2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129972055","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}
引用次数: 0
PQEMC-LF 2023 Cover Page PQEMC-LF 2023封面页
2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF) Pub Date : 2023-06-28 DOI: 10.1109/pqemc-lf58184.2023.10211690
{"title":"PQEMC-LF 2023 Cover Page","authors":"","doi":"10.1109/pqemc-lf58184.2023.10211690","DOIUrl":"https://doi.org/10.1109/pqemc-lf58184.2023.10211690","url":null,"abstract":"","PeriodicalId":341783,"journal":{"name":"2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131184697","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}
引用次数: 0
Ultra-wideband Received Signal Strength Analysis for UAV Indoor NLOS Navigation 无人机室内NLOS导航的超宽带接收信号强度分析
2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF) Pub Date : 2023-06-28 DOI: 10.1109/PQEMC-LF58184.2023.10211601
Cristian Vidan, Georgiana-Florentina Ivănescu, T. Grigorie
{"title":"Ultra-wideband Received Signal Strength Analysis for UAV Indoor NLOS Navigation","authors":"Cristian Vidan, Georgiana-Florentina Ivănescu, T. Grigorie","doi":"10.1109/PQEMC-LF58184.2023.10211601","DOIUrl":"https://doi.org/10.1109/PQEMC-LF58184.2023.10211601","url":null,"abstract":"It is expected that drones will revolutionize and guide the future progress of the aerospace industry, as they are currently used to successfully complete diverse and complex missions, in both military and civilian environments. In order to carry out their missions safely, unmanned aerial vehicles require reliable and robust navigation systems. In this paper, the feasibility of an ultra-wideband (UWB) indoor positioning system will be tested and demonstrated, with the purpose of enabling drone navigation during search and rescue missions in GNSS-denied areas, such as the inside of buildings that were affected by earthquakes or other man-made calamities. The strength of the UWB (ultra-wideband) signals in non-line-of-sight (NLOS) and hard NLOS conditions was tested. The obtained results are pivotal in deciding whether UWB technology is advanced enough to guarantee the safe completion of indoor missions, without the aid of further navigation sensors.","PeriodicalId":341783,"journal":{"name":"2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132187506","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}
引用次数: 0
Power Quality Impact of Electric Buses’ Charging 电动客车充电对电能质量的影响
2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF) Pub Date : 2023-06-28 DOI: 10.1109/PQEMC-LF58184.2023.10211420
D. Rusinaru, P. Mircea, G. Buzatu
{"title":"Power Quality Impact of Electric Buses’ Charging","authors":"D. Rusinaru, P. Mircea, G. Buzatu","doi":"10.1109/PQEMC-LF58184.2023.10211420","DOIUrl":"https://doi.org/10.1109/PQEMC-LF58184.2023.10211420","url":null,"abstract":"Given the uncertainty regarding the adoption rates of electric vehicles (EV), as well as the evolution of the transport market as a result of the lack of legislation and supporting programs, as well as the types of mobility and charging infrastructure solutions, forecasting the impact of electric vehicles on the distribution grid can be challenging. It would be beneficial for grid operators to have a solid understanding of these issues once e-mobility becomes more prevalent. This paper addresses issues related to the estimated impact of large-scale implementation of electric vehicles on the power quality in Romanian power distribution system. Here are analyzed power quality parameters measured in the power distribution grid during the charging process of the electrical buses belonging to the local public transportation fleet. The results of this study are supporting the further actions designated to improve the power quality in the distribution systems, and to allow a higher integration of the EV by avoiding grid’s reliability problems and costly reinforcements.","PeriodicalId":341783,"journal":{"name":"2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116349463","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}
引用次数: 0
Effects of Inrush Current on Operating Transformers when the Series Resonance Condition is Met 满足串联谐振条件下励磁涌流对运行变压器的影响
2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF) Pub Date : 2023-06-28 DOI: 10.1109/PQEMC-LF58184.2023.10211750
M. Niţu
{"title":"Effects of Inrush Current on Operating Transformers when the Series Resonance Condition is Met","authors":"M. Niţu","doi":"10.1109/PQEMC-LF58184.2023.10211750","DOIUrl":"https://doi.org/10.1109/PQEMC-LF58184.2023.10211750","url":null,"abstract":"Inrush current often affects the quality of the power system and can interfere with the operation of sensitive electrical loads. In recent decades, studies have focused on controlling this transient current. This paper presents a case study conducted on an in-service transformer where both external and internal electric discharges occurred after several energization maneuvers. The cause of these phenomena has been identified and corrective action has been taken.","PeriodicalId":341783,"journal":{"name":"2023 Power Quality and Electromagnetic Compatibility at Low Frequency (PQEMC-LF)","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122813902","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}
引用次数: 0
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