Field Trials for the Empirical Characterization of the Low Voltage Grid Access Impedance From 35 kHz to 500 kHz
| Autor: | Itziar Angulo, D. de la Vega, Igor Fernandez, Amaia Arrinda, Asier Llano, Noelia Uribe-Pérez |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
General Computer Science
Computer science Impedance measurement electric variables measurement 02 engineering and technology Radio spectrum law.invention Transmission line measurements law 0202 electrical engineering electronic engineering information engineering communication networks General Materials Science Transformer Electrical impedance Communication channels business.industry Focused Impedance Measurement 020208 electrical & electronic engineering transmission line measurements General Engineering Electromagnetic compatibility Electrical engineering 020206 networking & telecommunications 500 kHz Telecommunications network measurement techniques Electromagnetic Electric variables measurement Communication networks Measurement techniques communication channels lcsh:Electrical engineering. Electronics. Nuclear engineering Low voltage grid business lcsh:TK1-9971 |
| Zdroj: | IEEE Access, Vol 7, Pp 85786-85795 (2019) TECNALIA Publications Fundación Tecnalia Research & Innovation |
| ISSN: | 2169-3536 |
| Popis: | The access impedance of low-voltage (LV) power networks is a major factor related to the performance of the narrow-band power line communications (NB-PLCs) and, in a wider sense, to electromagnetic compatibility (EMC) performance. Up to date, there is still a lack of knowledge about the frequency-dependent access impedance for frequencies above 9 kHz and up to 500 kHz, which is the band where the NB-PLC operates. The access impedance affects the transmission of the NB-PLC signal, and it determines the propagation of the non-intentional emissions that may disturb other electrical devices, including malfunctioning or reduced lifetime of equipment. This paper presents the results of field measurements of the LV access impedance up to 500 kHz in different scenarios, with measurement locations close to end users and near transformers. The results provide useful information to analyze the characteristics of the LV access impedance, including variation with frequency, ranges of values for different frequency bands, and analysis of specific phenomena. Moreover, the results reveal a diverse frequency-dependent behavior of the access impedance in different scenarios, depending on the grid topology, the number of end users (that is, number and type of connected loads), and the type of transformation center. Overall, the results of this paper offer a better understanding of the transmission of NB-PLC signals and EMC-related phenomena. The authors would like to thank Iberdrola for the availability and the collaboration of authorized staff for carrying out the field trials. |
| Databáze: | OpenAIRE |
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