Using circuit elements to represent the distributed parameters of a grounding system under lightning strokes
| Autor: | Claudiner Mendes de Seixas, Sérgio Kurokawa |
|---|---|
| Přispěvatelé: | Federal Institute of São Paulo – IFSP, Universidade Estadual Paulista (Unesp) |
| Rok vydání: | 2019 |
| Předmět: |
Emtp
Computer science 020209 energy Energy Engineering and Power Technology 02 engineering and technology law.invention Domain (software engineering) Frequency response Transmission line law 0202 electrical engineering electronic engineering information engineering Electronic engineering Grounding systems Time domain Electrical and Electronic Engineering Electrical impedance Circuit synthesis Ground 020208 electrical & electronic engineering Impedance Electrical element Earthing system Frequency domain Lightning strokes Transient (oscillation) Resistor |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 0378-7796 |
| DOI: | 10.1016/j.epsr.2019.03.013 |
| Popis: | Made available in DSpace on 2019-10-06T17:06:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-07-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) This work presents a proposal to represent electrical grounding systems directly in the time domain. The advantage in using this type of representation is that voltage and current are better understood in this domain, and the model can easily be inserted into conventional software such as the Alternative Transient Program (ATP). The proposed method is applied to horizontal electrodes, vertical rods and grounding grids. The grounding is initially modelled in the frequency domain to obtain harmonic impedance, which is then represented by means of an approximation in the time domain, by passive elements (resistors, inductors and capacitors) associated in series and/or parallel. Validation was achieved by comparing the results with those obtained using the TLM (transmission line model), the HEM (hybrid electromagnetic model) and technical literature. The TLM and HEM were used to obtain the harmonic impedance of the grounding systems, but any other model could have been used, since this process has no effect on the proposed method, making the proposed method very versatile and attractive. Federal Institute of São Paulo – IFSP, Av. Jerônimo Figueira da Costa, 3014, Pozzobon São Paulo State University (UNESP) School of Natural Sciences and Engineering, Av. Brasil, Centro, 56 São Paulo State University (UNESP) School of Natural Sciences and Engineering, Av. Brasil, Centro, 56 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect