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Sampling Rate Impact on Estimation of Untransposed Transmission Line Parameters Based on Fault Records

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Abstract

This paper highlights the sampling rate impact over an estimation method based on modal analysis techniques applied on untransposed three-phase transmission line. The analysed method represents a transmission system in the modal domain as three independent propagation modes that are modelled as three single-phase transmission lines using a suitable \(\pi \) equivalent. The estimation procedure is carried out in the modal domain, without the explicit modelling of the phase mutual parameters, which means a significant simplification on the calculation process using the least-square solution method. Since the modal parameters are identified, the self- and mutual parameters can be calculated using the same modal transformation matrix during the line decoupling. The method estimation accuracy is evaluated for a range of sampling rate associated with the relays records.

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Acknowledgements

The São Paulo Research Foundation (FAPESP, Proc. 13/00974-5)

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Authors and Affiliations

  1. Escola Politécnica, Universidade de São Paulo, São Paulo, SP, Brazil

    Eduardo C. M. da Costa, Renato M. Monaro & Silvio G. Di Santo

  2. Faculdade de Engenharia de Ilha Solteira, Universidade Estadual Paulista, Ilha Solteira, SP, Brazil

    Sergio Kurokawa

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  1. Eduardo C. M. da Costa
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  2. Sergio Kurokawa
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  3. Renato M. Monaro
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  4. Silvio G. Di Santo
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Correspondence to Renato M. Monaro.

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da Costa, E.C.M., Kurokawa, S., Monaro, R.M. et al. Sampling Rate Impact on Estimation of Untransposed Transmission Line Parameters Based on Fault Records. J Control Autom Electr Syst 29, 391–398 (2018). https://doi.org/10.1007/s40313-018-0378-7

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  • DOI: https://doi.org/10.1007/s40313-018-0378-7

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