Live line measurement of untransposed three phase transmission line parameters for relay settings

Kato, M.; Hisakado, Takashi; Takani, H.; Umezaki, H.; Sekiguchi, K.

doi:10.1109/pes.2010.5589579

Cited by 14 publications

(2 citation statements)

References 3 publications

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“…A relatively recent frequency-domain method was proposed for estimation of transmission line parameters of untransposed transmission lines (Kato et al 2010). The method presents an interesting procedure for parameter estimation of two untransposed three-phase transmission lines in parallel based on synchronous measurements of voltage and current at both ends of the lines.…”

Section: Introductionmentioning

confidence: 99%

“…The method presents an interesting procedure for parameter estimation of two untransposed three-phase transmission lines in parallel based on synchronous measurements of voltage and current at both ends of the lines. The two parallel lines are represented as a double-circuit three-phase line that is decoupled into two single lines using modal analysis techniques (Kato et al 2010). This procedure provides accurate results for synchronized phase measurements at both ends in steady state.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Costa

Kurokawa²,

Monaro

et al. 2018

J Control Autom Electr Syst

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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 π 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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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%