Analysis of online capacitor switching transient voltages on experimental MV cables

Pushpanathan, B.; Grzybowski, S.

doi:10.1109/ichve.2014.7035416

Cited by 5 publications

(3 citation statements)

References 6 publications

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“…The monitoring signals and frequency range which own large frequency sensitivities will be selected for parameter identification. From the sensitivity curves as shown in this figure, according to the selection principle and considering this method will extract the relative permittivities of the three phases at the same time, the selected monitoring signals are exhibited in (15), and the frequency range is selected as 10~15kHz.…”

Section: Selection Of the Monitoring Signals And Frequency Rangementioning

confidence: 99%

“…By using the solution of the cross-bonded cable model in (12) with selected signals in (15), the optimization problem can be written as following: and it can be calculated by the measurements in M2 and the transfer matrix T. Here T(n,:) represents the n th row of matrix T, which relates to the corresponding selected signal.…”

Section: Selection Of the Monitoring Signals And Frequency Rangementioning

confidence: 99%

“…For instance, through simulation studies, [14] observed the behavior of the transient waveforms of the cable were significantly influenced by the cable insulation parameters. A neural network-based method that compared the frequency spectrum features of the transient voltages of the cables was proposed in [15]- [16], and it successfully identified the aged cables from the new ones under capacitor switching. However, the cross-bonded cable is not included in these research studies, and the potential of the transient disturbances requires further investigation.…”

Section: Introductionmentioning

confidence: 99%

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Transient Disturbances Based Non-Intrusive Ageing Condition Assessment for Cross-Bonded Cables

Yang

Luo

et al. 2020

IEEE Access

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The cross-bonding is the most common shield/sheath-bonding system now in use on singleconductor shielded power cables for long distance power transmission. But the complex bonding brings great challenges to the assessment of cable ageing conditions. This paper proposes a non-intrusive ageing assessment method using the transient disturbances originating from the system. The cable relative permittivities, instead of the traditional dielectric loss angle, were extracted from the responses of the transient disturbances to character the ageing state more sensitively. The decoupling analysis of the crossbonded cable and the corresponding relative permittivity identification model were investigated. Since the transient disturbances appear naturally and frequently, a continuous tracking of the cable ageing conditions can be established without interferences to the power system. Moreover, only the magnitudes rather than the phase angles of the cable currents/voltages are required in this method, which effectively simplifies the functions of the signal acquisition devices. The proposed method provides a new idea to assess the ageing conditions of the cross-bonded cables, and has the potential to be applied in industry. INDEX TERMS cross-bonded cable, ageing, transient disturbances, non-intrusive

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Section: Selection Of the Monitoring Signals And Frequency Rangementioning

confidence: 99%

Section: Selection Of the Monitoring Signals And Frequency Rangementioning

confidence: 99%