Techniques for the diagnosis of oscillatory transients resulting from capacitor bank switching in medium voltage distribution systems

Hoffmann, Alessandra B G; Beuter, Carlos Henrique; Pessoa, André Luiz Santos; Ferreira, L.R.A.; Oleskovicz, Mário

doi:10.1016/j.ijepes.2021.107198

Cited by 8 publications

(2 citation statements)

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“…They can cause the loss (or corruption) of data and physical damage of equipment. Lightning is probably the most damaging type of impulsive transient. Oscillatory transients: They are random processes associated with sudden changes in the steady‐state conditions of electric signals that manifest in the form of decaying oscillations [39, 40]. Notch transients: These are modelled as cyclostationary random processes and are related to a typical disturbance in voltage signals.…”

Section: Problem Formulationmentioning

confidence: 99%

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A DFT‐based method for estimating interharmonics in wind power generation

et al. 2022

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This paper introduces a discrete Fourier transform (DFT)-based method for estimating the amplitudes and frequencies of interharmonics, which arise from the interaction between wind power generators and electric power systems. This method exploits the synergy of choosing signal enhancement, mains frequency estimation, and re-sampling techniques. Consequently, it accomplishes a cost-effective estimation process. The performance results show that signal enhancement and re-sampling techniques are necessary to establish suitable conditions for performing amplitude and frequency estimation. Furthermore, numerical results show that the proposed method, relying on low-cost digital signal processing techniques, offers competitive performance and significant computational complexity reduction compared to a previous DFT-based method.

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Section: Problem Formulationmentioning

confidence: 99%

“…Oscillatory transients: They are random processes associated with sudden changes in the steady‐state conditions of electric signals that manifest in the form of decaying oscillations [39, 40].…”

Section: Problem Formulationmentioning

confidence: 99%