Analytical description of a series fault on a dc bus

Gattozzi, Angelo L.; Herbst, J.D.; Uriarte, Fabian M.; Hebner, Robert E.

doi:10.1109/isgt.2012.6175801

Cited by 3 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite the complex, chaotic and stochastic nature of arc faults, their general electrical behavior can be conceptualized by means of an equivalent circuit [30]- [32]. Such a circuit is shown in Fig.…”

Section: Series DC Arc Fault Characteristicsmentioning

confidence: 99%

“…Gap opening at constant speed: The opening of a gap at constant speed represents the longitudinal tearing of conductors (connector malfunction or internal mechanical damage), which are well-supported mechanically [34]. In [30], an analysis of voltage and current waveforms for dynamically varying gap lengths was undertaken. The results shown were obtained for a fixed DC source voltage of 680 V, and 175 A load current for a gap opening at a constant speed of 2.54 mm/s.…”

Section: A Mechanical Factorsmentioning

confidence: 99%

“…A study on the impact of gap length on arc voltage in [11], concluded that there exists an overall trend of the arc voltage increasing for larger gap lengths under all load current levels when a range of V and A is considered for supply voltages and load currents, respectively. In [30], it was argued that there is a gap length (or a range of gap lengths) that can sustain stable arcs for an extensive period of time. This was demonstrated experimentally through an arc test with the electrodes held at a fixed gap distance of 6.35 mm.…”

Section: A Mechanical Factorsmentioning

confidence: 99%

“…Gap opening at constant acceleration: Electrodes opening at an accelerated rate may be used to reflect the case Review of DC series arc fault testing methods and capability assessment of test platforms for more-electric aircraft of an energized cable that breaks and falls [37]. Similar to the gap opening at constant speed, an experiment with constant acceleration (9800 mm/s 2 ) was performed in [30]. The relationship between the arc voltage and current was found to be exponential with a much faster arc extinction time (approximately 22 times smaller than the constant speed test).…”

Section: A Mechanical Factorsmentioning

confidence: 99%

“…The relationship between the arc voltage and current was found to be exponential with a much faster arc extinction time (approximately 22 times smaller than the constant speed test). From the experiments performed in [30], it was shown that the extinction gap is dependent on the dynamics of gap opening with the arc extinguishing at a length of 18 mm for the constant speed test and at 700 mm for the constant acceleration test.…”

Section: A Mechanical Factorsmentioning

confidence: 99%

See 4 more Smart Citations

Review of DC Series Arc Fault Testing Methods and Capability Assessment of Test Platforms for More-Electric Aircraft

Psaras¹,

Seferi

Syed

et al. 2022

IEEE Trans. Transp. Electrific.

View full text Add to dashboard Cite

In the new era of increasingly electric aircraft, the need for reliable and safe electrical systems is more important than ever. In addition, the wide scale adoption of DC distribution is considered a key enabling technology for more efficient aircraft operation. In this context, arc fault detection devices have become a topic of interest for the aviation industry with ongoing research to characterize the impact and adequately protect against severe DC series arc faults. Although DC arc faults have been widely investigated for utility applications (such as solar photo-voltaic systems), direct adoption of current practices for validating arc detection devices is not straightforward due to the distinct aircraft operating environment. This paper provides a first of its kind, landscaping exercise of published series arc fault testing based on factors associated with aircraft applications which have the potential to influence the arc characteristics. In addition, an appraisal and associated gap analysis of published arc test platforms is undertaken in order to assess their suitability to support in-depth testing of the impact and mitigation of series arcs within future aircraft DC electrical systems and identify future testing needs in particular to better facilitate a comprehensive performance validation of new arc fault detection devices.

show abstract

Section: Series DC Arc Fault Characteristicsmentioning

confidence: 99%

Section: A Mechanical Factorsmentioning

confidence: 99%