Arc Faults in Photovoltaic Systems

Strobl, Christian; Meckler, Peter

doi:10.1109/holm.2010.5619538

Cited by 82 publications

(29 citation statements)

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“…The electrical arcs (EA) that appear in these systems can be a major problem, so it is necessary to supervise such phenomena in the system in order to keep it safe [7].…”

Section: Electrical Arcs In Photovoltaic Panelsmentioning

confidence: 99%

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Applications of Transient Signal Analysis Using the Concept of Recurrence Plot Analysis

Digulescu

Murgan

Ioana

et al. 2016

Springer Proceedings in Physics

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Transient signals are universally characterized by a short duration and a broad spectrum which are often present in various phenomena such as sudden acoustic pressure changes, seismic waves, electrical discharges, etc. In order to efficiently monitor the systems where they happen, it is very important that the signals generated by transient phenomena be detected, located and characterized. This significantly helps to better understand their effects in the given application context. This paper presents new tools derived from the concept of Recurrence Plot Analysis (RPA) and applied on three real applications. Two of the applications concern the detection, localization and characterization of the electrical partial discharges (measured from photovoltaic panels and on electrical cables, respectively). Another application refers to the quantification of the water hammer effect using two acoustic sensors placed on a pipe line.

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“…The electrical arcs (EA) that appear in these systems can be a major problem, so it is necessary to supervise such phenomena in the system in order to keep it safe [7].…”

Section: Electrical Arcs In Photovoltaic Panelsmentioning

confidence: 99%

“…The second application concerns the detection, localization and characterization of electrical arcs generated in photovoltaic panels [6,7]. The need of detection, localization and characterization of the electrical arcs is a growing demand as these systems continue to develop and the environmental conditions still unexpectedly change.…”

Section: Introductionmentioning

confidence: 99%

Applications of Transient Signal Analysis Using the Concept of Recurrence Plot Analysis

Digulescu

Murgan

Ioana

et al. 2016

Springer Proceedings in Physics

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“…2. Shorting the string/array [7][8][9]. This de-energizes the parallel arc-fault by dropping the voltage across the arc gap to zero.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, AFCI manufacturers installing systems at the combiner box or inverter use additional techniques to differentiate series and parallel arc-faults. Options for differentiating these fault types are discussed in [2,[7][8][9] and include: 1. Monitoring voltage or current change when the arc-fault occurs.…”

Section: Introductionmentioning

confidence: 99%

Series and parallel arc-fault circuit interrupter tests.

Johnson¹,

Fresquez²,

Gudgel³

et al. 2013

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While the 2011 National Electrical Code® (NEC) only requires series arc-fault protection, some arc-fault circuit interrupter (AFCI) manufacturers are designing products to detect and mitigate both series and parallel arc-faults. Sandia National Laboratories (SNL) has extensively investigated the electrical differences of series and parallel arc-faults and has offered possible classification and mitigation solutions. As part of this effort, Sandia National Laboratories has collaborated with MidNite Solar to create and test a 24-string combiner box with an AFCI which detects, differentiates, and de-energizes series and parallel arc-faults. In the case of the MidNite AFCI prototype, series arc-faults are mitigated by opening the PV strings, whereas parallel arcfaults are mitigated by shorting the array. A range of different experimental series and parallel arc-fault tests with the MidNite combiner box were performed at the Distributed Energy Technologies Laboratory (DETL) at SNL in Albuquerque, NM. In all the tests, the prototype deenergized the arc-faults in the time period required by the arc-fault circuit interrupt testing standard, UL 1699B. The experimental tests confirm series and parallel arc-faults can be successfully mitigated with a combiner box-integrated solution. 4 ACKNOWLEDGMENTSThis work was funded by the

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“…Therefore, the danger of direct current arc fault seems coming. [1] The existing electric protection protects nothing but overload. However, the arc fault means loss of voltage, which results in the loss of current.…”

Section: Introductionmentioning

confidence: 99%

Research on the Frequency Spectrum of DC Fault Arc

Guo¹,

Qi²,

Gao³

2015

Proceedings of the First International Conference on Information Sciences, Machinery, Materials and Energy

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Abstract.Since direct fault arc current is lower than the normal current value, it cannot be discovered by over-current protection; On the other hand, the arc is so dangerous. Therefore, it's imperative to research on direct current (DC) arc. In this paper, with a large number of current data through experiments of DC arc, we analyze the data with Haar wavelet transform and FIR (finite impulse response) respectively, and then compare the filtered high frequency signal, proving that Haar wavelet transform can help analyze the frequency spectrum of the arc and recognize the characteristics of DC arc.

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Arc Faults in Photovoltaic Systems

Cited by 82 publications

References 1 publication

Applications of Transient Signal Analysis Using the Concept of Recurrence Plot Analysis

Applications of Transient Signal Analysis Using the Concept of Recurrence Plot Analysis

Series and parallel arc-fault circuit interrupter tests.

Research on the Frequency Spectrum of DC Fault Arc

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