不同直流电弧光谱的比较。国际电弧故障检测器标准发展建议的推导

F. Reil, A. Sepanski, S. Raubach, M. Vosen, E. Dietrich
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引用次数: 6

摘要

2013年初,德国光伏安装数量达到140万套。在最近的研究中,TÜV莱茵与Fraunhofer ISE和几个行业合作伙伴进行了为期3年的研发项目,发现了大约75个光伏系统通过电弧故障或热点引起火灾的案例。在这些已知事故中,65起造成重大损失,10起故障导致系统和建筑物全部损失。这些数字表明,由电弧故障引起的火灾事件是少数,但每一个案例都表明,当安装或产品应用缺陷时,存在潜在的风险。本文重点研究了不同电弧噪声谱的定性,根据电极触点、触点材料、隐含式光伏太阳能模拟器、光伏阵列或电弧是否在短路中点燃或与负载电阻甚至逆变器串联而显示出不同的特征。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparison of different DC Arc spectra — Derivation of proposals for the development of an international arc fault detector standard
The number of German PV installations reach in early 2013 1.4 million systems. On the basis of recent research which was carried out within a 3 year R&D-project of TÜV Rheinland with Fraunhofer ISE and several industry partners, around 75 cases were found where a PV system caused a fire through arc faults or hot spots. Out of these known incidents, 65 cases caused major damage whereas 10 faults lead to total loss of the system and building [1]. These numbers display that fire incidents caused by e.g. arc faults are a minority, but every case reveals that latent risks exist when defective installation or products are applied. This work focuses on the qualification of different arc noise spectra which displays a variety of characteristics depending on the electrode contacts, contact materials, implied PV solar simulator, PV array or whether the arc was ignited in a short circuit or being in series with a load resistor or even the inverter.
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