New procedure for fault detection in grid connected PV systems based on the evaluation of current and voltage indicators

被引:140
作者
Silvestre, Santiago [1 ]
Aires da Silva, Mario [1 ]
Chouder, Aissa [2 ]
Guasch, Daniel [3 ]
Karatepe, Engin [4 ]
机构
[1] Univ Politecn Catalunya UPC BarcelonaTech, Dept Elect Engn, MNT Grp, Barcelona 08034, Spain
[2] Univ Msila, Fac Technol, Dept Genie Elect, Msila 28000, Algeria
[3] Univ Politecn Catalunya UPC BarcelonaTech, Dept Engn Telemat, EDIFICI EPSEVG VG1, Vilanova I La Geltru 08800, Spain
[4] Ege Univ, Dept Elect & Elect Engn, TR-35100 Izmir, Turkey
关键词
PV systems; Fault detection; Current and voltage indicators; PHOTOVOLTAIC SYSTEMS; PERFORMANCE; SIMULATION; MODEL;
D O I
10.1016/j.enconman.2014.05.008
中图分类号
O414.1 [热力学];
学科分类号
摘要
In this work we present a new procedure for automatic fault detection in grid connected photovoltaic (PV) systems. This method is based on the evaluation of new current and voltage indicators. Thresholds for these indicators are defined taking into account the PV system configuration: number of PV modules included and series and parallel interconnection to form the array. The procedure to calculate the thresholds that allow the identification of the faults is described. A simulation study was carried out to verify the evaluation of current and voltage indicators and their corresponding thresholds for a set of PV systems with different sizes and different configurations of interconnection of PV modules. The developed method was experimentally validated and has demonstrated its effectiveness in the detection of main faults present in grid connected applications. The computational analysis has been reduced and the number of monitoring sensors minimized. The fault detection procedure can be integrated into the inverter without using simulation software or additional external hardware. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:241 / 249
页数:9
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