Evaluation of performance parameters of PV modules deployed outdoors

被引：58

作者：

Gxasheka, AR

van Dyk, EE

Meyer, EL

机构：

[1] Univ Port Elizabeth, Dept Phys, ZA-6031 Port Elizabeth, South Africa

[2] Univ Ft Hare, Dept Phys, ZA-5700 Alice, South Africa

来源：

RENEWABLE ENERGY | 2005年 / 30卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

photovoltaic modules; current-voltage characteristics; performance monitoring; I-V monitoring system; operational efficiency;

D O I：

10.1016/j.renene.2004.06.005

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper evaluates the performance parameters of five photovoltaic (PV) modules comprising crystalline silicon, multi-crystalline silicon and edge-defined film-fed growth (EFG) silicon technologies. This evaluation was accomplished by measuring and analysing the modules' performances during initial, intermediate and final stages of a 17-month test period. The effect of temperature and irradiance on the performance parameters was investigated. Results obtained indicate that some modules exhibited shunting behaviour and that the EFG silicon module experienced moisture ingress, which in part, resulted in 14% performance degradation. An analysis of the results revealed that the moisture ingress effectively reduced the active module area, resulting in reduced photon absorption, consequently reducing the electron-hole generation as indicated by the reduced short-circuit current. In addition, the EFG-Si module's shunt resistance appeared to decrease over the test period. The rest of the modules showed relatively stable performance, information that is crucial to the system designer and consumer. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：611 / 620

页数：10

共 14 条

[1]

GLICK SH, 2001, DEAC3699GO10337 NREL

[2]

GXASHEKA AR, 2003, THESIS U PORT ELIZAB, P64

[3] Temperature coefficients for PV modules and arrays: Measurement methods, difficulties, and results [J].

King, DL ;

Kratochvil, JA ;

Boyson, WE .

CONFERENCE RECORD OF THE TWENTY SIXTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1997, 1997, :1183-1186

[4]

Mazer, 1997, SOLAR CELLS INTRO CR, P108

[5] Cell shunt resistance and photovoltaic module performance [J].

McMahon, TJ ;

Basso, TS ;

Rummel, SR .

CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996, 1996, :1291-1294

[6] Assessing the reliability and degradation of photovoltaic module performance parameters [J].

Meyer, EL ;

van Dyk, EE .

IEEE TRANSACTIONS ON RELIABILITY, 2004, 53 (01) :83-92

[7]

MEYER EL, 2002, THESIS U PORT ELIZAB, P73

[8]

MEYER EL, 2000, P 16 EUR PV SOL EN C, P2272

[9] Commonly observed degradation in field-aged photovoltaic modules [J].

Quintana, MA ;

King, DL ;

McMahon, TJ ;

Osterwald, CR .

CONFERENCE RECORD OF THE TWENTY-NINTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE 2002, 2002, :1436-1439

[10]

SCHRODER DK, 1998, SEMICONDUCTOR MAT DE, P208

← 1 2 →