REMOVAL OF THE HOT-SPOT PROBLEM IN PHOTOVOLTAIC MODULES AND ARRAYS

被引：12

作者：

BHATTACHARYA, G

NEOGY, C

机构：

[1] Department of Physics, University of Kalyani, Kalyani

来源：

SOLAR CELLS | 1991年 / 31卷 / 01期

关键词：

Heat Transfer - Conduction - Optimization - Applications - Semiconductor Diodes - Applications - Solar Cells;

D O I：

10.1016/0379-6787(91)90002-7

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

High power photovoltaic generators are installed nowadays. Reliability of continuous operation of this system is the prime consideration. Shadowing and thermal disequilibrium are the major constraints. Shadowing is the normal event in a photovoltaic system, causing thermal disequilibrium which produces excess heat at the shadowed cell. A shunt diode across the string is the most practical solution at present to prevent the excess power acceptance in the shadowed portion of the array. In this work, a theoretical relation has been developed by which an exact number of series-connected solar cells that is clamped by a single diode can be calculated in the worst-case condition. A numerical example is also given on the basis of the proposed model. An optimization of the value of shunt resistance is also proposed by this approach, below which no shunt diode protection is needed for the cell.

引用

页码：1 / 12

页数：12

共 7 条

[1]

Arnett J. C., 1981, Fifteenth IEEE Photovoltaic Specialists Conference - 1981, P1099

[2]

LASNIEN F, 1984, 3RD AS SCH SOL EN HA

[3]

RAUSCHENBARCH HS, 1980, SOLAR CELL ARRAY DES

[4]

Roger J. A., 1982, Fourth E.C. Photovoltaic Solar Energy Conference. Proceedings of the International Conference, P301

[5]

Spirito P., 1982, Fourth E.C. Photovoltaic Solar Energy Conference. Proceedings of the International Conference, P296

[6]

STULTZ JW, 1977, NASA510131 PROJ REP

[7] EFFECT OF SHUNT RESISTANCE AND BYPASS DIODES ON THE SHADOW TOLERANCE OF SOLAR-CELL MODULES [J].

SWALEH, MS ;

GREEN, MA .

SOLAR CELLS, 1982, 5 (02) :183-198

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