DocumentCode :
2913956
Title :
Effect of installation conditions on the output characteristics of photovoltaic modules
Author :
Akhmad, Kholid ; Belley, Frank ; Kitamura, Akio ; Yamamoto, Fumio ; Akita, Shigeo ; Takakura, Hideyuki ; Okamoto, Hiroaki ; Hamakawa, Yoshihiro
Author_Institution :
Fac. of Eng. Sci., Osaka Univ., Japan
Volume :
1
fYear :
1994
fDate :
5-9 Dec 1994
Firstpage :
730
Abstract :
A systematic investigation has been carried out on the tilt and azimuth angle dependencies of output characteristics of photovoltaic modules. The measurements have been made on some combinations of two prototype modules of poly-Si solar cells, installed at different tilt angles and azimuth angle. Output parameters were measured in the form of I-V characteristics. The analysis of the results shows that: (i) provided output voltage is appropriate to the system operation, no serious problems are likely to arise out of the parallel connection of two modules at different tilt and/or azimuth angles, if protected by blocking diodes; and (ii) in the case of series connection equipped with by-pass diodes, however, the max-power voltage (Vmp) becomes instable if the azimuth angle is 15 degrees or more different from each other. That is because the Vmp drops down to the Vmp level of the higher output-current module
Keywords :
electric current measurement; elemental semiconductors; installation; semiconductor device testing; silicon; solar cell arrays; solar cells; voltage measurement; I-V characteristics; Si; azimuth angle; blocking diodes; by-pass diodes; installation conditions; max-power voltage; measurements; output characteristics; parallel connection; photovoltaic modules; poly-Si solar cells; tilt; Azimuth; Diodes; Performance evaluation; Photovoltaic cells; Photovoltaic systems; Power engineering and energy; Solar power generation; Temperature measurement; Voltage; Wavelength measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Photovoltaic Energy Conversion, 1994., Conference Record of the Twenty Fourth. IEEE Photovoltaic Specialists Conference - 1994, 1994 IEEE First World Conference on
Conference_Location :
Waikoloa, HI
Print_ISBN :
0-7803-1460-3
Type :
conf
DOI :
10.1109/WCPEC.1994.520062
Filename :
520062
Link To Document :
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