Page 205 - Applied Photovoltaics
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100
parallel
strings
(a)
100
parallel
strings
(b)
10 branches
(c)
Figure 10.6. Possible arrangements of modules in a large solar array, with
placement of diodes to avoid large-scale failure or failure of a single cell (SERI,
1984). (a) Open-circuited cells can reduce output current of an array. (b)
Increasing the degree of paralleling and the number of bypass modes helps
reduce the effects of open circuit defects. (c) An array with blocking diodes for
every branch circuit prevents a defective branch from loading the other branches.
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