Table of Contents
Advertisement
Sunny Island 4500
11.7.3 Mixed Single/Three-Phase Systems
In case of different utilizations of the different phases it is even possible to back one
or two of the phases with additional Sunny Islands, each running in single-phase
droop mode.
Make sure that in such systems the device that provides for the cor-
rect angle between the three phases is of redundant dimensioning as
its failure will lead to an uncontrolled shifting of all phases!
It should be strived for a well-balanced existence of loads and sources on each
phase in order to avoid needless and inefficient power transfer between the phases
through the three-phase Sunny Island clusters.
Fig. 11.11: Three-phase system with backup single phase Sunny Islands
BWRI45-13-EE0304
Installation & Operating Instructions
- 174 -
SMA Regelsysteme GmbH
Advertisement
Table of Contents
