7 Commissioning
SMA Solar Technology AG
Operating manual
SI44M-80H-13-BE-en-15
76
Range
Explanation of the range and parameters
Behavior of the Sunny Island inverter
C
Deep discharge protection range (BatRes)
This range can only be reached when the utility grid fails.
The
BatRes
range applies to the longest day of the year
with seasonal adjustment (see Section 7.6.4.1,
page 74). If seasonal adjustment is deactivated, the
Ba-
tRes
range is increased accordingly.
If a utility grid is available, the Sunny Island
charges the battery using nominal power
from the utility grid.
Battery > Ranges of application > Minimum width
of deep discharge protection range
D
Deep discharge range (ProtRes)
This range can only be reached when the utility grid fails.
When this range is reached, the Sunny Island
switches off in order to protect the battery.
When the utility grid is available again, the
system must be charged manually.
Battery > Ranges of application > Lower lmt deep
disch. protect range prior shutdown
The following ranges result from the parameter default values:
Range
Lithium-ion battery
Shortest day
7)
Longest day
8)
Shortest day
7)
Longest day
8)
Self-consumption
range
65% to 100%
45% to 100%
30% to 100%
10% to 100%
State of charge
conservation range
60% to 65%
40% to 45%
25% to 30%
5% to 10%
Deep discharge
protection range
10% to 60%
10% to 40%
3% to 25%
3% to 5%
Deep discharge
range
0% to 10%
0% to 10%
0% to 3%
0% to 3%
The following ranges result from deactivating seasonal adjustment with the default values of the parameters:
Range
Lead-acid battery
Lithium-ion battery
Self-consumption
range
65% to 100%
30% to 100%
State of charge
conservation range
60% to 65%
25% to 30%
Deep discharge
protection range
10% to 60%
3% to 25%
Deep discharge
range
0% to 10%
0% to 3%
7)
December 21 (northern hemisphere) or June 21 (southern hemisphere)
8)
June 21 (northern hemisphere) or December 21 (southern hemisphere)
