SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
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SMA Solar Technology AG Additional Functions<br />
80<br />
40<br />
30<br />
Soc [%]<br />
Lod1SocTm2 Stp<br />
t1<br />
Lod1SocTm2 Stp<br />
t2<br />
Lod1SocTm1 Str<br />
t2<br />
0h 6h<br />
Lod1SocTm1 Stp<br />
Lod1SocTm2 Str Lod1SocTm2 Str<br />
Lod1Tm1Str Lod1Tm2Str<br />
22h 24h<br />
The figure shows an example of the settings if the load shedding function at night is to be avoided as<br />
much as possible. From 6:00 a.m. to 10:00 p.m., the load shedding is activated for a state of charge<br />
(SOC) of 40 %, during nighttime (from 10:00 p.m. to 6:00 a.m.). By contrast, the state of charge of<br />
the battery is allowed to go down to 30 % before the load-shedding contactor is activated.<br />
The load shedding function can be assigned a total of two times. In the parameters mentioned above,<br />
the "Lod1" part represents the first assigned function and the "Lod2" part represents a second,<br />
identical function. These two battery state-dependant load-shedding functions allow a step by step<br />
load shedding where different load groups with different SOC values can be defined with different<br />
priorities.<br />
Define the time intervals t1 and t2:<br />
• Starting time t1: with the "242.05 Lod1Tm1Str" parameter, set the start time for t1<br />
(and with it the end of t2).<br />
• Starting time t2: with the "242.06 Lod1Tm2Str" parameter, set the start time for t2<br />
(and with it the end of t1).<br />
• If the time intervals t1 (Lod1Tm1Str) and t2 (Lod1Tm2Str) are consistent with one another,<br />
only t1 will be activated.<br />
Set the battery state of charge at which the time interval t1 or t2 will start/stop:<br />
• The battery state of charge during the t1 interval, the recognition of which will lead to the<br />
load-shedding function being started: Parameter "242.01 Lod1SocTm1Str"<br />
• The battery state of charge during the t1 interval, the recognition of which will lead to the<br />
load-shedding function being stopped: Parameter "242.02 Lod1SocTm1Stp"<br />
• The battery state of charge during the t2 interval, the recognition of which will lead to the<br />
load-shedding function being started: Parameter "242.03 Lod1SocTm2Str"<br />
• The battery state of charge during the t2 interval, the recognition of which will lead to the<br />
load-shedding function being stopped: Parameter "242.04 Lod1SocTm2Stp"<br />
<strong>Technical</strong> <strong>Description</strong> SI<strong>5048</strong>-TB-TEN110340 93