Fronius Symo GEN24 10.0, Руководство по эксплуатации, Страница: 100 / 120

Safety and grid requirements
Dynamic power
reduction DNO or grid operators may stipulate feed-in limitations for an inverter (e.g. max. 70% of
kWp or max. 5 kW).
Dynamic power reduction takes account of self-consumption by the household before the
power of an inverter is reduced:
-
A custom limit can be set.
- A Fronius Smart Meter can be connected to the Modbus push-in terminal of the data
communication area at the connections M0/M1- / M0/M1+ for Modbus data.
With the inverter, any PV power that is not allowed to be fed into the grid is used to
charge the battery instead so that it does not go to waste. Dynamic power reduction is
only activated if the battery is full or cannot be charged for some other reason.
" Limit for entire system " - The entire PV system is limited in accordance with a set
power limit. If this setting is disabled, the entire available PV
‑
power is converted and fed
into the grid.
Field for entering the total DC system power in Wp
This value serves as a reference for the rule and also for failures (e.g. a meter failure).
Field for entering the max. power in W or % (up to two decimal places, negative values
can also be entered)
If no meter has been selected under the "Meter" menu item:
Max. power produced by the entire system.
If "Fronius Smart Meter" or S0 inverter has been selected under the "Meter" menu item:
max. grid power feed
Example: Dynamic power reduction
(efficiency values have not been taken into account)
PV system on Fronius inverter: 5000 W
Consumption in home: 1000 W
Max. grid power feed: 60% =
3000 W
Case 1: The battery can be charged
Power at grid feed-in point: 0 W
Power at inverter output: 1000 W
Power into the battery: 3000 W
Case 2: The battery cannot be charged
Power at grid feed-in point 3000 W
Power at inverter output: 4000 W
Power into the battery: 0 W
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