SMA DATA MANAGER M Operating Manual page 24

4 Product Overview SMA Solar Technology AG
SMA Smart Connected is activated during registration in Sunny Portal. In order to use SMA Smart
Connected, it is necessary that the product is permanently connected to Sunny Portal and the data
of the operator and qualified person is stored in Sunny Portal and up-to-date.
SMA Smart Connected can only be used in Sunny Portal when this feature is supported by the
inverters.
Grid management services
The product is equipped with service functions for grid management.
Depending on the requirements of the grid operator, you can activate and configure the functions
(e.g. active power limitation) via operating parameters.
The setpoints from the grid operator can either be implemented via open-loop control or closed-
loop control. The setpoints are specified via Modbus, analog or digital signals or manually via the
user interface. The implementation of the setpoints is reported back to the grid operator.
Active power limitation
The setpoint for active power limitation is specified in percent. The total system power is taken as
the reference value. The setpoints are specified via Modbus, analog or digital signals or manually
via the user interface.
Zero export
Some grid operators permit connection of PV systems only on condition that no active power is fed
into the utility grid. The PV energy is therefore consumed exclusively at the place where it is
generated.
When specifications at the point of interconnection are actively controlled, this product enables the
limitation the active power feed-in for the connected SMA inverters and of third-party inverters to
0% as long as these are connected via SunSpec Modbus and support this function.
Reactive power control
The reactive power control can take place through direct parameter settings (Q, cos φ) in the
installation assistant or a variable specification from the grid operator via the Modbus interface or
via analog signals. The reactive power control as characteristic curve function can also be
regulated as a function of the voltage at the point of interconnection Q(V). The values are specified
as a percentage of the maximum AC power. A proper meter for measuring the relevant electrical
variables (V, P, Q) is required at the grid-connection point. A pure voltage measurement is not
sufficient. A suitable energy meter is also required at the point of interconnection for cos φ
specifications in control mode.
Direct selling
A direct marketer can use the product for remotely controlling the system via the built-in direct
marketing interface. In this process, control signals of the direct marketer are transferred to the
system. The function is activated via the user interface of the product.
Licensed Functions
The product has basic functions that are available for all systems. Furthermore, additional licensed
functions can be purchased.
24 EDMM-10-BE-en-27 Operating manual