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Feed-In Management
Note
The Solar-Log™ needs to be linked to a consumption meter to implement this function.
Please note the instructions in chapter “12.5 External power meters“.
24.3 Reactive Power
The following modes are available from the Feed-in Management | Reactive power menu:
•
Deactivated
•
fixed value cos (Phi) shift factor
•
fixed reactive power in Var
•
variable cos (Phi) shift factor over characteristic curve P/Pn
•
variable reactive power over characteristic curve Q(U) (only Solar-Log 2000 PM+ with Utility Me-
ter)
•
Remote controlled fixed value cos (Phi) shift factor(only Solar-Log™ PM+)
Note!
The active power reduction mode that needs to be implemented for a particular PV plant
is determined by the national laws and guidelines.
The planner and/or installer of your plant or the respective grid operator can provide
you with information regarding the method of reactive power control.
Note!
The feed-in management function is not available for all supported inverters. Prior to
installation please check whether PM+ is supported by the inverters used.
Additional information as well as our inverter database can be found underwww.solar-
log.com/pm+.
Note!
The configuration for reactive power is always emanated from the reference direction,
from the side of the Solar-Log™.
The power companies define the requirements from their point of view. PV plants are
usually defined in the consumption direction (with negative totals).
For more information, refer to http://en.wikipedia.org/wiki/Electric_current#Reference_
direction
Interface assignments section
The inverters with their assigned interfaces that are connected to the Solar-Log™ are displayed in this sec-
tion.
Select the inverter(s) to control and activate it/them.
24.3.1 Reactive power deactivated
When this menu item is selected, reactive power control is deactivated. After that, the controllable inter-
faces can be selected when control is via the Modbus PM or via a PM Profile.
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