Electrical Connection SMA Solar Technology AG
50 SMC9-11TLRP-IEN100640 Installation Guide
5.9 Reactive Power and Grid Management
Sunny Mini Central units 9000TL / 10000TL / 11000TL with Reactive Power Control are reactive
power-compatible inverters and can feed in reactive power by entering a shift factor (cos ϕ). These
inverters are also equipped with advanced grid management functions for output control, which can
be activated and configured in accordance with the requirements of the utility operator.
The configuration parameters are protected by the SMA Grid Guard Code password. However, they
can only be accessed at the installer level. To set all parameters you need a personal SMA Grid
Guard Code and the installer password. The application form for the SMA Grid Guard Code is
located in the download area at www.SMA.de/en, in the "Data sheet" category for each inverter.
The installer password can be obtained from the SMA Serviceline upon request. Confirm the changes
to these parameters with your utility operator.
With the procedures described below, you can select different settings in which additional
configuration parameters can be set.
5.9.1 Setting the Displacement Power Factor cos ϕ
The "Q-VArMod" parameter allows you to select the reactive power process for the Sunny Mini
Centrals with Reactive Power Control. 3 settings can be selected.
The displacement power factor (cos ϕ) can be specified by setting a software parameter for the
corresponding device (Mode 1) or transmitted to multiple devices via the Sunny WebBox in
combination with the Power Reducer Box (Mode 2).
The factory setting for the displacement power factor is cos ϕ = 1 (Mode 1).
Procedures and Configuration Parameters
Configuration Options for "PFCnst"
Default settings
In the table below, default settings are marked with *.
Procedure Setting Description
Q-VArMod PFCnst* Mode 1: Constant displacement power factor cos ϕ.
PFCtlCom Mode 2: Displacement power factor is transferred by
communication via Power Reducer Box.
Off The process is deactivated.
Setting Parameters Description Value range Default
PFCnst PF-PF Displacement power factor
specification cos ϕ (Mode 1).
0.8 ... 1 1
PF-PFExt Type of excitation of the
displacement power factor cos
ϕ (Mode 1).
Underexcited,
overexcited
Underexcited
To Next Page
Loading...
