Changing the Automatic Frequency Synchronization in Off-Grid Systems
Qualified person
Automatic frequency synchronization enables the use of clocks which use the power frequency as a timer. The power frequency determines the accuracy of the clock. For power frequencies with constant frequency deviations from the rated frequency, the time indications will become more and more inaccurate. Continuous frequency deviations occur in off-grid systems with generators, for example. If the automatic frequency synchronization is activated, the Sunny Island regulates the frequency deviations over time. As a result, the accuracy of clocks that use the power frequency as timers is increased.
The basic procedure for changing operating parameters is explained in another section ( > Changing Operating Parameters).
Procedure:
- Select AC Side > Operation.
- To deactivate automatic frequency synchronization, set the parameter Automatic frequency control to Disable.
- To activate automatic frequency synchronization, set the parameter Automatic frequency control to Enable.