FCAS

FCAS is used to regulate the grid connection frequency of the plant. It responds to grid frequency fluctuations according to set frequency regulation parameters to maintain system stability.

  1. Choose Energy management > FCAS.
  2. Set Function enable/disable.
    • Enable: Enable the function.
    • Disable: Disable the function.
  3. Set the Function effectiveness mode.
    • Effective during overfrequency: The function is effective only during overfrequency.
    • Effective during underfrequency: The function is effective only during underfrequency.
    • Effective during overfrequency and underfrequency: Default mode. The function is effective during both overfrequency and underfrequency.
    Note: The firmware version of EMS300CP must be P024 or later.
  4. Configure the frequency regulation parameters on the right. The descriptions of the parameters are shown below:

    Parameter

    Description

    		Value

    fN (Hz)

    Rated frequency at grid connection point

    		Default value: 50.000.

    fd (Hz)

    Frequency regulation deadband

    		Default value: 0.150. When the frequency is within the range of fN (Rated frequency at the grid connection point)±0.150, the frequency regulation strategy does not respond.

    PA (MW)

    Max. output active power

    		Range: [0, 9999.99]. Default value: 50.00. Set this parameter according to actual conditions.

    PB (MW)

    Max. active power absorbed

    		Range: [0, 9999.99]. Default value: 50.00. Set this parameter according to actual conditions.

    fm (Hz)

    Frequency deviation threshold for full-scale response

    		The critical value that triggers the maximum power output/absorption response. Default value: 0.500.
  5. Click Apply settings. In the pop-up window, enter the Task name, and click Confirm.