Calculate droop-based frequency response from solar PV and battery systems for grid frequency regulation.
Input Parameters
Results
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Droop Response
MW
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Response Rate
MW/Hz
--
Available Headroom
MW
--
Regulation Capacity
MW
Note: Standard droop setting is 4-5%. Solar must curtail output to provide upward frequency response (headroom). Battery hybrid systems can provide symmetric regulation without curtailment.
Reference
df(pu) = Freq Deviation / Nominal Freq
Droop Response = (df_pu / Droop%) x Rated Power
Response Rate = Rated Power / (Droop x f_nom) [MW/Hz]
Headroom = Rated Power x Headroom%
Regulation Capacity = min(Droop Response, Headroom)