Technical criteria for wind farm power stations connected to the transmission system - Wind Power Integration: Connection and System Operational Aspects - page 279

Control Set-Point Ramp Rate . For the avoidance of doubt
nothing in this CC .S2.3.7(d) shall be construed as requiring
a Controllable WFPS to operate beyond its technical limits.

(e) Upon removal of an Active Power Dispatch Instruction

sent by the TSO via SCADA when the WFPS is operating
in an Active Power control mode and under normal opera-
tional conditions, the WFPS shall ramp at the Normal Wind
Following Ramp Rate .

(f) The Ramp Rate requirements for WFPSs need not be met

in the case of wind speed falling at a greater rate than that
which would be required to control the Output to be within
the Ramp Rate .

(g) In the absence of a TSO Dispatch Instruction , each Gen-

erating Unit comprising a Controllable WFPS must oper-
ate as per the power curve submitted to the TSO and remain
Connected to the System between the Generating Unit cut-
in speed and cut-out speed.

CC.S2.4 Black Start Capability

A WFPS is not required to provide Energy to any part of the
System during the process of restoration of power following a
Black Start and therefore does not require a Black Start Cap-
ability . For the avoidance of doubt a WFPS will be disconnected
from the System during Black Start conditions until the System
is restored to a stable operating mode, as determined by the TSO .

CC.S2.5 WFPS Control Arrangements

CC.S2.5.1 Each Controllable WFPS must be capable, in accordance with

CC .S2.5.2 and CC .S2.5.3, of contributing appropriately, as rea-
sonably specified by the TSO ,to Frequency and voltage by
continuous modulation of Active and Reactive Power supplied to
the Transmission System .

CC.S2.5.2

(a) Each WFPS must be fitted with a 'Fast Acting' proportional

wind power governor to provide Frequency Control under
normal operational conditions.
'Fast Acting' here means that the WFPS shallrampatthe
Frequency Response Ramp Rate ,which Ramp Rate shall be:

1. the maximum ramp of the WFPS and as a minimum

shall be the Primary Response capability of the WFPS
(available in 5 seconds and sustained to 30 seconds):
60% of expected MW Output value based upon droop