meteocontrol Power Control 03082012 - en
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7.2.6
Q(AI)
With this procedure, the reactive power Q is used as the control value.
The AI requirement is provided by the energy supplier as an analogue input
signal, e.g. analogue ripple control receiver and connected to the analogue
input of the PCU.
The value is provided by the energy supplier as an analogue input signal
(typically: 4–20mA). The reactive power is calculated from the analogue
value via a linear equation.
The following details are required for the configuration:
•
The value pairs P1 and P2, which are at the end of the line (min and
max).
•
Details in what areas the points are (overexcited or underexcited)
Fig. 33: Curve Q(AI)
Note:
Feedback is provided via the analogue output of the PCU. A
simultaneous use of the analogue input for active/and
reactive power procedures is not possible.