blue’Log X series
99 | 120
14.4.9
Q(U) procedure
In this procedure the percentage reactive power Q is used as control value.
By changing the reactive power, it is possible to influence the voltage by recording the
voltage U at the grid connection point by the selected measuring device and
transferring the data to the data logger. The logger then assigns the Q control value to
the relevant voltage, for example on basis of a two-point characteristic curve.
Depending on the selected characteristic curve type, value pairs (interpolation points)
and the associated excitation types per interpolation point are needed in order to
produce the characteristic curve for this procedure.
Fig. 80: Q(U) Power Control procedure: 2 point with hysteresis
