Operation modes of the reactive power controller
The eReactiveMode
process data input under the Targets controls the selection of operation mode for the reactive power controller (see DataAreas). The following modes are available:
Default
:
The setpoint is specified by the static parameterReactiveTargetDefault
.Normal
:
The setpoint comes dynamically fromfReactivePowerSet
and is processed by the controller.Slave
:
InSlave
mode, the reactive power controller operates as a subordinate controller. ThefReactivePowerSet
setpoint is passed directly to the PI controller and bypasses the rise limitation so that the specification is implemented without delay.Bypass
:
InBypass
mode, the reactive power controller including rise limitation is bypassed.
The following extended control modes are also available:
ByCosPhi
:
Reactive power control with CosPhi displacement factor (see ReactiveByCosPhi)ByVoltage
:
Voltage characteristic curve Q(U) (see ReactiveByVoltage)ByVoltageLim
:
Voltage-dependent reactive power limitation Q(Ulim) (see ReactiveByVoltageLim)ByActive:
Active power characteristic curve Q(P) (see ReactiveByActive)ByActiveCosPhi
:
CosPhi(P) characteristic curve according to EN standard (see ReactiveByActive)
These operation modes can be switched dynamically, e.g. via a telecontrol interface of the grid operator (see Setpoint specifications). Switching takes place in compliance with the transition behavior and filter parameters required by the standard (e.g. ReactiveTargetFilterTime
, ReactiveTargetFilterType
, see ReactivePower).