InteliMains
NT
, SW version 3.0
InteliMains-NT-BTB-3.0-Reference Guide.pdf, ©ComAp – June 2013
VOLTAGE GAIN AND VOLTAGE INT SETPOINTS ARE ACTIVE DURING:
synchronization between “left” and “right” buses
See also setpoints: Volt ctrl:Voltage gain and Volt ctrl:Voltage Int
When the Voltage gain is set to zero, this control loop is switched OFF.
7.8.1 PI regulation adjustment
The regulation loops have two adjustable factors: P-factor and I-factor (except angle regulation loop,
which has P-factor only). The P-factor (gain) influences the stability and overshoot of the regulation
loop and the I-factor influences the steady-state error as well as the settling time. See the picture
below for typical responses of a PI regulation loop.
Figure: Typical responses of a PI regulator
For manual tunning of a control loop use following method:
1. Set both the I-factor and P-factor to 0.
2. Increase the P-factor slightly until the system starts to oscillate.
3. Adjust the P-factor back to approx. one half of the value where the oscillations started.
4. Increase the I-factor slightly to achieve optimal resulting response.
NOTE:
It may be helpful to disable issuing the breaker close command when adjusting synchronization loops.
Adjust the setpoint Phase window to 0 to disable it. Adjust the setpoint back to it's original value after
the adjustment is finished.
CAUTION!
Be ready to press emergency stop button in case the regulation loop would start to behave
unacceptable while it is beeing adjusted.
To Next Page
Loading...
Need help?
General
