Figure 5 – “Information rich” data for PITOPS PID
tuning method
PITOPS identification method is not sensitive to oscillatory data
containing PV overshoots or undershoots (as observed on the left
side of Figure 5 ). PITOPS identification doesn’t require any data
conditioning, which mostly refers to: removing outliers from data, data
filtering, generating more data due to data missing points, data
resampling methods and others which are typically needful when using
old-fashion approaches. For better understanding which kind of data
behavior PITOPS can easily handle, the PID was deliberately moved
several times with a different behavior (SP step change, SP ramp
change, OP step change and oscillatory cascade mode ).