|PID Tuner Version||V2.0.1|
The figure below shows how the identified model fits to the measured data.
The model used to fit the data:
The fitted model parameters are shown in the following table.
Based on the model as identified in Chapter 1, the optimal PID settings are shown in the following table.
|#||Old Settings||PID Tuner Settings|
|Tuning Method||_________||SIMC PID|
The figure below shows the expected PID output vs. the measured PID output. The data shown is collected right after the bump-test
The PID equation used:
The figure below shows the measured response to a change in setpoint using the old vs. the new PID settings.
The figure below shows the measured response during a free-run, using the old vs. the new PID settings.
The standard deviation as calculated from the free-run is shown in the following table:
|#||Old Settings||New Settings|
|Selected MV Unit||Electricity [kWh]|
|Entered Cost/MV||Default (0.22 Euro/kWh)|
Based on a 2-sigma approach, the setpoint could be increased/decreased by 2*(Std Dev Old - Std Dev New) = 1.20
A reduction in SP of 1.2, gives a reduction on MV of SP/K = 1.2/1 = 1.2
The annual cost savings are expected to be 1.2*0.22*365*24 = 2312.64 [Euro/Year]