Issue2884 pid autotuning

[mwetter]

This merges the PID autotuning to the master.

[mwetter]

@SenHuang19: This requires considerable more work. Please also see the email I sent.

[JayHuLBL]

@SenHuang19 Run the model Buildings.Fluid.HeatExchangers.Examples.WetCoilCounterFlowPControlAutoTuning, we have the results as below:

It seems that although the tuning process is triggered at 100 seconds and 2100 seconds, the control gain con.con.k and con.con.Ti constantly equal the start values. Could you please double check the results?

[SenHuang19]

@SenHuang19 Run the model Buildings.Fluid.HeatExchangers.Examples.WetCoilCounterFlowPControlAutoTuning, we have the results as below: It seems that although the tuning process is triggered at 100 seconds and 2100 seconds, the control gain con.con.k and con.con.Ti constantly equal the start values. Could you please double check the results?

@JayHuLBL Before merging the master branch, the results appear to be fine. I will thoroughly review it.

[SenHuang19]

@SenHuang19 Run the model Buildings.Fluid.HeatExchangers.Examples.WetCoilCounterFlowPControlAutoTuning, we have the results as below: It seems that although the tuning process is triggered at 100 seconds and 2100 seconds, the control gain con.con.k and con.con.Ti constantly equal the start values. Could you please double check the results?

@JayHuLBL Before merging the master branch, the results appear to be fine. I will thoroughly review it.

@JayHuLBL

• The control gains, con.con.k and con.con.Ti, remain constant at the initial values because the first tuning attempt fails, as detailed in the log file.
• The failure of the initial tuning is due to recent modifications to the valve, which appear to reduce the delay effects.
• I made several adjustments to the example to ensure it works, including minor changes to the valve parameters and those of the relay controllers (see Issue2884 pid autotuning #4054) based on the updated response.

[JayHuLBL]

The CI test is failing with error as below:

rCheck = checkModel("Buildings.Fluid.Movers.Validation.ControlledFlowMachineDynamic");
Pedantic check of Buildings.Fluid.Movers.Validation.ControlledFlowMachineDynamic
-------------------------------------------------
Error: the model is too complex for the current license.
Your license must be upgraded to handle this model.
-------------------------------------------------
Error: ERRORS have been issued.
Declaring variable: Boolean rCheck ;

[mwetter]

The error with the license check occasionally occurs when the license manager takes too long to start and in the meantime Dymola proceeded without checking out the license. Restarting the CI tests helps.

[JayHuLBL]

@mwetter Thanks! It now passed the test. I will have another look and then let you know if it is ready for your review.