PC 2 Flashcards
What are the typical manipulated variables(MV) in DMC?
PID Block, cascade/ Feedfoward control, Setpoint/ratio
Are disturbance variables (DVs) dependent or independent variables?
Independent
Write down the equation for solving future MV’s regression
AªA🔺️MV= A^(t)E
What are typical lengths if prediction horizon and control horizon in terms of time to steady state (TTSS)?
1.5 TTSS and .5 TTSS
What are the benefits of a finite impulse response(FIR) model over a finite step response (FSR) model in terms of testing?
Data slice, unmeasured disturbance allowed
If the equal concern error (ECE) for Cv1 is less than ECW for CV2 and both have the same engineering unit which CV1 is more important?
Cv1
If a variable has a negative cost does steady-state optimization tend to minimize or maximize the variable?
Max
Can move suppression factors be different for different mv’s
Yes