Why would an Engineer consider combining FEEDBACK and FEEDFORWARD control in s

Why would an Engineer consider combining FEEDBACK and
FEEDFORWARD control in some applications?

Question Posted / slyabi

4 Answers
8034 Views
Jindal, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Why would an Engineer consider combining FEEDBACK and FEEDFORWARD control in some applications?..

Answer / gonzales

In boiler when tripple element controlling required

Is This Answer Correct ?

4 Yes

2 No

Why would an Engineer consider combining FEEDBACK and FEEDFORWARD control in some applications?..

Answer / nikhil

In some applications, the compensation provided by feedback control is not sufficient.

Also, the feedforward control is faster but it is difficult to predict all the manipulated variables.

Hence a combination of both is used.

Is This Answer Correct ?

2 Yes

0 No

Why would an Engineer consider combining FEEDBACK and FEEDFORWARD control in some applications?..

Answer / r.murugan

Feed forward control required three inputs like drum level
control (steam flow,drum level,feedwater flow

closed loop control with feedback only applicable

Is This Answer Correct ?

1 Yes

0 No

Why would an Engineer consider combining FEEDBACK and FEEDFORWARD control in some applications?..

Answer / bhag singh

control valve

Is This Answer Correct ?

0 Yes

8 No

Post New Answer

More Instrumentation Interview Questions

dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.

0 Answers CPL,

Pl send the model question paper of mahagenco account officer post

0 Answers MahaGenco,

The pressure class rating (such as 150 lb, 300 lb, etc.) of a line appears in the form of ________________ in the Line Number (or Line Designation) on a P&ID

1 Answers

HOW CREATED LP & HP PRESURES IN DRUM FOR DRUM LEVEL MEASUREMENT!

0 Answers

why using 4-20ma not using 0-20or why not using 1- 20ma???????

7 Answers

how does pressure is converted into milli amps in pressure transmitter? plzzz explain practically

1 Answers rsystems,

What unit is used for measuring comp. outlet flow. it is CFM, M3/hr or NM3/hr. ?

5 Answers Jk Tyres,

why is negative range given to measure the steam drum level

2 Answers Jindal,

what do u mean by compensation n pid tunning?in pid tunning what you tunned?is it possible 2 tune p i d

2 Answers

plz... clarify my answer, how to calibrate vaccum (DP)leveltransmitter,it is hart. (digital).DETAILS:(coloumn)closedtank height 2650mm,and tx range is 0-1500mmH20.

2 Answers KNPC,

What is cable size for intrenal wiring in DCS or PLC ,from any card to Terminal amd Why

2 Answers

what is the basic principal of vertax flow meter

3 Answers Balrampur Chini Mill, Saba,

For more Instrumentation Interview Questions Click Here