How much should be the values and/or percentages of these
given below factors for a good controller ?
Steady state error
Delay
Rise Time
Overshoot
Peak Time
Settling Time
Damping
Oscillations & vibrations
thanks
Answer Posted / rajkumar
A proportional controller (Kp) will have the effect of
reducing the rise time and will reduce ,but never eliminate,
the steady-state error. An integral control (Ki) will have
the effect of eliminating the steady-state error, but it may
make the transient response worse. A derivative control (Kd)
will have the effect of increasing the stability of the
system, reducing the overshoot, and improving the transient
response.
for full details visit
http://www.engin.umich.edu/group/ctm/PID/PID.html
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
What is shielding effect?
pls give me presant awerness quistion and answer in my emailid.
What are primary elements of measuring pressure?
What are different types of orifice plates? State their uses.
plz tell me clearly about PID.."when v have to change I value,D value,GAIN??
What is the minimum rating availalbe for weld neck orifice in market?
What is the use of single seated valve?
Hi Friends i am going to write BARC written test by this month 20th (20-5-2008). So please if any body knows the details about this or having previous question papers pls mail me to kkumarei@gmail.com. For Suggestions give one message to 9962122264
What is the difference between working pressure and calibration pressure of a control valve
I want measure the volumetric flow of gas in waste heat recovery Boiler?Tell me how and which type of instruments required. Plz mail me:naba02222@gmail.com Sam please post the answer .
anybody having Qatar Petroleum questions for instrument Technician offshore ....please send me
hello can yoy pls send me previous papers of jindalpower and steel ltd.....'m from instrumentation..... mani1048@gmail.com
What are different types of cable?
can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know
Hi, Is there any smart plant instrumentation design training institute in Bangalore?