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Chapter 4  Process Control ,[object Object],[object Object]
5. Time Response of a Controller ,[object Object],[object Object],[object Object],[object Object]
Cont. ,[object Object],[object Object],[object Object],[object Object],[object Object]
Basic P, I & D Proportional Integral Differential Manipulated variable output is proportional to the system deviation The rate of change of manipulated variable is proportional to the system deviation The value of manipulated variable is proportional to the speed of change of system deviation
Proportional Controller ,[object Object],[object Object]
Cont. ,[object Object]
Cont. ,[object Object],[object Object]
Question 1 ,[object Object],[object Object],[object Object],[object Object]
Cont. ,[object Object],[object Object],[object Object],[object Object]
Integral controller ,[object Object],[object Object],[object Object]
Cont. ,[object Object],[object Object]
Question 2 ,[object Object],[object Object],[object Object]
Question 3 ,[object Object],[object Object],[object Object]
PI Controller ,[object Object],[object Object],[object Object],[object Object],[object Object]
Cont. ,[object Object],[object Object]
Cont. ,[object Object],[object Object],[object Object]
Question 4 ,[object Object],[object Object],[object Object]
PD Controller ,[object Object],[object Object],[object Object]
Cont. ,[object Object],[object Object],[object Object]
PID Controller ,[object Object],[object Object],[object Object]
Cont. ,[object Object],[object Object],[object Object]
Cont. ,[object Object]
6. Other Process Control Loop ,[object Object],[object Object],[object Object],[object Object]
Cont. ,[object Object],[object Object],[object Object]
Cascade ,[object Object],[object Object],FEEDBACK CONTROLLER
Cont. ,[object Object],[object Object],[object Object]
Cont. ,[object Object],[object Object]
Cont. ,[object Object],[object Object],CASCADE CONTROLLER
Cont. ,[object Object],[object Object]
Cascade block diagram ,[object Object],[object Object],FCV
Feedforward ,[object Object],[object Object],[object Object],[object Object]
Case I: Feedforward (Driver control)  ,[object Object],[object Object],[object Object]
Cont. ,[object Object],[object Object]
Case II: Feedback  (Cruise control) ,[object Object],[object Object],[object Object],[object Object]
Cont. ,[object Object],[object Object],[object Object]
Feedforward – Disturbance signal ,[object Object],[object Object],[object Object],[object Object]
Problem example ,[object Object],[object Object],[object Object]
Cont. ,[object Object],[object Object],[object Object],[object Object]
Cont. ,[object Object]
System improvement (feedforward) ,[object Object],[object Object]
System operation ,[object Object],[object Object]
Cont. ,[object Object],[object Object]
System block diagram ,[object Object]
Cont. ,[object Object],[object Object]
Ratio ,[object Object],[object Object]
Cont. ,[object Object]
Cont. ,[object Object],[object Object],[object Object],[object Object],[object Object]

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Process control time response PID controller

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