DocumentCode :
3461170
Title :
PLL in cooperated with PI controller for flow control system
Author :
Wanchana, S. ; Benjanarasuth, T. ; Komine, N. ; Ngamwiwit, J.
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Volume :
5
fYear :
1999
fDate :
1999
Firstpage :
27
Abstract :
Presents a flow control system using the phase-locked loop technique in cooperation with a PI controller. The PI controller is utilized to pull the flow rate of the system into the phase-locked loop locking range and the steady state flow rate is controlled later by the phase-locked loop. An experimental system is implemented to evaluate the performance of the flow control system using the proposed control method. The experimental results in control the system in the laboratory show that the overshoot is approximately 10% for the 50% step input of the maximum flow rate and the steady-state error is smaller than ±2%. The experimental results also indicate that the effect of load disturbance is rapidly rejected
Keywords :
flow control; phase locked loops; stability; transfer functions; two-term control; PI controller; flow control system; flow rate; load disturbance rejection; phase-locked loop technique; Automatic control; Communication system control; Control systems; Error correction; Open loop systems; Phase locked loops; Pi control; Proportional control; Steady-state; Telecommunication control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Systems, Man, and Cybernetics, 1999. IEEE SMC '99 Conference Proceedings. 1999 IEEE International Conference on
Conference_Location :
Tokyo
ISSN :
1062-922X
Print_ISBN :
0-7803-5731-0
Type :
conf
DOI :
10.1109/ICSMC.1999.815514
Filename :
815514
Link To Document :
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