Modified Smith predictor for frequency identification and disturbance rejection of single sinusoidal signal

2010 ◽  
Vol 49 (1) ◽  
pp. 95-105 ◽  
Author(s):  
Da Zheng ◽  
Jian’an Fang ◽  
Zhengyun Ren
Keyword(s):  
Disturbance Rejection ◽  
Smith Predictor ◽  
Sinusoidal Signal ◽  
Modified Smith Predictor ◽  
Frequency Identification

scholarly journals Enhanced PID Controllers Design Based on Modified Smith Predictor Control for Unstable Process with Time Delay

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Chengqiang Yin ◽  
Jie Gao ◽  
Qun Sun
Keyword(s):  
Time Delay ◽  
Disturbance Rejection ◽  
Direct Synthesis ◽  
Synthesis Method ◽  
Engineering Application ◽  
Smith Predictor ◽  
Superior Performance ◽  
Set Point ◽  
Point Tracking ◽  
Modified Smith Predictor

A two-degree-of-freedom control structure is proposed for a class of unstable processes with time delay based on modified Smith predictor control; the superior performance of disturbance rejection and good robust stability are gained for the system. The set-point tracking controller is designed using the direct synthesis method; the IMC-PID controller for disturbance rejection is designed based on the internal mode control design principle. The controller for set-point response and the controller for disturbance rejection can be adjusted and optimized independently. Meanwhile, the two controllers are designed in the form of PID, which is convenient for engineering application. Finally, simulation examples demonstrate the validity of the proposed control scheme.

Performance Analysis of Modified Smith Predictor for Integrating and Time-Delay Processes

2011 ◽  
Vol 53 (4) ◽  
pp. 261-270
Author(s):  
G. Saravana Kumar ◽  
R.S.D. Wahidabanu ◽  
K.G. Arun Raajesh
Keyword(s):  
Time Delay ◽  
Performance Analysis ◽  
Smith Predictor ◽  
Modified Smith Predictor
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