Preview Control for Discrete Time Systems

Author(s):  
Akhilesh Kumar Ravat ◽  
Amit Dhawan ◽  
Manish Tiwari
2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Hongxia Wang ◽  
Huanshui Zhang ◽  
Lihua Xie

This paper considers theH∞preview control problem for discrete-time systems. It investigates the problem via game theory and dynamic programming. Different from the existing results, on one hand, the proposed approach is suitable for dealing with the corresponding multiple preview channels problem; on the other hand, the approach provides a possibility in explaining how the preview controller improves theH∞performance and why the performance will be saturated.


2016 ◽  
Vol 40 (23-24) ◽  
pp. 9932-9946 ◽  
Author(s):  
Di Wang ◽  
Fucheng Liao ◽  
Masayoshi Tomizuka

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Fucheng Liao ◽  
Yujian Guo

This paper studies the disturbance preview optimal control problem for discrete-time systems with multirate output sampling. By constructing the error system and using the discrete lifting technique, we reduce the multirate preview control problem to a single-rate one for a formal augmented system. Then, applying preview control theory, the optimal preview control law of the augmented error system is obtained. Meanwhile, we introduce a discrete integrator to eliminate the static error. Then we study a method to design a controller with preview action for the original system. And the existence conditions of the controller are also discussed in detail. Finally, numerical simulation is included to illustrate the effectiveness of the proposed method.


2017 ◽  
Vol 19 (4) ◽  
pp. 1542-1556 ◽  
Author(s):  
Li Li ◽  
Fucheng Liao ◽  
Jiamei Deng

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