Title :
Wavelet-based technique for feedback control of uncertain systems — A case study
Author :
Dineva, Adrienn ; Varkonyi-Koczy, Annamaria R. ; Tar, Jozsef K.
Author_Institution :
Doctoral Sch. of Appl. Inf., Obuda Univ., Budapest, Hungary
Abstract :
In designing control systems an important aim is minimizing the effects of uncertainties on system performance. The time-frequency characteristics of wavelets are useful for applications that require online response, such as controlling a process. It is proven, that the wavelet based controllers perform extremely well under certain definite conditions. In this paper, the multiscale representation of the error signal is investigated in direct feedback. The control method is applied to a temperature control task. Simulation results show satisfactory performance and highly efficient disturbance rejection. Advantages and drawbacks of the wavelet based control strategy are also discussed.
Keywords :
control system synthesis; feedback; temperature control; time-frequency analysis; uncertain systems; wavelet transforms; control system design; disturbance rejection; error signal; feedback control; multiscale representation; online response; process control; system performance; temperature control task; time-frequency characteristics; uncertain systems; wavelet based controllers; wavelet-based technique; Control systems; Filtering theory; Mathematical model; Multiresolution analysis; Signal resolution; Wavelet transforms;
Conference_Titel :
Computational Intelligence and Informatics (CINTI), 2013 IEEE 14th International Symposium on
Conference_Location :
Budapest
Print_ISBN :
978-1-4799-0194-4
DOI :
10.1109/CINTI.2013.6705206
