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Frequency selective dual control for periodic disturbance cancellation
Author(s) -
Veres S. M.
Publication year - 2000
Publication title -
international journal of robust and nonlinear control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 106
eISSN - 1099-1239
pISSN - 1049-8923
DOI - 10.1002/1099-1239(20000730)10:9<709::aid-rnc498>3.0.co;2-v
Subject(s) - feed forward , control theory (sociology) , repetitive control , dual (grammatical number) , computer science , disturbance (geology) , adaptation (eye) , control (management) , scheme (mathematics) , harmonic , adaptive control , automatic frequency control , robust control , control engineering , control system , engineering , mathematics , telecommunications , artificial intelligence , art , paleontology , mathematical analysis , physics , electrical engineering , literature , optics , quantum mechanics , biology
Abstract This work combines two well‐known approaches to control: dual control and harmonic control. The combination results in high speed of adaptation and the possibility of using feedback controllers in practical situations where traditionally feedforward controllers were preferred. The use of frequency‐selective filters results in fast adaptation without substantial increase in on‐line computing effort. The approach proposed is more suitable for adaptive cancellation of periodic output disturbances. Dual controllers are computed around each relevant frequency of the disturbance and the control input to the plant is synthesized from them. Simulations illustrate how the control scheme works. Copyright © 2000 John Wiley & Sons, Ltd.