Open AccessH∞BASEDOBSERVER FOR DISTURBANCE COMPENSATION IN DECOUPLED TRMS USING LMI OPTIMIZATION
Author(s) -
S Lekshmi,
Jeevamma Jacob
Publication year - 2014
Publication title -
international journal of electrical and electronics engineering
Language(s) - English
Resource type - Journals
ISSN - 2231-5284
DOI - 10.47893/ijeee.2014.1101
Subject(s) - control theory (sociology) , disturbance (geology) , compensation (psychology) , rotor (electric) , domain (mathematical analysis) , filter (signal processing) , simple (philosophy) , frequency domain , computer science , mimo , inverse , control engineering , engineering , control (management) , channel (broadcasting) , mathematics , geology , mechanical engineering , psychology , paleontology , artificial intelligence , psychoanalysis , mathematical analysis , philosophy , computer network , geometry , epistemology , computer vision
Twin Rotor MIMO System is a laboratory model of helicopter. In this paper, the problem of disturbance rejection in TRMS is dealt with. Using disturbance observers, without any additional sensors is an attractive method to attenuate the effects of disturbances as they are highly cost effective. This method uses a simple form of DOBs, which does not need to solve the plant model inverse, and uses H∞control method using LMIs to design the Q-filter in the DOB. The estimation capability of DOB is verified using simulation results in frequency domain as well as in time domain.