Yaw and pitch control of a twin rotor MIMO system

Author(s):  
Jagannath Wijekoon ◽  
Yasitha Liyanage ◽  
Shirantha Welikala ◽  
Lilantha Samaranayake

This paper elaborates the controller and observer system with all mathematical modeling of Twin Rotor MIMO System (TRMS) which is eminently nonlinear system. TRMS is 2 DOF (Degree of Freedom) helicopter model which originated in company called Feedback Instrument Limited for controlling and experimenting of different algorithms. Two DOFs i.e. Yaw and Pitch control need to control by using controller, that imply to track a desired path. Nowadays, the Unmanned Aerial Vehicles (UAV) has been tremendously useful for road traffic by video surveillance and supervisions for public purposes. Because of capacity to hover, helicopters can be used in any environmental conditions. Hence, Scope of TRMS studies has been increasing.


Author(s):  
LEKSHMI S ◽  
JEEVAMMA JACOB

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.


2018 ◽  
Vol 36 (6) ◽  
pp. 547-567
Author(s):  
Debdoot Sain ◽  
Subrat Kumar Swain ◽  
Ayan Saha ◽  
Sudhansu Kumar Mishra ◽  
Sarbani Chakraborty

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