Lateral acceleration control of aircraft using PID, linear quadratic regulator (LQR) and linear quadratic integral (LQI); A comparative case study

Abstract

Maneuverability is one of the key factors associated with fighter aircrafts. Effect of side slip in the form of lateral acceleration can significantly affect the stability of aircraft during maneuvers like coordination and therefore, must be addressed hydro-mechanically or electrically on aircrafts. Aircraft lateral acceleration models have been developed and control is implemented using Proportional integral Derivative­PID, Linear Quadratic Regulator-LQR and Linear Quadratic Integral-LQI. The responses of three are shown and compared. Results appreciate effectiveness of modern control techniques in contrast to classical control.