Longitudinal Nonlinear PID Controller Parameter Optimization of Autopilot Using Genetic Algorithm

Xin Zhao; Wei Ping Zhao; Song Xiang

doi:10.4028/www.scientific.net/AMM.709.252

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 709Longitudinal Nonlinear PID Controller Parameter...

Longitudinal Nonlinear PID Controller Parameter Optimization of Autopilot Using Genetic Algorithm

Abstract:

This paper performed the longitudinal nonlinear PID Controller parameter optimization of general aircraft autopilot based on the longitudinal channel model and genetic algorithm. Proportion, integration and differential gain of nonlinear PID Controller is nonlinear function of controlling error. The objection function involves time integration of error’s absolute value, output of controller and system overshoot. The longitudinal controlling rate optimization of general aircraft autopilot is realized by minimizing the objection function value. Simulation results show that controller designed by the present method is better than traditional PID controller.

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Periodical:

Applied Mechanics and Materials (Volume 709)

Pages:

252-255

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.709.252

Citation:

Cite this paper

Online since:

December 2014

Authors:

Xin Zhao*, Wei Ping Zhao, Song Xiang

Keywords:

Flight Control, General Aviation Aircraft, Genetic Algorithm (GA), Nonlinear PID

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* - Corresponding Author

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