Longitudinal control of a fixed wing UAV

• David Villota Miranda ^[1] ; Montserrat Gil-Martínez ^[1] ; Javier Rico-Azagra ^[1]
  1. [1] Universidad de La Rioja

     Universidad de La Rioja

     Logroño, España

     
• Localización: XXXIX Jornadas de Automática: actas. Badajoz, 5-7 de septiembre de 2018 / coord. por Inés Tejado Balsera, Emiliano Pérez Hernández, Antonio José Calderón Godoy, Isaías González Pérez, María Pilar Merchán García, Jesús Salvador Lozano Rogado, Santiago Salamanca Miño, Blas Manuel Vinagre Jara, 2018, ISBN 978-84-9749-756-5, págs. 598-604
• Idioma: inglés
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• Resumen

  • This article presents an approach to the mathematical model of a fixed wing unmanned aerial vehicle prototype. The model is split in two different parts, related to the longitudinal and lateral stability, respectively. For this, Newton-Euler formulation is used as well as basic aerodynamic theory. Aerodynamic coefficients, inertias and characteristic points of the aircraft are obtained through simulations with an open-source software called XFLR-5, and the physical parameters of the model match the prototype’s. Then, a longitudinal control strategy describes the altitude control in a cascade architecture, whose inner loop conveniently manoeuvres the pitch angle by acting on the symmetric flag deflection. Frequency domain techniques are used to design PID controllers.